import axios from 'axios'
import { Loading, Message, MessageBox } from 'element-ui'
import store from '@/store'
import { getToken, removeToken } from '@/assets/js/utils/auth'
import router from '@/router'
import { logger } from 'runjs/lib/common'

import {
  decryptWithPrivateKey,
  encrypt,
  shouldEncrypt
} from '@/assets/js/utils/encrypt'

// create an axios instance
const service = axios.create({
  baseURL: '', // url = base url + request url
  timeout: 600000 // request timeout
})

let loading
function startLoading() {
  //使用Element loading-start 方法
  loading = Loading.service({
    target: '.render-container'
  })
}
function endLoading() {
  //使用Element loading-close 方法
  if (loading) {
    loading.close()
  }
}

let envInfo = process.env

// request interceptor
service.interceptors.request.use(
  config => {
    if (store.getters.token) {
      // config.headers['sid'] = getToken()
      config.headers['sysType'] = '3'
      config.headers['sid'] = getToken()
    }
    if (loading) {
      endLoading()
    }

    let deviceId = localStorage.getItem('deviceId')
    if (deviceId) {
      config.headers['deviceId'] = localStorage.getItem('deviceId')
    }
    if (envInfo.VUE_APP_USE_ENCRYPT === 'true') {
      // 3. 判断是否需要加密：跳过非 JSON 请求、OPTIONS 请求、自定义排除项
      const shouldSkipEncryption = () => {
        // 跳过 Content-Type 不是 application/json 的请求
        const contentType =
          config.headers['Content-Type'] || config.headers['content-type']
        if (contentType && !contentType.includes('application/json')) {
          return true
        }

        // // 跳过自定义标记不加密的请求 (在encrypt.js中已写这部分逻辑)
        const url = config.url
          .substring(config.url.lastIndexOf(':'))
          .substring(6)
        return !shouldEncrypt(url)
      }

      // 4. 执行加密逻辑
      if (!shouldSkipEncryption()) {
        // 添加加密标识（便于调试）
        config.headers['X-Encrypted'] = 'true'

        if (config.data) {
          // 保存原始数据用于调试
          config.originalData = config.data

          // 加密数据，包装成 { content: "encryptedString" }
          config.data = { content: encrypt(config.data, config.url) }
        }
      }
    }

    // config.type 可以从api的接口地址定义 可以不触发loading
    if (config.noLoading !== true) {
      startLoading()
    }
    return config
  },
  error => {
    return Promise.reject(error)
  }
)
// response interceptor
service.interceptors.response.use(
  response => {
    let res = response.data
    if (envInfo.VUE_APP_USE_ENCRYPT === 'true') {
      // 解密处理
      if (
        response.config.headers['X-Encrypted'] === 'true' &&
        typeof res === 'string'
      ) {
        try {
          res = decryptWithPrivateKey(res)
        } catch (e) {
          logger.error('解密响应失败', e)
        }
      }
      if (res !== '' && typeof res === 'string') {
        res = JSON.parse(res)
      }
    }
    endLoading()
    if (response.config.back) {
      return res
    }
    // 二进制数据则直接返回
    if (
      response.request.responseType === 'blob' ||
      response.request.responseType === 'arraybuffer'
    ) {
      return response.data
    }
    res.code = Number(res.code)
    if (res.code === 401) {
      MessageBox.confirm('登录状态已过期，请重新登录', '系统提示', {
        confirmButtonText: '重新登录',
        showCancelButton: false,
        type: 'warning'
      }).then(() => {
        removeToken()
        router.push({ path: '/login' })
      })
    } else if (res.code === 500) {
      Message({
        message: res.message,
        type: 'error',
        duration: 5 * 500
      })
      return Promise.reject(res)
    } else if (res.code !== 0) {
      Message({
        message:
          res.result ||
          res.message ||
          res.content.resultMessage ||
          '接口请求错误',
        type: 'error',
        duration: 5 * 1000
      })
      return Promise.reject(res)
    } else {
      if (!res.content.result || res.content.result !== '0') {
        Message({
          message: res.result || res.content.resultMessage || '接口请求错误',
          type: 'error',
          duration: 5 * 1000
        })
      } else {
        return res
      }
    }
  },
  error => {
    endLoading()
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 500
    })
    return
  }
)

export default service