<?php

declare(strict_types=1);

use App\Framework\Core\ValueObjects\Duration;
use App\Framework\Redis\InvalidRedisTtlException;
use App\Framework\Redis\RedisConfig;
use App\Framework\Redis\RedisConnection;
use App\Framework\Redis\RedisKvStore;
use App\Framework\Serializer\Json\JsonSerializer;

beforeEach(function () {
    // Create Redis connection for testing
    $config = new RedisConfig(
        host: 'redis',
        port: 6379,
        database: 15  // Use separate database for tests
    );

    $this->connection = new RedisConnection($config, 'test');
    $this->serializer = new JsonSerializer();
    $this->store = new RedisKvStore($this->connection, $this->serializer);

    // Clean up before each test
    $this->connection->flush();
});

afterEach(function () {
    // Clean up after each test
    $this->connection->flush();
});

describe('Basic Operations', function () {
    it('can set and get string values', function () {
        $result = $this->store->set('test-key', 'test-value');

        expect($result)->toBeTrue();
        expect($this->store->get('test-key'))->toBe('test-value');
    });

    it('returns null for non-existent keys', function () {
        expect($this->store->get('non-existent'))->toBeNull();
    });

    it('can delete keys', function () {
        $this->store->set('key1', 'value1');
        $this->store->set('key2', 'value2');

        $deleted = $this->store->delete('key1', 'key2');

        expect($deleted)->toBe(2);
        expect($this->store->get('key1'))->toBeNull();
        expect($this->store->get('key2'))->toBeNull();
    });

    it('can check if keys exist', function () {
        $this->store->set('existing', 'value');

        expect($this->store->exists('existing'))->toBe(1);
        expect($this->store->exists('non-existent'))->toBe(0);
        expect($this->store->exists('existing', 'non-existent'))->toBe(1);
    });
});

describe('JSON Serialization', function () {
    it('automatically serializes arrays to JSON', function () {
        $data = ['name' => 'John', 'age' => 30, 'active' => true];

        $this->store->set('user', $data);
        $retrieved = $this->store->get('user');

        expect($retrieved)->toBe($data);
    });

    it('handles nested arrays', function () {
        $data = [
            'user' => ['name' => 'John', 'email' => 'john@example.com'],
            'settings' => ['theme' => 'dark', 'notifications' => true],
        ];

        $this->store->set('complex', $data);

        expect($this->store->get('complex'))->toBe($data);
    });

    it('handles numeric values', function () {
        $this->store->set('integer', 42);
        $this->store->set('float', 3.14);

        expect($this->store->get('integer'))->toBe('42');
        expect($this->store->get('float'))->toBe('3.14');
    });

    it('handles boolean values', function () {
        $this->store->set('true-val', true);
        $this->store->set('false-val', false);

        expect($this->store->get('true-val'))->toBe('1');
        expect($this->store->get('false-val'))->toBe('');
    });
});

describe('TTL Support', function () {
    it('can set expiration with Duration', function () {
        $this->store->set('expiring-key', 'value', Duration::fromSeconds(2));

        expect($this->store->get('expiring-key'))->toBe('value');

        // Check TTL is set
        $ttl = $this->store->ttl('expiring-key');
        expect($ttl)->toBeGreaterThan(0)->toBeLessThanOrEqual(2);
    });

    it('can set expiration with DateTimeInterface', function () {
        $expiration = new DateTimeImmutable('+5 seconds');
        $this->store->set('expiring-key', 'value', $expiration);

        $ttl = $this->store->ttl('expiring-key');
        expect($ttl)->toBeGreaterThan(0)->toBeLessThanOrEqual(5);
    });

    it('returns -1 for keys without expiration', function () {
        $this->store->set('permanent-key', 'value');

        expect($this->store->ttl('permanent-key'))->toBe(-1);
    });

    it('returns -2 for non-existent keys', function () {
        expect($this->store->ttl('non-existent'))->toBe(-2);
    });

    it('can set expiration on existing key', function () {
        $this->store->set('key', 'value');

        $result = $this->store->expire('key', Duration::fromSeconds(10));

        expect($result)->toBeTrue();
        expect($this->store->ttl('key'))->toBeGreaterThan(0);
    });

    it('throws exception for negative TTL', function () {
        expect(fn () => $this->store->set('key', 'value', Duration::fromSeconds(-10)))
            ->toThrow(InvalidRedisTtlException::class);
    });

    it('throws exception for zero TTL', function () {
        expect(fn () => $this->store->set('key', 'value', Duration::fromSeconds(0)))
            ->toThrow(InvalidRedisTtlException::class);
    });
});

describe('Increment/Decrement', function () {
    it('can increment numeric values', function () {
        $this->store->set('counter', '0');

        $newValue = $this->store->increment('counter');
        expect($newValue)->toBe(1);

        $newValue = $this->store->increment('counter', 5);
        expect($newValue)->toBe(6);
    });

    it('can decrement numeric values', function () {
        $this->store->set('counter', '10');

        $newValue = $this->store->decrement('counter');
        expect($newValue)->toBe(9);

        $newValue = $this->store->decrement('counter', 3);
        expect($newValue)->toBe(6);
    });

    it('initializes non-existent keys to 0 before incrementing', function () {
        $value = $this->store->increment('new-counter');

        expect($value)->toBe(1);
    });
});

describe('Multiple Operations', function () {
    it('can get multiple values at once', function () {
        $this->store->set('key1', 'value1');
        $this->store->set('key2', 'value2');
        $this->store->set('key3', 'value3');

        $values = $this->store->getMultiple('key1', 'key2', 'non-existent');

        expect($values)->toBe([
            'key1' => 'value1',
            'key2' => 'value2',
            'non-existent' => null,
        ]);
    });

    it('can set multiple values at once', function () {
        $result = $this->store->setMultiple([
            'user:1' => 'John',
            'user:2' => 'Jane',
            'user:3' => 'Bob',
        ]);

        expect($result)->toBeTrue();
        expect($this->store->get('user:1'))->toBe('John');
        expect($this->store->get('user:2'))->toBe('Jane');
        expect($this->store->get('user:3'))->toBe('Bob');
    });

    it('serializes complex data in multiple operations', function () {
        $this->store->setMultiple([
            'data1' => ['name' => 'John'],
            'data2' => ['name' => 'Jane'],
        ]);

        $values = $this->store->getMultiple('data1', 'data2');

        expect($values['data1'])->toBe(['name' => 'John']);
        expect($values['data2'])->toBe(['name' => 'Jane']);
    });
});

describe('Key Prefix', function () {
    it('applies prefix to all keys', function () {
        $storeWithPrefix = new RedisKvStore(
            $this->connection,
            $this->serializer,
            'test:'
        );

        $storeWithPrefix->set('mykey', 'myvalue');

        // Should not be accessible without prefix
        expect($this->store->get('mykey'))->toBeNull();

        // Should be accessible with prefix
        expect($storeWithPrefix->get('mykey'))->toBe('myvalue');

        // Verify actual Redis key has prefix
        expect($this->connection->get('test:mykey'))->toBe('myvalue');
    });

    it('applies prefix to delete operations', function () {
        $storeWithPrefix = new RedisKvStore(
            $this->connection,
            $this->serializer,
            'app:'
        );

        $storeWithPrefix->set('key1', 'value1');
        $storeWithPrefix->set('key2', 'value2');

        $deleted = $storeWithPrefix->delete('key1', 'key2');

        expect($deleted)->toBe(2);
        expect($this->connection->exists('app:key1', 'app:key2'))->toBe(0);
    });

    it('applies prefix to multiple operations', function () {
        $storeWithPrefix = new RedisKvStore(
            $this->connection,
            $this->serializer,
            'cache:'
        );

        $storeWithPrefix->setMultiple([
            'user:1' => 'John',
            'user:2' => 'Jane',
        ]);

        $values = $storeWithPrefix->getMultiple('user:1', 'user:2');

        expect($values)->toBe([
            'user:1' => 'John',
            'user:2' => 'Jane',
        ]);
    });
});

describe('Flush Operation', function () {
    it('can flush all keys in database', function () {
        $this->store->set('key1', 'value1');
        $this->store->set('key2', 'value2');
        $this->store->set('key3', 'value3');

        $this->store->flush();

        expect($this->store->get('key1'))->toBeNull();
        expect($this->store->get('key2'))->toBeNull();
        expect($this->store->get('key3'))->toBeNull();
    });
});