// 上下文提取示例
interface ProjectContext {
  currentDSL: DSLDefinition; // 当前 DSL 定义
  vueComponents: VueComponent[]; // 现有 Vue 组件
  styleConfig: StyleConfig; // 样式配置
  dependencies: string[]; // 项目依赖
  userPreferences: UserPrefs; // 用户偏好设置
}

function extractContext(blockId: string): ProjectContext {
  // 从引擎中提取当前块的相关上下文
  return {
    currentDSL: engine.getCurrentDSL(blockId),
    vueComponents: engine.getComponentsInScope(blockId),
    styleConfig: styleSystem.getConfig(),
    dependencies: packageManager.getDependencies(),
    userPreferences: userConfig.getPreferences()
  };
}

// 代码验证逻辑
function validateGeneratedCode(vueCode: string): ValidationResult {
  const result: ValidationResult = {
    isValid: false,
    errors: [],
    warnings: [],
    parsedAST: null
  };

  try {
    // 语法检查
    const ast = parseVueSFC(vueCode);

    // 组件命名规范检查
    if (!isPascalCase(ast.componentName)) {
      result.warnings.push('组件名称建议使用 PascalCase 格式');
    }

    // 样式作用域检查
    if (ast.styles.some((style) => !style.scoped)) {
      result.warnings.push('建议为组件样式添加 scoped 属性');
    }

    // 依赖检查
    const missingDeps = checkDependencies(ast.imports);
    if (missingDeps.length > 0) {
      result.errors.push(`缺少依赖: ${missingDeps.join(', ')}`);
    }

    result.isValid = result.errors.length === 0;
    result.parsedAST = ast;
  } catch (error) {
    result.errors.push(`语法解析错误: ${error.message}`);
  }

  return result;
}

// 聊天补全核心逻辑
const chatCompletions = async (
  topicId: string,
  chatId: string,
  callback?: (data: any, done?: boolean) => void,
  error?: (err: any, cancel?: boolean) => void
) => {
  const controller = new AbortController();

  try {
    // 建立 SSE 连接
    const response = await fetch(API_ENDPOINT, {
      method: 'POST',
      signal: controller.signal,
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ topicId, chatId })
    });

    // 处理流式数据块
    const reader = response.body.getReader();
    const decoder = new TextDecoder();
    let buffer = '';

    while (true) {
      const { value, done } = await reader.read();
      if (done) break;

      buffer += decoder.decode(value, { stream: true });
      const lines = buffer.split('\n');

      for (const line of lines) {
        if (line.startsWith('data:')) {
          const data = JSON.parse(line.substring(5));
          callback(data, false);
        }
      }
    }

    callback(null, true); // 流处理完成
  } catch (err) {
    error(err, true); // 错误处理
  }
};

// 自动应用逻辑
function handleAutoApply(generatedCode) {
  if (config.autoApplyEnabled) {
    const dsl = vue2Dsl(generatedCode);
    if (validateDSL(dsl)) {
      engine.applyDSL(dsl);
    }
  }
}

// AI 配置示例 (config/ai.config.ts)
export const aiConfig = {
  // OpenAI 配置
  openai: {
    apiKey: process.env.OPENAI_API_KEY,
    model: 'gpt-4-turbo-preview',
    temperature: 0.7,
    maxTokens: 4000,
    timeout: 30000 // 30秒超时
  },

  // 本地模型配置
  local: {
    endpoint: 'http://localhost:11434/api/generate',
    model: 'codellama:13b',
    temperature: 0.5,
    contextWindow: 4096
  },

  // 图像识别配置
  vision: {
    provider: 'google-vision',
    apiKey: process.env.GOOGLE_VISION_API_KEY,
    features: ['TEXT_DETECTION', 'LABEL_DETECTION', 'OBJECT_LOCALIZATION']
  },

  // 通用设置
  general: {
    autoApply: true, // 自动应用验证通过的代码
    enableStreaming: true, // 启用流式响应
    maxRetries: 3, // 最大重试次数
    cacheDuration: 300000 // 缓存持续时间 (5分钟)
  }
};

// 监控指标收集示例
interface AIMetrics {
  requestId: string;
  inputType: 'text' | 'image' | 'json';
  processingTime: number;
  success: boolean;
  errorCode?: string;
  validationResult: ValidationResult;
  userFeedback?: number; // 1-5 评分
}