<?php

declare(strict_types=1);

namespace SixShop\Wangdian\Tests\Unit\Services;

use PHPUnit\Framework\TestCase;
use SixShop\Wangdian\Client;
use SixShop\Wangdian\Services\BaseService;
use SixShop\Wangdian\Tests\TestConfig;

/**
 * Mock service for testing BaseService functionality
 */
class MockService extends BaseService
{
    public function testValidateRequired(array $params, array $required): void
    {
        $this->validateRequired($params, $required);
    }

    public function testFilterParams(array $params): array
    {
        return $this->filterParams($params);
    }

    public function testEncodeIfArray(mixed $value): mixed
    {
        return $this->encodeIfArray($value);
    }
}

class BaseServiceTest extends TestCase
{
    private MockService $service;

    protected function setUp(): void
    {
        $testConfig = TestConfig::get();
        
        // Create a minimal client mock for constructor
        $client = $this->getMockBuilder(Client::class)
            ->disableOriginalConstructor()
            ->getMock();
            
        $this->service = new MockService($client);
    }

    public function testConstructor(): void
    {
        $this->assertInstanceOf(BaseService::class, $this->service);
    }

    public function testValidateRequiredSuccess(): void
    {
        $params = [
            'required_field1' => 'value1',
            'required_field2' => 'value2',
            'optional_field' => 'optional_value'
        ];

        // Should not throw exception
        $this->service->testValidateRequired($params, ['required_field1', 'required_field2']);
        $this->assertTrue(true); // Assert that we reach this point
    }

    public function testValidateRequiredMissingField(): void
    {
        $params = [
            'required_field1' => 'value1',
            'optional_field' => 'optional_value'
        ];

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage("Required parameter 'required_field2' is missing or empty");

        $this->service->testValidateRequired($params, ['required_field1', 'required_field2']);
    }

    public function testValidateRequiredEmptyString(): void
    {
        $params = [
            'required_field1' => 'value1',
            'required_field2' => '',
        ];

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage("Required parameter 'required_field2' is missing or empty");

        $this->service->testValidateRequired($params, ['required_field1', 'required_field2']);
    }

    public function testValidateRequiredWhitespaceString(): void
    {
        $params = [
            'required_field1' => 'value1',
            'required_field2' => '   ',
        ];

        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage("Required parameter 'required_field2' is missing or empty");

        $this->service->testValidateRequired($params, ['required_field1', 'required_field2']);
    }

    public function testFilterParams(): void
    {
        $params = [
            'valid_param1' => 'value1',
            'valid_param2' => 'value2',
            'null_param' => null,
            'empty_string_param' => '',
            'zero_param' => 0,
            'false_param' => false,
            'valid_param3' => 'value3'
        ];

        $filtered = $this->service->testFilterParams($params);

        $expected = [
            'valid_param1' => 'value1',
            'valid_param2' => 'value2',
            'zero_param' => 0,
            'false_param' => false,
            'valid_param3' => 'value3'
        ];

        $this->assertEquals($expected, $filtered);
    }

    public function testEncodeIfArrayWithArray(): void
    {
        $array = ['key1' => 'value1', 'key2' => 'value2'];
        $result = $this->service->testEncodeIfArray($array);
        
        $this->assertIsString($result);
        $this->assertEquals('{"key1":"value1","key2":"value2"}', $result);
    }

    public function testEncodeIfArrayWithNestedArray(): void
    {
        $array = [
            'level1' => [
                'level2' => ['level3' => 'value']
            ]
        ];
        $result = $this->service->testEncodeIfArray($array);
        
        $this->assertIsString($result);
        $decoded = json_decode($result, true);
        $this->assertEquals($array, $decoded);
    }

    public function testEncodeIfArrayWithString(): void
    {
        $string = 'test_string';
        $result = $this->service->testEncodeIfArray($string);
        
        $this->assertEquals($string, $result);
        $this->assertIsString($result);
    }

    public function testEncodeIfArrayWithNumber(): void
    {
        $number = 12345;
        $result = $this->service->testEncodeIfArray($number);
        
        $this->assertEquals($number, $result);
        $this->assertIsInt($result);
    }

    public function testEncodeIfArrayWithNull(): void
    {
        $result = $this->service->testEncodeIfArray(null);
        
        $this->assertNull($result);
    }

    public function testEncodeIfArrayWithBoolean(): void
    {
        $result = $this->service->testEncodeIfArray(true);
        $this->assertTrue($result);
        
        $result = $this->service->testEncodeIfArray(false);
        $this->assertFalse($result);
    }

    public function testEncodeIfArrayWithUtf8(): void
    {
        $array = ['中文' => '测试', '数据' => ['嵌套' => '值']];
        $result = $this->service->testEncodeIfArray($array);
        
        $this->assertIsString($result);
        $this->assertStringContainsString('中文', $result);
        $this->assertStringContainsString('测试', $result);
        $decoded = json_decode($result, true);
        $this->assertEquals($array, $decoded);
    }
}