import { env, TIMEOUT } from '@/common/env.uts'

export type ApiResponse<T> = {
  code : number
  message : string
  data : T | null
}

export type RequestOptions = {
  url : string
  method ?: string
  data ?: UTSJSONObject | null
  header ?: UTSJSONObject | null
  showLoading ?: boolean
}

function getToken() : string {
  const token = uni.getStorageSync('token')
  if (token == null) return ''
  return token as string
}

export function request<T>(options : RequestOptions) : Promise<T> {
  return new Promise<T>((resolve, reject) => {
    const header : UTSJSONObject = options.header ?? {}
    header['Content-Type'] = 'application/json'
    const token = getToken()
    if (token.length > 0) {
      header['Authorization'] = 'Bearer ' + token
    }

    uni.request({
      url: env.baseUrl + options.url,
      method: options.method ?? 'GET',
      data: options.data,
      header: header,
      timeout: TIMEOUT,
      success: (res) => {
        const statusCode = res.statusCode
        if (statusCode >= 200 && statusCode < 300) {
          const body = res.data as UTSJSONObject
          const code = body.getNumber('code')
          if (code != null && code == 200) {
            resolve(body.get('data') as T)
          } else {
            const msg = body.getString('message') ?? '请求失败'
            uni.showToast({ title: msg, icon: 'none' })
            reject(new Error(msg))
          }
        } else {
          const msg = '网络错误 ' + statusCode
          uni.showToast({ title: msg, icon: 'none' })
          reject(new Error(msg))
        }
      },
      fail: (err) => {
        const msg = err.errMsg ?? '请求失败'
        uni.showToast({ title: msg, icon: 'none' })
        reject(new Error(msg))
      }
    })
  })
}

export function get<T>(url : string, data ?: UTSJSONObject | null) : Promise<T> {
  return request<T>({ url: url, method: 'GET', data: data })
}

export function post<T>(url : string, data ?: UTSJSONObject | null) : Promise<T> {
  return request<T>({ url: url, method: 'POST', data: data })
}