/**
 * 智能算法展示平台JavaScript SDK
 */

const axios = require('axios');

/**
 * 智能算法展示平台客户端类
 */
class AlgorithmShowcaseClient {
  /**
   * 初始化客户端
   * @param {string} baseUrl - API基础URL
   * @param {string} apiKey - API密钥
   */
  constructor(baseUrl = 'http://localhost:8000/api/v1', apiKey = null) {
    this.baseUrl = baseUrl.replace(/\/$/, '');
    this.apiKey = apiKey;
    
    // 创建axios实例
    this.client = axios.create({
      baseURL: this.baseUrl,
      headers: {
        'Content-Type': 'application/json'
      }
    });
    
    // 如果提供了API密钥，设置认证头
    if (this.apiKey) {
      this.client.defaults.headers.common['Authorization'] = `Bearer ${this.apiKey}`;
    }
  }
  
  /**
   * 获取算法列表
   * @param {string} type - 算法类型
   * @returns {Promise<Array>} 算法列表
   */
  async getAlgorithms(type = null) {
    try {
      const params = {};
      if (type) {
        params.type = type;
      }
      
      const response = await this.client.get('/algorithms', { params });
      return response.data.algorithms;
    } catch (error) {
      throw new Error(`获取算法列表失败: ${error.message}`);
    }
  }
  
  /**
   * 获取算法详情
   * @param {string} algorithmId - 算法ID
   * @returns {Promise<Object>} 算法详情
   */
  async getAlgorithm(algorithmId) {
    try {
      const response = await this.client.get(`/algorithms/${algorithmId}`);
      return response.data;
    } catch (error) {
      throw new Error(`获取算法详情失败: ${error.message}`);
    }
  }
  
  /**
   * 获取算法版本列表
   * @param {string} algorithmId - 算法ID
   * @returns {Promise<Array>} 版本列表
   */
  async getAlgorithmVersions(algorithmId) {
    try {
      const response = await this.client.get(`/algorithms/${algorithmId}/versions`);
      return response.data;
    } catch (error) {
      throw new Error(`获取算法版本列表失败: ${error.message}`);
    }
  }
  
  /**
   * 调用算法
   * @param {string} algorithmId - 算法ID
   * @param {string} versionId - 版本ID
   * @param {Object} inputData - 输入数据
   * @param {Object} params - 算法参数
   * @returns {Promise<Object>} 调用结果
   */
  async callAlgorithm(algorithmId, versionId, inputData, params = {}) {
    try {
      const response = await this.client.post('/algorithms/call', {
        algorithm_id: algorithmId,
        version_id: versionId,
        input_data: inputData,
        params: params
      });
      return response.data;
    } catch (error) {
      throw new Error(`调用算法失败: ${error.message}`);
    }
  }
  
  /**
   * 获取调用结果
   * @param {string} callId - 调用ID
   * @returns {Promise<Object>} 调用结果
   */
  async getCallResult(callId) {
    try {
      const response = await this.client.get(`/algorithms/calls/${callId}`);
      return response.data;
    } catch (error) {
      throw new Error(`获取调用结果失败: ${error.message}`);
    }
  }
  
  /**
   * 生成仿真输入数据
   * @param {string} prompt - 描述
   * @param {string} dataType - 数据类型
   * @returns {Promise<Object>} 生成的数据
   */
  async generateSimulationData(prompt, dataType = 'text') {
    try {
      const response = await this.client.post('/openai/generate-data', {
        prompt: prompt,
        data_type: dataType
      });
      return response.data;
    } catch (error) {
      throw new Error(`生成仿真数据失败: ${error.message}`);
    }
  }
  
  /**
   * 获取调用历史
   * @param {string} algorithmId - 算法ID
   * @param {string} status - 状态
   * @param {string} startDate - 开始日期
   * @param {string} endDate - 结束日期
   * @returns {Promise<Array>} 调用历史
   */
  async getCallHistory(algorithmId = null, status = null, startDate = null, endDate = null) {
    try {
      const params = {};
      if (algorithmId) params.algorithm_id = algorithmId;
      if (status) params.status = status;
      if (startDate) params.start_date = startDate;
      if (endDate) params.end_date = endDate;
      
      const response = await this.client.get('/history/user-calls', { params });
      return response.data.history;
    } catch (error) {
      throw new Error(`获取调用历史失败: ${error.message}`);
    }
  }
  
  /**
   * 获取调用统计
   * @param {string} algorithmId - 算法ID
   * @returns {Promise<Object>} 统计信息
   */
  async getCallStatistics(algorithmId = null) {
    try {
      const params = {};
      if (algorithmId) params.algorithm_id = algorithmId;
      
      const response = await this.client.get('/history/statistics', { params });
      return response.data;
    } catch (error) {
      throw new Error(`获取调用统计失败: ${error.message}`);
    }
  }
  
  /**
   * 导出历史记录
   * @param {string} algorithmId - 算法ID
   * @param {string} startDate - 开始日期
   * @param {string} endDate - 结束日期
   * @param {string} formatType - 导出格式
   * @returns {Promise<Object>} 导出结果
   */
  async exportHistory(algorithmId = null, startDate = null, endDate = null, formatType = 'json') {
    try {
      const params = {
        format_type: formatType
      };
      if (algorithmId) params.algorithm_id = algorithmId;
      if (startDate) params.start_date = startDate;
      if (endDate) params.end_date = endDate;
      
      const response = await this.client.get('/history/export', { params });
      return response.data;
    } catch (error) {
      throw new Error(`导出历史记录失败: ${error.message}`);
    }
  }
  
  /**
   * 获取算法性能指标
   * @param {string} algorithmId - 算法ID
   * @param {number} days - 统计天数
   * @returns {Promise<Object>} 性能指标
   */
  async getAlgorithmPerformance(algorithmId, days = 7) {
    try {
      const params = { days };
      const response = await this.client.get(`/monitoring/performance/algorithm/${algorithmId}`, { params });
      return response.data;
    } catch (error) {
      throw new Error(`获取算法性能指标失败: ${error.message}`);
    }
  }
  
  /**
   * 获取系统健康状况
   * @returns {Promise<Object>} 系统健康状况
   */
  async getSystemHealth() {
    try {
      const response = await this.client.get('/monitoring/health');
      return response.data;
    } catch (error) {
      throw new Error(`获取系统健康状况失败: ${error.message}`);
    }
  }
  
  /**
   * 检查权限
   * @param {string} algorithmId - 算法ID
   * @param {string} permissionType - 权限类型
   * @returns {Promise<boolean>} 是否有权限
   */
  async checkPermission(algorithmId, permissionType = 'execute') {
    try {
      const response = await this.client.post('/permissions/check', {
        algorithm_id: algorithmId,
        permission_type: permissionType
      });
      return response.data.has_permission;
    } catch (error) {
      throw new Error(`检查权限失败: ${error.message}`);
    }
  }
}

module.exports = AlgorithmShowcaseClient;
