<?php

declare(strict_types=1);

require __DIR__ . '/../../vendor/autoload.php';

use App\Framework\ErrorAggregation\ErrorAggregator;
use App\Framework\ErrorAggregation\Storage\InMemoryErrorStorage;
use App\Framework\Queue\InMemoryQueue;
use App\Framework\Cache\Cache;
use App\Framework\Cache\CacheIdentifier;
use App\Framework\Cache\CacheItem;
use App\Framework\Cache\CacheKey;
use App\Framework\Cache\CacheResult;
use App\Framework\Core\ValueObjects\Duration;
use App\Framework\DateTime\Clock;
use App\Framework\Core\ValueObjects\Timestamp;
use App\Framework\Exception\Core\DatabaseErrorCode;
use App\Framework\Exception\FrameworkException;
use App\Framework\Exception\ExceptionContext;
use App\Framework\Exception\RequestContext;
use App\Framework\Exception\SystemContext;
use App\Framework\Exception\ErrorHandlerContext;

// Create test cache
$cache = new class implements Cache {
    private array $data = [];

    public function get(CacheIdentifier ...$identifiers): CacheResult
    {
        $hits = [];
        $misses = [];
        foreach ($identifiers as $identifier) {
            $key = $identifier->toString();
            if (isset($this->data[$key])) {
                $value = $this->data[$key];
                $hits[$key] = $value instanceof CacheItem ? $value->value : $value;
            } else {
                $misses[] = $key;
            }
        }
        return new CacheResult($hits, $misses);
    }

    public function set(CacheItem ...$items): bool
    {
        foreach ($items as $item) {
            $this->data[$item->key->toString()] = $item;
        }
        return true;
    }

    public function has(CacheIdentifier ...$identifiers): array
    {
        $result = [];
        foreach ($identifiers as $identifier) {
            $key = (string) $identifier;
            $result[$key] = isset($this->data[$key]);
        }
        return $result;
    }

    public function forget(CacheIdentifier ...$identifiers): bool
    {
        foreach ($identifiers as $identifier) {
            $key = (string) $identifier;
            unset($this->data[$key]);
        }
        return true;
    }

    public function clear(): bool
    {
        $this->data = [];
        return true;
    }

    public function remember(CacheKey $key, callable $callback, ?Duration $ttl = null): CacheItem
    {
        $keyStr = $key->toString();
        if (isset($this->data[$keyStr])) {
            return $this->data[$keyStr];
        }
        $value = $callback();
        $item = CacheItem::forSetting($key, $value, $ttl);
        $this->data[$keyStr] = $item;
        return $item;
    }
};

// Create test clock
$clock = new class implements Clock {
    public function now(): \DateTimeImmutable { return new \DateTimeImmutable(); }
    public function fromTimestamp(Timestamp $timestamp): \DateTimeImmutable { return $timestamp->toDateTime(); }
    public function fromString(string $dateTime, ?string $format = null): \DateTimeImmutable { return new \DateTimeImmutable($dateTime); }
    public function today(): \DateTimeImmutable { return new \DateTimeImmutable('today'); }
    public function yesterday(): \DateTimeImmutable { return new \DateTimeImmutable('yesterday'); }
    public function tomorrow(): \DateTimeImmutable { return new \DateTimeImmutable('tomorrow'); }
    public function time(): Timestamp { return Timestamp::now(); }
};

echo "Creating ErrorAggregator...\n";
$storage = new InMemoryErrorStorage();
$alertQueue = new InMemoryQueue();

$errorAggregator = new ErrorAggregator(
    storage: $storage,
    cache: $cache,
    clock: $clock,
    alertQueue: $alertQueue
);

echo "Creating exception and context...\n";
$exception = FrameworkException::create(
    DatabaseErrorCode::QUERY_FAILED,
    'Test database query failed'
);

$exceptionContext = ExceptionContext::empty()
    ->withOperation('test_operation', 'TestComponent')
    ->withData(['test_key' => 'test_value']);

$requestContext = RequestContext::fromGlobals();
$systemContext = SystemContext::current();

$errorHandlerContext = ErrorHandlerContext::create(
    $exceptionContext,
    $requestContext,
    $systemContext,
    ['http_status' => 500]
);

echo "Processing error...\n";
try {
    $errorAggregator->processError($errorHandlerContext);
    echo "SUCCESS: Error processed without exception\n";
} catch (\Throwable $e) {
    echo "ERROR processing error: " . $e->getMessage() . "\n";
    echo "Stack trace:\n" . $e->getTraceAsString() . "\n";
}

echo "\nGetting recent events...\n";
$recentEvents = $errorAggregator->getRecentEvents(10);
echo "Recent events count: " . count($recentEvents) . "\n";

echo "\nGetting active patterns...\n";
$activePatterns = $errorAggregator->getActivePatterns(10);
echo "Active patterns count: " . count($activePatterns) . "\n";

if (count($recentEvents) > 0) {
    echo "\nFirst event details:\n";
    $event = $recentEvents[0];
    echo "  Error message: " . $event->errorMessage . "\n";
    echo "  Component: " . $event->component . "\n";
    echo "  Operation: " . $event->operation . "\n";
}

if (count($activePatterns) > 0) {
    echo "\nFirst pattern details:\n";
    $pattern = $activePatterns[0];
    echo "  Component: " . $pattern->component . "\n";
    echo "  Occurrence count: " . $pattern->occurrenceCount . "\n";
}
