<?php

declare(strict_types=1);

use App\Framework\Audit\AuditLogger;
use App\Framework\Audit\InMemoryAuditLogger;
use App\Framework\Audit\ValueObjects\AuditEntry;
use App\Framework\Audit\ValueObjects\AuditableAction;
use App\Framework\DateTime\Clock;
use App\Framework\ExceptionHandling\Audit\ExceptionAuditLogger;
use App\Framework\ExceptionHandling\Context\ExceptionContextData;
use App\Framework\ExceptionHandling\Context\ExceptionContextProvider;

describe('ExceptionAuditLogger', function () {
    beforeEach(function () {
        $this->auditLogger = new InMemoryAuditLogger();
        $this->clock = new class implements Clock {
            private DateTimeImmutable $now;

            public function __construct()
            {
                $this->now = new DateTimeImmutable('2024-01-01 12:00:00');
            }

            public function now(): DateTimeImmutable
            {
                return $this->now;
            }

            public function fromTimestamp(\App\Framework\Core\ValueObjects\Timestamp $timestamp): DateTimeImmutable
            {
                return DateTimeImmutable::createFromTimestamp($timestamp->value);
            }

            public function fromString(string $dateTime, ?string $format = null): DateTimeImmutable
            {
                return DateTimeImmutable::createFromFormat($format ?? 'Y-m-d H:i:s', $dateTime);
            }

            public function today(): DateTimeImmutable
            {
                return $this->now;
            }

            public function yesterday(): DateTimeImmutable
            {
                return $this->now->modify('-1 day');
            }

            public function tomorrow(): DateTimeImmutable
            {
                return $this->now->modify('+1 day');
            }

            public function time(): \App\Framework\Core\ValueObjects\Timestamp
            {
                return new \App\Framework\Core\ValueObjects\Timestamp($this->now->getTimestamp());
            }
        };
        $this->contextProvider = new ExceptionContextProvider();
        $this->exceptionAuditLogger = new ExceptionAuditLogger(
            $this->auditLogger,
            $this->clock,
            $this->contextProvider
        );
    });

    it('logs auditable exception as audit entry', function () {
        $exception = new RuntimeException('User not found');
        $context = ExceptionContextData::forOperation('user.lookup', 'UserRepository')
            ->addData(['user_id' => '123'])
            ->withUserId('user-456')
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        // Check that audit entry was created
        $entries = $this->getAllAuditEntries($this->auditLogger);
        expect($entries)->toHaveCount(1);

        $entry = $entries[0];
        expect($entry->success)->toBeFalse();
        expect($entry->errorMessage)->toBe('User not found');
        expect($entry->userId)->toBe('user-456');
        expect($entry->entityType)->toBe('userrepository');
        expect($entry->action)->toBeInstanceOf(AuditableAction::class);
    });

    it('does not log non-auditable exception', function () {
        $exception = new RuntimeException('Validation error');
        $context = ExceptionContextData::forOperation('validation.check')
            ->withAuditable(false);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        // Check that no audit entry was created
        $entries = $this->getAllAuditEntries($this->auditLogger);
        expect($entries)->toHaveCount(0);
    });

    it('logs exception without context as auditable by default', function () {
        $exception = new RuntimeException('Generic error');

        $this->exceptionAuditLogger->logIfAuditable($exception);

        // Check that audit entry was created (default: auditable)
        $entries = $this->getAllAuditEntries($this->auditLogger);
        expect($entries)->toHaveCount(1);
    });

    it('includes context data in audit entry metadata', function () {
        $exception = new RuntimeException('Operation failed');
        $context = ExceptionContextData::forOperation('order.process', 'OrderService')
            ->addData(['order_id' => 'order-789', 'amount' => 1000])
            ->withUserId('user-123')
            ->withRequestId('req-456')
            ->withTags('payment', 'external_api');

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        $entries = $this->getAllAuditEntries($this->auditLogger);
        $entry = $entries[0];

        expect($entry->metadata)->toHaveKey('operation');
        expect($entry->metadata['operation'])->toBe('order.process');
        expect($entry->metadata)->toHaveKey('component');
        expect($entry->metadata['component'])->toBe('OrderService');
        expect($entry->metadata)->toHaveKey('context_data');
        expect($entry->metadata['context_data']['order_id'])->toBe('order-789');
        expect($entry->metadata)->toHaveKey('tags');
        expect($entry->metadata['tags'])->toBe(['payment', 'external_api']);
    });

    it('determines audit action from operation name', function () {
        $testCases = [
            ['operation' => 'user.create', 'expected' => AuditableAction::CREATE],
            ['operation' => 'order.update', 'expected' => AuditableAction::UPDATE],
            ['operation' => 'product.delete', 'expected' => AuditableAction::DELETE],
            ['operation' => 'data.read', 'expected' => AuditableAction::READ],
        ];

        foreach ($testCases as $testCase) {
            $exception = new RuntimeException('Test');
            $context = ExceptionContextData::forOperation($testCase['operation'])
                ->withAuditable(true);

            $this->contextProvider->attach($exception, $context);
            $this->exceptionAuditLogger->logIfAuditable($exception);

            $entries = $this->getAllAuditEntries($this->auditLogger);
            $entry = end($entries);

            expect($entry->action)->toBe($testCase['expected']);
        }
    });

    it('extracts entity ID from context data', function () {
        $exception = new RuntimeException('Entity not found');
        $context = ExceptionContextData::forOperation('entity.get')
            ->addData(['entity_id' => 'entity-123'])
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        $entries = $this->getAllAuditEntries($this->auditLogger);
        $entry = $entries[0];

        expect($entry->entityId)->toBe('entity-123');
    });

    it('handles IP address and user agent from context with Value Objects', function () {
        $exception = new RuntimeException('Security violation');
        $context = ExceptionContextData::forOperation('security.check')
            ->withClientIp(\App\Framework\Http\IpAddress::from('192.168.1.1'))
            ->withUserAgent(\App\Framework\UserAgent\UserAgent::fromString('Mozilla/5.0'))
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        $entries = $this->getAllAuditEntries($this->auditLogger);
        $entry = $entries[0];

        expect($entry->ipAddress)->not->toBeNull();
        expect((string) $entry->ipAddress)->toBe('192.168.1.1');
        expect($entry->userAgent)->not->toBeNull();
        expect($entry->userAgent->value)->toBe('Mozilla/5.0');
    });

    it('handles IP address and user agent from context with strings (backward compatibility)', function () {
        $exception = new RuntimeException('Security violation');
        $context = ExceptionContextData::forOperation('security.check')
            ->withClientIp('192.168.1.1')
            ->withUserAgent('Mozilla/5.0')
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        $entries = $this->getAllAuditEntries($this->auditLogger);
        $entry = $entries[0];

        expect($entry->ipAddress)->not->toBeNull();
        expect((string) $entry->ipAddress)->toBe('192.168.1.1');
        expect($entry->userAgent)->not->toBeNull();
        expect($entry->userAgent->value)->toBe('Mozilla/5.0');
    });

    it('does not throw when audit logging fails', function () {
        $failingAuditLogger = new class implements AuditLogger {
            public function log(AuditEntry $entry): void
            {
                throw new RuntimeException('Audit logging failed');
            }

            public function find(\App\Framework\Audit\ValueObjects\AuditId $id): ?AuditEntry
            {
                return null;
            }

            public function query(\App\Framework\Audit\ValueObjects\AuditQuery $query): array
            {
                return [];
            }

            public function count(\App\Framework\Audit\ValueObjects\AuditQuery $query): int
            {
                return 0;
            }

            public function purgeOlderThan(DateTimeImmutable $date): int
            {
                return 0;
            }
        };

        $logger = new ExceptionAuditLogger(
            $failingAuditLogger,
            $this->clock,
            $this->contextProvider
        );

        $exception = new RuntimeException('Test error');
        $context = ExceptionContextData::forOperation('test')
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        // Should not throw
        expect(fn() => $logger->logIfAuditable($exception))->not->toThrow();
    });

    it('includes previous exception in metadata', function () {
        $previous = new InvalidArgumentException('Invalid input');
        $exception = new RuntimeException('Operation failed', 0, $previous);
        $context = ExceptionContextData::forOperation('operation.execute')
            ->withAuditable(true);

        $this->contextProvider->attach($exception, $context);

        $this->exceptionAuditLogger->logIfAuditable($exception);

        $entries = $this->getAllAuditEntries($this->auditLogger);
        $entry = $entries[0];

        expect($entry->metadata)->toHaveKey('previous_exception');
        expect($entry->metadata['previous_exception']['class'])->toBe(InvalidArgumentException::class);
        expect($entry->metadata['previous_exception']['message'])->toBe('Invalid input');
    });
});

/**
 * Helper to get all audit entries from InMemoryAuditLogger
 *
 * @return array<AuditEntry>
 */
function getAllAuditEntries(AuditLogger $logger): array
{
    if ($logger instanceof InMemoryAuditLogger) {
        // Use reflection to access private entries property
        $reflection = new ReflectionClass($logger);
        $property = $reflection->getProperty('entries');
        $property->setAccessible(true);
        return array_values($property->getValue($logger));
    }

    // For other implementations, query all entries
    $query = new \App\Framework\Audit\ValueObjects\AuditQuery();
    return $logger->query($query);
}