add languages files

Reviewed-on: #3

.env.example

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+PROJECT_NAME=""
+
+BACKEND_PATH="./Backend"
+FRONTEND_PATH=""
+
+POSTGRES_USER=""
+POSTGRES_DB=""
+POSTGRES_PASSWORD=""

.gitignore

@@ -0,0 +1,2 @@
+.idea
+.env

README.md

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+# payment gateway

backend/.dockerignore

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+#.git
+#.gitignore
+#README.md
+#.env
+#.env.backup
+#node_modules
+#npm-debug.log
+#yarn-error.log
+#vendor/
+#storage/logs/*
+#storage/framework/cache/*
+#storage/framework/sessions/*
+#storage/framework/views/*
+#bootstrap/cache/*
+#.phpunit.result.cache
+#Homestead.json
+#Homestead.yaml
+#auth.json

backend/.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.{yml,yaml}]
+indent_size = 2
+
+[{compose,docker-compose}.{yml,yaml}]
+indent_size = 4

backend/.env.example

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+APP_NAME=Laravel
+APP_ENV=local
+APP_KEY=
+APP_DEBUG=true
+APP_URL=http://localhost
+
+APP_LOCALE=en
+APP_FALLBACK_LOCALE=en
+APP_FAKER_LOCALE=en_US
+
+APP_MAINTENANCE_DRIVER=file
+# APP_MAINTENANCE_STORE=database
+
+# PHP_CLI_SERVER_WORKERS=4
+
+BCRYPT_ROUNDS=12
+
+LOG_CHANNEL=stack
+LOG_STACK=single
+LOG_DEPRECATIONS_CHANNEL=null
+LOG_LEVEL=debug
+
+DB_CONNECTION=pgsql
+DB_HOST=127.0.0.1
+DB_PORT=5432
+DB_DATABASE=backend
+DB_USERNAME=root
+DB_PASSWORD=
+
+SESSION_DRIVER=database
+SESSION_LIFETIME=120
+SESSION_ENCRYPT=false
+SESSION_PATH=/
+SESSION_DOMAIN=null
+
+BROADCAST_CONNECTION=log
+FILESYSTEM_DISK=local
+QUEUE_CONNECTION=database
+
+CACHE_STORE=database
+# CACHE_PREFIX=
+
+MEMCACHED_HOST=127.0.0.1
+
+REDIS_CLIENT=phpredis
+REDIS_HOST=127.0.0.1
+REDIS_PASSWORD=null
+REDIS_PORT=6379
+
+MAIL_MAILER=log
+MAIL_SCHEME=null
+MAIL_HOST=127.0.0.1
+MAIL_PORT=2525
+MAIL_USERNAME=null
+MAIL_PASSWORD=null
+MAIL_FROM_ADDRESS="hello@example.com"
+MAIL_FROM_NAME="${APP_NAME}"
+
+AWS_ACCESS_KEY_ID=
+AWS_SECRET_ACCESS_KEY=
+AWS_DEFAULT_REGION=us-east-1
+AWS_BUCKET=
+AWS_USE_PATH_STYLE_ENDPOINT=false
+
+VITE_APP_NAME="${APP_NAME}"
+
+FIB_AUTHORIZATION_URL=
+FIB_CLIENT_ID=
+FIB_CLIENT_SECRET=
+
+FIB_CREATE_PAYMENT_URL
+
+FIB_CHECK_PAYMENT_STATUS_URL
+
+FIB_CANCEL_PAYMENT_URL
+
+FIB_REFUND_URL

backend/.gitattributes

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+* text=auto eol=lf
+
+*.blade.php diff=html
+*.css diff=css
+*.html diff=html
+*.md diff=markdown
+*.php diff=php
+
+/.github export-ignore
+CHANGELOG.md export-ignore
+.styleci.yml export-ignore

backend/.gitignore

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+*.log
+.DS_Store
+.env
+.env.backup
+.env.production
+.phpactor.json
+.phpunit.result.cache
+/.codex
+/.cursor/
+/.idea
+/.nova
+/.phpunit.cache
+/.vscode
+/.zed
+/auth.json
+/node_modules
+/public/build
+/public/hot
+/public/storage
+/storage/*.key
+/storage/pail
+/vendor
+_ide_helper.php
+Homestead.json
+Homestead.yaml
+Thumbs.db

backend/.npmrc

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+ignore-scripts=true
+audit=true

backend/Dockerfile

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+FROM php:8.5.3-fpm-alpine3.23
+
+# Install common PHP extension dependencies
+RUN apk update && apk add --no-cache \
+    bash \
+    curl \
+    libpng \
+    libpng-dev \
+    libjpeg-turbo-dev \
+    freetype-dev \
+    libwebp-dev \
+    libxml2-dev \
+    unzip \
+    libzip-dev \
+    libpq-dev \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp \
+    && docker-php-ext-install pdo_pgsql gd zip
+
+# Set the working directory
+WORKDIR /var/www/payment
+
+COPY . .
+
+RUN chmod -R 775 /var/www/payment/storage /var/www/payment/bootstrap/cache
+
+# Install Composer
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Default command
+CMD composer install ;\
+    composer dump-autoload --optimize --classmap-authoritative ;\
+    php artisan key:generate ;\
+    php artisan migrate ;\
+    php artisan db:seed ;\
+    php-fpm

backend/Dockerfile.production

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+FROM docker.arvancloud.ir/composer:latest AS builder
+
+WORKDIR /app
+
+COPY composer.json composer.lock ./
+
+RUN composer install \
+    --no-dev \
+    --no-scripts \
+    --no-autoloader \
+    --prefer-dist
+
+COPY . .
+
+RUN composer dump-autoload --optimize --classmap-authoritative
+
+FROM php:8.5.3-fpm-alpine3.23 AS application
+
+RUN apk update && apk add --no-cache \
+    bash \
+    curl \
+    libpng \
+    libpng-dev \
+    libjpeg-turbo-dev \
+    freetype-dev \
+    libwebp-dev \
+    libxml2-dev \
+    unzip \
+    libzip-dev \
+    libpq-dev \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp \
+    && docker-php-ext-install pdo_pgsql gd zip
+
+WORKDIR /var/www/payment
+
+COPY --from=builder /app /var/www/payment
+
+RUN chown -R www-data:www-data /var/www/payment \
+    && chmod -R 665 storage bootstrap/cache
+
+CMD ["php-fpm"]

backend/README.md

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+<p align="center"><a href="https://laravel.com" target="_blank"><img src="https://raw.githubusercontent.com/laravel/art/master/logo-lockup/5%20SVG/2%20CMYK/1%20Full%20Color/laravel-logolockup-cmyk-red.svg" width="400" alt="Laravel Logo"></a></p>
+
+<p align="center">
+<a href="https://github.com/laravel/framework/actions"><img src="https://github.com/laravel/framework/workflows/tests/badge.svg" alt="Build Status"></a>
+<a href="https://packagist.org/packages/laravel/framework"><img src="https://img.shields.io/packagist/dt/laravel/framework" alt="Total Downloads"></a>
+<a href="https://packagist.org/packages/laravel/framework"><img src="https://img.shields.io/packagist/v/laravel/framework" alt="Latest Stable Version"></a>
+<a href="https://packagist.org/packages/laravel/framework"><img src="https://img.shields.io/packagist/l/laravel/framework" alt="License"></a>
+</p>
+
+## About Laravel
+
+Laravel is a web application framework with expressive, elegant syntax. We believe development must be an enjoyable and creative experience to be truly fulfilling. Laravel takes the pain out of development by easing common tasks used in many web projects, such as:
+
+- [Simple, fast routing engine](https://laravel.com/docs/routing).
+- [Powerful dependency injection container](https://laravel.com/docs/container).
+- Multiple back-ends for [session](https://laravel.com/docs/session) and [cache](https://laravel.com/docs/cache) storage.
+- Expressive, intuitive [database ORM](https://laravel.com/docs/eloquent).
+- Database agnostic [schema migrations](https://laravel.com/docs/migrations).
+- [Robust background job processing](https://laravel.com/docs/queues).
+- [Real-time event broadcasting](https://laravel.com/docs/broadcasting).
+
+Laravel is accessible, powerful, and provides tools required for large, robust applications.
+
+## Learning Laravel
+
+Laravel has the most extensive and thorough [documentation](https://laravel.com/docs) and video tutorial library of all modern web application frameworks, making it a breeze to get started with the framework.
+
+In addition, [Laracasts](https://laracasts.com) contains thousands of video tutorials on a range of topics including Laravel, modern PHP, unit testing, and JavaScript. Boost your skills by digging into our comprehensive video library.
+
+You can also watch bite-sized lessons with real-world projects on [Laravel Learn](https://laravel.com/learn), where you will be guided through building a Laravel application from scratch while learning PHP fundamentals.
+
+## Agentic Development
+
+Laravel's predictable structure and conventions make it ideal for AI coding agents like Claude Code, Cursor, and GitHub Copilot. Install [Laravel Boost](https://laravel.com/docs/ai) to supercharge your AI workflow:
+
+```bash
+composer require laravel/boost --dev
+
+php artisan boost:install
+```
+
+Boost provides your agent 15+ tools and skills that help agents build Laravel applications while following best practices.
+
+## Contributing
+
+Thank you for considering contributing to the Laravel framework! The contribution guide can be found in the [Laravel documentation](https://laravel.com/docs/contributions).
+
+## Code of Conduct
+
+In order to ensure that the Laravel community is welcoming to all, please review and abide by the [Code of Conduct](https://laravel.com/docs/contributions#code-of-conduct).
+
+## Security Vulnerabilities
+
+If you discover a security vulnerability within Laravel, please send an e-mail to Taylor Otwell via [taylor@laravel.com](mailto:taylor@laravel.com). All security vulnerabilities will be promptly addressed.
+
+## License
+
+The Laravel framework is open-sourced software licensed under the [MIT license](https://opensource.org/licenses/MIT).

backend/app/Facades/DataTable/DataTable.php

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+<?php
+
+namespace App\Facades\DataTable;
+
+use App\Services\DataTable\DataTableInput;
+use App\Services\DataTable\DataTableService;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Contracts\Database\Query\Builder;
+use Illuminate\Http\Request;
+use App\Services\DataTable\Exceptions\InvalidParameterInterface;
+
+class DataTable
+{
+    /**
+     * Extracts data from request, passes to datatable service and prepares data for response.
+     * @param Model|Builder $mixed
+     * @param Request $request
+     * @param array $allowedFilters
+     * @param array $allowedRelations
+     * @param array $allowedSortings
+     * @param array $allowedSelects
+     * @return array
+     * @throws InvalidParameterInterface if input parameters are invalid.
+     */
+    public function run(
+        Model|Builder $mixed,
+        Request       $request,
+        array         $allowedFilters = [],
+        array         $allowedRelations = [],
+        array         $allowedSortings = [],
+        array         $allowedSelects = [],
+        array         $allowedGroupBy = []
+    ): array
+    {
+
+        $filters = json_decode($request->filters);
+        $sorting = json_decode($request->sorting);
+        $rels = $request->rels ?: array();
+
+        $dataTableInput = new DataTableInput(
+            $request->start,
+            $request->size,
+            $filters,
+            $sorting,
+            $rels,
+            $allowedFilters,
+            $allowedSortings,
+            $allowedGroupBy
+        );
+
+        $query = $this->makeQueryFromModel($mixed);
+
+        $dataTableService = (new DataTableService($query, $dataTableInput))
+            ->setAllowedFilters($allowedFilters)
+            ->setAllowedRelations($allowedRelations)
+            ->setAllowedSortings($allowedSortings)
+            ->setAllowedSelects($allowedSelects)
+            ->setAllowedGroupBy($allowedGroupBy);
+
+        return $dataTableService->getData();
+    }
+
+    protected function makeQueryFromModel(Model|Builder $mixed): Builder
+    {
+        return ($mixed instanceof Model) ? $mixed->query() : $mixed;
+    }
+}

backend/app/Facades/DataTable/DataTableFacade.php

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+<?php
+
+namespace App\Facades\DataTable;
+
+use Illuminate\Support\Facades\Facade;
+
+class DataTableFacade extends Facade
+{
+    protected static function getFacadeAccessor(): string
+    {
+        return DataTable::class;
+    }
+}

backend/app/Facades/File/File.php

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+<?php
+
+namespace App\Facades\File;
+
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Http\File as HttpFile;
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Str;
+use InvalidArgumentException;
+
+class File
+{
+    public function save(HttpFile|UploadedFile $file, string $path, string $name = null, string $disk = 'public'): string
+    {
+        return Storage::disk($disk)->putFileAs(
+            $path,
+            $file,
+            $name ?? Str::uuid() . '.' . $file->extension()
+        );
+    }
+
+    /**
+     * @param string $filePath
+     * @param bool $url_is_absolute
+     * @param string $disk
+     * @return void
+     * @throws InvalidArgumentException when filePath is empty.
+     */
+    public function delete(string $filePath, bool $url_is_absolute = false, string $disk = 'public'): void
+    {
+        if (!$filePath){
+            throw new InvalidArgumentException('File path is invalid.');
+        }
+
+        if ($url_is_absolute) {
+            $needle = 'storage/';
+            $pos = strpos($filePath, $needle);
+            $filePath = substr($filePath, $pos + strlen($needle));
+        }
+
+        if (Storage::disk($disk)->exists($filePath)) {
+            Storage::disk($disk)->delete($filePath);
+        }
+    }
+
+    public function deleteContent($file_path): bool
+    {
+        if (file_exists($file_path)) {
+            file_put_contents($file_path, '');
+
+            return true;
+        }
+        return false;
+    }
+
+    public function tail($file_path, $lines = 100, $buffer = 2048): bool|string
+    {
+        // Open file
+        $file = @fopen($file_path, "rb");
+        if ($file === false) {
+            return false;
+        }
+
+        // Jump to last character
+        fseek($file, -1, SEEK_END);
+
+        // Read it and adjust line number if necessary
+        // (Otherwise the result would be wrong if file doesn't end with a blank line)
+        if (fread($file, 1) != "\n") {
+            $lines -= 1;
+        }
+
+        // Start reading
+        $output = '';
+        $chunk = '';
+
+        // While we would like more
+        while (ftell($file) > 0 && $lines >= 0) {
+
+            // Figure out how far back we should jump
+            $seek = min(ftell($file), $buffer);
+
+            // Do the jump (backwards, relative to where we are)
+            fseek($file, -$seek, SEEK_CUR);
+
+            // Read a chunk and prepend it to our output
+            $output = ($chunk = fread($file, $seek)) . $output;
+
+            // Jump back to where we started reading
+            fseek($file, -mb_strlen($chunk, '8bit'), SEEK_CUR);
+
+            // Decrease our line counter
+            $lines -= substr_count($chunk, "\n");
+        }
+
+        // While we have too many lines
+        // (Because of buffer size we might have read too many)
+        while ($lines++ < 0) {
+
+            // Find first newline and remove all text before that
+            $output = substr($output, strpos($output, "\n") + 1);
+        }
+
+        // Close file and return
+        fclose($file);
+        return trim($output);
+    }
+
+    public function deleteDirectory(string $path, string $disk = 'public'): void
+    {
+        Storage::disk($disk)->deleteDirectory($path);
+    }
+}

backend/app/Facades/File/FileFacade.php

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+<?php
+
+namespace App\Facades\File;
+
+use Illuminate\Support\Facades\Facade;
+
+class FileFacade extends Facade
+{
+    protected static function getFacadeAccessor(): string
+    {
+        return File::class;
+    }
+}

backend/app/Http/Controllers/Controller.php

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+<?php
+
+namespace App\Http\Controllers;
+
+abstract class Controller
+{
+    //
+}

backend/app/Models/User.php

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+<?php
+
+namespace App\Models;
+
+// use Illuminate\Contracts\Auth\MustVerifyEmail;
+use Database\Factories\UserFactory;
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Attributes\Hidden;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Notifications\Notifiable;
+use Laravel\Passport\HasApiTokens;
+
+#[Fillable(['name', 'email', 'password'])]
+#[Hidden(['password', 'remember_token'])]
+class User extends Authenticatable
+{
+    /** @use HasFactory<UserFactory> */
+    use HasFactory, Notifiable, HasApiTokens;
+
+    /**
+     * Get the attributes that should be cast.
+     *
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'email_verified_at' => 'datetime',
+            'password' => 'hashed',
+        ];
+    }
+}

backend/app/Providers/AppServiceProvider.php

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+<?php
+
+namespace App\Providers;
+
+use Illuminate\Support\ServiceProvider;
+use Laravel\Passport\Passport;
+
+class AppServiceProvider extends ServiceProvider
+{
+    /**
+     * Register any application services.
+     */
+    public function register(): void
+    {
+        //
+    }
+
+    /**
+     * Bootstrap any application services.
+     */
+    public function boot(): void
+    {
+        Passport::enablePasswordGrant();
+    }
+}

backend/app/Providers/DataTableServiceProvider.php

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+<?php
+
+namespace App\Providers;
+
+use App\Facades\DataTable\DataTable;
+use Illuminate\Support\ServiceProvider;
+
+class DataTableServiceProvider extends ServiceProvider
+{
+    /**
+     * Register services.
+     */
+    public function register(): void
+    {
+        $this->app->bind('datatable', function () {
+            return new DataTable();
+        });
+    }
+
+    /**
+     * Bootstrap services.
+     */
+    public function boot(): void
+    {
+        //
+    }
+}

backend/app/Providers/FileServiceProvider.php

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+<?php
+
+namespace App\Providers;
+
+use App\Facades\File\File;
+use Illuminate\Support\ServiceProvider;
+
+class FileServiceProvider extends ServiceProvider
+{
+    /**
+     * Register services.
+     */
+    public function register(): void
+    {
+        $this->app->bind('file', function () {
+            return new File();
+        });
+    }
+
+    /**
+     * Bootstrap services.
+     */
+    public function boot(): void
+    {
+        //
+    }
+}

backend/app/Services/DataTable/DataTableInput.php

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+<?php
+
+namespace App\Services\DataTable;
+
+use App\Services\DataTable\Filter\Filter;
+use App\Services\DataTable\Sort\Sort;
+
+class DataTableInput
+{
+    /**
+     * @param int $start
+     * @param int $size
+     * @param array $filters
+     * @param array $sorting
+     * @param array $rels
+     */
+    public function __construct(
+        private ?int   $start,
+        private ?int   $size,
+        private array $filters,
+        private ?array $sorting,
+        private array $rels,
+        private array $allowedFilters,
+        private array $allowedSortings,
+        private ?array $GroupBy,
+    )
+    {
+    }
+
+    public function getStart(): ?int
+    {
+        return $this->start;
+    }
+
+    public function getSize(): ?int
+    {
+        return $this->size;
+    }
+
+    /**
+     * @return array returns an array of Filter objects
+     */
+    public function getFilters(): array
+    {
+        $filters = array();
+
+        foreach ($this->filters as $filter) {
+            $filters[] = new Filter(
+                $filter->id,
+                $filter->value,
+                $filter->fn,
+                $filter->datatype,
+                $this->allowedFilters
+            );
+        }
+
+        return $filters;
+    }
+
+    /**
+     * @return array
+     */
+    public function getSorting(): ?array
+    {
+        $sorts = [];
+        if (!empty($this->sorting)){
+            foreach ($this->sorting as $sort) {
+                $sorts[] =  new Sort($sort->id, $sort->desc, $this->allowedSortings);
+            }
+        }
+        return $sorts;
+    }
+
+    public function getRelations(): array
+    {
+        return $this->rels;
+    }
+
+    public function getGroupBy(): ?array
+    {
+        return $this->GroupBy;
+    }
+}

backend/app/Services/DataTable/DataTableService.php

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+<?php
+
+namespace App\Services\DataTable;
+
+use App\Services\DataTable\Filter\ApplyFilter;
+use App\Services\DataTable\Sort\ApplySort;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class DataTableService
+{
+
+    protected array $allowedFilters;
+    protected array $allowedRelations;
+    protected array $allowedSortings;
+    protected array $allowedSelects;
+    protected array $allowedGroupBy;
+    private int $totalRowCount;
+
+    public function __construct(
+        protected Builder      $query,
+        private DataTableInput $dataTableInput
+    )
+    {
+    }
+
+    public function setAllowedFilters(array $allowedFilters): DataTableService
+    {
+        $this->allowedFilters = $allowedFilters;
+        return $this;
+    }
+
+    public function setAllowedRelations(array $allowedRelations): DataTableService
+    {
+        $this->allowedRelations = $allowedRelations;
+        return $this;
+    }
+
+    public function setAllowedSortings(array $allowedSortings): DataTableService
+    {
+        $this->allowedSortings = $allowedSortings;
+        return $this;
+    }
+
+    public function setAllowedSelects(array $allowedSelects): DataTableService
+    {
+        $this->allowedSelects = $allowedSelects;
+        return $this;
+    }
+
+    public function setAllowedGroupBy(array $allowedGroupBy): DataTableService
+    {
+        $this->allowedGroupBy = $allowedGroupBy;
+        return $this;
+    }
+
+    /**
+     * Handle 'getData' operations
+     * @return array
+     */
+    public function getData(): array
+    {
+        $query = $this->buildQuery();
+        $data = $query->get();
+
+        return array(
+            'data' => $data,
+            'meta' => [
+                'totalRowCount' => $this->totalRowCount
+            ]
+        );
+    }
+
+    protected function buildQuery(): Builder
+    {
+        $query = $this->query;
+
+        foreach ($this->dataTableInput->getFilters() as $filter) {
+            $query = (new ApplyFilter($query, $filter))->apply();
+        }
+
+        $query = $this->applySelect($query, $this->allowedSelects);
+        $query = $this->includeRelationsInQuery($query, $this->allowedRelations);
+        $query = $this->applyGroupBy($query, $this->allowedGroupBy);
+
+        $this->totalRowCount = $query->count();
+
+        if (!is_null($this->dataTableInput->getStart())) {
+            $query->offset($this->dataTableInput->getStart());
+        }
+
+        if(!is_null($this->dataTableInput->getSize())){
+            $query->limit($this->dataTableInput->getSize());
+        }
+
+        $sorting = $this->dataTableInput->getSorting();
+        foreach ($sorting as $sort){
+            $query = (new ApplySort($query, $sort))->apply();
+        }
+
+        return $query;
+    }
+
+    protected function applySelect(Builder $query, array $selectedFields): Builder
+    {
+        if (!empty($selectedFields)) {
+            $query->select($selectedFields);
+        }
+
+        return $query;
+    }
+
+    protected function applyGroupBy(Builder $query, array $groupBy): Builder
+    {
+        return empty($groupBy) ? $query : $query->groupBy($groupBy);
+    }
+
+    protected function includeRelationsInQuery(Builder $query, array $rels): Builder
+    {
+        if (!empty($rels)) {
+            $query->with($rels);
+        }
+
+        return $query;
+    }
+
+    // (later) define mapping of relation names to prevent relation name expose.
+    // (later) define mapping of column names to prevent column name expose.
+}

backend/app/Services/DataTable/Enums/DataType.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Services\DataTable\Enums;
+
+enum DataType: string
+{
+    case NUMERIC = 'numeric';
+    case TEXT = 'text';
+    case DATE = 'date';
+
+    public static function values(): array
+    {
+       return array_column(self::cases(), 'value');
+    }
+}

backend/app/Services/DataTable/Enums/SearchType.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Services\DataTable\Enums;
+
+enum SearchType: string
+{
+    case CONTAINS = 'contains';
+    case EQUALS = 'equals';
+    case NOT_EQUALS = 'notEquals';
+    case BETWEEN = 'between';
+    case GREATER_THAN = 'greaterThan';
+    case LESS_THAN = 'lessThan';
+    case FUZZY = 'fuzzy';
+
+    public static function values(): array
+    {
+       return array_column(self::cases(), 'value');
+    }
+}

backend/app/Services/DataTable/Exceptions/InvalidFilterException.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Services\DataTable\Exceptions;
+
+use Exception;
+
+class InvalidFilterException extends Exception implements InvalidParameterInterface
+{
+    protected $fieldName;
+
+    public function __construct($fieldName, $message = "", $code = 400, \Throwable $previous = null)
+    {
+        $this->fieldName = $fieldName;
+        parent::__construct($message, $code, $previous);
+    }
+
+    public function getFieldName()
+    {
+        return $this->fieldName;
+    }
+}

backend/app/Services/DataTable/Exceptions/InvalidParameterInterface.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Services\DataTable\Exceptions;
+
+interface InvalidParameterInterface
+{
+}

backend/app/Services/DataTable/Exceptions/InvalidRelationException.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Services\DataTable\Exceptions;
+
+use Exception;
+
+class InvalidRelationException extends Exception implements InvalidParameterInterface
+{
+    protected $fieldName;
+
+    public function __construct($fieldName, $message = "", $code = 400, \Throwable $previous = null)
+    {
+        $this->fieldName = $fieldName;
+        parent::__construct($message, $code, $previous);
+    }
+
+    public function getFieldName()
+    {
+        return $this->fieldName;
+    }
+}

backend/app/Services/DataTable/Exceptions/InvalidSortingException.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Services\DataTable\Exceptions;
+
+use Exception;
+
+class InvalidSortingException extends Exception implements InvalidParameterInterface
+{
+    protected $fieldName;
+
+    public function __construct($fieldName, $message = "", $code = 400, \Throwable $previous = null)
+    {
+        $this->fieldName = $fieldName;
+        parent::__construct($message, $code, $previous);
+    }
+
+    public function getFieldName()
+    {
+        return $this->fieldName;
+    }
+}

backend/app/Services/DataTable/Filter/ApplyFilter.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace App\Services\DataTable\Filter;
+
+use App\Services\DataTable\Enums\SearchType;
+use App\Services\DataTable\Exceptions\InvalidFilterException;
+use App\Services\DataTable\Filter\SearchFunctions\FilterBetween;
+use App\Services\DataTable\Filter\SearchFunctions\FilterContains;
+use App\Services\DataTable\Filter\SearchFunctions\FilterEquals;
+use App\Services\DataTable\Filter\SearchFunctions\FilterGreaterThan;
+use App\Services\DataTable\Filter\SearchFunctions\FilterLessThan;
+use App\Services\DataTable\Filter\SearchFunctions\FilterNotEquals;
+use App\Services\DataTable\Filter\SearchFunctions\SearchFilter;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class ApplyFilter
+{
+    private SearchFilter $searchFilter;
+
+    /**
+     * @param Builder $query
+     * @param Filter $filter
+     */
+    public function __construct(
+        private Builder $query,
+        private Filter  $filter,
+    )
+    {
+    }
+
+    public function apply(): Builder
+    {
+        $filter = $this->filter;
+        $query = $this->query;
+
+        $searchType = SearchType::from($filter->getFn());
+        switch ($searchType) {
+            case SearchType::CONTAINS:
+                $this->searchFilter = new FilterContains($query, $filter);
+                break;
+
+            case SearchType::EQUALS:
+                $this->searchFilter = new FilterEquals($query, $filter);
+                break;
+
+            case SearchType::NOT_EQUALS:
+                $this->searchFilter = new FilterNotEquals($query, $filter);
+                break;
+
+            case SearchType::BETWEEN:
+                $this->searchFilter = new FilterBetween($query, $filter);
+                break;
+
+            case SearchType::GREATER_THAN:
+                $this->searchFilter = new FilterGreaterThan($query, $filter);
+                break;
+
+            case SearchType::LESS_THAN:
+                $this->searchFilter = new FilterLessThan($query, $filter);
+                break;
+
+            default:
+                $searchFunction = $filter->getFn();
+                throw new InvalidFilterException($searchFunction, "search function `$searchFunction` is invalid.");
+
+        }
+
+        $relation = $this->filter->getRelation();
+        return method_exists($this->query->getModel(), $relation) ? $this->applyFilterToRelation($relation) : $this->searchFilter->apply();
+    }
+
+    protected function applyFilterToRelation(string $relation): Builder
+    {
+        return $this->query->whereHas($relation, function (Builder $query) {
+            $this->filter->removeRelationFromId();
+            $this->applyFilter($query, $this->filter);
+        });
+    }
+
+    private function applyFilter(Builder $query, Filter $filter): Builder
+    {
+        return (new ApplyFilter($query, $filter))->apply();
+    }
+}

backend/app/Services/DataTable/Filter/Filter.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Services\DataTable\Filter;
+
+use App\Services\DataTable\Validators\FilterValidator;
+
+class Filter
+{
+    private static FilterValidator $filterValidator;
+
+    /**
+     * @param string $id
+     * @param string|int|array $value
+     * @param string $fn
+     * @param string $datatype
+     * @param array $allowedFilters
+     * @throws \App\Services\DataTable\Exceptions\InvalidFilterException
+     */
+    public function __construct(
+        private string           $id,
+        private string|int|array $value,
+        private string           $fn,
+        private string           $datatype,
+        private array $allowedFilters
+    )
+    {
+        self::$filterValidator = FilterValidator::getInstance();
+        self::$filterValidator->isValid($this, $this->allowedFilters);
+    }
+
+    public function getId(): string
+    {
+        return $this->id;
+    }
+
+    public function getValue(): array|int|string
+    {
+        return $this->value;
+    }
+
+    public function getFn(): string
+    {
+        return $this->fn;
+    }
+
+    public function getDatatype(): string
+    {
+        return $this->datatype;
+    }
+
+    public function getRelation(): string
+    {
+        $fieldArray = explode('.', $this->id);
+        return count($fieldArray) > 1 ? $fieldArray[0] : '';
+    }
+
+    public function getColumn(): string
+    {
+        $fieldArray = explode('.', $this->id);
+        return array_pop($fieldArray);
+    }
+
+    public function removeRelationFromId(): void
+    {
+        $this->id = $this->getColumn();
+    }
+
+    public function setValue(int|array|string $value): void
+    {
+        $this->value = $value;
+    }
+
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterBetween.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterBetween extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $query = $this->query;
+        [$minVal, $maxVal] = $this->filter->getValue();
+
+        if ($minVal) {
+            if ($this->filter->getDatatype() == "date") {
+                $minVal = $minVal . " 00:00:00";
+            }
+            $this->filter->setValue($minVal);
+            $query = (new FilterGreaterThanOrEqual($this->query, $this->filter))->apply();
+        }
+
+        if ($maxVal) {
+            if ($this->filter->getDatatype() == "date") {
+                $maxVal = $maxVal . " 23:59:59";
+            }
+            $this->filter->setValue($maxVal);
+            $query = (new FilterLessThanOrEqual($this->query, $this->filter))->apply();
+        }
+
+        return $query;
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterContains.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterContains extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $column = $this->filter->getId();
+        $value = '%' . $this->filter->getValue() . '%';
+
+        if ($this->filter->getDatatype() == DataType::TEXT->value) {
+            $query = $this->searchIgnoreCase($column, $value);
+
+        } else {
+            $query = $this->query->where($column, 'LIKE', $value);
+        }
+
+        return $query;
+    }
+
+    private function searchIgnoreCase(string $column, string $value): Builder
+    {
+        $value = strtolower($value);
+        return $this->query->whereRaw("LOWER($column) LIKE ?", [$value]);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterEquals.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterEquals extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $column = $this->filter->getId();
+        $value = $this->filter->getValue();
+
+        if ($this->filter->getDatatype() == DataType::TEXT->value) {
+            $query = $this->searchIgnoreCase($column, $value);
+        } else {
+            $query = $this->query->where($column, $value);
+        }
+
+        return $query;
+    }
+
+    private function searchIgnoreCase(string $column, string $value): Builder
+    {
+        $value = strtolower($value);
+        return $this->query->whereRaw("LOWER($column) = ?", [$value]);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterGreaterThan.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterGreaterThan extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $value = ($this->filter->getDatatype() == DataType::NUMERIC) ?
+            (float)$this->filter->getValue() : $this->filter->getValue();
+
+        return $this->query->where($this->filter->getId(), '>', $value);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterGreaterThanOrEqual.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterGreaterThanOrEqual extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $value = ($this->filter->getDatatype() == DataType::NUMERIC) ?
+            (float)$this->filter->getValue() : $this->filter->getValue();
+
+        return $this->query->where($this->filter->getId(), '>=', $value);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterLessThan.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterLessThan extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $value = ($this->filter->getDatatype() == DataType::NUMERIC) ?
+            (float)$this->filter->getValue() : $this->filter->getValue();
+
+        return $this->query->where($this->filter->getId(), '<', $value);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterLessThanOrEqual.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Enums\DataType;
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterLessThanOrEqual extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $value = ($this->filter->getDatatype() == DataType::NUMERIC) ?
+            (float)$this->filter->getValue() : $this->filter->getValue();
+
+        return $this->query->where($this->filter->getId(), '<=', $value);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/FilterNotEquals.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use Illuminate\Contracts\Database\Query\Builder;
+
+class FilterNotEquals extends SearchFilter
+{
+
+    public function apply(): Builder
+    {
+        $column = $this->filter->getId();
+        $value = $this->filter->getValue();
+
+        return $this->query->whereNot($column, $value);
+    }
+}

backend/app/Services/DataTable/Filter/SearchFunctions/SearchFilter.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Services\DataTable\Filter\SearchFunctions;
+
+use App\Services\DataTable\Filter\Filter;
+use Illuminate\Contracts\Database\Query\Builder;
+
+abstract class SearchFilter
+{
+    /**
+     * @param Builder $query
+     * @param Filter $filter
+     */
+    public function __construct(
+        protected Builder $query,
+        protected Filter  $filter,
+    )
+    {
+    }
+
+    abstract public function apply(): Builder;
+}

backend/app/Services/DataTable/Sort/ApplySort.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Services\DataTable\Sort;
+
+use Illuminate\Contracts\Database\Query\Builder;
+
+class ApplySort
+{
+
+    /**
+     * @param Builder $query
+     * @param ?Sort $sort
+     */
+    public function __construct(
+        private Builder $query,
+        private ?Sort    $sort,
+    )
+    {
+    }
+
+    public function apply(): Builder
+    {
+        $query = $this->query;
+
+        if (!is_null($this->sort)) {
+            $query->orderBy($this->sort->getId(), $this->sort->getDirection());
+        }
+
+        return $query;
+    }
+}

backend/app/Services/DataTable/Sort/Sort.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Services\DataTable\Sort;
+
+use App\Services\DataTable\Validators\SortingValidator;
+
+class Sort
+{
+    private static SortingValidator $sortingValidator;
+
+    /**
+     * @param string $id
+     * @param bool $desc
+     * @param array $allowedSortings
+     * @throws \App\Services\DataTable\Exceptions\InvalidSortingException
+     */
+    public function __construct(
+        private string $id,
+        private bool   $desc,
+        private array $allowedSortings,
+    )
+    {
+        self::$sortingValidator = SortingValidator::getInstance();
+        self::$sortingValidator->isValid($this, $this->allowedSortings);
+    }
+
+    /**
+     * @return string
+     */
+    public function getId(): string
+    {
+        return $this->id;
+    }
+
+    public function getDirection(): string
+    {
+        return $this->desc === true ? 'desc' : 'asc';
+    }
+}

backend/app/Services/DataTable/Validators/FilterValidator.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Services\DataTable\Validators;
+
+use App\Services\DataTable\Enums\SearchType;
+use App\Services\DataTable\Enums\DataType;
+use App\Services\DataTable\Exceptions\InvalidFilterException;
+use App\Services\DataTable\Filter\Filter;
+
+class FilterValidator
+{
+    private static $instance;
+
+    private function __construct()
+    {
+    }
+
+    public static function getInstance(): FilterValidator
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = new static();
+        }
+
+        return self::$instance;
+    }
+
+    public function isValid(Filter $filter, array $allowedFilters): bool
+    {
+        if (!$this->isAllowed($filter, $allowedFilters)) {
+            $filterId = $filter->getId();
+            throw new InvalidFilterException($filter->getId(), "filtering field `$filterId` is not allowed.");
+        }
+
+        if (!$this->isValidSearchFunction($filter)) {
+            $searchFunction = $filter->getFn();
+            throw new InvalidFilterException($searchFunction, "search function `$searchFunction` is invalid.");
+        }
+
+        if ($this->isValidDataType($filter) == -1) {
+            throw new InvalidFilterException(null, "datatype property is not set in `filters` array.");
+        }
+
+        if (!$this->isValidDataType($filter)) {
+            $datatype = $filter->getDatatype();
+            throw new InvalidFilterException($datatype, "datatype `$datatype` is invalid.");
+        }
+
+        return true;
+    }
+
+    protected function isAllowed(Filter $filter, array $allowedFilters): bool
+    {
+        return $allowedFilters == ['*'] || in_array($filter->getId(), $allowedFilters);
+    }
+
+    protected function isValidSearchFunction(Filter $filter): bool
+    {
+        $searchFunction = $filter->getFn();
+        return isset($searchFunction) && in_array($searchFunction, SearchType::values());
+    }
+
+    protected function isValidDataType(Filter $filter): int
+    {
+        if (!property_exists($filter, 'datatype'))
+            return -1;
+
+        return $filter->getDatatype() && in_array($filter->getDatatype(), DataType::values()) ? 1 : 0;
+    }
+}

backend/app/Services/DataTable/Validators/RelationValidator.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Services\DataTable\Validators;
+
+use App\Services\DataTable\Exceptions\InvalidRelationException;
+
+class RelationValidator
+{
+    public static function validate(?array $rels, array $allowedRelations): bool
+    {
+        foreach ($rels as $relation) {
+
+            if (!self::isAllowed($relation, $allowedRelations)) {
+                throw new InvalidRelationException($relation, "relation `$relation` is not allowed.");
+            }
+        }
+
+        return true;
+    }
+
+    public static function isAllowed(string $relation, array $allowedRelations): bool
+    {
+        return !$relation || in_array($relation, $allowedRelations);
+    }
+}

backend/app/Services/DataTable/Validators/SortingValidator.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Services\DataTable\Validators;
+
+use App\Services\DataTable\Exceptions\InvalidSortingException;
+use App\Services\DataTable\Sort\Sort;
+
+class SortingValidator
+{
+    private static $instance;
+
+    private function __construct()
+    {
+    }
+
+    public static function getInstance(): SortingValidator
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = new static();
+        }
+
+        return self::$instance;
+    }
+
+    public function isValid(Sort $sorting, array $allowedSortings): bool
+    {
+        if (!$this->isAllowed($sorting, $allowedSortings)) {
+            $sortId = $sorting->getId();
+            throw new InvalidSortingException($sortId, "sorting field `$sortId` is not allowed.");
+        }
+
+        return true;
+    }
+
+    protected function isAllowed(Sort $sorting, array $allowedSortings): bool
+    {
+        return $allowedSortings == ['*'] || in_array($sorting->getId(), $allowedSortings);
+    }
+}

backend/app/User/Services/FIB/AuthorizationService.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\User\Services\FIB;
+
+use Exception;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class AuthorizationService
+{
+    protected string $url;
+    protected string $channelName;
+    protected array $inputParameters;
+
+    public function __construct()
+    {
+        $this->url = config('fib.authorization.url');
+        $this->channelName = '';
+        $this->inputParameters = [
+            'client_id' => config('fib.authorization.client_id'),
+            'client_secret' => config('fib.authorization.client_secret'),
+            'grant_type' => 'client_credentials',
+        ];
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function run(): array
+    {
+        try {
+            return $this->sendRequest();
+        }
+        catch (Exception $e) {
+            Log::channel($this->channelName)
+                ->error(get_class($this),
+                    [
+                        'message' => $e->getMessage(),
+                    ]
+                );
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @throws ConnectionException
+     */
+    public function sendRequest(): array
+    {
+        return Http::asForm()
+            ->throw()
+            ->withoutVerifying()
+            ->post($this->url, $this->inputParameters)
+            ->json();
+    }
+}

backend/app/User/Services/FIB/CancelPaymentService.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace App\User\Services\FIB;
+
+use Exception;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class CancelPaymentService
+{
+    protected string $url;
+    protected string $channelName;
+    protected string $accessToken;
+    protected array $headers;
+
+    public function __construct()
+    {
+        $this->url = config('fib.cancelPayment.url');
+        $this->channelName = '';
+    }
+
+    public function setHeaders(): void
+    {
+        $this->headers = [
+            'Authorization' => 'Bearer ' . $this->accessToken,
+            'Content-Type' => 'application/json',
+        ];
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function run(): array
+    {
+        try {
+            return $this->sendRequest();
+        }
+        catch (Exception $e) {
+            Log::channel($this->channelName)
+                ->error(get_class($this),
+                    [
+                        'message' => $e->getMessage(),
+                    ]
+                );
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @throws ConnectionException
+     */
+    public function sendRequest(): array
+    {
+        return Http::withHeaders($this->headers)
+            ->throw()
+            ->withoutVerifying()
+            ->post($this->url)
+            ->json();
+    }
+}

backend/app/User/Services/FIB/CheckPaymentStatusService.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\User\Services\FIB;
+
+use Exception;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class CheckPaymentStatusService
+{
+    protected string $url;
+    protected string $channelName;
+
+    public function __construct()
+    {
+        $this->url = config('fib.checkPaymentStatus.url');
+        $this->channelName = '';
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function run(): array
+    {
+        try {
+            return $this->sendRequest();
+        }
+        catch (Exception $e) {
+            Log::channel($this->channelName)
+                ->error(get_class($this),
+                    [
+                        'message' => $e->getMessage(),
+                    ]
+                );
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @throws ConnectionException
+     */
+    public function sendRequest(): array
+    {
+        return Http::throw()
+            ->withoutVerifying()
+            ->post($this->url)
+            ->json();
+    }
+}

backend/app/User/Services/FIB/CreatePaymentService.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\User\Services\FIB;
+
+use Exception;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class CreatePaymentService
+{
+    protected string $url;
+    protected string $channelName;
+    protected string $accessToken;
+    protected array $headers;
+    protected array $inputParameters;
+
+    public function __construct()
+    {
+        $this->url = config('fib.createPayment.url');
+        $this->channelName = '';
+    }
+
+    public function setAccessToken(string $accessToken): void
+    {
+        $this->accessToken = $accessToken;
+    }
+
+    public function setHeaders(): void
+    {
+        $this->headers = [
+            'Authorization' => 'Bearer ' . $this->accessToken,
+            'Content-Type' => 'application/json',
+        ];
+    }
+
+    public function setInputParameters(array $inputParameters): void
+    {
+        $this->inputParameters = $inputParameters;
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function run(): array
+    {
+        try {
+            return $this->sendRequest();
+        }
+        catch (Exception $e) {
+            Log::channel($this->channelName)
+                ->error(get_class($this),
+                    [
+                        'message' => $e->getMessage(),
+                    ]
+                );
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @throws ConnectionException
+     */
+    public function sendRequest(): array
+    {
+        return Http::withHeaders($this->headers)
+            ->throw()
+            ->withoutVerifying()
+            ->post($this->url, $this->inputParameters)
+            ->json();
+    }
+}

backend/app/User/Services/FIB/RefundService.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace App\User\Services\FIB;
+
+use Exception;
+use Illuminate\Http\Client\ConnectionException;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Log;
+
+class RefundService
+{
+    protected string $url;
+    protected string $channelName;
+    protected string $accessToken;
+    protected array $headers;
+
+    public function __construct()
+    {
+        $this->url = config('fib.refund.url');
+        $this->channelName = '';
+    }
+
+    public function setHeaders(): void
+    {
+        $this->headers = [
+            'Authorization' => 'Bearer ' . $this->accessToken,
+            'Content-Type' => 'application/json',
+        ];
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function run(): array
+    {
+        try {
+            return $this->sendRequest();
+        }
+        catch (Exception $e) {
+            Log::channel($this->channelName)
+                ->error(get_class($this),
+                    [
+                        'message' => $e->getMessage(),
+                    ]
+                );
+
+            throw $e;
+        }
+    }
+
+    /**
+     * @throws ConnectionException
+     */
+    public function sendRequest(): array
+    {
+        return Http::withHeaders($this->headers)
+            ->throw()
+            ->withoutVerifying()
+            ->post($this->url)
+            ->json();
+    }
+}

backend/artisan

@@ -0,0 +1,18 @@
+#!/usr/bin/env php
+<?php
+
+use Illuminate\Foundation\Application;
+use Symfony\Component\Console\Input\ArgvInput;
+
+define('LARAVEL_START', microtime(true));
+
+// Register the Composer autoloader...
+require __DIR__.'/vendor/autoload.php';
+
+// Bootstrap Laravel and handle the command...
+/** @var Application $app */
+$app = require_once __DIR__.'/bootstrap/app.php';
+
+$status = $app->handleCommand(new ArgvInput);
+
+exit($status);

backend/bootstrap/app.php

@@ -0,0 +1,19 @@
+<?php
+
+use Illuminate\Foundation\Application;
+use Illuminate\Foundation\Configuration\Exceptions;
+use Illuminate\Foundation\Configuration\Middleware;
+
+return Application::configure(basePath: dirname(__DIR__))
+    ->withRouting(
+        web: __DIR__.'/../routes/web.php',
+        api: __DIR__.'/../routes/api.php',
+        commands: __DIR__.'/../routes/console.php',
+        health: '/up',
+    )
+    ->withMiddleware(function (Middleware $middleware): void {
+        //
+    })
+    ->withExceptions(function (Exceptions $exceptions): void {
+        //
+    })->create();

backend/bootstrap/cache/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

backend/bootstrap/providers.php

@@ -0,0 +1,7 @@
+<?php
+
+return [
+    App\Providers\AppServiceProvider::class,
+    App\Providers\DataTableServiceProvider::class,
+    App\Providers\FileServiceProvider::class,
+];

backend/composer.json

@@ -0,0 +1,90 @@
+{
+    "$schema": "https://getcomposer.org/schema.json",
+    "name": "laravel/laravel",
+    "type": "project",
+    "description": "The skeleton application for the Laravel framework.",
+    "keywords": [
+        "laravel",
+        "framework"
+    ],
+    "license": "MIT",
+    "require": {
+        "php": "^8.3",
+        "laravel/framework": "^13.0",
+        "laravel/passport": "^13.0",
+        "laravel/tinker": "^3.0"
+    },
+    "require-dev": {
+        "fakerphp/faker": "^1.23",
+        "laravel/pail": "^1.2.5",
+        "laravel/pint": "^1.27",
+        "mockery/mockery": "^1.6",
+        "nunomaduro/collision": "^8.6",
+        "pestphp/pest": "^4.6",
+        "pestphp/pest-plugin-laravel": "^4.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "App\\": "app/",
+            "Database\\Factories\\": "database/factories/",
+            "Database\\Seeders\\": "database/seeders/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\": "tests/"
+        }
+    },
+    "scripts": {
+        "setup": [
+            "composer install",
+            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\"",
+            "@php artisan key:generate",
+            "@php artisan migrate --force",
+            "npm install --ignore-scripts",
+            "npm run build"
+        ],
+        "dev": [
+            "Composer\\Config::disableProcessTimeout",
+            "npx concurrently -c \"#93c5fd,#c4b5fd,#fb7185,#fdba74\" \"php artisan serve\" \"php artisan queue:listen --tries=1 --timeout=0\" \"php artisan pail --timeout=0\" \"npm run dev\" --names=server,queue,logs,vite --kill-others"
+        ],
+        "test": [
+            "@php artisan config:clear --ansi",
+            "@php artisan test"
+        ],
+        "post-autoload-dump": [
+            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
+            "@php artisan package:discover --ansi"
+        ],
+        "post-update-cmd": [
+            "@php artisan vendor:publish --tag=laravel-assets --ansi --force"
+        ],
+        "post-root-package-install": [
+            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
+        ],
+        "post-create-project-cmd": [
+            "@php artisan key:generate --ansi",
+            "@php -r \"file_exists('database/database.sqlite') || touch('database/database.sqlite');\"",
+            "@php artisan migrate --graceful --ansi"
+        ],
+        "pre-package-uninstall": [
+            "Illuminate\\Foundation\\ComposerScripts::prePackageUninstall"
+        ]
+    },
+    "extra": {
+        "laravel": {
+            "dont-discover": []
+        }
+    },
+    "config": {
+        "optimize-autoloader": true,
+        "preferred-install": "dist",
+        "sort-packages": true,
+        "allow-plugins": {
+            "pestphp/pest-plugin": true,
+            "php-http/discovery": true
+        }
+    },
+    "minimum-stability": "stable",
+    "prefer-stable": true
+}

backend/config/app.php

@@ -0,0 +1,126 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Name
+    |--------------------------------------------------------------------------
+    |
+    | This value is the name of your application, which will be used when the
+    | framework needs to place the application's name in a notification or
+    | other UI elements where an application name needs to be displayed.
+    |
+    */
+
+    'name' => env('APP_NAME', 'Laravel'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Environment
+    |--------------------------------------------------------------------------
+    |
+    | This value determines the "environment" your application is currently
+    | running in. This may determine how you prefer to configure various
+    | services the application utilizes. Set this in your ".env" file.
+    |
+    */
+
+    'env' => env('APP_ENV', 'production'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Debug Mode
+    |--------------------------------------------------------------------------
+    |
+    | When your application is in debug mode, detailed error messages with
+    | stack traces will be shown on every error that occurs within your
+    | application. If disabled, a simple generic error page is shown.
+    |
+    */
+
+    'debug' => (bool) env('APP_DEBUG', false),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application URL
+    |--------------------------------------------------------------------------
+    |
+    | This URL is used by the console to properly generate URLs when using
+    | the Artisan command line tool. You should set this to the root of
+    | the application so that it's available within Artisan commands.
+    |
+    */
+
+    'url' => env('APP_URL', 'http://localhost'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Timezone
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify the default timezone for your application, which
+    | will be used by the PHP date and date-time functions. The timezone
+    | is set to "UTC" by default as it is suitable for most use cases.
+    |
+    */
+
+    'timezone' => 'UTC',
+
+    /*
+    |--------------------------------------------------------------------------
+    | Application Locale Configuration
+    |--------------------------------------------------------------------------
+    |
+    | The application locale determines the default locale that will be used
+    | by Laravel's translation / localization methods. This option can be
+    | set to any locale for which you plan to have translation strings.
+    |
+    */
+
+    'locale' => env('APP_LOCALE', 'en'),
+
+    'fallback_locale' => env('APP_FALLBACK_LOCALE', 'en'),
+
+    'faker_locale' => env('APP_FAKER_LOCALE', 'en_US'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Encryption Key
+    |--------------------------------------------------------------------------
+    |
+    | This key is utilized by Laravel's encryption services and should be set
+    | to a random, 32 character string to ensure that all encrypted values
+    | are secure. You should do this prior to deploying the application.
+    |
+    */
+
+    'cipher' => 'AES-256-CBC',
+
+    'key' => env('APP_KEY'),
+
+    'previous_keys' => [
+        ...array_filter(
+            explode(',', (string) env('APP_PREVIOUS_KEYS', ''))
+        ),
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Maintenance Mode Driver
+    |--------------------------------------------------------------------------
+    |
+    | These configuration options determine the driver used to determine and
+    | manage Laravel's "maintenance mode" status. The "cache" driver will
+    | allow maintenance mode to be controlled across multiple machines.
+    |
+    | Supported drivers: "file", "cache"
+    |
+    */
+
+    'maintenance' => [
+        'driver' => env('APP_MAINTENANCE_DRIVER', 'file'),
+        'store' => env('APP_MAINTENANCE_STORE', 'database'),
+    ],
+
+];

backend/config/auth.php

@@ -0,0 +1,121 @@
+<?php
+
+use App\Models\User;
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Authentication Defaults
+    |--------------------------------------------------------------------------
+    |
+    | This option defines the default authentication "guard" and password
+    | reset "broker" for your application. You may change these values
+    | as required, but they're a perfect start for most applications.
+    |
+    */
+
+    'defaults' => [
+        'guard' => env('AUTH_GUARD', 'web'),
+        'passwords' => env('AUTH_PASSWORD_BROKER', 'users'),
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Authentication Guards
+    |--------------------------------------------------------------------------
+    |
+    | Next, you may define every authentication guard for your application.
+    | Of course, a great default configuration has been defined for you
+    | which utilizes session storage plus the Eloquent user provider.
+    |
+    | All authentication guards have a user provider, which defines how the
+    | users are actually retrieved out of your database or other storage
+    | system used by the application. Typically, Eloquent is utilized.
+    |
+    | Supported: "session"
+    |
+    */
+
+    'guards' => [
+        'web' => [
+            'driver' => 'session',
+            'provider' => 'users',
+        ],
+        'api' => [
+            'driver' => 'passport',
+            'provider' => 'users',
+        ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | User Providers
+    |--------------------------------------------------------------------------
+    |
+    | All authentication guards have a user provider, which defines how the
+    | users are actually retrieved out of your database or other storage
+    | system used by the application. Typically, Eloquent is utilized.
+    |
+    | If you have multiple user tables or models you may configure multiple
+    | providers to represent the model / table. These providers may then
+    | be assigned to any extra authentication guards you have defined.
+    |
+    | Supported: "database", "eloquent"
+    |
+    */
+
+    'providers' => [
+        'users' => [
+            'driver' => 'eloquent',
+            'model' => env('AUTH_MODEL', User::class),
+        ],
+
+        // 'users' => [
+        //     'driver' => 'database',
+        //     'table' => 'users',
+        // ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Resetting Passwords
+    |--------------------------------------------------------------------------
+    |
+    | These configuration options specify the behavior of Laravel's password
+    | reset functionality, including the table utilized for token storage
+    | and the user provider that is invoked to actually retrieve users.
+    |
+    | The expiry time is the number of minutes that each reset token will be
+    | considered valid. This security feature keeps tokens short-lived so
+    | they have less time to be guessed. You may change this as needed.
+    |
+    | The throttle setting is the number of seconds a user must wait before
+    | generating more password reset tokens. This prevents the user from
+    | quickly generating a very large amount of password reset tokens.
+    |
+    */
+
+    'passwords' => [
+        'users' => [
+            'provider' => 'users',
+            'table' => env('AUTH_PASSWORD_RESET_TOKEN_TABLE', 'password_reset_tokens'),
+            'expire' => 60,
+            'throttle' => 60,
+        ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Password Confirmation Timeout
+    |--------------------------------------------------------------------------
+    |
+    | Here you may define the number of seconds before a password confirmation
+    | window expires and users are asked to re-enter their password via the
+    | confirmation screen. By default, the timeout lasts for three hours.
+    |
+    */
+
+    'password_timeout' => env('AUTH_PASSWORD_TIMEOUT', 10800),
+
+];

backend/config/cache.php

@@ -0,0 +1,130 @@
+<?php
+
+use Illuminate\Support\Str;
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Cache Store
+    |--------------------------------------------------------------------------
+    |
+    | This option controls the default cache store that will be used by the
+    | framework. This connection is utilized if another isn't explicitly
+    | specified when running a cache operation inside the application.
+    |
+    */
+
+    'default' => env('CACHE_STORE', 'database'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Cache Stores
+    |--------------------------------------------------------------------------
+    |
+    | Here you may define all of the cache "stores" for your application as
+    | well as their drivers. You may even define multiple stores for the
+    | same cache driver to group types of items stored in your caches.
+    |
+    | Supported drivers: "array", "database", "file", "memcached",
+    |                    "redis", "dynamodb", "octane",
+    |                    "failover", "null"
+    |
+    */
+
+    'stores' => [
+
+        'array' => [
+            'driver' => 'array',
+            'serialize' => false,
+        ],
+
+        'database' => [
+            'driver' => 'database',
+            'connection' => env('DB_CACHE_CONNECTION'),
+            'table' => env('DB_CACHE_TABLE', 'cache'),
+            'lock_connection' => env('DB_CACHE_LOCK_CONNECTION'),
+            'lock_table' => env('DB_CACHE_LOCK_TABLE'),
+        ],
+
+        'file' => [
+            'driver' => 'file',
+            'path' => storage_path('framework/cache/data'),
+            'lock_path' => storage_path('framework/cache/data'),
+        ],
+
+        'memcached' => [
+            'driver' => 'memcached',
+            'persistent_id' => env('MEMCACHED_PERSISTENT_ID'),
+            'sasl' => [
+                env('MEMCACHED_USERNAME'),
+                env('MEMCACHED_PASSWORD'),
+            ],
+            'options' => [
+                // Memcached::OPT_CONNECT_TIMEOUT => 2000,
+            ],
+            'servers' => [
+                [
+                    'host' => env('MEMCACHED_HOST', '127.0.0.1'),
+                    'port' => env('MEMCACHED_PORT', 11211),
+                    'weight' => 100,
+                ],
+            ],
+        ],
+
+        'redis' => [
+            'driver' => 'redis',
+            'connection' => env('REDIS_CACHE_CONNECTION', 'cache'),
+            'lock_connection' => env('REDIS_CACHE_LOCK_CONNECTION', 'default'),
+        ],
+
+        'dynamodb' => [
+            'driver' => 'dynamodb',
+            'key' => env('AWS_ACCESS_KEY_ID'),
+            'secret' => env('AWS_SECRET_ACCESS_KEY'),
+            'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
+            'table' => env('DYNAMODB_CACHE_TABLE', 'cache'),
+            'endpoint' => env('DYNAMODB_ENDPOINT'),
+        ],
+
+        'octane' => [
+            'driver' => 'octane',
+        ],
+
+        'failover' => [
+            'driver' => 'failover',
+            'stores' => [
+                'database',
+                'array',
+            ],
+        ],
+
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Cache Key Prefix
+    |--------------------------------------------------------------------------
+    |
+    | When utilizing the APC, database, memcached, Redis, and DynamoDB cache
+    | stores, there might be other applications using the same cache. For
+    | that reason, you may prefix every cache key to avoid collisions.
+    |
+    */
+
+    'prefix' => env('CACHE_PREFIX', Str::slug((string) env('APP_NAME', 'laravel')).'-cache-'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Serializable Classes
+    |--------------------------------------------------------------------------
+    |
+    | This value determines the classes that can be unserialized from cache
+    | storage. By default, no PHP classes will be unserialized from your
+    | cache to prevent gadget chain attacks if your APP_KEY is leaked.
+    |
+    */
+
+    'serializable_classes' => false,
+
+];

backend/config/database.php

@@ -0,0 +1,184 @@
+<?php
+
+use Illuminate\Support\Str;
+use Pdo\Mysql;
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Database Connection Name
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify which of the database connections below you wish
+    | to use as your default connection for database operations. This is
+    | the connection which will be utilized unless another connection
+    | is explicitly specified when you execute a query / statement.
+    |
+    */
+
+    'default' => env('DB_CONNECTION', 'sqlite'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Database Connections
+    |--------------------------------------------------------------------------
+    |
+    | Below are all of the database connections defined for your application.
+    | An example configuration is provided for each database system which
+    | is supported by Laravel. You're free to add / remove connections.
+    |
+    */
+
+    'connections' => [
+
+        'sqlite' => [
+            'driver' => 'sqlite',
+            'url' => env('DB_URL'),
+            'database' => env('DB_DATABASE', database_path('database.sqlite')),
+            'prefix' => '',
+            'foreign_key_constraints' => env('DB_FOREIGN_KEYS', true),
+            'busy_timeout' => null,
+            'journal_mode' => null,
+            'synchronous' => null,
+            'transaction_mode' => 'DEFERRED',
+        ],
+
+        'mysql' => [
+            'driver' => 'mysql',
+            'url' => env('DB_URL'),
+            'host' => env('DB_HOST', '127.0.0.1'),
+            'port' => env('DB_PORT', '3306'),
+            'database' => env('DB_DATABASE', 'laravel'),
+            'username' => env('DB_USERNAME', 'root'),
+            'password' => env('DB_PASSWORD', ''),
+            'unix_socket' => env('DB_SOCKET', ''),
+            'charset' => env('DB_CHARSET', 'utf8mb4'),
+            'collation' => env('DB_COLLATION', 'utf8mb4_unicode_ci'),
+            'prefix' => '',
+            'prefix_indexes' => true,
+            'strict' => true,
+            'engine' => null,
+            'options' => extension_loaded('pdo_mysql') ? array_filter([
+                (PHP_VERSION_ID >= 80500 ? Mysql::ATTR_SSL_CA : PDO::MYSQL_ATTR_SSL_CA) => env('MYSQL_ATTR_SSL_CA'),
+            ]) : [],
+        ],
+
+        'mariadb' => [
+            'driver' => 'mariadb',
+            'url' => env('DB_URL'),
+            'host' => env('DB_HOST', '127.0.0.1'),
+            'port' => env('DB_PORT', '3306'),
+            'database' => env('DB_DATABASE', 'laravel'),
+            'username' => env('DB_USERNAME', 'root'),
+            'password' => env('DB_PASSWORD', ''),
+            'unix_socket' => env('DB_SOCKET', ''),
+            'charset' => env('DB_CHARSET', 'utf8mb4'),
+            'collation' => env('DB_COLLATION', 'utf8mb4_unicode_ci'),
+            'prefix' => '',
+            'prefix_indexes' => true,
+            'strict' => true,
+            'engine' => null,
+            'options' => extension_loaded('pdo_mysql') ? array_filter([
+                (PHP_VERSION_ID >= 80500 ? Mysql::ATTR_SSL_CA : PDO::MYSQL_ATTR_SSL_CA) => env('MYSQL_ATTR_SSL_CA'),
+            ]) : [],
+        ],
+
+        'pgsql' => [
+            'driver' => 'pgsql',
+            'url' => env('DB_URL'),
+            'host' => env('DB_HOST', '127.0.0.1'),
+            'port' => env('DB_PORT', '5432'),
+            'database' => env('DB_DATABASE', 'laravel'),
+            'username' => env('DB_USERNAME', 'root'),
+            'password' => env('DB_PASSWORD', ''),
+            'charset' => env('DB_CHARSET', 'utf8'),
+            'prefix' => '',
+            'prefix_indexes' => true,
+            'search_path' => 'public',
+            'sslmode' => env('DB_SSLMODE', 'prefer'),
+        ],
+
+        'sqlsrv' => [
+            'driver' => 'sqlsrv',
+            'url' => env('DB_URL'),
+            'host' => env('DB_HOST', 'localhost'),
+            'port' => env('DB_PORT', '1433'),
+            'database' => env('DB_DATABASE', 'laravel'),
+            'username' => env('DB_USERNAME', 'root'),
+            'password' => env('DB_PASSWORD', ''),
+            'charset' => env('DB_CHARSET', 'utf8'),
+            'prefix' => '',
+            'prefix_indexes' => true,
+            // 'encrypt' => env('DB_ENCRYPT', 'yes'),
+            // 'trust_server_certificate' => env('DB_TRUST_SERVER_CERTIFICATE', 'false'),
+        ],
+
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Migration Repository Table
+    |--------------------------------------------------------------------------
+    |
+    | This table keeps track of all the migrations that have already run for
+    | your application. Using this information, we can determine which of
+    | the migrations on disk haven't actually been run on the database.
+    |
+    */
+
+    'migrations' => [
+        'table' => 'migrations',
+        'update_date_on_publish' => true,
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Redis Databases
+    |--------------------------------------------------------------------------
+    |
+    | Redis is an open source, fast, and advanced key-value store that also
+    | provides a richer body of commands than a typical key-value system
+    | such as Memcached. You may define your connection settings here.
+    |
+    */
+
+    'redis' => [
+
+        'client' => env('REDIS_CLIENT', 'phpredis'),
+
+        'options' => [
+            'cluster' => env('REDIS_CLUSTER', 'redis'),
+            'prefix' => env('REDIS_PREFIX', Str::slug((string) env('APP_NAME', 'laravel')).'-database-'),
+            'persistent' => env('REDIS_PERSISTENT', false),
+        ],
+
+        'default' => [
+            'url' => env('REDIS_URL'),
+            'host' => env('REDIS_HOST', '127.0.0.1'),
+            'username' => env('REDIS_USERNAME'),
+            'password' => env('REDIS_PASSWORD'),
+            'port' => env('REDIS_PORT', '6379'),
+            'database' => env('REDIS_DB', '0'),
+            'max_retries' => env('REDIS_MAX_RETRIES', 3),
+            'backoff_algorithm' => env('REDIS_BACKOFF_ALGORITHM', 'decorrelated_jitter'),
+            'backoff_base' => env('REDIS_BACKOFF_BASE', 100),
+            'backoff_cap' => env('REDIS_BACKOFF_CAP', 1000),
+        ],
+
+        'cache' => [
+            'url' => env('REDIS_URL'),
+            'host' => env('REDIS_HOST', '127.0.0.1'),
+            'username' => env('REDIS_USERNAME'),
+            'password' => env('REDIS_PASSWORD'),
+            'port' => env('REDIS_PORT', '6379'),
+            'database' => env('REDIS_CACHE_DB', '1'),
+            'max_retries' => env('REDIS_MAX_RETRIES', 3),
+            'backoff_algorithm' => env('REDIS_BACKOFF_ALGORITHM', 'decorrelated_jitter'),
+            'backoff_base' => env('REDIS_BACKOFF_BASE', 100),
+            'backoff_cap' => env('REDIS_BACKOFF_CAP', 1000),
+        ],
+
+    ],
+
+];

backend/config/fib.php

@@ -0,0 +1,25 @@
+<?php
+
+return [
+    'authorization' => [
+        'url' => env('FIB_AUTHORIZATION_URL'),
+        'client_id' => env('FIB_CLIENT_ID'),
+        'client_secret' => env('FIB_CLIENT_SECRET'),
+    ],
+
+    'createPayment' => [
+        'url' => env('FIB_CREATE_PAYMENT_URL'),
+    ],
+
+    'checkPaymentStatus' => [
+        'url' => env('FIB_CHECK_PAYMENT_STATUS_URL'),
+    ],
+
+    'cancelPayment' => [
+        'url' => env('FIB_CANCEL_PAYMENT_URL'),
+    ],
+
+    'refund' => [
+        'url' => env('FIB_REFUND_URL'),
+    ],
+];

backend/config/filesystems.php

@@ -0,0 +1,80 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Filesystem Disk
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify the default filesystem disk that should be used
+    | by the framework. The "local" disk, as well as a variety of cloud
+    | based disks are available to your application for file storage.
+    |
+    */
+
+    'default' => env('FILESYSTEM_DISK', 'local'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Filesystem Disks
+    |--------------------------------------------------------------------------
+    |
+    | Below you may configure as many filesystem disks as necessary, and you
+    | may even configure multiple disks for the same driver. Examples for
+    | most supported storage drivers are configured here for reference.
+    |
+    | Supported drivers: "local", "ftp", "sftp", "s3"
+    |
+    */
+
+    'disks' => [
+
+        'local' => [
+            'driver' => 'local',
+            'root' => storage_path('app/private'),
+            'serve' => true,
+            'throw' => false,
+            'report' => false,
+        ],
+
+        'public' => [
+            'driver' => 'local',
+            'root' => storage_path('app/public'),
+            'url' => rtrim(env('APP_URL', 'http://localhost'), '/').'/storage',
+            'visibility' => 'public',
+            'throw' => false,
+            'report' => false,
+        ],
+
+        's3' => [
+            'driver' => 's3',
+            'key' => env('AWS_ACCESS_KEY_ID'),
+            'secret' => env('AWS_SECRET_ACCESS_KEY'),
+            'region' => env('AWS_DEFAULT_REGION'),
+            'bucket' => env('AWS_BUCKET'),
+            'url' => env('AWS_URL'),
+            'endpoint' => env('AWS_ENDPOINT'),
+            'use_path_style_endpoint' => env('AWS_USE_PATH_STYLE_ENDPOINT', false),
+            'throw' => false,
+            'report' => false,
+        ],
+
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Symbolic Links
+    |--------------------------------------------------------------------------
+    |
+    | Here you may configure the symbolic links that will be created when the
+    | `storage:link` Artisan command is executed. The array keys should be
+    | the locations of the links and the values should be their targets.
+    |
+    */
+
+    'links' => [
+        public_path('storage') => storage_path('app/public'),
+    ],
+
+];

backend/config/logging.php

@@ -0,0 +1,132 @@
+<?php
+
+use Monolog\Handler\NullHandler;
+use Monolog\Handler\StreamHandler;
+use Monolog\Handler\SyslogUdpHandler;
+use Monolog\Processor\PsrLogMessageProcessor;
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Log Channel
+    |--------------------------------------------------------------------------
+    |
+    | This option defines the default log channel that is utilized to write
+    | messages to your logs. The value provided here should match one of
+    | the channels present in the list of "channels" configured below.
+    |
+    */
+
+    'default' => env('LOG_CHANNEL', 'stack'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Deprecations Log Channel
+    |--------------------------------------------------------------------------
+    |
+    | This option controls the log channel that should be used to log warnings
+    | regarding deprecated PHP and library features. This allows you to get
+    | your application ready for upcoming major versions of dependencies.
+    |
+    */
+
+    'deprecations' => [
+        'channel' => env('LOG_DEPRECATIONS_CHANNEL', 'null'),
+        'trace' => env('LOG_DEPRECATIONS_TRACE', false),
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Log Channels
+    |--------------------------------------------------------------------------
+    |
+    | Here you may configure the log channels for your application. Laravel
+    | utilizes the Monolog PHP logging library, which includes a variety
+    | of powerful log handlers and formatters that you're free to use.
+    |
+    | Available drivers: "single", "daily", "slack", "syslog",
+    |                    "errorlog", "monolog", "custom", "stack"
+    |
+    */
+
+    'channels' => [
+
+        'stack' => [
+            'driver' => 'stack',
+            'channels' => explode(',', (string) env('LOG_STACK', 'single')),
+            'ignore_exceptions' => false,
+        ],
+
+        'single' => [
+            'driver' => 'single',
+            'path' => storage_path('logs/laravel.log'),
+            'level' => env('LOG_LEVEL', 'debug'),
+            'replace_placeholders' => true,
+        ],
+
+        'daily' => [
+            'driver' => 'daily',
+            'path' => storage_path('logs/laravel.log'),
+            'level' => env('LOG_LEVEL', 'debug'),
+            'days' => env('LOG_DAILY_DAYS', 14),
+            'replace_placeholders' => true,
+        ],
+
+        'slack' => [
+            'driver' => 'slack',
+            'url' => env('LOG_SLACK_WEBHOOK_URL'),
+            'username' => env('LOG_SLACK_USERNAME', env('APP_NAME', 'Laravel')),
+            'emoji' => env('LOG_SLACK_EMOJI', ':boom:'),
+            'level' => env('LOG_LEVEL', 'critical'),
+            'replace_placeholders' => true,
+        ],
+
+        'papertrail' => [
+            'driver' => 'monolog',
+            'level' => env('LOG_LEVEL', 'debug'),
+            'handler' => env('LOG_PAPERTRAIL_HANDLER', SyslogUdpHandler::class),
+            'handler_with' => [
+                'host' => env('PAPERTRAIL_URL'),
+                'port' => env('PAPERTRAIL_PORT'),
+                'connectionString' => 'tls://'.env('PAPERTRAIL_URL').':'.env('PAPERTRAIL_PORT'),
+            ],
+            'processors' => [PsrLogMessageProcessor::class],
+        ],
+
+        'stderr' => [
+            'driver' => 'monolog',
+            'level' => env('LOG_LEVEL', 'debug'),
+            'handler' => StreamHandler::class,
+            'handler_with' => [
+                'stream' => 'php://stderr',
+            ],
+            'formatter' => env('LOG_STDERR_FORMATTER'),
+            'processors' => [PsrLogMessageProcessor::class],
+        ],
+
+        'syslog' => [
+            'driver' => 'syslog',
+            'level' => env('LOG_LEVEL', 'debug'),
+            'facility' => env('LOG_SYSLOG_FACILITY', LOG_USER),
+            'replace_placeholders' => true,
+        ],
+
+        'errorlog' => [
+            'driver' => 'errorlog',
+            'level' => env('LOG_LEVEL', 'debug'),
+            'replace_placeholders' => true,
+        ],
+
+        'null' => [
+            'driver' => 'monolog',
+            'handler' => NullHandler::class,
+        ],
+
+        'emergency' => [
+            'path' => storage_path('logs/laravel.log'),
+        ],
+
+    ],
+
+];

backend/config/mail.php

@@ -0,0 +1,118 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Mailer
+    |--------------------------------------------------------------------------
+    |
+    | This option controls the default mailer that is used to send all email
+    | messages unless another mailer is explicitly specified when sending
+    | the message. All additional mailers can be configured within the
+    | "mailers" array. Examples of each type of mailer are provided.
+    |
+    */
+
+    'default' => env('MAIL_MAILER', 'log'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Mailer Configurations
+    |--------------------------------------------------------------------------
+    |
+    | Here you may configure all of the mailers used by your application plus
+    | their respective settings. Several examples have been configured for
+    | you and you are free to add your own as your application requires.
+    |
+    | Laravel supports a variety of mail "transport" drivers that can be used
+    | when delivering an email. You may specify which one you're using for
+    | your mailers below. You may also add additional mailers if needed.
+    |
+    | Supported: "smtp", "sendmail", "mailgun", "ses", "ses-v2",
+    |            "postmark", "resend", "log", "array",
+    |            "failover", "roundrobin"
+    |
+    */
+
+    'mailers' => [
+
+        'smtp' => [
+            'transport' => 'smtp',
+            'scheme' => env('MAIL_SCHEME'),
+            'url' => env('MAIL_URL'),
+            'host' => env('MAIL_HOST', '127.0.0.1'),
+            'port' => env('MAIL_PORT', 2525),
+            'username' => env('MAIL_USERNAME'),
+            'password' => env('MAIL_PASSWORD'),
+            'timeout' => null,
+            'local_domain' => env('MAIL_EHLO_DOMAIN', parse_url((string) env('APP_URL', 'http://localhost'), PHP_URL_HOST)),
+        ],
+
+        'ses' => [
+            'transport' => 'ses',
+        ],
+
+        'postmark' => [
+            'transport' => 'postmark',
+            // 'message_stream_id' => env('POSTMARK_MESSAGE_STREAM_ID'),
+            // 'client' => [
+            //     'timeout' => 5,
+            // ],
+        ],
+
+        'resend' => [
+            'transport' => 'resend',
+        ],
+
+        'sendmail' => [
+            'transport' => 'sendmail',
+            'path' => env('MAIL_SENDMAIL_PATH', '/usr/sbin/sendmail -bs -i'),
+        ],
+
+        'log' => [
+            'transport' => 'log',
+            'channel' => env('MAIL_LOG_CHANNEL'),
+        ],
+
+        'array' => [
+            'transport' => 'array',
+        ],
+
+        'failover' => [
+            'transport' => 'failover',
+            'mailers' => [
+                'smtp',
+                'log',
+            ],
+            'retry_after' => 60,
+        ],
+
+        'roundrobin' => [
+            'transport' => 'roundrobin',
+            'mailers' => [
+                'ses',
+                'postmark',
+            ],
+            'retry_after' => 60,
+        ],
+
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Global "From" Address
+    |--------------------------------------------------------------------------
+    |
+    | You may wish for all emails sent by your application to be sent from
+    | the same address. Here you may specify a name and address that is
+    | used globally for all emails that are sent by your application.
+    |
+    */
+
+    'from' => [
+        'address' => env('MAIL_FROM_ADDRESS', 'hello@example.com'),
+        'name' => env('MAIL_FROM_NAME', env('APP_NAME', 'Laravel')),
+    ],
+
+];

backend/config/passport.php

@@ -0,0 +1,48 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Passport Guard
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify which authentication guard Passport will use when
+    | authenticating users. This value should correspond with one of your
+    | guards that is already present in your "auth" configuration file.
+    |
+    */
+
+    'guard' => 'web',
+
+    'middleware' => [],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Encryption Keys
+    |--------------------------------------------------------------------------
+    |
+    | Passport uses encryption keys while generating secure access tokens for
+    | your application. By default, the keys are stored as local files but
+    | can be set via environment variables when that is more convenient.
+    |
+    */
+
+    'private_key' => env('PASSPORT_PRIVATE_KEY'),
+
+    'public_key' => env('PASSPORT_PUBLIC_KEY'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Passport Database Connection
+    |--------------------------------------------------------------------------
+    |
+    | By default, Passport's models will utilize your application's default
+    | database connection. If you wish to use a different connection you
+    | may specify the configured name of the database connection here.
+    |
+    */
+
+    'connection' => env('PASSPORT_CONNECTION'),
+
+];

backend/config/queue.php

@@ -0,0 +1,129 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Queue Connection Name
+    |--------------------------------------------------------------------------
+    |
+    | Laravel's queue supports a variety of backends via a single, unified
+    | API, giving you convenient access to each backend using identical
+    | syntax for each. The default queue connection is defined below.
+    |
+    */
+
+    'default' => env('QUEUE_CONNECTION', 'database'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Queue Connections
+    |--------------------------------------------------------------------------
+    |
+    | Here you may configure the connection options for every queue backend
+    | used by your application. An example configuration is provided for
+    | each backend supported by Laravel. You're also free to add more.
+    |
+    | Drivers: "sync", "database", "beanstalkd", "sqs", "redis",
+    |          "deferred", "background", "failover", "null"
+    |
+    */
+
+    'connections' => [
+
+        'sync' => [
+            'driver' => 'sync',
+        ],
+
+        'database' => [
+            'driver' => 'database',
+            'connection' => env('DB_QUEUE_CONNECTION'),
+            'table' => env('DB_QUEUE_TABLE', 'jobs'),
+            'queue' => env('DB_QUEUE', 'default'),
+            'retry_after' => (int) env('DB_QUEUE_RETRY_AFTER', 90),
+            'after_commit' => false,
+        ],
+
+        'beanstalkd' => [
+            'driver' => 'beanstalkd',
+            'host' => env('BEANSTALKD_QUEUE_HOST', 'localhost'),
+            'queue' => env('BEANSTALKD_QUEUE', 'default'),
+            'retry_after' => (int) env('BEANSTALKD_QUEUE_RETRY_AFTER', 90),
+            'block_for' => 0,
+            'after_commit' => false,
+        ],
+
+        'sqs' => [
+            'driver' => 'sqs',
+            'key' => env('AWS_ACCESS_KEY_ID'),
+            'secret' => env('AWS_SECRET_ACCESS_KEY'),
+            'prefix' => env('SQS_PREFIX', 'https://sqs.us-east-1.amazonaws.com/your-account-id'),
+            'queue' => env('SQS_QUEUE', 'default'),
+            'suffix' => env('SQS_SUFFIX'),
+            'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
+            'after_commit' => false,
+        ],
+
+        'redis' => [
+            'driver' => 'redis',
+            'connection' => env('REDIS_QUEUE_CONNECTION', 'default'),
+            'queue' => env('REDIS_QUEUE', 'default'),
+            'retry_after' => (int) env('REDIS_QUEUE_RETRY_AFTER', 90),
+            'block_for' => null,
+            'after_commit' => false,
+        ],
+
+        'deferred' => [
+            'driver' => 'deferred',
+        ],
+
+        'background' => [
+            'driver' => 'background',
+        ],
+
+        'failover' => [
+            'driver' => 'failover',
+            'connections' => [
+                'database',
+                'deferred',
+            ],
+        ],
+
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Job Batching
+    |--------------------------------------------------------------------------
+    |
+    | The following options configure the database and table that store job
+    | batching information. These options can be updated to any database
+    | connection and table which has been defined by your application.
+    |
+    */
+
+    'batching' => [
+        'database' => env('DB_CONNECTION', 'sqlite'),
+        'table' => 'job_batches',
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Failed Queue Jobs
+    |--------------------------------------------------------------------------
+    |
+    | These options configure the behavior of failed queue job logging so you
+    | can control how and where failed jobs are stored. Laravel ships with
+    | support for storing failed jobs in a simple file or in a database.
+    |
+    | Supported drivers: "database-uuids", "dynamodb", "file", "null"
+    |
+    */
+
+    'failed' => [
+        'driver' => env('QUEUE_FAILED_DRIVER', 'database-uuids'),
+        'database' => env('DB_CONNECTION', 'sqlite'),
+        'table' => 'failed_jobs',
+    ],
+
+];

backend/config/services.php

@@ -0,0 +1,38 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Third Party Services
+    |--------------------------------------------------------------------------
+    |
+    | This file is for storing the credentials for third party services such
+    | as Mailgun, Postmark, AWS and more. This file provides the de facto
+    | location for this type of information, allowing packages to have
+    | a conventional file to locate the various service credentials.
+    |
+    */
+
+    'postmark' => [
+        'key' => env('POSTMARK_API_KEY'),
+    ],
+
+    'resend' => [
+        'key' => env('RESEND_API_KEY'),
+    ],
+
+    'ses' => [
+        'key' => env('AWS_ACCESS_KEY_ID'),
+        'secret' => env('AWS_SECRET_ACCESS_KEY'),
+        'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
+    ],
+
+    'slack' => [
+        'notifications' => [
+            'bot_user_oauth_token' => env('SLACK_BOT_USER_OAUTH_TOKEN'),
+            'channel' => env('SLACK_BOT_USER_DEFAULT_CHANNEL'),
+        ],
+    ],
+
+];

backend/config/session.php

@@ -0,0 +1,233 @@
+<?php
+
+use Illuminate\Support\Str;
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Default Session Driver
+    |--------------------------------------------------------------------------
+    |
+    | This option determines the default session driver that is utilized for
+    | incoming requests. Laravel supports a variety of storage options to
+    | persist session data. Database storage is a great default choice.
+    |
+    | Supported: "file", "cookie", "database", "memcached",
+    |            "redis", "dynamodb", "array"
+    |
+    */
+
+    'driver' => env('SESSION_DRIVER', 'database'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Lifetime
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify the number of minutes that you wish the session
+    | to be allowed to remain idle before it expires. If you want them
+    | to expire immediately when the browser is closed then you may
+    | indicate that via the expire_on_close configuration option.
+    |
+    */
+
+    'lifetime' => (int) env('SESSION_LIFETIME', 120),
+
+    'expire_on_close' => env('SESSION_EXPIRE_ON_CLOSE', false),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Encryption
+    |--------------------------------------------------------------------------
+    |
+    | This option allows you to easily specify that all of your session data
+    | should be encrypted before it's stored. All encryption is performed
+    | automatically by Laravel and you may use the session like normal.
+    |
+    */
+
+    'encrypt' => env('SESSION_ENCRYPT', false),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session File Location
+    |--------------------------------------------------------------------------
+    |
+    | When utilizing the "file" session driver, the session files are placed
+    | on disk. The default storage location is defined here; however, you
+    | are free to provide another location where they should be stored.
+    |
+    */
+
+    'files' => storage_path('framework/sessions'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Database Connection
+    |--------------------------------------------------------------------------
+    |
+    | When using the "database" or "redis" session drivers, you may specify a
+    | connection that should be used to manage these sessions. This should
+    | correspond to a connection in your database configuration options.
+    |
+    */
+
+    'connection' => env('SESSION_CONNECTION'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Database Table
+    |--------------------------------------------------------------------------
+    |
+    | When using the "database" session driver, you may specify the table to
+    | be used to store sessions. Of course, a sensible default is defined
+    | for you; however, you're welcome to change this to another table.
+    |
+    */
+
+    'table' => env('SESSION_TABLE', 'sessions'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Cache Store
+    |--------------------------------------------------------------------------
+    |
+    | When using one of the framework's cache driven session backends, you may
+    | define the cache store which should be used to store the session data
+    | between requests. This must match one of your defined cache stores.
+    |
+    | Affects: "dynamodb", "memcached", "redis"
+    |
+    */
+
+    'store' => env('SESSION_STORE'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Sweeping Lottery
+    |--------------------------------------------------------------------------
+    |
+    | Some session drivers must manually sweep their storage location to get
+    | rid of old sessions from storage. Here are the chances that it will
+    | happen on a given request. By default, the odds are 2 out of 100.
+    |
+    */
+
+    'lottery' => [2, 100],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Cookie Name
+    |--------------------------------------------------------------------------
+    |
+    | Here you may change the name of the session cookie that is created by
+    | the framework. Typically, you should not need to change this value
+    | since doing so does not grant a meaningful security improvement.
+    |
+    */
+
+    'cookie' => env(
+        'SESSION_COOKIE',
+        Str::slug((string) env('APP_NAME', 'laravel')).'-session'
+    ),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Cookie Path
+    |--------------------------------------------------------------------------
+    |
+    | The session cookie path determines the path for which the cookie will
+    | be regarded as available. Typically, this will be the root path of
+    | your application, but you're free to change this when necessary.
+    |
+    */
+
+    'path' => env('SESSION_PATH', '/'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Cookie Domain
+    |--------------------------------------------------------------------------
+    |
+    | This value determines the domain and subdomains the session cookie is
+    | available to. By default, the cookie will be available to the root
+    | domain without subdomains. Typically, this shouldn't be changed.
+    |
+    */
+
+    'domain' => env('SESSION_DOMAIN'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | HTTPS Only Cookies
+    |--------------------------------------------------------------------------
+    |
+    | By setting this option to true, session cookies will only be sent back
+    | to the server if the browser has a HTTPS connection. This will keep
+    | the cookie from being sent to you when it can't be done securely.
+    |
+    */
+
+    'secure' => env('SESSION_SECURE_COOKIE'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | HTTP Access Only
+    |--------------------------------------------------------------------------
+    |
+    | Setting this value to true will prevent JavaScript from accessing the
+    | value of the cookie and the cookie will only be accessible through
+    | the HTTP protocol. It's unlikely you should disable this option.
+    |
+    */
+
+    'http_only' => env('SESSION_HTTP_ONLY', true),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Same-Site Cookies
+    |--------------------------------------------------------------------------
+    |
+    | This option determines how your cookies behave when cross-site requests
+    | take place, and can be used to mitigate CSRF attacks. By default, we
+    | will set this value to "lax" to permit secure cross-site requests.
+    |
+    | See: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie#samesitesamesite-value
+    |
+    | Supported: "lax", "strict", "none", null
+    |
+    */
+
+    'same_site' => env('SESSION_SAME_SITE', 'lax'),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Partitioned Cookies
+    |--------------------------------------------------------------------------
+    |
+    | Setting this value to true will tie the cookie to the top-level site for
+    | a cross-site context. Partitioned cookies are accepted by the browser
+    | when flagged "secure" and the Same-Site attribute is set to "none".
+    |
+    */
+
+    'partitioned' => env('SESSION_PARTITIONED_COOKIE', false),
+
+    /*
+    |--------------------------------------------------------------------------
+    | Session Serialization
+    |--------------------------------------------------------------------------
+    |
+    | This value controls the serialization strategy for session data, which
+    | is JSON by default. Setting this to "php" allows the storage of PHP
+    | objects in the session but can make an application vulnerable to
+    | "gadget chain" serialization attacks if the APP_KEY is leaked.
+    |
+    | Supported: "json", "php"
+    |
+    */
+
+    'serialization' => 'json',
+
+];

backend/database/.gitignore

@@ -0,0 +1 @@
+*.sqlite*

backend/database/factories/UserFactory.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\User;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Str;
+
+/**
+ * @extends Factory<User>
+ */
+class UserFactory extends Factory
+{
+    /**
+     * The current password being used by the factory.
+     */
+    protected static ?string $password;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'name' => fake()->name(),
+            'email' => fake()->unique()->safeEmail(),
+            'email_verified_at' => now(),
+            'password' => static::$password ??= Hash::make('password'),
+            'remember_token' => Str::random(10),
+        ];
+    }
+
+    /**
+     * Indicate that the model's email address should be unverified.
+     */
+    public function unverified(): static
+    {
+        return $this->state(fn (array $attributes) => [
+            'email_verified_at' => null,
+        ]);
+    }
+}

backend/database/migrations/0001_01_01_000000_create_users_table.php

@@ -0,0 +1,49 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('users', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('email')->unique();
+            $table->timestamp('email_verified_at')->nullable();
+            $table->string('password');
+            $table->rememberToken();
+            $table->timestamps();
+        });
+
+        Schema::create('password_reset_tokens', function (Blueprint $table) {
+            $table->string('email')->primary();
+            $table->string('token');
+            $table->timestamp('created_at')->nullable();
+        });
+
+        Schema::create('sessions', function (Blueprint $table) {
+            $table->string('id')->primary();
+            $table->foreignId('user_id')->nullable()->index();
+            $table->string('ip_address', 45)->nullable();
+            $table->text('user_agent')->nullable();
+            $table->longText('payload');
+            $table->integer('last_activity')->index();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('users');
+        Schema::dropIfExists('password_reset_tokens');
+        Schema::dropIfExists('sessions');
+    }
+};

backend/database/migrations/0001_01_01_000001_create_cache_table.php

@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('cache', function (Blueprint $table) {
+            $table->string('key')->primary();
+            $table->mediumText('value');
+            $table->bigInteger('expiration')->index();
+        });
+
+        Schema::create('cache_locks', function (Blueprint $table) {
+            $table->string('key')->primary();
+            $table->string('owner');
+            $table->bigInteger('expiration')->index();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('cache');
+        Schema::dropIfExists('cache_locks');
+    }
+};

backend/database/migrations/0001_01_01_000002_create_jobs_table.php

@@ -0,0 +1,57 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('jobs', function (Blueprint $table) {
+            $table->id();
+            $table->string('queue')->index();
+            $table->longText('payload');
+            $table->unsignedSmallInteger('attempts');
+            $table->unsignedInteger('reserved_at')->nullable();
+            $table->unsignedInteger('available_at');
+            $table->unsignedInteger('created_at');
+        });
+
+        Schema::create('job_batches', function (Blueprint $table) {
+            $table->string('id')->primary();
+            $table->string('name');
+            $table->integer('total_jobs');
+            $table->integer('pending_jobs');
+            $table->integer('failed_jobs');
+            $table->longText('failed_job_ids');
+            $table->mediumText('options')->nullable();
+            $table->integer('cancelled_at')->nullable();
+            $table->integer('created_at');
+            $table->integer('finished_at')->nullable();
+        });
+
+        Schema::create('failed_jobs', function (Blueprint $table) {
+            $table->id();
+            $table->string('uuid')->unique();
+            $table->text('connection');
+            $table->text('queue');
+            $table->longText('payload');
+            $table->longText('exception');
+            $table->timestamp('failed_at')->useCurrent();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('jobs');
+        Schema::dropIfExists('job_batches');
+        Schema::dropIfExists('failed_jobs');
+    }
+};

backend/database/migrations/2026_04_27_122415_create_oauth_auth_codes_table.php

@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('oauth_auth_codes', function (Blueprint $table) {
+            $table->char('id', 80)->primary();
+            $table->foreignId('user_id')->index();
+            $table->foreignUuid('client_id');
+            $table->text('scopes')->nullable();
+            $table->boolean('revoked');
+            $table->dateTime('expires_at')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('oauth_auth_codes');
+    }
+
+    /**
+     * Get the migration connection name.
+     */
+    public function getConnection(): ?string
+    {
+        return $this->connection ?? config('passport.connection');
+    }
+};

backend/database/migrations/2026_04_27_122416_create_oauth_access_tokens_table.php

@@ -0,0 +1,41 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('oauth_access_tokens', function (Blueprint $table) {
+            $table->char('id', 80)->primary();
+            $table->foreignId('user_id')->nullable()->index();
+            $table->foreignUuid('client_id');
+            $table->string('name')->nullable();
+            $table->text('scopes')->nullable();
+            $table->boolean('revoked');
+            $table->timestamps();
+            $table->dateTime('expires_at')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('oauth_access_tokens');
+    }
+
+    /**
+     * Get the migration connection name.
+     */
+    public function getConnection(): ?string
+    {
+        return $this->connection ?? config('passport.connection');
+    }
+};

backend/database/migrations/2026_04_27_122417_create_oauth_refresh_tokens_table.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('oauth_refresh_tokens', function (Blueprint $table) {
+            $table->char('id', 80)->primary();
+            $table->char('access_token_id', 80)->index();
+            $table->boolean('revoked');
+            $table->dateTime('expires_at')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('oauth_refresh_tokens');
+    }
+
+    /**
+     * Get the migration connection name.
+     */
+    public function getConnection(): ?string
+    {
+        return $this->connection ?? config('passport.connection');
+    }
+};

backend/database/migrations/2026_04_27_122418_create_oauth_clients_table.php

@@ -0,0 +1,42 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('oauth_clients', function (Blueprint $table) {
+            $table->uuid('id')->primary();
+            $table->nullableMorphs('owner');
+            $table->string('name');
+            $table->string('secret')->nullable();
+            $table->string('provider')->nullable();
+            $table->text('redirect_uris');
+            $table->text('grant_types');
+            $table->boolean('revoked');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('oauth_clients');
+    }
+
+    /**
+     * Get the migration connection name.
+     */
+    public function getConnection(): ?string
+    {
+        return $this->connection ?? config('passport.connection');
+    }
+};

backend/database/migrations/2026_04_27_122419_create_oauth_device_codes_table.php

@@ -0,0 +1,42 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('oauth_device_codes', function (Blueprint $table) {
+            $table->char('id', 80)->primary();
+            $table->foreignId('user_id')->nullable()->index();
+            $table->foreignUuid('client_id')->index();
+            $table->char('user_code', 8)->unique();
+            $table->text('scopes');
+            $table->boolean('revoked');
+            $table->dateTime('user_approved_at')->nullable();
+            $table->dateTime('last_polled_at')->nullable();
+            $table->dateTime('expires_at')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('oauth_device_codes');
+    }
+
+    /**
+     * Get the migration connection name.
+     */
+    public function getConnection(): ?string
+    {
+        return $this->connection ?? config('passport.connection');
+    }
+};

backend/database/seeders/DatabaseSeeder.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\User;
+use Illuminate\Database\Console\Seeds\WithoutModelEvents;
+use Illuminate\Database\Seeder;
+
+class DatabaseSeeder extends Seeder
+{
+    use WithoutModelEvents;
+
+    /**
+     * Seed the application's database.
+     */
+    public function run(): void
+    {
+        // User::factory(10)->create();
+
+        User::factory()->create([
+            'name' => 'Test User',
+            'email' => 'test@example.com',
+        ]);
+    }
+}

backend/package.json

@@ -0,0 +1,16 @@
+{
+    "$schema": "https://www.schemastore.org/package.json",
+    "private": true,
+    "type": "module",
+    "scripts": {
+        "build": "vite build",
+        "dev": "vite"
+    },
+    "devDependencies": {
+        "@tailwindcss/vite": "^4.0.0",
+        "concurrently": "^9.0.1",
+        "laravel-vite-plugin": "^3.0.0",
+        "tailwindcss": "^4.0.0",
+        "vite": "^8.0.0"
+    }
+}

backend/phpunit.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+>
+    <testsuites>
+        <testsuite name="Unit">
+            <directory>tests/Unit</directory>
+        </testsuite>
+        <testsuite name="Feature">
+            <directory>tests/Feature</directory>
+        </testsuite>
+    </testsuites>
+    <source>
+        <include>
+            <directory>app</directory>
+        </include>
+    </source>
+    <php>
+        <env name="APP_ENV" value="testing"/>
+        <env name="APP_MAINTENANCE_DRIVER" value="file"/>
+        <env name="BCRYPT_ROUNDS" value="4"/>
+        <env name="BROADCAST_CONNECTION" value="null"/>
+        <env name="CACHE_STORE" value="array"/>
+        <env name="DB_CONNECTION" value="sqlite"/>
+        <env name="DB_DATABASE" value=":memory:"/>
+        <env name="DB_URL" value=""/>
+        <env name="MAIL_MAILER" value="array"/>
+        <env name="QUEUE_CONNECTION" value="sync"/>
+        <env name="SESSION_DRIVER" value="array"/>
+        <env name="PULSE_ENABLED" value="false"/>
+        <env name="TELESCOPE_ENABLED" value="false"/>
+        <env name="NIGHTWATCH_ENABLED" value="false"/>
+    </php>
+</phpunit>

backend/public/.htaccess

@@ -0,0 +1,25 @@
+<IfModule mod_rewrite.c>
+    <IfModule mod_negotiation.c>
+        Options -MultiViews -Indexes
+    </IfModule>
+
+    RewriteEngine On
+
+    # Handle Authorization Header
+    RewriteCond %{HTTP:Authorization} .
+    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+
+    # Handle X-XSRF-Token Header
+    RewriteCond %{HTTP:x-xsrf-token} .
+    RewriteRule .* - [E=HTTP_X_XSRF_TOKEN:%{HTTP:X-XSRF-Token}]
+
+    # Redirect Trailing Slashes If Not A Folder...
+    RewriteCond %{REQUEST_FILENAME} !-d
+    RewriteCond %{REQUEST_URI} (.+)/$
+    RewriteRule ^ %1 [L,R=301]
+
+    # Send Requests To Front Controller...
+    RewriteCond %{REQUEST_FILENAME} !-d
+    RewriteCond %{REQUEST_FILENAME} !-f
+    RewriteRule ^ index.php [L]
+</IfModule>

backend/public/index.php

@@ -0,0 +1,20 @@
+<?php
+
+use Illuminate\Foundation\Application;
+use Illuminate\Http\Request;
+
+define('LARAVEL_START', microtime(true));
+
+// Determine if the application is in maintenance mode...
+if (file_exists($maintenance = __DIR__.'/../storage/framework/maintenance.php')) {
+    require $maintenance;
+}
+
+// Register the Composer autoloader...
+require __DIR__.'/../vendor/autoload.php';
+
+// Bootstrap Laravel and handle the request...
+/** @var Application $app */
+$app = require_once __DIR__.'/../bootstrap/app.php';
+
+$app->handleRequest(Request::capture());

backend/public/robots.txt

@@ -0,0 +1,2 @@
+User-agent: *
+Disallow:

backend/resources/css/app.css

@@ -0,0 +1,11 @@
+@import 'tailwindcss';
+
+@source '../../vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php';
+@source '../../storage/framework/views/*.php';
+@source '../**/*.blade.php';
+@source '../**/*.js';
+
+@theme {
+    --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
+        'Segoe UI Symbol', 'Noto Color Emoji';
+}

backend/resources/js/app.js

@@ -0,0 +1 @@
+//

backend/resources/lang/ar/notifications.php

@@ -0,0 +1,45 @@
+<?php
+
+return [
+    'exception_message' => 'رسالة استثناء: :message',
+    'exception_trace' => 'تتبع الإستثناء: :trace',
+    'exception_message_title' => 'رسالة استثناء',
+    'exception_trace_title' => 'تتبع الإستثناء',
+
+    'backup_failed_subject' => 'أخفق النسخ الاحتياطي لل :application_name',
+    'backup_failed_body' => 'مهم: حدث خطأ أثناء النسخ الاحتياطي :application_name',
+
+    'backup_successful_subject' => 'نسخ احتياطي جديد ناجح ل :application_name',
+    'backup_successful_subject_title' => 'نجاح النسخ الاحتياطي الجديد!',
+    'backup_successful_body' => 'أخبار عظيمة، نسخة احتياطية جديدة ل :application_name تم إنشاؤها بنجاح على القرص المسمى :disk_name.',
+
+    'cleanup_failed_subject' => 'فشل تنظيف النسخ الاحتياطي للتطبيق :application_name .',
+    'cleanup_failed_body' => 'حدث خطأ أثناء تنظيف النسخ الاحتياطية ل :application_name',
+
+    'cleanup_successful_subject' => 'تنظيف النسخ الاحتياطية ل :application_name تمت بنجاح',
+    'cleanup_successful_subject_title' => 'تنظيف النسخ الاحتياطية تم بنجاح!',
+    'cleanup_successful_body' => 'تنظيف النسخ الاحتياطية ل :application_name على القرص المسمى :disk_name تم بنجاح.',
+
+    'healthy_backup_found_subject' => 'النسخ الاحتياطية ل :application_name على القرص :disk_name صحية',
+    'healthy_backup_found_subject_title' => 'النسخ الاحتياطية ل :application_name صحية',
+    'healthy_backup_found_body' => 'تعتبر النسخ الاحتياطية ل :application_name صحية. عمل جيد!',
+
+    'unhealthy_backup_found_subject' => 'مهم: النسخ الاحتياطية ل :application_name غير صحية',
+    'unhealthy_backup_found_subject_title' => 'مهم: النسخ الاحتياطية ل :application_name غير صحية. :problem',
+    'unhealthy_backup_found_body' => 'النسخ الاحتياطية ل :application_name على القرص :disk_name غير صحية.',
+    'unhealthy_backup_found_not_reachable' => 'لا يمكن الوصول إلى وجهة النسخ الاحتياطي. :error',
+    'unhealthy_backup_found_empty' => 'لا توجد نسخ احتياطية لهذا التطبيق على الإطلاق.',
+    'unhealthy_backup_found_old' => 'تم إنشاء أحدث النسخ الاحتياطية في :date وتعتبر قديمة جدا.',
+    'unhealthy_backup_found_unknown' => 'عذرا، لا يمكن تحديد سبب دقيق.',
+    'unhealthy_backup_found_full' => 'النسخ الاحتياطية تستخدم الكثير من التخزين. الاستخدام الحالي هو :disk_usage وهو أعلى من الحد المسموح به من :disk_limit.',
+
+    'no_backups_info' => 'لم يتم عمل نسخ احتياطية حتى الآن',
+    'application_name' => 'اسم التطبيق',
+    'backup_name' => 'اسم النسخ الاحتياطي',
+    'disk' => 'القرص',
+    'newest_backup_size' => 'أحدث حجم للنسخ الاحتياطي',
+    'number_of_backups' => 'عدد النسخ الاحتياطية',
+    'total_storage_used' => 'إجمالي مساحة التخزين المستخدمة',
+    'newest_backup_date' => 'أحدث تاريخ النسخ الاحتياطي',
+    'oldest_backup_date' => 'أقدم تاريخ نسخ احتياطي',
+];

backend/resources/lang/en/auth.php

@@ -0,0 +1,20 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Authentication Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used during authentication for various
+    | messages that we need to display to the user. You are free to modify
+    | these language lines according to your application's requirements.
+    |
+    */
+
+    'failed' => 'These credentials do not match our records.',
+    'password' => 'The provided password is incorrect.',
+    'throttle' => 'Too many login attempts. Please try again in :seconds seconds.',
+
+];

backend/resources/lang/en/messages.php

@@ -0,0 +1,11 @@
+<?php
+
+return [
+    'successful' => 'The operation was successful.',
+    'invalid_credential' => 'Provided credential is invalid.',
+    'incorrect_current_password' => 'Current password is incorrect.',
+    'new_password_email_sent' => 'Your new password sent to your email',
+    'file_upload_failed' => 'The file can not be uploaded.',
+    'otp' => 'your otp token is : ',
+    'incorrect_otp' => 'Incorrect OTP code.',
+];

backend/resources/lang/en/pagination.php

@@ -0,0 +1,19 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Pagination Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used by the paginator library to build
+    | the simple pagination links. You are free to change them to anything
+    | you want to customize your views to better match your application.
+    |
+    */
+
+    'previous' => '&laquo; Previous',
+    'next' => 'Next &raquo;',
+
+];

backend/resources/lang/en/passwords.php

@@ -0,0 +1,22 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Password Reset Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are the default lines which match reasons
+    | that are given by the password broker for a password update attempt
+    | has failed, such as for an invalid token or invalid new password.
+    |
+    */
+
+    'reset' => 'Your password has been reset.',
+    'sent' => 'We have emailed your password reset link.',
+    'throttled' => 'Please wait before retrying.',
+    'token' => 'This password reset token is invalid.',
+    'user' => "We can't find a user with that email address.",
+
+];

backend/resources/lang/en/validation.php

@@ -0,0 +1,186 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines contain the default error messages used by
+    | the validator class. Some of these rules have multiple versions such
+    | as the size rules. Feel free to tweak each of these messages here.
+    |
+    */
+
+    'accepted' => 'The :attribute field must be accepted.',
+    'accepted_if' => 'The :attribute field must be accepted when :other is :value.',
+    'active_url' => 'The :attribute field must be a valid URL.',
+    'after' => 'The :attribute field must be a date after :date.',
+    'after_or_equal' => 'The :attribute field must be a date after or equal to :date.',
+    'alpha' => 'The :attribute field must only contain letters.',
+    'alpha_dash' => 'The :attribute field must only contain letters, numbers, dashes, and underscores.',
+    'alpha_num' => 'The :attribute field must only contain letters and numbers.',
+    'array' => 'The :attribute field must be an array.',
+    'ascii' => 'The :attribute field must only contain single-byte alphanumeric characters and symbols.',
+    'before' => 'The :attribute field must be a date before :date.',
+    'before_or_equal' => 'The :attribute field must be a date before or equal to :date.',
+    'between' => [
+        'array' => 'The :attribute field must have between :min and :max items.',
+        'file' => 'The :attribute field must be between :min and :max kilobytes.',
+        'numeric' => 'The :attribute field must be between :min and :max.',
+        'string' => 'The :attribute field must be between :min and :max characters.',
+    ],
+    'boolean' => 'The :attribute field must be true or false.',
+    'confirmed' => 'The :attribute field confirmation does not match.',
+    'current_password' => 'The password is incorrect.',
+    'date' => 'The :attribute field must be a valid date.',
+    'date_equals' => 'The :attribute field must be a date equal to :date.',
+    'date_format' => 'The :attribute field must match the format :format.',
+    'decimal' => 'The :attribute field must have :decimal decimal places.',
+    'declined' => 'The :attribute field must be declined.',
+    'declined_if' => 'The :attribute field must be declined when :other is :value.',
+    'different' => 'The :attribute field and :other must be different.',
+    'digits' => 'The :attribute field must be :digits digits.',
+    'digits_between' => 'The :attribute field must be between :min and :max digits.',
+    'dimensions' => 'The :attribute field has invalid image dimensions.',
+    'distinct' => 'The :attribute field has a duplicate value.',
+    'doesnt_end_with' => 'The :attribute field must not end with one of the following: :values.',
+    'doesnt_start_with' => 'The :attribute field must not start with one of the following: :values.',
+    'email' => 'The :attribute field must be a valid email address.',
+    'ends_with' => 'The :attribute field must end with one of the following: :values.',
+    'enum' => 'The selected :attribute is invalid.',
+    'exists' => 'The selected :attribute is invalid.',
+    'file' => 'The :attribute field must be a file.',
+    'filled' => 'The :attribute field must have a value.',
+    'gt' => [
+        'array' => 'The :attribute field must have more than :value items.',
+        'file' => 'The :attribute field must be greater than :value kilobytes.',
+        'numeric' => 'The :attribute field must be greater than :value.',
+        'string' => 'The :attribute field must be greater than :value characters.',
+    ],
+    'gte' => [
+        'array' => 'The :attribute field must have :value items or more.',
+        'file' => 'The :attribute field must be greater than or equal to :value kilobytes.',
+        'numeric' => 'The :attribute field must be greater than or equal to :value.',
+        'string' => 'The :attribute field must be greater than or equal to :value characters.',
+    ],
+    'image' => 'The :attribute field must be an image.',
+    'in' => 'The selected :attribute is invalid.',
+    'in_array' => 'The :attribute field must exist in :other.',
+    'integer' => 'The :attribute field must be an integer.',
+    'ip' => 'The :attribute field must be a valid IP address.',
+    'ipv4' => 'The :attribute field must be a valid IPv4 address.',
+    'ipv6' => 'The :attribute field must be a valid IPv6 address.',
+    'json' => 'The :attribute field must be a valid JSON string.',
+    'lowercase' => 'The :attribute field must be lowercase.',
+    'lt' => [
+        'array' => 'The :attribute field must have less than :value items.',
+        'file' => 'The :attribute field must be less than :value kilobytes.',
+        'numeric' => 'The :attribute field must be less than :value.',
+        'string' => 'The :attribute field must be less than :value characters.',
+    ],
+    'lte' => [
+        'array' => 'The :attribute field must not have more than :value items.',
+        'file' => 'The :attribute field must be less than or equal to :value kilobytes.',
+        'numeric' => 'The :attribute field must be less than or equal to :value.',
+        'string' => 'The :attribute field must be less than or equal to :value characters.',
+    ],
+    'mac_address' => 'The :attribute field must be a valid MAC address.',
+    'max' => [
+        'array' => 'The :attribute field must not have more than :max items.',
+        'file' => 'The :attribute field must not be greater than :max kilobytes.',
+        'numeric' => 'The :attribute field must not be greater than :max.',
+        'string' => 'The :attribute field must not be greater than :max characters.',
+    ],
+    'max_digits' => 'The :attribute field must not have more than :max digits.',
+    'mimes' => 'The :attribute field must be a file of type: :values.',
+    'mimetypes' => 'The :attribute field must be a file of type: :values.',
+    'min' => [
+        'array' => 'The :attribute field must have at least :min items.',
+        'file' => 'The :attribute field must be at least :min kilobytes.',
+        'numeric' => 'The :attribute field must be at least :min.',
+        'string' => 'The :attribute field must be at least :min characters.',
+    ],
+    'min_digits' => 'The :attribute field must have at least :min digits.',
+    'missing' => 'The :attribute field must be missing.',
+    'missing_if' => 'The :attribute field must be missing when :other is :value.',
+    'missing_unless' => 'The :attribute field must be missing unless :other is :value.',
+    'missing_with' => 'The :attribute field must be missing when :values is present.',
+    'missing_with_all' => 'The :attribute field must be missing when :values are present.',
+    'multiple_of' => 'The :attribute field must be a multiple of :value.',
+    'not_in' => 'The selected :attribute is invalid.',
+    'not_regex' => 'The :attribute field format is invalid.',
+    'numeric' => 'The :attribute field must be a number.',
+    'password' => [
+        'letters' => 'The :attribute field must contain at least one letter.',
+        'mixed' => 'The :attribute field must contain at least one uppercase and one lowercase letter.',
+        'numbers' => 'The :attribute field must contain at least one number.',
+        'symbols' => 'The :attribute field must contain at least one symbol.',
+        'uncompromised' => 'The given :attribute has appeared in a data leak. Please choose a different :attribute.',
+    ],
+    'present' => 'The :attribute field must be present.',
+    'prohibited' => 'The :attribute field is prohibited.',
+    'prohibited_if' => 'The :attribute field is prohibited when :other is :value.',
+    'prohibited_unless' => 'The :attribute field is prohibited unless :other is in :values.',
+    'prohibits' => 'The :attribute field prohibits :other from being present.',
+    'regex' => 'The :attribute field format is invalid.',
+    'required' => 'The :attribute field is required.',
+    'required_array_keys' => 'The :attribute field must contain entries for: :values.',
+    'required_if' => 'The :attribute field is required when :other is :value.',
+    'required_if_accepted' => 'The :attribute field is required when :other is accepted.',
+    'required_unless' => 'The :attribute field is required unless :other is in :values.',
+    'required_with' => 'The :attribute field is required when :values is present.',
+    'required_with_all' => 'The :attribute field is required when :values are present.',
+    'required_without' => 'The :attribute field is required when :values is not present.',
+    'required_without_all' => 'The :attribute field is required when none of :values are present.',
+    'same' => 'The :attribute field must match :other.',
+    'size' => [
+        'array' => 'The :attribute field must contain :size items.',
+        'file' => 'The :attribute field must be :size kilobytes.',
+        'numeric' => 'The :attribute field must be :size.',
+        'string' => 'The :attribute field must be :size characters.',
+    ],
+    'starts_with' => 'The :attribute field must start with one of the following: :values.',
+    'string' => 'The :attribute field must be a string.',
+    'timezone' => 'The :attribute field must be a valid timezone.',
+    'unique' => 'The :attribute has already been taken.',
+    'uploaded' => 'The :attribute failed to upload.',
+    'uppercase' => 'The :attribute field must be uppercase.',
+    'url' => 'The :attribute field must be a valid URL.',
+    'ulid' => 'The :attribute field must be a valid ULID.',
+    'uuid' => 'The :attribute field must be a valid UUID.',
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify custom validation messages for attributes using the
+    | convention "attribute.rule" to name the lines. This makes it quick to
+    | specify a specific custom language line for a given attribute rule.
+    |
+    */
+
+    'custom' => [
+        'attribute-name' => [
+            'rule-name' => 'custom-message',
+        ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Attributes
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used to swap our attribute placeholder
+    | with something more reader friendly such as "E-Mail Address" instead
+    | of "email". This simply helps us make our message more expressive.
+    |
+    */
+
+    'attributes' => [
+        'phone_number' => 'phone number',
+    ],
+
+];

backend/resources/lang/fa/auth.php

@@ -0,0 +1,20 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Authentication Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used during authentication for various
+    | messages that we need to display to the user. You are free to modify
+    | these language lines according to your application's requirements.
+    |
+    */
+
+    'failed' => 'اطلاعات وارد شده صحیح نمی باشد',
+    'password' => 'رمزعبور صحیح نیست',
+    'throttle' => 'درخواست بیش از حد مجاز! لطفا بعد از :seconds ثانیه دوباره امتحان کنید',
+
+];

backend/resources/lang/fa/messages.php

@@ -0,0 +1,11 @@
+<?php
+
+return [
+    'successful' => 'عملیات با موفقیت انجام شد.',
+    'invalid_credential' => 'نام کاربری یا رمز عبور اشتباه است',
+    'incorrect_current_password' => 'رمز عبور فعلی اشتباه است',
+    'new_password_email_sent' => 'رمز عبور جدید به ایمیل شما ارسال شد.',
+    'file_upload_failed' => 'بارگذاری فایل با خطا مواجه شد.',
+    'otp' => 'کد ورود شما : ',
+    'incorrect_otp' => 'کد تایید اشتباه است .',
+];

backend/resources/lang/fa/pagination.php

@@ -0,0 +1,19 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Pagination Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used by the paginator library to build
+    | the simple pagination links. You are free to change them to anything
+    | you want to customize your views to better match your application.
+    |
+    */
+
+    'previous' => '&laquo; قبلی',
+    'next' => 'بعدی &raquo;',
+
+];

backend/resources/lang/fa/passwords.php

@@ -0,0 +1,22 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Password Reset Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are the default lines which match reasons
+    | that are given by the password broker for a password update attempt
+    | has failed, such as for an invalid token or invalid new password.
+    |
+    */
+
+    'reset' => 'رمز عبور شما با موفقیت بازیابی شد',
+    'sent' => 'ایمیلی جهت بازیابی رمزعبور برای شما ارسال شد',
+    'throttled' => 'لطفا اندکی صبر کنید و دوباره امتحان کنید',
+    'token' => 'مشخصه بازیابی رمزعبور شما صحیح نمی باشد',
+    'user' => "کاربری با این اطلاعات وجود ندارد",
+
+];

backend/resources/lang/fa/validation.php

@@ -0,0 +1,192 @@
+<?php
+
+return [
+
+    /*
+    |--------------------------------------------------------------------------
+    | Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines contain the default error messages used by
+    | the validator class. Some of these rules have multiple versions such
+    | as the size rules. Feel free to tweak each of these messages here.
+    |
+    */
+
+    'accepted' => 'گزینه :attribute باید تایید شود',
+    'accepted_if' => 'زمانی که گزینه :other برابر :value است :attribute باید تایید شود',
+    'active_url' => 'گزینه :attribute یک آدرس سایت معتبر نیست',
+    'after' => 'گزینه :attribute باید تاریخی بعد از :date باشد',
+    'after_or_equal' => 'گزینه :attribute باید تاریخی مساوی یا بعد از :date باشد',
+    'alpha' => 'گزینه :attribute باید تنها شامل حروف باشد',
+    'alpha_dash' => 'گزینه :attribute باید تنها شامل حروف، اعداد، خط تیره و زیر خط باشد',
+    'alpha_num' => 'گزینه :attribute باید تنها شامل حروف و اعداد باشد',
+    'array' => 'گزینه :attribute باید آرایه باشد',
+    'ascii' => 'گزینه :attribute تنها میتواند شامل تک حرف، عدد یا نماد ها باشد. .',
+    'before' => 'گزینه :attribute باید تاریخی قبل از :date باشد',
+    'before_or_equal' => 'گزینه :attribute باید تاریخی مساوی یا قبل از :date باشد',
+    'between' => [
+        'array' => 'گزینه :attribute باید بین :min و :max آیتم باشد',
+        'file' => 'گزینه :attribute باید بین :min و :max کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید بین :min و :max باشد',
+        'string' => 'گزینه :attribute باید بین :min و :max کاراکتر باشد',
+    ],
+    'boolean' => 'گزینه :attribute تنها می تواند صحیح یا غلط باشد',
+    'confirmed' => 'تایید مجدد گزینه :attribute صحیح نمی باشد',
+    'current_password' => 'رمزعبور صحیح نمی باشد',
+    'date' => 'گزینه :attribute یک تاریخ صحیح نمی باشد',
+    'date_equals' => 'گزینه :attribute باید تاریخی مساوی با :date باشد',
+    'date_format' => 'گزینه :attribute با فرمت :format همخوانی ندارد',
+    'decimal' => 'گزینه :attribute باید :decimal رقم اعشار داشته باشد.',
+    'declined' => 'گزینه :attribute باید رد شود',
+    'declined_if' => 'گزینه :attribute زمانی که :other برابر :value است باید رد شود',
+    'different' => 'گزینه :attribute و :other باید متفاوت باشند',
+    'digits' => 'گزینه :attribute باید :digits عدد باشد',
+    'digits_between' => 'گزینه :attribute باید بین :min و :max عدد باشد',
+    'dimensions' => 'ابعاد تصویر گزینه :attribute مجاز نمی باشد',
+    'distinct' => 'گزینه :attribute دارای افزونگی داده می باشد',
+    'doesnt_end_with' => 'گزینه :attribute نباید با این مقادیر به پایان برسد: :values.',
+    'doesnt_start_with' => 'گزینه :attribute نباید با این مقادیر شروع شود: :values.',
+    'email' => 'گزینه :attribute باید یک آدرس ایمیل صحیح باشد',
+    'ends_with' => 'گزینه :attribute باید با یکی از این مقادیر پایان یابد، :values',
+    'enum' => 'گزینه :attribute صحیح نمی باشد',
+    'exists' => 'گزینه انتخاب شده :attribute صحیح نمی باشد',
+    'file' => 'گزینه :attribute باید یک فایل باشد',
+    'filled' => 'گزینه :attribute نمی تواند خالی باشد',
+    'gt' => [
+        'array' => 'گزینه :attribute باید بیشتر از :value آیتم باشد',
+        'file' => 'گزینه :attribute باید بزرگتر از :value کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید بزرگتر از :value باشد',
+        'string' => 'گزینه :attribute باید بزرگتر از :value کاراکتر باشد',
+    ],
+    'gte' => [
+        'array' => 'گزینه :attribute باید :value آیتم یا بیشتر داشته باشد',
+        'file' => 'گزینه :attribute باید بزرگتر یا مساوی :value کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید بزرگتر یا مساوی :value باشد',
+        'string' => 'گزینه :attribute باید بزرگتر یا مساوی :value کاراکتر باشد',
+    ],
+    'image' => 'گزینه :attribute باید از نوع تصویر باشد',
+    'in' => 'گزینه انتخابی :attribute صحیح نمی باشد',
+    'in_array' => 'گزینه :attribute در :other وجود ندارد',
+    'integer' => 'گزینه :attribute باید از نوع عددی باشد',
+    'ip' => 'گزینه :attribute باید آی پی آدرس باشد',
+    'ipv4' => 'گزینه :attribute باید آی پی آدرس ورژن 4 باشد',
+    'ipv6' => 'گزینه :attribute باید آی پی آدرس ورژن 6 باشد',
+    'json' => 'گزینه :attribute باید از نوع رشته جیسون باشد',
+    'lowercase' => 'گزینه :attribute باید با حروف کوچک باشد.',
+    'lt' => [
+        'array' => 'گزینه :attribute باید کمتر از :value آیتم داشته باشد',
+        'file' => 'گزینه :attribute باید کمتر از :value کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید کمتر از :value باشد',
+        'string' => 'گزینه :attribute باید کمتر از :value کاراکتر باشد',
+    ],
+    'lte' => [
+        'array' => 'گزینه :attribute نباید کمتر از :value آیتم داشته باشد',
+        'file' => 'گزینه :attribute باید مساوی یا کمتر از :value کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید مساوی یا کمتر از :value باشد',
+        'string' => 'گزینه :attribute باید مساوی یا کمتر از :value کاراکتر باشد',
+    ],
+    'mac_address' => 'گزینه :attribute باید یک مک آدرس معتبر باشد',
+    'max' => [
+        'array' => 'گزینه :attribute نباید بیشتر از :max آیتم داشته باشد',
+        'file' => 'گزینه :attribute نباید بزرگتر از :max کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute نباید بزرگتر از :max باشد',
+        'string' => 'گزینه :attribute نباید بزرگتر از :max کاراکتر باشد',
+    ],
+    'max_digits' => 'گزینه :attribute نباید بیشتر از :max رقم باشد',
+    'mimes' => 'گزینه :attribute باید دارای یکی از این فرمت ها باشد: :values',
+    'mimetypes' =>  'گزینه :attribute باید دارای یکی از این فرمت ها باشد: :values',
+    'min' => [
+        'array' => 'گزینه :attribute باید حداقل :min آیتم داشته باشد',
+        'file' => 'گزینه :attribute باید حداقل :min کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید حداقل :min باشد',
+        'string' => 'گزینه :attribute باید حداقل :min کاراکتر باشد',
+    ],
+    'min_digits' => 'گزینه :attribute باید حداقل :min رقم باشد',
+    'missing' => 'گزینه :attribute نباید تعریف شود.',
+    'missing_if' => 'گزینه :attribute زمانی که مقدار :other برابر :value می باشد، نباید تعریف شود',
+    'missing_unless' => 'گزینه :attribute نباید تعریف شود مگر اینکه گزینه :other برابر :value باشد',
+    'missing_with' => 'گزینه :attribute زمانی که مقدار :values تعریف شده است دیگر نباید تعریف شود.',
+    'missing_with_all' => 'گزینه :attribute زمانی که :values مقدار دارد دیگر نباید تعریف شود.',
+    'multiple_of' => 'گزینه :attribute باید حاصل ضرب :value باشد',
+    'not_in' => 'گزینه انتخابی :attribute صحیح نمی باشد',
+    'not_regex' => 'فرمت گزینه :attribute صحیح نمی باشد',
+    'numeric' => 'گزینه :attribute باید از نوع عددی باشد',
+    'password' => [
+        'letters' => 'گزینه :attribute باید حداقل شامل یک حرف باشد',
+        'mixed' => 'گزینه :attribute باید شامل حداقل یک حرف بزرگ و یک حرف کوچک باشد',
+        'numbers' => 'گزینه :attribute باید شامل حداقل یک عدد باشد',
+        'symbols' => 'گزینه :attribute باید شامل حداقل یک کارکتر خاص باشد',
+        'uncompromised' => 'محتوای وارده شده در :attribute ایمن نمی باشد. لطفا گزینه :attribute را اصلاح فرمایید',
+    ],
+    'present' => 'گزینه :attribute باید از نوع درصد باشد',
+    'prohibited' => 'گزینه :attribute مجاز نمی باشد',
+    'prohibited_if' => 'گزینه :attribute زمانی که :other برابر :value باشد مجاز نمی باشد',
+    'prohibited_unless' => 'گزینه :attribute مجاز نیست مگر :other برابر :values باشد',
+    'prohibits' => 'گزینه :attribute باعث ممنوعیت :other می باشد',
+    'regex' => 'فرمت گزینه :attribute صحیح نمی باشد',
+    'required' => 'تکمیل گزینه :attribute الزامی است',
+    'required_array_keys' => 'گزینه :attribute باید شامل مقادیر: :values باشد',
+    'required_if' => 'تکمیل گزینه :attribute زمانی که :other دارای مقدار :value است الزامی می باشد',
+    'required_if_accepted' => 'تکمیل گزینه :attribute زمانی که :other انتخاب شده الزامی است',
+    'required_unless' => 'تکمیل گزینه :attribute الزامی می باشد مگر :other دارای مقدار :values باشد',
+    'required_with' => 'تکمیل گزینه :attribute زمانی که مقدار :values درصد است الزامی است',
+    'required_with_all' => 'تکمیل گزینه :attribute زمانی که مقادیر :values درصد است الزامی می باشد',
+    'required_without' => 'تکمیل گزینه :attribute زمانی که مقدار :values درصد نیست الزامی است',
+    'required_without_all' => 'تکمیل گزینه :attribute زمانی که هیچ کدام از مقادیر :values درصد نیست الزامی است',
+    'same' => 'گزینه های :attribute و :other باید یکی باشند',
+    'size' => [
+        'array' => 'گزینه :attribute باید شامل :size آیتم باشد',
+        'file' => 'گزینه :attribute باید :size کیلوبایت باشد',
+        'numeric' => 'گزینه :attribute باید :size باشد',
+        'string' => 'گزینه :attribute باید :size  کاراکتر باشد',
+    ],
+    'starts_with' => 'گزینه :attribute باید با یکی از این مقادیر شروع شود، :values',
+    'string' => 'گزینه :attribute باید تنها شامل حروف باشد',
+    'timezone' => 'گزینه :attribute باید از نوع منطقه زمانی صحیح باشد',
+    'unique' => 'این :attribute از قبل ثبت شده است',
+    'uploaded' => 'بارگذاری گزینه :attribute شکست خورد',
+    'uppercase' => 'گزینه :attribute باید با حروف بزرگ باشد',
+    'url' => 'فرمت :attribute اشتباه است',
+    'ulid' => 'گزینه :attribute باید یک ULID صحیح باشد.',
+    'uuid' => 'گزینه :attribute باید یک UUID صحیح باشد',
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Language Lines
+    |--------------------------------------------------------------------------
+    |
+    | Here you may specify custom validation messages for attributes using the
+    | convention "attribute.rule" to name the lines. This makes it quick to
+    | specify a specific custom language line for a given attribute rule.
+    |
+    */
+
+    'custom' => [
+        'attribute-name' => [
+            'rule-name' => 'custom-message',
+        ],
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Custom Validation Attributes
+    |--------------------------------------------------------------------------
+    |
+    | The following language lines are used to swap our attribute placeholder
+    | with something more reader friendly such as "E-Mail Address" instead
+    | of "email". This simply helps us make our message more expressive.
+    |
+    */
+
+    'attributes' => [
+        'name' => 'نام',
+        'username' => 'نام کاربری',
+        'email' => 'ایمیل',
+        'first_name' => 'نام',
+        'last_name' => 'نام خانوادگی',
+        'password' => 'رمز عبور',
+        'password_confirmation' => 'تاییدیه رمز عبور',
+    ],
+
+];

backend/routes/api.php

@@ -0,0 +1,8 @@
+<?php
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Route;
+
+Route::get('/user', function (Request $request) {
+    return $request->user();
+})->middleware('auth:api');