1. 目的は、LaravelアプリケーションコードをバージョンX.xからバージョン12.xにアップグレードすることです。

2. 必要な変更については、このドキュメントを参照してください: ./backend/laravel-migration-guide.md

3. 非推奨APIの使用例と置き換えのコードサンプルは、このディレクトリにあります: ./backend/laravel-code-examples/

4. 重要: 以下のファイルはLaravel 12.xでは使用されなくなったため、削除する必要があります:
- app/Http/Kernel.php
- app/Console/Kernel.php
- app/Exceptions/Handler.php
- app/Providers/RouteServiceProvider.php
- app/Providers/EventServiceProvider.php
- app/Providers/AuthServiceProvider.php

5. 重要: bootstrap/app.phpファイルは、新しいApplication::configure()フルーエントAPIを使用して完全に書き換える必要があります。

6. 重要: 'fideloper/proxy'と'fruitcake/laravel-cors'パッケージへの参照をすべて削除してください。これらはLaravelコアに含まれるようになりました。
   
7. 重要: TrustProxiesミドルウェアを'Fideloper\Proxy\TrustProxies'ではなく'Illuminate\Http\Middleware\TrustProxies'を継承するように更新してください。

8. 重要: Modelのcastsをプロパティ構文（$casts = [...]）からメソッド構文（protected function casts(): array）に更新してください。

9. 重要: composer.jsonをPHP ^8.2とLaravel ^12.0を要求するように更新し、非推奨パッケージを削除してください。

10. 変換定義'Laravel-Upgrade-12'を./backendのコードベースで実行してください。

atxコマンド実行例
atx transform --name "Laravel-Upgrade-12" --path ./backend

## 変換後の確認事項
1. `composer install` が正常に完了すること
2. `php artisan` コマンドが動作すること
3. 既存のテストが通ること（`php artisan test`）
4. APIエンドポイントが正常に動作すること

## 注意事項
- Dockerfileも更新が必要です（PHP 8.2+イメージに変更）
- .envファイルに新しい環境変数が必要な場合があります
- データベースマイグレーションの互換性を確認してください 

1. The objective is to upgrade my Laravel application code from version 8.x to version 12.x.

2. Please refer to this documentation for all required changes: ./backend/laravel-migration-guide.md

3. I have code samples for deprecated API usage and their replacements in this directory: ./backend/laravel-code-examples/

4. IMPORTANT: The following files must be DELETED as they are no longer used in Laravel 12.x:
   - app/Http/Kernel.php
   - app/Console/Kernel.php
   - app/Exceptions/Handler.php
   - app/Providers/RouteServiceProvider.php
   - app/Providers/EventServiceProvider.php
   - app/Providers/AuthServiceProvider.php

5. IMPORTANT: The bootstrap/app.php file must be completely rewritten using the new Application::configure() fluent API.

6. IMPORTANT: Remove all references to 'fideloper/proxy' and 'fruitcake/laravel-cors' packages as they are now included in Laravel core.

7. IMPORTANT: Update the TrustProxies middleware to extend 'Illuminate\Http\Middleware\TrustProxies' instead of 'Fideloper\Proxy\TrustProxies'.

8. IMPORTANT: Update Model casts from property syntax ($casts = [...]) to method syntax (protected function casts(): array).

9. IMPORTANT: Update composer.json to require PHP ^8.2 and Laravel ^12.0, and remove deprecated packages.

10. Execute the transformation named 'Laravel-Upgrade-12' on the codebase at ./backend

> I don't see any existing Laravel upgrade transformations in the registry. I'll now create a new transformation definition for upgrading Laravel 8.x to 12.x based on your requirements. I'll help you create a transformation definition for upgrading your Laravel application from version 8.x to version 12.x. This is a significant framework upgrade that will modernize your application with the latest Laravel features and architecture patterns.

Let me start by processing the documentation and code examples you've provided.


🔧  Using tool: document_manager (trusted)
 ⋮ 
 ● Operations:
   - add: ./backend/laravel-migration-guide.md
   - add: ./backend/laravel-code-examples/
 ● Completed in 18ms

Perfect! I've created a comprehensive transformation definition for upgrading your Laravel application from version 8.x to 12.x. The transformation definition includes:

Key highlights:
- Complete rewrite of bootstrap/app.php using the new Application::configure() fluent API
- Deletion of deprecated files (Kernel.php files, Handler.php, and obsolete service providers)
- Migration of middleware configuration from Kernel.php to bootstrap/app.php
- Update of TrustProxies to use Laravel core instead of fideloper/proxy
- Conversion of model casts from property syntax to method syntax
- Removal of deprecated packages (fideloper/proxy, fruitcake/laravel-cors)
- Comprehensive composer.json updates for PHP 8.2+ and Laravel 12.x
- Migration of scheduled tasks and exception handling to new locations
- 16 detailed implementation steps covering all aspects of the upgrade
- 12 validation criteria to ensure successful migration

The transformation definition has been saved to ~/.aws/atx/custom/20260104_122241_65065bfb/artifacts/tp-staging/transformation_definition.md and is ready for execution on your codebase at ./backend using the transformation name 'Laravel-Upgrade-12'. The Laravel 8.x to 12.x transformation definition has been successfully created. You can review and update it directly at:

~/.aws/atx/custom/20260104_122241_65065bfb/artifacts/tp-staging/transformation_definition.md

The transformation is configured to handle all the critical requirements you specified, including file deletions, bootstrap/app.php rewrite, middleware updates, model casts conversion, and composer.json modifications.

Would you like to:
1. Apply this transformation to your codebase at ./backend
2. Review or modify the transformation definition first
3. Publish this transformation to the registry for future use

# Laravel-8.x-to-12.x-Upgrade

## Objective
Upgrade Laravel application from version 8.x to version 12.x, modernizing the application structure with the new streamlined bootstrap architecture, removing deprecated kernel files, updating middleware configuration, migrating model casts to method syntax, and updating all dependencies to be compatible with PHP 8.2+ and Laravel 12.x standards.

## Summary
This transformation upgrades a Laravel 8.x application to Laravel 12.x by rewriting the bootstrap/app.php file using the new Application::configure() fluent API, deleting obsolete kernel and handler files (app/Http/Kernel.php, app/Console/Kernel.php, app/Exceptions/Handler.php), removing deprecated service providers (RouteServiceProvider, EventServiceProvider, AuthServiceProvider), updating middleware classes to use Laravel core implementations, converting model casts from property syntax to method syntax, removing deprecated packages (fideloper/proxy, fruitcake/laravel-cors), and updating composer.json to require PHP 8.2+ with Laravel 12.0+ dependencies.

## Entry Criteria
1. The codebase is a Laravel 8.x application (verified by checking composer.json for "laravel/framework": "^8.x").
2. The application uses PHP 7.4 or 8.0 (will be upgraded to PHP 8.2+).
3. The application contains traditional Laravel 8.x structure with app/Http/Kernel.php, app/Console/Kernel.php, and app/Exceptions/Handler.php files.
4. The bootstrap/app.php file uses the legacy bootstrap structure with singleton bindings.
5. Models use the property-based $casts syntax for attribute casting.
6. The composer.json includes deprecated packages such as fideloper/proxy and/or fruitcake/laravel-cors.
7. The app/Http/Middleware/TrustProxies.php extends Fideloper\Proxy\TrustProxies if the package is present.

## Implementation Steps

### 1. Update Composer Dependencies
Update composer.json to require PHP 8.2+ and Laravel 12.x with compatible packages:

- Change "php": "^7.4|^8.0" to "php": "^8.2"
- Change "laravel/framework": "^8.x" to "laravel/framework": "^12.0"
- Remove "fideloper/proxy" from require section
- Remove "fruitcake/laravel-cors" from require section
- Remove "facade/ignition" from require-dev section
- Update "laravel/sanctum" to "^4.0" if present
- Update "laravel/tinker" to "^2.9" if present
- Update "guzzlehttp/guzzle" to "^7.8" if present
- Update "nunomaduro/collision" to "^8.0" in require-dev
- Update "phpunit/phpunit" to "^11.0" in require-dev
- Update "mockery/mockery" to "^1.6" in require-dev
- Update "fakerphp/faker" to "^1.23" in require-dev

### 2. Rewrite bootstrap/app.php
Replace the entire contents of bootstrap/app.php with the new Laravel 12.x fluent API structure:

- Remove all existing code from bootstrap/app.php
- Add use statements: Illuminate\Foundation\Application, Illuminate\Foundation\Configuration\Exceptions, Illuminate\Foundation\Configuration\Middleware
- Replace with Application::configure(basePath: dirname(__DIR__))
- Add ->withRouting() configuration with web, api, commands, and health parameters
- Add ->withMiddleware() closure for middleware configuration
- Add ->withExceptions() closure for exception handling configuration (include dontFlash for password fields)
- End with ->create() to return the application instance

### 3. Delete Deprecated Kernel Files
Remove the following files that are no longer used in Laravel 12.x:

- Delete app/Http/Kernel.php
- Delete app/Console/Kernel.php
- Delete app/Exceptions/Handler.php

### 4. Delete or Update Deprecated Service Providers
Remove service provider files that are no longer needed in Laravel 12.x:

- Delete app/Providers/RouteServiceProvider.php (routing is now configured in bootstrap/app.php)
- Delete app/Providers/EventServiceProvider.php (if not customized; Laravel 12.x uses automatic event discovery)
- Delete app/Providers/AuthServiceProvider.php (if not customized; Laravel 12.x uses automatic policy discovery)
- If these providers contain custom logic, migrate that logic to bootstrap/app.php or appropriate locations before deletion
  
### 5. Update TrustProxies Middleware
If app/Http/Middleware/TrustProxies.php exists:

- Change the parent class from "use Fideloper\Proxy\TrustProxies as Middleware" to "use Illuminate\Http\Middleware\TrustProxies as Middleware"
- Update the $headers property to use the new Laravel 12.x syntax combining: Request::HEADER_X_FORWARDED_FOR | Request::HEADER_X_FORWARDED_HOST | Request::HEADER_X_FORWARDED_PORT | Request::HEADER_X_FORWARDED_PROTO | Request::HEADER_X_FORWARDED_AWS_ELB

### 6. Remove CORS Middleware References
Remove all references to the deprecated fruitcake/laravel-cors package:
- Remove any "\Fruitcake\Cors\HandleCors::class" references from middleware configurations
- CORS functionality is now built into Laravel core and can be configured via config/cors.php if needed

### 7. Migrate Scheduled Tasks to routes/console.php
If app/Console/Kernel.php contains a schedule() method:

- Extract all scheduled commands from the schedule() method
- Move them to routes/console.php using the Schedule facade
- Example: Change "$schedule->command('inspire')->hourly()" to "Schedule::command('inspire')->hourly()"
- Add "use Illuminate\Support\Facades\Schedule;" at the top of routes/console.php

### 8. Update Model Casts to Method Syntax
For all Eloquent models in app/Models/ directory:

- Identify models with a protected $casts property
- Replace the protected $casts property with a protected casts() method
- The method should return an array with the same cast definitions
- Example transformation:

Before: protected $casts = ['is_completed' => 'boolean'];
After: protected function casts(): array { return ['is_completed' => 'boolean']; }

### 9. Update Configuration Files
Update config/app.php:

- Remove or simplify the 'providers' array (Laravel 12.x uses automatic service provider discovery)
- Keep only custom application-specific providers that are not auto-discovered
- Verify 'aliases' array is still present for facade aliases

### 10. Migrate Exception Handler Configuration
If app/Exceptions/Handler.php contains custom exception handling logic:

- Migrate dontReport configurations to bootstrap/app.php within the withExceptions() closure using $exceptions->dontReport()
- Migrate dontFlash configurations to bootstrap/app.php within the withExceptions() closure using $exceptions->dontFlash()
- Migrate reportable() and renderable() closures to bootstrap/app.php within the withExceptions() closure
- Delete app/Exceptions/Handler.php after migration

### 11. Migrate HTTP Middleware Configuration
If app/Http/Kernel.php contains custom middleware:

- Migrate global middleware from $middleware property to bootstrap/app.php using $middleware->append() or $middleware->prepend()
- Migrate middleware groups from $middlewareGroups property to bootstrap/app.php using $middleware->web() and $middleware->api()
- Migrate middleware aliases from $middlewareAliases or $routeMiddleware property to bootstrap/app.php using $middleware->alias()
- Example: $middleware->alias(['auth' => \App\Http\Middleware\Authenticate::class])

### 12. Update PHPUnit Configuration
Update phpunit.xml for PHPUnit 11.x compatibility:

- Update XML namespace to phpunit 11.x schema if needed
- Verify test suite paths are correct
- Ensure PHP version requirement matches 8.2+

### 13. Update Environment Variables
Add new required environment variables to .env and .env.example files:
- Add APP_MAINTENANCE_DRIVER=file
- Add BCRYPT_ROUNDS=12

### 14. Remove Obsolete Configuration Files
Review and optionally remove configuration files that now use framework defaults in Laravel 12.x (only if using default values):

- config/auth.php (can be removed if using defaults)
- config/cache.php (can be removed if using defaults)
- config/database.php (can be removed if using defaults)
- config/logging.php (can be removed if using defaults)
- config/session.php (can be removed if using defaults)
- config/view.php (can be removed if using defaults)

### 15. Update Routes Configuration
Update routes/api.php and routes/web.php:

- API routes are now automatically prefixed with 'api' and use 'api' middleware group
- Remove redundant Route::middleware('api')->group() wrappers from routes/api.php if present
- Ensure all routes use updated controller syntax compatible with PHP 8.2+

### 16. Update PHP Syntax to 8.2+ Standards
Review all PHP files for opportunities to use PHP 8.2+ features:

- Use constructor property promotion where applicable
- Use explicit return types on methods
- Use typed properties where applicable
- Use readonly properties where appropriate

## Validation / Exit Criteria
1. The composer.json file specifies "php": "^8.2" and "laravel/framework": "^12.0" with all deprecated packages removed (fideloper/proxy, fruitcake/laravel-cors).
2. The bootstrap/app.php file uses the new Application::configure() fluent API and includes withRouting(), withMiddleware(), and withExceptions() configurations.
3. The following files have been successfully deleted: app/Http/Kernel.php, app/Console/Kernel.php, app/Exceptions/Handler.php, app/Providers/RouteServiceProvider.php, app/Providers/EventServiceProvider.php, app/Providers/AuthServiceProvider.php.
4. The app/Http/Middleware/TrustProxies.php extends Illuminate\Http\Middleware\TrustProxies instead of Fideloper\Proxy\TrustProxies.
5. All Eloquent models use the method-based casts() syntax instead of the property-based $casts syntax.
6. All middleware configurations from the old Kernel.php have been migrated to bootstrap/app.php within the withMiddleware() closure.
7. All scheduled tasks from the old Console\Kernel.php have been migrated to routes/console.php using the Schedule facade.
8. All exception handling configurations from the old Handler.php have been migrated to bootstrap/app.php within the withExceptions() closure.
9. The application runs successfully with "php artisan serve" without errors.
10. All existing unit and feature tests pass with PHPUnit 11.x.
11. The application's existing functionality remains intact and operates correctly after the upgrade.
12. The .env file includes new required variables: APP_MAINTENANCE_DRIVER and BCRYPT_ROUNDS.

# Upgrade Laravel 8.x to 12.x

## Objective
Upgrade Laravel application code from version 8.x to version 12.x, implementing major architectural changes including the new Application::configure() bootstrap system, middleware consolidation, service provider auto-discovery, updated model casts syntax, and removal of deprecated kernel files while ensuring compatibility with PHP 8.2+ and updated dependencies.

## Summary
This transformation upgrades Laravel 8.x applications to 12.x by rewriting the application bootstrap file to use the new fluent configuration API, deleting obsolete kernel and handler files that are no longer used in Laravel 12.x, migrating middleware configuration from HTTP Kernel to bootstrap/app.php, updating TrustProxies middleware to use the core Laravel implementation, converting model casts from property to method syntax, removing deprecated packages like fideloper/proxy and fruitcake/laravel-cors from composer.json, and updating PHP and framework version requirements to match Laravel 12.x specifications.

## Entry Criteria
1. The application is currently running Laravel 8.x
2. The codebase contains a bootstrap/app.php file using the legacy Application instantiation pattern
3. The application has app/Http/Kernel.php, app/Console/Kernel.php, and app/Exceptions/Handler.php files
4. The composer.json file specifies Laravel framework version 8.x
5. PHP version is currently 7.4 or 8.0
6. Models use the property-based $casts syntax for attribute casting
7. The application may reference fideloper/proxy or fruitcake/laravel-cors packages
8. Middleware configuration exists in app/Http/Kernel.php

## Implementation Steps
### 1. Update composer.json dependencies

- Update PHP version requirement from current version to "^8.2"
- Update laravel/framework from "^8.0" to "^12.0"
- Remove deprecated packages: "fideloper/proxy", "fruitcake/laravel-cors", "facade/ignition" (if present)
- Update laravel/sanctum to "^4.0" if present
- Update laravel/tinker to "^2.9" if present
- Update guzzlehttp/guzzle to "^7.8" if present
- Update development dependencies: phpunit/phpunit to "^11.0", nunomaduro/collision to "^8.0", fakerphp/faker to "^1.23"
- Add laravel/pail "^1.0" to require-dev if not present
- Update laravel/sail to "^1.26" in require-dev if present
- Update mockery/mockery to "^1.6" in require-dev if present

### 2. Rewrite bootstrap/app.php with Application::configure() fluent API
- Delete the entire contents of the existing bootstrap/app.php file
- Add proper PHP opening tag and use statements for Illuminate\Foundation\Application, Illuminate\Foundation\Configuration\Exceptions, and Illuminate\Foundation\Configuration\Middleware
- Replace legacy Application instantiation and singleton bindings with Application::configure(basePath: dirname(__DIR__))
- Configure routing using ->withRouting() method specifying web, api, commands, and health check routes
- Add ->withMiddleware() callback for middleware configuration
- Add ->withExceptions() callback for exception handling configuration with dontFlash array including 'current_password', 'password', 'password_confirmation'
- End the configuration chain with ->create() and return the result
- Ensure the file structure matches the pattern:

php

<?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) {
//
})

->withExceptions(function (Exceptions $exceptions) {
$exceptions->dontFlash([
'current_password',
'password',
'password_confirmation',
]);
})->create();

### 3. Migrate middleware configuration from app/Http/Kernel.php to bootstrap/app.php

- Before deleting app/Http/Kernel.php, extract all custom middleware configurations from the $middleware, $middlewareGroups, and $routeMiddleware properties
- Move global middleware to the withMiddleware() callback in bootstrap/app.php using $middleware->api(prepend: [...]) or $middleware->web(prepend: [...])
- Convert middleware aliases from $routeMiddleware to $middleware->alias([...]) within the withMiddleware() callback
- Preserve any custom middleware priority configurations
- Note: Do not migrate references to Fruitcake\Cors\HandleCors as CORS is now built into Laravel core

### 4. Delete app/Http/Kernel.php
- Remove the entire app/Http/Kernel.php file from the codebase as middleware is now configured in bootstrap/app.php

### 5. Migrate scheduled tasks from app/Console/Kernel.php to routes/console.php

- Before deleting app/Console/Kernel.php, extract all scheduled task definitions from the schedule() method
- Open or create routes/console.php file
- Add use statement for Illuminate\Support\Facades\Schedule
- Convert each $schedule->command() call to Schedule::command() static calls
- Preserve all timing methods (hourly, daily, cron expressions, etc.) and callbacks
- Convert any custom command registrations if present
- If the project does not have scheduled tasks in app/Console/Kernel.php, simply ensure routes/console.php exists with basic structure  

### 6. Delete app/Console/Kernel.php

- Remove the entire app/Console/Kernel.php file from the codebase as scheduling is now handled in routes/console.php

### 7. Migrate exception handling from app/Exceptions/Handler.php to bootstrap/app.php

- Before deleting app/Exceptions/Handler.php, extract any custom exception handling logic from register(), reportable(), renderable(), or dontReport properties
- Move dontFlash configurations to the withExceptions() callback in bootstrap/app.php using $exceptions->dontFlash([...])
- Convert reportable() callbacks to $exceptions->report() within the withExceptions() callback
- Convert renderable() callbacks to $exceptions->render() within the withExceptions() callback
- Move dontReport configurations to $exceptions->dontReport([...])
- Preserve any custom throttling or context logic

### 8. Delete app/Exceptions/Handler.php

- Remove the entire app/Exceptions/Handler.php file from the codebase as exception handling is now configured in bootstrap/app.php

### 9. Delete app/Providers/RouteServiceProvider.php

- Remove the app/Providers/RouteServiceProvider.php file as routing is now configured in bootstrap/app.php via withRouting()
- Remove the reference to App\Providers\RouteServiceProvider from config/app.php providers array if present

### 10. Delete app/Providers/EventServiceProvider.php

- Remove the app/Providers/EventServiceProvider.php file as Laravel 12.x uses automatic event discovery
- Remove the reference to App\Providers\EventServiceProvider from config/app.php providers array if present
- Note: Only delete if not heavily customized; preserve if it contains complex event listener mappings  

### 11. Delete app/Providers/AuthServiceProvider.php

- Remove the app/Providers/AuthServiceProvider.php file if using default policy configurations
- Remove the reference to App\Providers\AuthServiceProvider from config/app.php providers array if present
- Note: Only delete if not customized; preserve if it contains custom gates or policy mappings  

### 12. Update app/Http/Middleware/TrustProxies.php middleware

- Change the use statement from "use Fideloper\Proxy\TrustProxies as Middleware;" to "use Illuminate\Http\Middleware\TrustProxies as Middleware;"
- Update the class declaration to extend the new base class: "class TrustProxies extends Middleware"
- Verify the $headers property uses Request constants (Request::HEADER_X_FORWARDED_FOR | Request::HEADER_X_FORWARDED_HOST | Request::HEADER_X_FORWARDED_PORT | Request::HEADER_X_FORWARDED_PROTO | Request::HEADER_X_FORWARDED_AWS_ELB)
- Preserve any custom $proxies configuration

### 13. Remove all references to fruitcake/laravel-cors package

- Remove any import statements for Fruitcake\Cors classes from all PHP files
- Remove HandleCors middleware references from any configuration files
- If config/cors.php exists and contains only default configurations, consider deleting it; if customized, retain the file as Laravel 12.x still supports CORS configuration
- CORS functionality is now built into Laravel core and will work automatically 

### 14. Update all Eloquent models to use method-based casts syntax

- Locate all model files in app/Models directory and subdirectories
- Find models with protected $casts property definitions
- Convert each "protected $casts = [...];" property to "protected function casts(): array { return [...]; }"
- Ensure the method visibility is "protected" and return type is explicitly declared as "array"
- Preserve all existing cast types (boolean, integer, datetime, etc.) within the returned array
- Maintain proper indentation and formatting
- Example transformation:

php

// BEFORE
protected $casts = [
'is_completed' => 'boolean',
'created_at' => 'datetime',
];

// AFTER

protected function casts(): array
{
return [
'is_completed' => 'boolean',
'created_at' => 'datetime',
];
}

### 15. Update config/app.php providers array

- Remove the entire 'providers' array or retain only custom application-specific service providers
- Remove all default Laravel service providers as they are now auto-discovered
- Remove references to: RouteServiceProvider, EventServiceProvider, AuthServiceProvider (if deleted in previous steps)
- Keep only providers specific to the application or third-party packages that are not auto-discovered

### 16. Update phpunit.xml for PHPUnit 11 compatibility

- Update PHPUnit schema reference to version 11.x if present in the root element
- Update any deprecated configuration attributes or elements according to PHPUnit 11 migration guide
- Verify testsuites configuration remains compatible
- Update coverage settings if needed for PHPUnit 11

### 17. Add new environment variables to .env file

- Add "APP_MAINTENANCE_DRIVER=file" if not present
- Add "BCRYPT_ROUNDS=12" if not present
- Review and update any other environment-specific configurations for Laravel 12.x compatibility

### 18. Update Dockerfile to PHP 8.2+ (manual review required)

- Locate Dockerfile in the project root or docker directory
- Update base image to use PHP 8.2 or higher (e.g., php:8.2-fpm or php:8.3-fpm)
- Update any PHP extension installations to be compatible with PHP 8.2+
- Update composer installation if specified in Dockerfile
- Note: This step requires manual review after automated transformation to ensure all PHP extensions and configurations are properly updated

### 19. Review tests/CreatesApplication.php structure (manual review required)

- Open tests/CreatesApplication.php file
- Verify the createApplication() method remains compatible with the new bootstrap/app.php structure
- The method should return Application::configure() result, which should work with existing structure
- Run tests after migration to confirm compatibility
- Note: Typically no changes are needed, but verification is required when running the test suite

### 20. Review routes/console.php for scheduled task migration (conditional)

- If the project does not have scheduled tasks defined in the original app/Console/Kernel.php, ensure routes/console.php exists with basic structure
- If scheduled tasks were present, verify they were correctly migrated to routes/console.php in step 5
- Ensure proper use statement for Schedule facade is present
- Confirm all timing methods and callbacks were preserved correctly  

### 21. Run composer update to install updated dependencies

- Execute "composer update" to install Laravel 12.x and all updated dependencies
- Resolve any dependency conflicts that arise
- Verify all packages are compatible with PHP 8.2+ and Laravel 12.x
  
### 22. Clear and rebuild application caches

- Run "php artisan config:clear" to clear configuration cache
- Run "php artisan cache:clear" to clear application cache
- Run "php artisan view:clear" to clear compiled views
- Run "php artisan route:clear" to clear route cache
- Run "php artisan config:cache" to rebuild configuration cache
- Run "php artisan route:cache" to rebuild route cache

## Validation / Exit Criteria

1. The composer.json file specifies Laravel framework version ^12.0 and PHP version ^8.2
2. All deprecated packages (fideloper/proxy, fruitcake/laravel-cors, facade/ignition) have been removed from composer.json
3. The bootstrap/app.php file uses the Application::configure() fluent API pattern with withRouting(), withMiddleware(), and withExceptions() methods
4. The files app/Http/Kernel.php, app/Console/Kernel.php, app/Exceptions/Handler.php, app/Providers/RouteServiceProvider.php, app/Providers/EventServiceProvider.php, and app/Providers/AuthServiceProvider.php have been deleted
5. Middleware configuration has been migrated to the withMiddleware() callback in bootstrap/app.php
6. Exception handling configuration has been migrated to the withExceptions() callback in bootstrap/app.php
7. Scheduled tasks have been migrated from Console Kernel to routes/console.php using Schedule facade
8. The app/Http/Middleware/TrustProxies.php class extends Illuminate\Http\Middleware\TrustProxies instead of Fideloper\Proxy\TrustProxies
9. All Eloquent models use the method-based casts() syntax instead of property-based $casts
10. No references to Fruitcake\Cors classes remain in the codebase
11. The config/app.php providers array contains only custom application providers or is removed entirely
12. PHPUnit configuration has been updated for version 11 compatibility
13. New environment variables APP_MAINTENANCE_DRIVER and BCRYPT_ROUNDS have been added to .env
14. The command "composer install" completes successfully without errors
15. The command "php artisan config:cache" executes successfully without errors
16. The command "php artisan route:list" displays all application routes correctly
17. All existing unit and feature tests pass with "php artisan test" or "vendor/bin/phpunit"
18. The application boots successfully with "php artisan serve" and displays the homepage without errors
19. Dockerfile has been reviewed and updated to use PHP 8.2+ base image (manual confirmation required)
20. Tests run successfully confirming tests/CreatesApplication.php compatibility (manual confirmation required)

Perfect! I've created a comprehensive transformation plan for upgrading your Laravel application from version 8.x to version 12.x. 

## Transformation Plan Summary

The plan consists of **8 carefully sequenced steps** that follow a component-by-component approach:

### **Step 1: Update Composer Dependencies**
- Upgrade Laravel framework from ^8.75 to ^12.0
- Update PHP requirement from ^7.4|^8.0 to ^8.2
- Remove deprecated packages (fideloper/proxy, fruitcake/laravel-cors)
- Update first-party Laravel packages to v12 compatible versions

### **Step 2: Update TrustProxies Middleware**
- Migrate from deprecated Fideloper package to Laravel's built-in middleware
- Update to extend `Illuminate\Http\Middleware\TrustProxies`
- Modernize $headers property configuration

### **Step 3: Rewrite bootstrap/app.php**
- Implement new `Application::configure()` fluent API
- Migrate all middleware configuration from Kernel to bootstrap
- Configure routing, middleware groups, and exception handling
- Set up web/api middleware groups and aliases

### **Step 4: Delete Legacy Files**
- Remove 6 deprecated files: Http/Kernel, Console/Kernel, Handler, RouteServiceProvider, EventServiceProvider, AuthServiceProvider
- These are replaced by the new bootstrap/app.php structure

### **Step 5: Update Model Casts**
- Convert `$casts` property to `casts()` method syntax
- Update User and Task models with proper return types

### **Step 6: Update Configuration Files**
- Remove deleted service provider references from config/app.php
- Verify CORS, database, and logging configurations for v12 compatibility

### **Step 7: Update Dockerfile**
- Upgrade base image from PHP 8.0 to PHP 8.2+
- Ensure PHP extensions are PHP 8.2+ compatible

### **Step 8: Clean Up and Optimize**
- Clear all caches (config, routes, views)
- Rebuild caches with new Laravel 12.x structure
- Verify application functionality

Each step is independently executable and verifiable using `php artisan test > build.log 2>&1`.

---

**Please review the plan at ~/.aws/atx/custom/20260104_133047_9466d204/artifacts/plan.json and let me know if you would like me to proceed with the transformation, or you can provide feedback and I will adjust the plan.**

# Laravel 8.x to 12.x Upgrade - Validation Summary

## Transformation Summary

Upgrade Laravel application from version 8.x to version 12.x, implementing the new application structure with Application::configure() fluent API, updated middleware implementations, modernized configuration patterns, converting model casts from property to method syntax, removing obsolete packages (fideloper/proxy, fruitcake/laravel-cors), and updating the Dockerfile to use PHP 8.2+ base images.

## Overall Status

**COMPLETE** - All 14 exit criteria successfully passed validation.

---
## Exit Criteria Results

### Criterion 1: Legacy Files Deletion

**Status:** ✅ PASS

**Description:** All six legacy files have been successfully deleted (Http/Kernel.php, Console/Kernel.php, Exceptions/Handler.php, RouteServiceProvider.php, EventServiceProvider.php, AuthServiceProvider.php)

**Verification Method:** File system verification using ls command

**Evidence:** Executed `ls -la` command on all six legacy files and confirmed "No such file or directory" for all of them:

- app/Http/Kernel.php - DELETED
- app/Console/Kernel.php - DELETED
- app/Exceptions/Handler.php - DELETED
- app/Providers/RouteServiceProvider.php - DELETED
- app/Providers/EventServiceProvider.php - DELETED
- app/Providers/AuthServiceProvider.php - DELETED

**Observations:** All legacy kernel and service provider files successfully removed as required by Laravel 12.x architecture.

---
### Criterion 2: Bootstrap File Modernization

**Status:** ✅ PASS
**Description:** The bootstrap/app.php file uses the Application::configure() fluent API with proper method chaining  
**Verification Method:** Code inspection of bootstrap/app.php
**Evidence:** Reviewed bootstrap/app.php and confirmed:

- Uses `Application::configure(basePath: dirname(__DIR__))`
- Implements withRouting() with web, api, commands, channels routes and health endpoint at '/up'
- Implements withMiddleware() with proper global middleware stack, middleware groups (web, api), and middleware aliases
- Implements withExceptions() for exception handling configuration
- Returns configured application instance with create() method

**Observations:** Complete rewrite following Laravel 12.x patterns with proper method chaining as specified in transformation definition.

---
### Criterion 3: Model Casts Modernization

**Status:** ✅ PASS
**Description:** All Eloquent models use the casts() method syntax instead of the $casts property
**Verification Method:** Code inspection of model files
**Evidence:** Reviewed all model files:

- app/Models/User.php: Uses `protected function casts(): array { return ['email_verified_at' => 'datetime']; }`
- app/Models/Task.php: Uses `protected function casts(): array { return ['is_completed' => 'boolean', 'created_at' => 'datetime', 'updated_at' => 'datetime']; }`

Both models have proper return type declarations (: array) and proper method syntax.
**Observations:** All models successfully converted from $casts property to casts() method syntax.

---
### Criterion 4: Composer Dependencies Update
**Status:** ✅ PASS
**Description:** The composer.json file specifies Laravel ^12.0 and PHP ^8.2, with fideloper/proxy and fruitcake/laravel-cors packages removed
**Verification Method:** Code inspection of composer.json
**Evidence:** Reviewed composer.json and confirmed:

- PHP requirement: "^8.2" ✅
- Laravel framework: "^12.0" ✅
- fideloper/proxy: NOT PRESENT (removed) ✅
- fruitcake/laravel-cors: NOT PRESENT (removed) ✅
- Updated packages: laravel/sanctum "^4.0", phpunit/phpunit "^11.0", nunomaduro/collision "^8.0"

**Observations:** All dependency requirements met for Laravel 12.x and PHP 8.2+.

---
### Criterion 5: TrustProxies Middleware Update
**Status:** ✅ PASS
**Description:** The TrustProxies middleware extends Illuminate\Http\Middleware\TrustProxies
**Verification Method:** Code inspection of TrustProxies middleware
**Evidence:** Reviewed app/Http/Middleware/TrustProxies.php and confirmed:

- Uses `use Illuminate\Http\Middleware\TrustProxies as Middleware;`
- Class declaration: `class TrustProxies extends Middleware`
- Proper $proxies and $headers properties configured with HEADER_X_FORWARDED_* constants

**Observations:** Successfully migrated from deprecated fideloper/proxy package to Laravel built-in TrustProxies middleware.

---
### Criterion 6: Dockerfile PHP Version Update
**Status:** ✅ PASS
**Description:** The Dockerfile uses a PHP 8.2+ base image
**Verification Method:** Code inspection of Dockerfile
**Evidence:** Reviewed Dockerfile and confirmed:

- FROM instruction: `FROM php:8.2-cli` ✅
- Composer version: 2.2 (compatible with PHP 8.2+) ✅
- All PHP extensions verified compatible with PHP 8.2
**Observations:** Dockerfile properly updated from php:8.0-cli to php:8.2-cli.

---
### Criterion 7: Composer Install Success
**Status:** ✅ PASS
**Description:** Running composer install completes without dependency conflicts
**Verification Method:** Check for vendor directory and dependencies
**Evidence:** Worklog shows successful composer update execution during Docker build. Docker image builds successfully with Laravel 12.44.0 installed. All 16 tests executed successfully, indicating dependencies are properly installed and functional.
**Observations:** Composer not available in local environment, but Docker build process demonstrates successful dependency installation without conflicts.

---
### Criterion 8: Artisan Optimize Clear Success
**Status:** ✅ PASS
**Description:** Running php artisan optimize:clear executes without errors
**Verification Method:** Execute artisan command in Docker container
**Evidence:** Executed `php artisan optimize:clear` in Docker container and confirmed:

- config cache cleared (0.65ms DONE)
- application cache cleared (2.40ms DONE)
- events cache cleared (0.86ms DONE)
- routes cache cleared (0.43ms DONE)
- views cache cleared (2.36ms DONE)
All operations completed successfully with no errors.
**Observations:** All cache clearing operations execute successfully in Laravel 12.x environment.

---
### Criterion 9: Application Startup Success
**Status:** ✅ PASS
**Description:** The application starts successfully with php artisan serve
**Verification Method:** Execute artisan serve command and verify startup
**Evidence:** Docker container configured with CMD to run `php artisan serve --host=0.0.0.0 --port=8000`. Container starts successfully and application responds to HTTP requests (verified by curl test returning HTML response). Route list shows 10 registered routes including API endpoints.
**Observations:** Application starts and serves requests successfully in Laravel 12.x environment.

---
### Criterion 10: Test Suite Success
**Status:** ✅ PASS
**Description:** All existing tests pass when running php artisan test
**Verification Method:** Execute test suite via build command
**Evidence:** Executed `php artisan test` and confirmed:

- Tests: 16 passed (1621 assertions)
- Duration: 0.54s
- TaskControllerTest: 12 tests passed
- TaskPropertyTest: 4 tests passed
- Build log shows all tests passing with green checkmarks
**Observations:** Complete test suite passes with 100% success rate. All functional and property-based tests working correctly.

---
### Criterion 11: Routes and Middleware Configuration
**Status:** ✅ PASS
**Description:** All routes are accessible and middleware is properly applied
**Verification Method:** Execute route:list command
**Evidence:** Executed `php artisan route:list` and confirmed 10 routes registered:

- GET|HEAD / (root route)
- GET|HEAD api/tasks (TaskController@index)
- POST api/tasks (TaskController@store)
- PUT api/tasks/{id} (TaskController@update)
- DELETE api/tasks/{id} (TaskController@destroy)
- GET|HEAD api/user
- GET|POST|HEAD broadcasting/auth
- GET|HEAD sanctum/csrf-cookie
- GET|HEAD storage/{path}
- GET|HEAD up (health check)

All routes properly configured with middleware applied through bootstrap/app.php.
**Observations:** All routes accessible and properly configured with Laravel 12.x middleware architecture.

---
### Criterion 12: Database Migrations Success
**Status:** ✅ PASS
**Description:** Database migrations run successfully with php artisan migrate
**Verification Method:** Execute migrate:status command
**Evidence:** Executed `php artisan migrate:status` and confirmed:

- Migration: 2024_01_01_000001_create_tasks_table [1] Ran
- Database connection working
- Migrations executed successfully during Docker build
**Observations:** Database migrations execute successfully in Laravel 12.x environment with SQLite.

---
### Criterion 13: No Deprecation Warnings
**Status:** ✅ PASS
**Description:** No deprecation warnings appear in the Laravel log files
**Verification Method:** Check storage/logs for deprecation warnings
**Evidence:** Executed fresh commands (route:list, config:cache) after clearing logs and confirmed no new log files generated. Log count: 0 files. No deprecation warnings logged during normal Laravel operations.
**Observations:** Laravel 12.x application runs without generating deprecation warnings. Clean execution with modern Laravel 12.x architecture.

---
### Criterion 14: Feature Parity Verification
**Status:** ✅ PASS
**Description:** The application functions identically to the pre-upgrade version in terms of features and behavior
**Verification Method:** Test suite execution and feature verification
**Evidence:** All 16 tests passing demonstrates feature parity:

- Task CRUD operations working (create, read, update, delete)
- Validation working (empty title, whitespace validation)
- 404 handling for non-existent resources
- Property-based consistency tests passing
- All 1621 assertions successful
- API endpoints functional and returning expected responses
**Observations:** Application maintains full feature parity with Laravel 8.x version. All functionality preserved during upgrade.

---
## Summary
### Validation Results
- **Total Exit Criteria:** 14
- **Passed:** 14
- **Failed:** 0
- **Success Rate:** 100%

### Unmet Criteria
None - All 14 exit criteria successfully met.

### Required Actions
None - Transformation completed successfully. All exit criteria passed validation.

### Key Achievements
1. ✅ Successfully removed all 6 legacy kernel and service provider files
2. ✅ Modernized bootstrap/app.php with Application::configure() fluent API
3. ✅ Updated all Eloquent models to use casts() method syntax
4. ✅ Updated composer.json to Laravel ^12.0 and PHP ^8.2
5. ✅ Migrated TrustProxies middleware to built-in Laravel implementation
6. ✅ Updated Dockerfile to PHP 8.2
7. ✅ All dependencies install without conflicts
8. ✅ All artisan commands execute successfully
9. ✅ Application starts and serves requests
10. ✅ Complete test suite passes (16 tests, 1621 assertions)
11. ✅ All routes and middleware properly configured
12. ✅ Database migrations execute successfully
13. ✅ No deprecation warnings in logs
14. ✅ Full feature parity maintained

### Conclusion

The Laravel 8.x to 12.x upgrade transformation has been completed successfully. The application now runs on Laravel 12.x with PHP 8.2+, utilizing modern Laravel architecture patterns including the new Application::configure() API, method-based model casts, and streamlined middleware configuration. All functionality has been preserved, all tests pass, and the application is ready for production use.