<?php

declare(strict_types=1);

namespace Tests\Feature\Service;

use Override;
use Tests\TestCase;
use App\Entity\SystemConfig;
use App\Service\ConfigurationService;
use App\Repository\SystemConfigRepository;
use App\Enum\SystemSettingKey;
use InvalidArgumentException;

class ConfigurationServiceTest extends TestCase
{
    private ConfigurationService $service;
    private SystemConfigRepository $repository;

    #[Override]
    public function setUp(): void
    {
        parent::setUp();
        $this->setUpDB();
        $this->repository = $this->container->get(SystemConfigRepository::class);
        $this->service = $this->container->get(ConfigurationService::class);
    }

    public function testGetAllConfigs(): void
    {
        // Initially the repository should be empty
        $this->assertCount(0, $this->service->getAllConfigs());

        // Create some config entries
        $config1 = new SystemConfig('key1', 'value1');
        $config2 = new SystemConfig('key2', 'value2');
        $this->repository->save($config1);
        $this->repository->save($config2);

        // Now getAllConfigs should return both configs
        $configs = $this->service->getAllConfigs();
        $this->assertCount(2, $configs);
        $this->assertContainsOnlyInstancesOf(SystemConfig::class, $configs);
    }

    public function testGetConfigValue(): void
    {
        // Create a config
        $config = new SystemConfig('key1', 'value1');
        $this->repository->save($config);

        // Get value by key
        $value = $this->service->getConfigValue('key1');
        $this->assertEquals('value1', $value);

        // Get value for a non-existent key (should return default)
        $value = $this->service->getConfigValue('nonexistent', 'default');
        $this->assertEquals('default', $value);
    }

    public function testSetConfigValue(): void
    {
        // Initially the repository should be empty
        $this->assertCount(0, $this->service->getAllConfigs());

        // Set a value for a new key
        $this->service->setConfigValue('key1', 'value1');

        // Check that a new config was created
        $configs = $this->service->getAllConfigs();
        $this->assertCount(1, $configs);
        $config = $configs[0];
        $this->assertEquals('key1', $config->getKey());
        $this->assertEquals('value1', $config->getValue());

        // Set a value for an existing key
        $this->service->setConfigValue('key1', 'updated');

        // Check that the value was updated
        $config = $this->service->getConfigByKey('key1');
        $this->assertInstanceOf(SystemConfig::class, $config);
        $this->assertEquals('key1', $config->getKey());
        $this->assertEquals('updated', $config->getValue());
    }

    public function testGetConfigByKey(): void
    {
        // Create some configs
        $config1 = new SystemConfig('key1', 'value1');
        $config2 = new SystemConfig('key2', 'value2');
        $this->repository->save($config1);
        $this->repository->save($config2);

        // Find by key
        $foundConfig = $this->service->getConfigByKey('key1');
        $this->assertInstanceOf(SystemConfig::class, $foundConfig);
        $this->assertEquals('key1', $foundConfig->getKey());
        $this->assertEquals('value1', $foundConfig->getValue());

        // Try to find a non-existent key
        $this->assertNull($this->service->getConfigByKey('nonexistent'));
    }

    public function testCreateConfig(): void
    {
        // Create a new config
        $config = $this->service->createConfig('key1', 'value1');

        // Check that it was created correctly
        $this->assertInstanceOf(SystemConfig::class, $config);
        $this->assertEquals('key1', $config->getKey());
        $this->assertEquals('value1', $config->getValue());

        // Check that it's in the database
        $foundConfig = $this->service->getConfigByKey('key1');
        $this->assertInstanceOf(SystemConfig::class, $foundConfig);
        $this->assertEquals('key1', $foundConfig->getKey());
        $this->assertEquals('value1', $foundConfig->getValue());

        // Try to create a config with the same key (should throw an exception)
        $this->expectException(InvalidArgumentException::class);
        $this->service->createConfig('key1', 'value2');
    }

    public function testUpdateConfig(): void
    {
        // Create a config
        $config = $this->service->createConfig('key1', 'value1');

        // Update the value
        $updatedConfig = $this->service->updateConfig($config, null, 'updated');
        $this->assertEquals('key1', $updatedConfig->getKey());
        $this->assertEquals('updated', $updatedConfig->getValue());

        // Check that it was updated in the database
        $foundConfig = $this->service->getConfigByKey('key1');
        $this->assertEquals('updated', $foundConfig->getValue());

        // Update the key
        $updatedConfig = $this->service->updateConfig($config, 'newKey', null);
        $this->assertEquals('newKey', $updatedConfig->getKey());
        $this->assertEquals('updated', $updatedConfig->getValue());

        // Check that it was updated in the database
        $foundConfig = $this->service->getConfigByKey('newKey');
        $this->assertInstanceOf(SystemConfig::class, $foundConfig);
        $this->assertEquals('newKey', $foundConfig->getKey());
        $this->assertEquals('updated', $foundConfig->getValue());

        // Create another config
        $config2 = $this->service->createConfig('key2', 'value2');

        // Try to update the key to an existing key (should throw an exception)
        $this->expectException(InvalidArgumentException::class);
        $this->service->updateConfig($config2, 'newKey', null);
    }

    public function testDeleteConfig(): void
    {
        // Create a config
        $config = $this->service->createConfig('key1', 'value1');

        // Check that it exists
        $this->assertInstanceOf(SystemConfig::class, $this->service->getConfigByKey('key1'));

        // Delete it
        $this->service->deleteConfig($config);

        // Check that it's gone
        $this->assertNull($this->service->getConfigByKey('key1'));
    }

    public function testInitializeDefaultConfigs(): void
    {
        // Initially the repository should be empty
        $this->assertCount(0, $this->service->getAllConfigs());

        // Initialize default configs
        $this->service->initializeDefaultConfigs();

        // Check that the default configs were created
        $configs = $this->service->getAllConfigs();
        $this->assertGreaterThanOrEqual(3, count($configs)); // At least 3 default configs

        // Check specific default configs
        $lookbackOrders = $this->service->getConfigValue(SystemSettingKey::STOCK_ADJUSTMENT_LOOKBACK_ORDERS->value);
        $this->assertEquals('5', $lookbackOrders);

        $magnitude = $this->service->getConfigValue(SystemSettingKey::STOCK_ADJUSTMENT_MAGNITUDE->value);
        $this->assertEquals('0.2', $magnitude);

        $threshold = $this->service->getConfigValue(SystemSettingKey::STOCK_ADJUSTMENT_THRESHOLD->value);
        $this->assertEquals('0.1', $threshold);

        // Initialize again (should not create duplicates)
        $this->service->initializeDefaultConfigs();

        // Count should be the same
        $this->assertCount(count($configs), $this->service->getAllConfigs());
    }
}