<?php

namespace SixShop\MakerBundle\Tests\Unit\Generator;

use PHPUnit\Framework\TestCase;
use SixShop\MakerBundle\Generator\ControllerGenerator;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class ControllerGeneratorTest extends TestCase
{
    private $controllerGenerator;
    private $io;
    private $testDir;

    protected function setUp(): void
    {
        $this->testDir = sys_get_temp_dir() . '/controller_test_' . uniqid();
        mkdir($this->testDir, 0777, true);
        
        // Create mock SymfonyStyle
        $this->io = $this->createMock(SymfonyStyle::class);
        
        $this->controllerGenerator = new ControllerGenerator();
    }

    protected function tearDown(): void
    {
        if (is_dir($this->testDir)) {
            $this->removeDirectory($this->testDir);
        }
    }

    private function removeDirectory($dir)
    {
        if (!is_dir($dir)) {
            return;
        }
        
        $items = scandir($dir);
        foreach ($items as $item) {
            if ($item != '.' && $item != '..') {
                $path = $dir . DIRECTORY_SEPARATOR . $item;
                if (is_dir($path)) {
                    $this->removeDirectory($path);
                } else {
                    unlink($path);
                }
            }
        }
        rmdir($dir);
    }

    public function testGenerateApiController()
    {
        $tableName = 'users';
        $tableComment = 'User management table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [
            ['name' => 'id', 'type' => 'integer'],
            ['name' => 'name', 'type' => 'string', 'length' => 255],
            ['name' => 'email', 'type' => 'string', 'length' => 255],
            ['name' => 'created_at', 'type' => 'datetime']
        ];

        $result = $this->controllerGenerator->generateControllers(
            $tableName,
            $tableComment,
            $fields,
            $extensionInfo,
            $this->testDir,
            $this->io
        );

        $this->assertTrue($result);

        $controllerPath = $this->testDir . '/src/Controller/Api/UserController.php';
        $this->assertFileExists($controllerPath);

        $content = file_get_contents($controllerPath);
        
        // Test namespace
        $this->assertStringContainsString('namespace TestExtension\Controller\Api;', $content);
        
        // Test class name
        $this->assertStringContainsString('class UserController', $content);
        
        // Test imports
        $this->assertStringContainsString('use SixShop\Core\Request;', $content);
        $this->assertStringContainsString('use TestExtension\Entity\UserEntity;', $content);
        
        // Test methods
        $this->assertStringContainsString('public function index(Request $request)', $content);
        $this->assertStringContainsString('public function show(Request $request)', $content);
        $this->assertStringContainsString('public function store(Request $request)', $content);
        $this->assertStringContainsString('public function update(Request $request)', $content);
        $this->assertStringContainsString('public function destroy(Request $request)', $content);
        
        // Test response helpers
        $this->assertStringContainsString('return page_response(', $content);
        $this->assertStringContainsString('return success_response(', $content);
    }

    public function testGenerateAdminController()
    {
        $tableName = 'products';
        $tableComment = 'Product management table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [
            ['name' => 'id', 'type' => 'integer'],
            ['name' => 'title', 'type' => 'string', 'length' => 255],
            ['name' => 'price', 'type' => 'decimal'],
            ['name' => 'status', 'type' => 'integer']
        ];

        $result = $this->controllerGenerator->generateControllers(
            $tableName,
            $tableComment,
            $fields,
            $extensionInfo,
            $this->testDir,
            $this->io
        );

        $this->assertTrue($result);

        $controllerPath = $this->testDir . '/src/Controller/Admin/ProductController.php';
        $this->assertFileExists($controllerPath);

        $content = file_get_contents($controllerPath);
        
        // Test namespace
        $this->assertStringContainsString('namespace TestExtension\Controller\Admin;', $content);
        
        // Test class name
        $this->assertStringContainsString('class ProductController', $content);
        
        // Test middleware usage
        $this->assertStringContainsString('use SixShop\Core\MacroPageMiddleware;', $content);
        
        // Test entity usage
        $this->assertStringContainsString('use TestExtension\Entity\ProductEntity;', $content);
        
        // Test methods
        $this->assertStringContainsString('public function index(Request $request)', $content);
        $this->assertStringContainsString('public function show(Request $request)', $content);
        $this->assertStringContainsString('public function store(Request $request)', $content);
        $this->assertStringContainsString('public function update(Request $request)', $content);
        $this->assertStringContainsString('public function destroy(Request $request)', $content);
    }

    public function testDirectoryCreation()
    {
        $tableName = 'categories';
        $tableComment = 'Category management table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [
            ['name' => 'id', 'type' => 'integer'], 
            ['name' => 'name', 'type' => 'string']
        ];

        // Generate both controllers
        $result = $this->controllerGenerator->generateControllers(
            $tableName,
            $tableComment,
            $fields,
            $extensionInfo,
            $this->testDir,
            $this->io
        );

        $this->assertTrue($result);

        // Test directory structure
        $this->assertDirectoryExists($this->testDir . '/src');
        $this->assertDirectoryExists($this->testDir . '/src/Controller');
        $this->assertDirectoryExists($this->testDir . '/src/Controller/Api');
        $this->assertDirectoryExists($this->testDir . '/src/Controller/Admin');
    }

    public function testControllerNaming()
    {
        $testCases = [
            'user_profiles' => 'UserProfileController',
            'product_categories' => 'ProductCategoryController',
            'orders' => 'OrderController',
            'blog_posts' => 'BlogPostController'
        ];

        foreach ($testCases as $tableName => $expectedClass) {
            $tableComment = 'Test table';
            $extensionInfo = [
                'namespace' => 'TestExtension',
                'name' => 'test-extension'
            ];
            $fields = [['name' => 'id', 'type' => 'integer']];

            $this->controllerGenerator->generateControllers(
                $tableName,
                $tableComment,
                $fields,
                $extensionInfo,
                $this->testDir,
                $this->io
            );

            $controllerPath = $this->testDir . '/src/Controller/Api/' . $expectedClass . '.php';
            $this->assertFileExists($controllerPath);

            $content = file_get_contents($controllerPath);
            $this->assertStringContainsString("class $expectedClass", $content);
            
            // Clean up for next iteration
            unlink($controllerPath);
        }
    }

    public function testValidationRulesGeneration()
    {
        $tableName = 'users';
        $tableComment = 'User table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [
            ['name' => 'id', 'type' => 'integer'],
            ['name' => 'name', 'type' => 'string', 'length' => 255],
            ['name' => 'email', 'type' => 'string', 'length' => 255],
            ['name' => 'age', 'type' => 'integer'],
            ['name' => 'price', 'type' => 'decimal'],
            ['name' => 'is_active', 'type' => 'boolean'],
            ['name' => 'created_at', 'type' => 'datetime']
        ];

        $this->controllerGenerator->generateControllers(
            $tableName,
            $tableComment,
            $fields,
            $extensionInfo,
            $this->testDir,
            $this->io
        );

        $controllerPath = $this->testDir . '/src/Controller/Api/UserController.php';
        $content = file_get_contents($controllerPath);
        
        // Test validation rules are present
        $this->assertStringContainsString('$rules = [', $content);
        $this->assertStringContainsString("'name' => 'required|string|max:255'", $content);
        $this->assertStringContainsString("'email' => 'required|string|max:255'", $content);
        $this->assertStringContainsString("'age' => 'integer'", $content);
        $this->assertStringContainsString("'price' => 'numeric'", $content);
        $this->assertStringContainsString("'is_active' => 'boolean'", $content);
    }

    public function testEntityMethodCalls()
    {
        $tableName = 'posts';
        $tableComment = 'Post table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [
            ['name' => 'id', 'type' => 'integer'],
            ['name' => 'title', 'type' => 'string'],
            ['name' => 'content', 'type' => 'text']
        ];

        $this->controllerGenerator->generateControllers(
            $tableName,
            $tableComment,
            $fields,
            $extensionInfo,
            $this->testDir,
            $this->io
        );

        $controllerPath = $this->testDir . '/src/Controller/Api/PostController.php';
        $content = file_get_contents($controllerPath);
        
        // Test entity method calls match expected patterns
        $this->assertStringContainsString('$entity->getList($page, $limit, $filters)', $content);
        $this->assertStringContainsString('$entity->getById($id)', $content);
        $this->assertStringContainsString('$entity->create($data)', $content);
        $this->assertStringContainsString('$entity->updateById($id, $data)', $content);
        $this->assertStringContainsString('$entity->deleteById($id)', $content);
    }

    public function testNamespaceHandling()
    {
        $tableName = 'users';
        $tableComment = 'User table';
        $fields = [
            ['name' => 'id', 'type' => 'integer'], 
            ['name' => 'name', 'type' => 'string']
        ];

        // Test different namespace formats
        $namespaces = [
            'SimpleExtension',
            'Complex\\Nested\\Extension',
            'CamelCase\\Extension'
        ];

        foreach ($namespaces as $namespace) {
            $extensionInfo = [
                'namespace' => $namespace,
                'name' => 'test-extension'
            ];
            
            $this->controllerGenerator->generateControllers(
                $tableName,
                $tableComment,
                $fields,
                $extensionInfo,
                $this->testDir,
                $this->io
            );

            $controllerPath = $this->testDir . '/src/Controller/Api/UserController.php';
            $content = file_get_contents($controllerPath);
            
            $this->assertStringContainsString("namespace $namespace\\Controller\\Api;", $content);
            $this->assertStringContainsString("use $namespace\\Entity\\UserEntity;", $content);
            
            // Clean up for next iteration
            unlink($controllerPath);
        }
    }

    public function testTemplateErrorHandling()
    {
        $tableName = 'users';
        $tableComment = 'User table';
        $extensionInfo = [
            'namespace' => 'TestExtension',
            'name' => 'test-extension'
        ];
        $fields = [['name' => 'id', 'type' => 'integer']];

        // Test with invalid directory (read-only)
        $readOnlyDir = '/tmp/readonly_test_' . uniqid();
        mkdir($readOnlyDir, 0444, true);

        try {
            $result = $this->controllerGenerator->generateControllers(
                $tableName,
                $tableComment,
                $fields,
                $extensionInfo,
                $readOnlyDir,
                $this->io
            );
            
            // Should return false due to permission issues
            $this->assertFalse($result);
        } catch (\Exception $e) {
            // This might throw an exception due to permission issues
            $this->assertInstanceOf(\Exception::class, $e);
        } finally {
            chmod($readOnlyDir, 0777);
            rmdir($readOnlyDir);
        }
    }
}