<?php

namespace App\Http\Controllers\Api\System;

use App\Http\Controllers\Controller;
use App\Services\CompressionService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class CompressionTestController extends Controller
{
    /**
     * Test compression with large dataset
     */
    public function test(Request $request): JsonResponse
    {
        // Generate large test data
        $testData = [
            'message' => 'Compression test response',
            'timestamp' => now()->toISOString(),
            'client_capabilities' => CompressionService::getClientCapabilities($request),
            'large_data' => $this->generateTestData(),
            'meta' => [
                'total_items' => 1000,
                'page' => 1,
                'per_page' => 50,
                'compression_enabled' => true,
            ]
        ];

        $content = json_encode($testData);
        $compressionInfo = CompressionService::getCompressionInfo($content);

        return response()->json([
            'success' => true,
            'data' => $testData,
            'compression_analysis' => $compressionInfo,
            'response_size' => CompressionService::formatBytes(strlen($content))
        ]);
    }

    /**
     * Get compression statistics
     */
    public function stats(Request $request): JsonResponse
    {
        return response()->json([
            'client_capabilities' => CompressionService::getClientCapabilities($request),
            'server_capabilities' => [
                'gzip' => function_exists('gzencode'),
                'deflate' => function_exists('gzdeflate'),
                'brotli' => function_exists('brotli_compress'),
            ],
            'middleware_enabled' => true,
            'min_compression_size' => '1KB',
            'compression_level' => 6,
        ]);
    }

    /**
     * Generate large test data for compression testing
     */
    private function generateTestData(): array
    {
        $data = [];
        
        // Generate repeated patterns that compress well
        for ($i = 1; $i <= 100; $i++) {
            $data[] = [
                'id' => $i,
                'name' => "Test Item Number {$i}",
                'description' => 'This is a test description that contains repetitive text to demonstrate compression effectiveness. Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
                'status' => $i % 2 === 0 ? 'active' : 'inactive',
                'created_at' => now()->subDays($i)->toISOString(),
                'metadata' => [
                    'category' => 'test-category-' . ($i % 5),
                    'tags' => ['test', 'compression', 'api', 'laravel'],
                    'properties' => [
                        'property_1' => 'Repeated property value',
                        'property_2' => 'Another repeated property value',
                        'property_3' => 'Yet another repeated property value',
                    ]
                ]
            ];
        }
        
        return $data;
    }
}