/**
 * H5版本的请求工具
 * 基于axios，兼容小程序的request接口
 * 依赖：common.js (提供公共工具函数)
 */

// 环境配置
const env = {
  baseUrl: 'https://m.hfdcschool.com'
  // baseUrl: 'https://yx.newfeifan.cn'
}

// Loading 管理器 (H5版本)
const loadingManager = {
  loadingCount: 0,
  loadingTimer: null,
  loadingElement: null,

  // 显示 loading
  show(options = {}) {
    const config = {
      title: '加载中...',
      mask: true,
      delay: 300,
      ...options
    }

    // 如果已经有 loading 在显示，只增加计数
    if (this.loadingCount > 0) {
      this.loadingCount++
      return
    }

    // 延迟显示，避免快速请求造成闪烁
    this.loadingTimer = setTimeout(() => {
      if (this.loadingCount > 0) {
        this.createLoadingElement(config.title)
      }
    }, config.delay)

    this.loadingCount++
  },

  // 创建Loading元素
  createLoadingElement(title) {
    if (this.loadingElement) return

    this.loadingElement = document.createElement('div')
    this.loadingElement.className = 'h5-loading-mask'
    this.loadingElement.innerHTML = `
      <div class="h5-loading-content">
        <div class="h5-loading-spinner"></div>
        <div class="h5-loading-text">${title}</div>
      </div>
    `

    // 添加样式
    const style = document.createElement('style')
    style.textContent = `
      .h5-loading-mask {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 10000;
      }
      .h5-loading-content {
        background: white;
        padding: 20px;
        border-radius: 8px;
        text-align: center;
        min-width: 120px;
      }
      .h5-loading-spinner {
        width: 30px;
        height: 30px;
        border: 3px solid #f3f3f3;
        border-top: 3px solid #40ac6d;
        border-radius: 50%;
        animation: h5-spin 1s linear infinite;
        margin: 0 auto 10px;
      }
      @keyframes h5-spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
      }
      .h5-loading-text {
        color: #333;
        font-size: 14px;
      }
    `
    document.head.appendChild(style)
    document.body.appendChild(this.loadingElement)
  },

  // 隐藏 loading
  hide() {
    this.loadingCount = Math.max(0, this.loadingCount - 1)

    if (this.loadingCount === 0) {
      // 清除延迟显示的定时器
      if (this.loadingTimer) {
        clearTimeout(this.loadingTimer)
        this.loadingTimer = null
      }

      // 移除 loading 元素
      if (this.loadingElement) {
        document.body.removeChild(this.loadingElement)
        this.loadingElement = null
      }
    }
  },

  // 强制隐藏所有 loading
  forceHide() {
    this.loadingCount = 0
    if (this.loadingTimer) {
      clearTimeout(this.loadingTimer)
      this.loadingTimer = null
    }
    if (this.loadingElement) {
      document.body.removeChild(this.loadingElement)
      this.loadingElement = null
    }
  }
}

// 注意：getUrlParams, getDeviceInfo, getJSessionId, saveJSessionId
// 这些函数已在 common.js 中定义，这里直接使用全局函数

const request = {
  async get(url, params = {}, options = {}) {
    return this.request(url, 'GET', params, options)
  },

  async post(url, data = {}, options = {}) {
    return this.request(url, 'POST', data, options)
  },

  async put(url, data = {}, options = {}) {
    return this.request(url, 'PUT', data, options)
  },

  async delete(url, data = {}, options = {}) {
    return this.request(url, 'DELETE', data, options)
  },
  
  async request(url, method, data, options = {}) {
    // 解析 loading 配置
    let loadingConfig
    if (options.loading === false) {
      loadingConfig = false
    } else {
      loadingConfig = {
        show: true,
        title: '加载中...',
        mask: true,
        delay: 300,
        timeout: 10000,
        ...(typeof options.loading === 'object' ? options.loading : {})
      }
    }

    // 解析请求配置
    const requestConfig = {
      timeout: 15000,
      ...options.request
    }

    const shouldShowLoading = loadingConfig !== false && loadingConfig.show !== false

    // 显示 loading
    if (shouldShowLoading) {
      loadingManager.show(loadingConfig)
    }

    // 获取设备信息
    const deviceInfo = getDeviceInfo()
    const devId = deviceInfo.deviceId || ''
    const sbmc = deviceInfo.model || ''

    // 处理URL，添加设备参数
    const separator = url.includes('?') ? '&' : '?'
    const finalUrl = `${url}${separator}devId=${devId}&sbmc=${sbmc}`

    // 超时处理
    let timeoutTimer = null
    if (shouldShowLoading && loadingConfig.timeout) {
      timeoutTimer = setTimeout(() => {
        loadingManager.hide()
        if (typeof showToastEffect !== 'undefined') {
          showToastEffect('请求超时', 3000, 'error')
        } else {
          // alert('请求超时')
        }
      }, loadingConfig.timeout)
    }

    try {
      // 配置axios请求
      const axiosConfig = {
        url: `${env.baseUrl}${finalUrl}`,
        method: method.toLowerCase(),
        timeout: requestConfig.timeout,
        headers: {}
      }


      // 处理请求数据
      if (method.toUpperCase() === 'GET') {
        axiosConfig.params = data
      } else {
        if (options.formData) {
          axiosConfig.headers['Content-Type'] = 'application/x-www-form-urlencoded'
          // 转换为表单格式
          const formData = new URLSearchParams()
          Object.keys(data).forEach(key => {
            formData.append(key, data[key])
          })
          axiosConfig.data = formData
        } else {
          axiosConfig.headers['Content-Type'] = 'application/json'
          axiosConfig.data = data
        }
      }

      // 发送请求
      const response = await axios(axiosConfig)

      // 清除超时定时器
      if (timeoutTimer) {
        clearTimeout(timeoutTimer)
      }

      // 检查服务器处理错误 
      if (response.data && response.data.msg && response.data.msg.includes('页面执行时错误')) {
        throw new Error('服务器处理错误');
      }

      // 检查没有服务授权 - 直接回到小程序
      if (response.data && response.data.msg && response.data.msg.includes('没有服务授权')) {
        handleH5NoServiceAuth(response.data.msg);
        throw new Error(response.data.msg);
      }
      

      // 检查登录过期 - 根据实际响应体格式
      if (response && (
        response.data.errorcode === 1 ||
        response.data.msg === '登录已失效，请重新登录' ||
        response.data.message === '登录过期' ||
        response.data.error === 'UNAUTHORIZED'
      )) {
        console.log('H5检测到登录过期，触发自动登录', response);
        handleH5LoginExpired();
        throw new Error(response.msg || '登录过期');
      }

      // 返回与小程序兼容的格式
      return {
        data: response.data
      }

    } catch (error) {
      
      // 清除超时定时器
      if (timeoutTimer) {
        clearTimeout(timeoutTimer)
      }
      // 处理错误
      let errorMessage = '请求失败'
      if (error.response) {
        errorMessage = `请求失败: ${error.response.status}`
      } else if (error.request) {
        errorMessage = '网络连接失败'
      } else {
        errorMessage = error.message || '未知错误'
      }

      if (typeof showToastEffect !== 'undefined') {
        showToastEffect(errorMessage, 3000, 'error')
      } else {
        // alert(errorMessage)
      }

      throw error
    } finally {
      // 隐藏 loading
      if (shouldShowLoading) {
        loadingManager.hide()
      }
    }
  }
}

// H5登录过期处理
const handleH5LoginExpired = () => {
  console.log('🔒 H5处理登录过期');

  // 获取yhsbToken，有token就自动登录，没有就跳转登录页
  const userInfo = localStorage.getItem('userInfo');
  let yhsbToken = '';

  if (userInfo) {
    try {
      const userData = JSON.parse(userInfo);
      yhsbToken = userData.yhsbToken;
    } catch (e) {
      console.error('解析用户信息失败:', e);
    }
  }

  if (yhsbToken) {
    // 直接调用自动登录接口（和自动登录页面一样的逻辑）
    request.post(
      `/service?ssServ=ss.login&wdConfirmationCaptchaService=0&mdToken=${yhsbToken}`,
      { mdToken: yhsbToken },
      { loading: false }
    ).then(response => {
      if (response && response.data) {
        console.log('✅ H5自动登录成功');

        // 构建用户数据（和自动登录页面一样）
        const userData = {
          devId: response.data.devId,
          sbmc: response.data.sbmc,
          sessId: response.data.sessId,
          userId: response.data.userId,
          xm: response.data.xm,
          yhsbToken: response.data.yhsbToken,
          onlineToken: response.data.onlineToken
        };

        // 保存用户信息到H5本地存储
        if (window.h5UserApi) {
          window.h5UserApi.saveUserInfo(userData);
        }

        // 通知小程序更新token
        if (typeof callNative === 'function') {
          callNative('loginSuccess', 'H5自动登录成功', {
            success: true,
            userInfo: userData,
            isAutoLogin: true
          });
        }

        // 刷新当前页面
        setTimeout(() => window.location.reload(), 1000);
      }
    }).catch(error => {
      console.error('❌ H5自动登录失败:', error);
      window.location.href = '/page/login.html?from=expired';
    });
  } else {
    console.log('⚠️ 未找到yhsbToken，跳转登录页面');
    window.location.href = '/page/login.html?from=expired';
  }
};

// H5没有服务授权处理
const handleH5NoServiceAuth = (errorMsg) => {

  // 显示错误提示
  if (typeof showToastEffect !== 'undefined') {
    // showToastEffect('没有服务授权，即将返回', 2000, 'error');
  } else {

  }

  // 延迟一下让用户看到提示，然后返回小程序
  setTimeout(() => {
    // 通知小程序返回
    if (typeof callNative === 'function') {
      callNative('noServiceAuth', '没有服务授权', {
        error: true,
        message: errorMsg,
        action: 'goBack'
      });
    } else {
      // 降级处理：直接关闭页面
      if (window.history.length > 1) {
        window.history.back();
      } else {
        window.close();
      }
    }
  }, 1500);
};

// 导出到全局
window.request = request
window.handleH5LoginExpired = handleH5LoginExpired
window.handleH5NoServiceAuth = handleH5NoServiceAuth

console.log('✅ H5 Request工具已加载')