<?php

declare(strict_types=1);

namespace Tests\Framework\Discovery\Storage;

use App\Framework\Cache\Cache;
use App\Framework\Cache\CacheItem;
use App\Framework\Cache\Driver\InMemoryCache;
use App\Framework\Cache\GeneralCache;
use App\Framework\DateTime\SystemClock;
use App\Framework\Discovery\Results\AttributeRegistry;
use App\Framework\Discovery\Results\DiscoveryRegistry;
use App\Framework\Discovery\Results\InterfaceRegistry;
use App\Framework\Discovery\Results\TemplateRegistry;
use App\Framework\Discovery\Storage\DiscoveryCacheManager;
use App\Framework\Discovery\Storage\Services\CacheEntrySerializer;
use App\Framework\Discovery\Storage\Services\CacheEntryUpgrader;
use App\Framework\Discovery\Storage\Services\CacheEntryValidator;
use App\Framework\Discovery\Storage\Services\StalenessChecker;
use App\Framework\Core\ValueObjects\Timestamp;
use App\Framework\Discovery\Storage\ValueObjects\CacheEntry;
use App\Framework\Discovery\ValueObjects\CacheLevel;
use App\Framework\Discovery\ValueObjects\CacheTier;
use App\Framework\Discovery\ValueObjects\DiscoveryContext;
use App\Framework\Discovery\ValueObjects\DiscoveryOptions;
use App\Framework\Discovery\ValueObjects\ScanType;
use App\Framework\Filesystem\FileSystemService;
use App\Framework\Serializer\Php\PhpSerializer;
use App\Framework\Serializer\Php\PhpSerializerConfig;

describe('Debug: DiscoveryCacheManager Integration', function () {
    beforeEach(function () {
        $cacheDriver = new InMemoryCache();
        $serializer = new PhpSerializer(PhpSerializerConfig::safe());
        $this->cache = new GeneralCache($cacheDriver, $serializer);
        $this->clock = new SystemClock();
        $this->fileSystemService = new FileSystemService();

        // Use a real existing path with future time
        $basePath = file_exists('/var/www/html/src') ? '/var/www/html/src' : __DIR__ . '/../../../../src';
        
        // Use a future time to avoid stale detection
        $futureTime = new \DateTimeImmutable('2099-01-01 00:00:00');
        $this->testContext = new DiscoveryContext(
            paths: [$basePath],
            scanType: ScanType::FULL,
            options: new DiscoveryOptions(),
            startTime: $futureTime
        );

        $this->testRegistry = new DiscoveryRegistry(
            attributes: new AttributeRegistry(),
            interfaces: new InterfaceRegistry(),
            templates: new TemplateRegistry()
        );

        // Create cache manager with new services
        $this->cacheManager = new DiscoveryCacheManager(
            cache: $this->cache,
            clock: $this->clock,
            fileSystemService: $this->fileSystemService,
            serializer: new CacheEntrySerializer(),
            stalenessChecker: new StalenessChecker($this->fileSystemService),
            validator: new CacheEntryValidator(),
            upgrader: new CacheEntryUpgrader()
        );
    });

    it('debugs cache storage and retrieval flow', function () {
        // Step 1: Store
        $success = $this->cacheManager->store($this->testContext, $this->testRegistry);
        expect($success)->toBeTrue('Store should succeed');

        // Step 2: Check cache directly
        $key = $this->testContext->getCacheKey();
        $result = $this->cache->get($key);
        $item = $result->getItem($key);
        
        expect($item->isHit)->toBeTrue('Cache item should be hit');
        
        $cacheData = $item->value;
        expect(is_array($cacheData))->toBeTrue('Cache data should be array');
        expect(isset($cacheData['registry']))->toBeTrue('Cache should have registry');
        expect(isset($cacheData['startTime']))->toBeTrue('Cache should have startTime');
        expect(isset($cacheData['version']))->toBeTrue('Cache should have version');
        
        // Step 3: Test serializer supports
        $serializer = new CacheEntrySerializer();
        $supports = $serializer->supports($cacheData);
        expect($supports)->toBeTrue('Serializer should support cache data');
        
        // Step 4: Debug cache data structure
        expect($cacheData['startTime'])->not->toBeNull('startTime should not be null');
        expect(is_int($cacheData['startTime']))->toBeTrue('startTime should be int timestamp');
        
        // Step 5: Test deserialization
        try {
            $entry = $serializer->deserialize($cacheData);
            expect($entry)->toBeInstanceOf(CacheEntry::class, 'Deserialization should return CacheEntry');
            expect($entry->registry)->toBeInstanceOf(DiscoveryRegistry::class, 'Registry should be DiscoveryRegistry');
        } catch (\Throwable $e) {
            $this->fail("Deserialization failed: {$e->getMessage()}\nCache data keys: " . implode(', ', array_keys($cacheData)) . "\nstartTime type: " . gettype($cacheData['startTime'] ?? 'NOT SET'));
        }
        
        // Step 5: Test validator
        $validator = new CacheEntryValidator();
        $valid = $validator->validate($cacheData);
        expect($valid)->toBeTrue('Cache data should be valid');
        
        // Step 6: Test staleness checker
        $stalenessChecker = new StalenessChecker($this->fileSystemService);
        $stalenessCheck = $stalenessChecker->check($this->testContext, $entry);
        
        // Step 7: Finally test retrieval
        $cached = $this->cacheManager->get($this->testContext);
        
        if ($cached === null) {
            $this->fail("Retrieval returned null. Staleness check: " . ($stalenessCheck->isStale ? 'STALE' : 'FRESH'));
        }
        
        expect($cached)->toBeInstanceOf(DiscoveryRegistry::class);
    });
});