import {BASE_URL, WX_APPID } from "@/common/constant"
import Taro, { useRouter } from "@tarojs/taro"
import { useRef, useState } from "react"
import  qs from 'qs'
import useUserInfo from "./useUserInfo"

//开这个hook 主要是为了让useHttp 能够调用

type Param = {success: true|false, data: any, msg: string, code: null|number, loading: false|true}
export default () => {
        let initData = {
            success: false, 
            data: null, 
            msg: '', 
            code: null,
            loading: false
        }
        let loginData = useRef<Param>(initData)
        const {setToken, setSessionKey} = useUserInfo()
        const router = useRouter()
        //微信登录请求v2
        const fetchData = async (login_code) => {
            const q = {
                url: BASE_URL + '/v1/mall/login',
                header: {
                    "Platform": 6,
                    "Appid": WX_APPID,
                },
                method: 'post',
                data:{js_code: login_code}
            }
            try{
                const result = await Taro.request(q as any)
                const {code, data, msg} = result.data
                if(result.statusCode === 200) {
                    loginData.current.success = (code === 0 ? true : false)
                    loginData.current.code = code
                    loginData.current.msg = msg
                    loginData.current.data = data
                } else {
                    Taro.showToast({
                        title: `错误：登录失败`,
                        icon: 'none'
                    })
                    console.log('登录错误：', result.errMsg)
                    
                }
            }catch(e) {
                Taro.showToast({
                    title: `错误：登录失败`,
                    icon: 'none'
                })
                console.log('登录错误：', e.errMsg)
            }
            return loginData.current
        }

        //微信登录
        const login = () => {
            return new Promise((reslove, reject) => {
                Taro.login({
                    success:  async (res) => {
                        if (res.code) {
                            const {data, success, msg} = await fetchData(res.code)
                            if(success) {
                                    setToken(data.token)
                                    setSessionKey(data.session_key)
                                    reslove(data)
                                    let params = router.params
                                    delete params.$taroTimestamp
                                    if(router.path === '/pages/index/index' || router.path === '/pages/user/index') {
                                        Taro.reLaunch({
                                            url: router.path +'?' + qs.stringify(params)
                                        })
                                    } else {
                                        Taro.redirectTo({
                                            url: router.path +'?' + qs.stringify(params)
                                        })
                                    }
                            } else {
                                Taro.showToast({
                                    title:'登录失败',
                                    icon:"none"
                                })
                                reject(msg)
                            }
                        } else {
                            console.log('登录失败！' + res.errMsg)
                            reject(res.errMsg)
                        }
                    },
                    fail: function(e) {
                        console.log('登录失败！::',e)
                        reject(e)
                    }
                })
            })
            
        }

        return {
            login
        }

}