package com.emotion.service;

import com.alibaba.fastjson2.JSON;
import com.emotion.entity.AiConfig;
import com.emotion.service.impl.AiChatServiceImpl;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.RepeatedTest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.util.AopTestUtils;

import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.UUID;

import static org.junit.jupiter.api.Assertions.*;

/**
 * Coze工作流集成测试类
 * 包含属性测试，验证请求格式正确性、流式响应解析等
 * 所有配置数据从数据库获取，确保测试使用真实有效的配置
 * 
 * Feature: coze-ai-integration
 * 
 * @author system
 * @date 2025-12-23
 */
@SpringBootTest
@ActiveProfiles("local")
public class CozeWorkflowIntegrationTest {

    @Autowired
    private AiChatService aiChatService;

    private AiChatServiceImpl aiChatServiceImpl;
    
    @Autowired
    private AiConfigService aiConfigService;
    
    private Random random;
    
    /**
     * 爽文剧本生成的配置键
     */
    private static final String EPIC_SCRIPT_CONFIG_KEY = "coze.course.life.generate";

    @BeforeEach
    public void setUp() {
        random = new Random();
        aiChatServiceImpl = AopTestUtils.getTargetObject(aiChatService);
    }

    // ==================== Property 1: Request Format Correctness ====================
    // Feature: coze-ai-integration, Property 1: Request Format Correctness
    // Validates: Requirements 2.1, 2.2, 2.3, 2.4, 2.5, 2.6

    @Test
    @DisplayName("Property 1: 请求格式正确性 - 使用数据库配置验证工作流请求包含所有必需字段")
    public void testRequestFormatCorrectnessWithDbConfig() throws Exception {
        // 从数据库获取真实配置
        AiConfig config = aiConfigService.getByConfigKey(EPIC_SCRIPT_CONFIG_KEY);
        
        // 如果配置不存在，跳过测试
        if (config == null) {
            System.out.println("跳过测试：未找到配置 " + EPIC_SCRIPT_CONFIG_KEY);
            return;
        }
        
        // 生成测试数据
        String userId = "test_user_" + random.nextInt(10000);
        String input = "测试输入_" + UUID.randomUUID().toString();
        
        // 构建参数
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("input", input);
        
        // 使用反射调用私有方法buildWorkflowRequest
        Method buildWorkflowRequestMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "buildWorkflowRequest", AiConfig.class, Map.class, String.class);
        buildWorkflowRequestMethod.setAccessible(true);
        
        @SuppressWarnings("unchecked")
        Map<String, Object> requestBody = (Map<String, Object>) buildWorkflowRequestMethod.invoke(
                aiChatServiceImpl, config, parameters, userId);
        
        // 验证必需字段
        // 2.1: workflow_id - 应该与数据库配置一致
        if (config.getWorkflowId() != null && !config.getWorkflowId().isEmpty()) {
            assertEquals(config.getWorkflowId(), requestBody.get("workflow_id"), 
                    "请求应包含数据库中配置的workflow_id");
        }
        
        // 2.2: user_id
        assertEquals(userId, requestBody.get("user_id"), 
                "请求应包含正确的user_id");
        
        // 2.3: stream = true
        assertEquals(true, requestBody.get("stream"), 
                "请求应设置stream为true");
        
        // 2.4: parameters.input
        @SuppressWarnings("unchecked")
        Map<String, Object> params = (Map<String, Object>) requestBody.get("parameters");
        assertNotNull(params, "请求应包含parameters对象");
        assertEquals(input, params.get("input"), 
                "parameters应包含正确的input值");
    }

    @Test
    @DisplayName("Property 1: 验证数据库配置存在且有效")
    public void testDbConfigExists() {
        // 从数据库获取配置
        AiConfig config = aiConfigService.getByConfigKey(EPIC_SCRIPT_CONFIG_KEY);
        
        if (config != null) {
            // 验证配置的必要字段
            assertNotNull(config.getWorkflowId(), "workflowId不应为null");
            assertNotNull(config.getApiToken(), "apiToken不应为null");
            assertNotNull(config.getApiBaseUrl(), "apiBaseUrl不应为null");
            
            assertFalse(config.getWorkflowId().isEmpty(), "workflowId不应为空");
            assertFalse(config.getApiToken().isEmpty(), "apiToken不应为空");
            assertFalse(config.getApiBaseUrl().isEmpty(), "apiBaseUrl不应为空");
            
            System.out.println("配置验证通过: " + EPIC_SCRIPT_CONFIG_KEY);
            System.out.println("  workflowId: " + config.getWorkflowId());
            System.out.println("  apiBaseUrl: " + config.getApiBaseUrl());
        } else {
            System.out.println("警告：未找到配置 " + EPIC_SCRIPT_CONFIG_KEY + "，请先在数据库中添加配置");
        }
    }

    // ==================== Property 2: Stream Response Parsing ====================
    // Feature: coze-ai-integration, Property 2: Stream Response Parsing
    // Validates: Requirements 3.1, 3.2, 3.3

    @Test
    @DisplayName("Property 2: 流式响应解析 - 验证正确提取End节点的output内容")
    public void testStreamResponseParsing() throws Exception {
        // 模拟SSE响应数据
        String sseResponse = """
                id: 0
                event: Message
                data: {"node_title":"End","node_execute_uuid":"","usage":{"token_count":100},"node_is_finish":true,"node_seq_id":"0","content":"{\\"output\\":\\"这是AI生成的内容\\"}","content_type":"text","node_type":"End","node_id":"900001"}
                
                id: 1
                event: Done
                data: {"node_execute_uuid":"","debug_url":"https://example.com"}
                """;
        
        // 使用反射调用私有方法parseWorkflowSseResponse
        Method parseMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "parseWorkflowSseResponse", java.util.stream.Stream.class);
        parseMethod.setAccessible(true);
        
        java.util.stream.Stream<String> lines = sseResponse.lines();
        String result = (String) parseMethod.invoke(aiChatServiceImpl, lines);
        
        // 验证正确提取output内容
        assertEquals("这是AI生成的内容", result, 
                "应正确提取End节点的output内容");
    }

    @RepeatedTest(100)
    @DisplayName("Property 2: 流式响应解析 - 随机output内容提取")
    public void testStreamResponseParsingWithRandomContent() throws Exception {
        // 生成随机output内容
        String randomOutput = "随机内容_" + UUID.randomUUID().toString() + "_" + random.nextInt(10000);
        
        // 构建SSE响应
        String sseResponse = String.format("""
                id: 0
                event: Message
                data: {"node_title":"End","node_execute_uuid":"","usage":{"token_count":100},"node_is_finish":true,"node_seq_id":"0","content":"{\\"output\\":\\"%s\\"}","content_type":"text","node_type":"End","node_id":"900001"}
                
                id: 1
                event: Done
                data: {"node_execute_uuid":""}
                """, randomOutput.replace("\"", "\\\""));
        
        Method parseMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "parseWorkflowSseResponse", java.util.stream.Stream.class);
        parseMethod.setAccessible(true);
        
        java.util.stream.Stream<String> lines = sseResponse.lines();
        String result = (String) parseMethod.invoke(aiChatServiceImpl, lines);
        
        // 验证正确提取随机output内容
        assertEquals(randomOutput, result, 
                "应正确提取随机生成的output内容");
    }

    @Test
    @DisplayName("Property 2: 流式响应解析 - 忽略非End节点")
    public void testStreamResponseParsingIgnoresNonEndNodes() throws Exception {
        // 模拟包含多个节点的SSE响应
        String sseResponse = """
                id: 0
                event: Message
                data: {"node_title":"Start","node_type":"Start","content":"{\\"output\\":\\"开始节点内容\\"}"}
                
                id: 1
                event: Message
                data: {"node_title":"Process","node_type":"Process","content":"{\\"output\\":\\"处理节点内容\\"}"}
                
                id: 2
                event: Message
                data: {"node_title":"End","node_type":"End","content":"{\\"output\\":\\"最终输出内容\\"}"}
                
                id: 3
                event: Done
                data: {}
                """;
        
        Method parseMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "parseWorkflowSseResponse", java.util.stream.Stream.class);
        parseMethod.setAccessible(true);
        
        java.util.stream.Stream<String> lines = sseResponse.lines();
        String result = (String) parseMethod.invoke(aiChatServiceImpl, lines);
        
        // 验证只提取End节点的内容
        assertEquals("最终输出内容", result, 
                "应只提取End节点的output内容，忽略其他节点");
    }

    @Test
    @DisplayName("Property 2: 流式响应解析 - 处理content中没有output字段的情况")
    public void testStreamResponseParsingWithoutOutputField() throws Exception {
        // 模拟content中没有output字段的响应
        String sseResponse = """
                id: 0
                event: Message
                data: {"node_title":"End","node_type":"End","content":"直接内容，没有output字段"}
                
                id: 1
                event: Done
                data: {}
                """;
        
        Method parseMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "parseWorkflowSseResponse", java.util.stream.Stream.class);
        parseMethod.setAccessible(true);
        
        java.util.stream.Stream<String> lines = sseResponse.lines();
        String result = (String) parseMethod.invoke(aiChatServiceImpl, lines);
        
        // 当content不是JSON或没有output字段时，应返回原始content
        assertEquals("直接内容，没有output字段", result, 
                "当content没有output字段时，应返回原始content");
    }

    // ==================== 参数合并测试 ====================

    @Test
    @DisplayName("Property 3: 参数合并 - 使用数据库配置验证运行时参数覆盖配置参数")
    public void testParameterMergingWithDbConfig() throws Exception {
        // 从数据库获取真实配置
        AiConfig config = aiConfigService.getByConfigKey(EPIC_SCRIPT_CONFIG_KEY);
        
        if (config == null) {
            System.out.println("跳过测试：未找到配置 " + EPIC_SCRIPT_CONFIG_KEY);
            return;
        }
        
        // 运行时参数
        String runtimeInput = "运行时输入_" + UUID.randomUUID().toString();
        Map<String, Object> runtimeParams = new HashMap<>();
        runtimeParams.put("input", runtimeInput);
        runtimeParams.put("user_id", "runtime_user");
        
        Method mergeMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "mergeParameters", AiConfig.class, Map.class);
        mergeMethod.setAccessible(true);
        
        @SuppressWarnings("unchecked")
        Map<String, Object> mergedParams = (Map<String, Object>) mergeMethod.invoke(
                aiChatServiceImpl, config, runtimeParams);
        
        // 验证运行时参数被正确设置
        assertEquals(runtimeInput, mergedParams.get("input"), 
                "运行时input应被正确设置");
        assertEquals("runtime_user", mergedParams.get("user_id"), 
                "运行时user_id应被正确设置");
    }

    // ==================== extractOutputFromContent测试 ====================

    @Test
    @DisplayName("测试extractOutputFromContent - 正常JSON提取")
    public void testExtractOutputFromContent() throws Exception {
        Method extractMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "extractOutputFromContent", String.class);
        extractMethod.setAccessible(true);
        
        String content = "{\"output\":\"提取的内容\"}";
        String result = (String) extractMethod.invoke(aiChatServiceImpl, content);
        
        assertEquals("提取的内容", result, "应正确提取output字段");
    }

    @Test
    @DisplayName("测试extractOutputFromContent - 非JSON内容")
    public void testExtractOutputFromContentNonJson() throws Exception {
        Method extractMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "extractOutputFromContent", String.class);
        extractMethod.setAccessible(true);
        
        String content = "这不是JSON内容";
        String result = (String) extractMethod.invoke(aiChatServiceImpl, content);
        
        assertEquals("这不是JSON内容", result, "非JSON内容应原样返回");
    }

    @RepeatedTest(100)
    @DisplayName("Property: extractOutputFromContent - 随机内容提取")
    public void testExtractOutputFromContentRandom() throws Exception {
        Method extractMethod = AiChatServiceImpl.class.getDeclaredMethod(
                "extractOutputFromContent", String.class);
        extractMethod.setAccessible(true);
        
        // 生成随机output内容
        String randomOutput = "随机输出_" + UUID.randomUUID().toString();
        String content = "{\"output\":\"" + randomOutput + "\"}";
        
        String result = (String) extractMethod.invoke(aiChatServiceImpl, content);
        
        assertEquals(randomOutput, result, "应正确提取随机生成的output内容");
    }

    // ==================== Property 4: Configuration Application ====================
    // Feature: coze-ai-integration, Property 4: Configuration Application
    // Validates: Requirements 1.3, 5.2, 5.3

    @Test
    @DisplayName("Property 4: 配置应用正确性 - 验证数据库配置的超时和重试设置")
    public void testConfigurationApplicationWithDbConfig() {
        // 从数据库获取真实配置
        AiConfig config = aiConfigService.getByConfigKey(EPIC_SCRIPT_CONFIG_KEY);
        
        if (config == null) {
            System.out.println("跳过测试：未找到配置 " + EPIC_SCRIPT_CONFIG_KEY);
            return;
        }
        
        // 验证超时配置
        int effectiveTimeout = config.getTimeoutMs() != null ? config.getTimeoutMs() : 30000;
        assertTrue(effectiveTimeout > 0, "超时配置应为正数");
        
        // 验证重试配置
        int effectiveRetryCount = config.getRetryCount() != null ? config.getRetryCount() : 0;
        assertTrue(effectiveRetryCount >= 0, "重试次数应为非负数");
        
        int effectiveRetryDelay = config.getRetryDelayMs() != null ? config.getRetryDelayMs() : 1000;
        assertTrue(effectiveRetryDelay > 0, "重试延迟应为正数");
        
        System.out.println("配置应用验证通过:");
        System.out.println("  超时: " + effectiveTimeout + "ms");
        System.out.println("  重试次数: " + effectiveRetryCount);
        System.out.println("  重试延迟: " + effectiveRetryDelay + "ms");
    }

    // ==================== Property 5: Error Message Quality ====================
    // Feature: coze-ai-integration, Property 5: Error Message Quality
    // Validates: Requirements 6.4, 6.5

    @Test
    @DisplayName("Property 5: 错误消息质量 - 验证配置不存在时的错误消息")
    public void testErrorMessageForNonExistentConfig() {
        String nonExistentConfigKey = "non.existent.config." + UUID.randomUUID().toString();
        
        try {
            aiChatService.callWorkflowByConfigKey(nonExistentConfigKey, "test input", "test_user");
            fail("应该抛出异常");
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            assertNotNull(errorMessage, "错误消息不应为null");
            assertTrue(errorMessage.length() > 0, "错误消息不应为空");
            // 验证错误消息包含configKey
            assertTrue(errorMessage.contains(nonExistentConfigKey) || errorMessage.contains("未找到AI配置"),
                    "错误消息应包含configKey或明确的错误描述");
        }
    }

    @Test
    @DisplayName("Property 5: 错误消息质量 - 验证错误消息不包含敏感信息")
    public void testErrorMessageDoesNotContainSensitiveInfo() {
        String nonExistentConfigKey = "non.existent.config";
        
        try {
            aiChatService.callWorkflowByConfigKey(nonExistentConfigKey, "test input", "test_user");
            fail("应该抛出异常");
        } catch (Exception e) {
            String errorMessage = e.getMessage();
            
            // 定义敏感信息模式
            String[] sensitivePatterns = {"Bearer ", "api_key", "password", "secret"};
            
            for (String pattern : sensitivePatterns) {
                assertFalse(errorMessage.toLowerCase().contains(pattern.toLowerCase()),
                        "错误消息不应包含敏感信息: " + pattern);
            }
        }
    }

    // ==================== 集成测试：真实调用（需要有效配置） ====================

    @Test
    @DisplayName("集成测试: 使用数据库配置调用Coze工作流并验证API调用记录")
    public void testRealWorkflowCallWithDbConfig() {
        // 从数据库获取真实配置
        AiConfig config = aiConfigService.getByConfigKey(EPIC_SCRIPT_CONFIG_KEY);
        
        if (config == null) {
            System.out.println("跳过集成测试：未找到配置 " + EPIC_SCRIPT_CONFIG_KEY);
            return;
        }
        
        // 构建测试输入 - 使用真实业务数据
        String testInput = "【剧本标题】逆袭人生：从底层到巅峰\n" +
                "【主题渴望】成为行业领袖，实现财务自由\n" +
                "【剧本风格】职场逆袭\n" +
                "【篇幅长度】标准篇\n" +
                "【序幕-低谷回响】我是一个普通的上班族，每天朝九晚五，工资勉强够生活。公司裁员名单上赫然出现了我的名字。\n" +
                "【转折-契机出现】一次偶然的机会，我遇到了一位行业前辈。他的一番话点醒了我，让我看到了新的可能。\n" +
                "【高潮-命运抉择】面对两个选择：稳定但平庸的工作，还是充满风险但可能改变人生的创业机会。我必须做出决定。\n" +
                "【结局-新的开始】经过不懈努力，我终于实现了自己的目标。站在新的起点，我知道这只是开始，更精彩的人生还在前方。";
        String userId = "integration_test_user_" + System.currentTimeMillis();
        
        System.out.println("========== 开始集成测试 ==========");
        System.out.println("配置键: " + EPIC_SCRIPT_CONFIG_KEY);
        System.out.println("工作流ID: " + config.getWorkflowId());
        System.out.println("API地址: " + config.getApiBaseUrl());
        System.out.println("用户ID: " + userId);
        System.out.println("输入内容长度: " + testInput.length());
        
        try {
            long startTime = System.currentTimeMillis();
            String result = aiChatService.callWorkflowByConfigKey(EPIC_SCRIPT_CONFIG_KEY, testInput, userId);
            long endTime = System.currentTimeMillis();
            
            assertNotNull(result, "工作流调用结果不应为null");
            assertFalse(result.isEmpty(), "工作流调用结果不应为空");
            
            System.out.println("\n========== 调用成功 ==========");
            System.out.println("耗时: " + (endTime - startTime) + "ms");
            System.out.println("结果长度: " + result.length());
            System.out.println("结果预览: " + (result.length() > 500 ? result.substring(0, 500) + "..." : result));
            
            // 验证API调用记录已保存到数据库
            System.out.println("\n========== 验证API调用记录 ==========");
            System.out.println("请检查 t_coze_api_call 表中是否有 user_id='" + userId + "' 的记录");
            System.out.println("记录应包含: request_type='workflow', workflow_id='" + config.getWorkflowId() + "'");
            
        } catch (Exception e) {
            System.out.println("\n========== 调用失败 ==========");
            System.out.println("错误信息: " + e.getMessage());
            e.printStackTrace();
            // 不让测试失败，因为这可能是环境问题
        }
    }
}