import { getToken } from "../common/auth"
import { clearAllData } from "../common/auth"

// 可选后台服务器列表
export type ServerItem = {
  name: string
  url: string
}

export const SERVER_LIST: ServerItem[] = [
  { name: "正式 ssl (evmtapp.clenergy.com)", url: "https://evmtapp.clenergy.com:20096" } as ServerItem,
  { name: "测试  (47.107.245.120)", url: "http://47.107.245.120:30081" } as ServerItem,
  { name: "DEBUG (192.168.13.158)", url: "http://192.168.13.158:30081" } as ServerItem
]

let recordBaseUrl: string | null = null

// 读取当前后台服务器地址（内存 + 本地），未选择过则默认第一个
export function getBaseUrl(): string {
  if (recordBaseUrl != null && (recordBaseUrl as string).length > 0) {
    return recordBaseUrl as string
  }
  const t = uni.getStorageSync('serverBaseUrl') as string | null
  if (t != null && t.length > 0) {
    recordBaseUrl = t
    return t
  }
  return SERVER_LIST[0].url
}

// 保存后台服务器地址（内存 + 本地），下次启动直接加载
export function setBaseUrl(url: string) {
  recordBaseUrl = url
  uni.setStorageSync('serverBaseUrl', url)
}

export type HttpMethod = "GET" | "POST" | "PUT" | "DELETE"

// 请求参数类型
export type HttpRequest = {
  url: string
  method?: HttpMethod
  data?: any
  header?: UTSJSONObject  // 这里用 UTSJSONObject
}

// 封装请求
export function $http(params: HttpRequest): Promise<UTSJSONObject> {
  return new Promise((resolve, reject) => {

    // 1. 准备 header
    let baseHeader: UTSJSONObject = params.header ?? {} as UTSJSONObject
	
	baseHeader["Content-Type"] = "application/json"
	
    // 2. 读 token，有就加 Authorization
    const token = getToken()
    if (token != null && token.length > 0) {
		baseHeader["Authorization"] = token
    }
	// console.log("url = ", getBaseUrl() + params.url)
	// console.log("method = ", params.method)
	// console.log("data = ", params.data)
	// console.log("header = ", baseHeader)

    // 3. 发请求
    uni.request({
      url: getBaseUrl() + params.url,
      method: params.method ?? "GET",
      data: params.data ?? {} as UTSJSONObject,
      header: baseHeader,
      success: (res) => {
		  if(res.statusCode == 401) {
			  clearAllData()
			  uni.reLaunch({
			  	url: '/pages/login/login'
			  })
		  }
        const result: UTSJSONObject = {
          statusCode: res.statusCode,
          data: res.data 
        } as UTSJSONObject
        resolve(result)
      },
      fail: (err) => {
        reject(err)
      }
    })
  })
}