<?php

declare(strict_types=1);

namespace Tests\Unit\Framework\Logging;

use App\Framework\Logging\LogLevel;
use App\Framework\Logging\LogRecord;
use App\Framework\Logging\ValueObjects\LogContext;
use DateTimeImmutable;
use DateTimeZone;

beforeEach(function () {
    $this->timestamp = new DateTimeImmutable('2024-01-15 10:30:45', new DateTimeZone('Europe/Berlin'));
    $this->context = LogContext::withData(['user' => 'test', 'action' => 'login']);
});

it('can create a log record with required fields', function () {
    $record = new LogRecord(
        message: 'Test message',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    expect($record->getMessage())->toBe('Test message');
    expect($record->getLevel())->toBe(LogLevel::INFO);
    expect($record->getTimestamp())->toBe($this->timestamp);
    expect($record->getChannel())->toBeNull();
});

it('can create a log record with channel', function () {
    $record = new LogRecord(
        message: 'Database query executed',
        context: $this->context,
        level: LogLevel::DEBUG,
        timestamp: $this->timestamp,
        channel: 'database'
    );

    expect($record->getChannel())->toBe('database');
});

it('can modify message', function () {
    $record = new LogRecord(
        message: 'Original message',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $modified = $record->withMessage('Modified message');

    expect($modified->getMessage())->toBe('Modified message');
    expect($record->getMessage())->toBe('Original message'); // Original unverändert
});

it('can set channel after creation', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $withChannel = $record->withChannel('security');

    expect($withChannel->getChannel())->toBe('security');
    expect($record->getChannel())->toBeNull(); // Original unverändert
});

it('can format timestamp', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    expect($record->getFormattedTimestamp())->toBe('2024-01-15 10:30:45');
    expect($record->getFormattedTimestamp('Y-m-d'))->toBe('2024-01-15');
    expect($record->getFormattedTimestamp('H:i:s'))->toBe('10:30:45');
});

it('can add extra data', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $withExtra = $record->withExtra('request_id', 'req-123');
    $withBoth = $withExtra->withExtra('process_id', 5678);

    expect($withBoth->hasExtra('request_id'))->toBeTrue();
    expect($withBoth->getExtra('request_id'))->toBe('req-123');
    expect($withBoth->getExtra('process_id'))->toBe(5678);
    expect($withBoth->hasExtra('non_existent'))->toBeFalse();
    expect($record->hasExtra('request_id'))->toBeFalse(); // Original unverändert
});

it('can add multiple extras at once', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $extras = [
        'server' => 'web-01',
        'memory_usage' => 1024000,
        'execution_time' => 0.123,
    ];

    $withExtras = $record->withExtras($extras);

    expect($withExtras->getExtras())->toBe($extras);
    expect($withExtras->getExtra('server'))->toBe('web-01');
    expect($withExtras->getExtra('memory_usage'))->toBe(1024000);
    expect($withExtras->getExtra('execution_time'))->toBe(0.123);
    expect($record->getExtras())->toBe([]); // Original unverändert
});

it('returns default value for non-existent extra', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    expect($record->getExtra('missing'))->toBeNull();
    expect($record->getExtra('missing', 'default'))->toBe('default');
});

it('maintains fluent interface for setters', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $result = $record
        ->withMessage('New message')
        ->withChannel('custom')
        ->withExtra('key1', 'value1')
        ->withExtras(['key2' => 'value2']);

    expect($result)->not->toBe($record); // Neues Objekt
    expect($result->getMessage())->toBe('New message');
    expect($result->getChannel())->toBe('custom');
    expect($result->getExtra('key1'))->toBe('value1');
    expect($result->getExtra('key2'))->toBe('value2');
    expect($record->getMessage())->toBe('Test'); // Original unverändert
});

it('converts to array correctly', function () {
    $record = new LogRecord(
        message: 'Test message',
        context: $this->context,
        level: LogLevel::WARNING,
        timestamp: $this->timestamp,
        channel: 'test-channel'
    );

    $withExtra = $record->withExtra('request_id', 'req-456');

    $array = $withExtra->toArray();

    expect($array)->toHaveKeys([
        'message',
        'context',
        'level',
        'level_name',
        'timestamp',
        'datetime',
        'channel',
        'extra',
    ]);

    expect($array['message'])->toBe('Test message');
    expect($array['context'])->toMatchArray(['structured' => ['user' => 'test', 'action' => 'login']]);
    expect($array['level'])->toBe(LogLevel::WARNING->value);
    expect($array['level_name'])->toBe('WARNING');
    expect($array['timestamp'])->toBe('2024-01-15 10:30:45');
    expect($array['datetime'])->toBe($this->timestamp);
    expect($array['channel'])->toBe('test-channel');
    expect($array['extra'])->toBe(['request_id' => 'req-456']);
});

it('handles different log levels correctly', function () {
    $levels = [
        LogLevel::DEBUG,
        LogLevel::INFO,
        LogLevel::NOTICE,
        LogLevel::WARNING,
        LogLevel::ERROR,
        LogLevel::CRITICAL,
        LogLevel::ALERT,
        LogLevel::EMERGENCY,
    ];

    foreach ($levels as $level) {
        $record = new LogRecord(
            message: "Test {$level->getName()}",
            context: $this->context,
            level: $level,
            timestamp: $this->timestamp
        );

        expect($record->getLevel())->toBe($level);
        expect($record->toArray()['level'])->toBe($level->value);
        expect($record->toArray()['level_name'])->toBe($level->getName());
    }
});

it('preserves context as LogContext object', function () {
    $context = LogContext::withData(['test' => 'data'])
        ->addTags('important', 'audit');

    $record = new LogRecord(
        message: 'Test',
        context: $context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $contextArray = $record->getContext();
    expect($contextArray)->toMatchArray([
        'test' => 'data',
        '_tags' => ['important', 'audit'],
    ]);
});

it('can handle empty extras', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    expect($record->getExtras())->toBe([]);
    expect($record->hasExtra('any'))->toBeFalse();
});

it('overrides existing extras when adding with same key', function () {
    $record = new LogRecord(
        message: 'Test',
        context: $this->context,
        level: LogLevel::INFO,
        timestamp: $this->timestamp
    );

    $withOriginal = $record->withExtra('key', 'original');
    expect($withOriginal->getExtra('key'))->toBe('original');

    $withModified = $withOriginal->withExtra('key', 'modified');
    expect($withModified->getExtra('key'))->toBe('modified');
    expect($withOriginal->getExtra('key'))->toBe('original'); // Vorherige Version unverändert

    $withFinal = $withModified->withExtras(['key' => 'final']);
    expect($withFinal->getExtra('key'))->toBe('final');
    expect($withModified->getExtra('key'))->toBe('modified'); // Vorherige Version unverändert
});