import { shallowRef, reactive } from 'vue'
import { v4 } from 'uuid'
import { timerTask } from '@/utils/timer'
import { wsLogin, httpLogin, logout, queryLoginId } from '@/services/api/account'
import { useGlobalStore, useLoginStore, useEnumStore, useErrorInfoStore, useUserStore, useFuturesStore, useAccountStore, useNoticeStore } from '@/stores'
import service from '@/services'
import quoteSocket from '@/services/websocket/quote'
import tradeSocket from '@/services/websocket/trade'
import tradeV2Socket from '@/services/websocket/tradeV2'
import { encryptBody } from '@/services/websocket/package/crypto'
import { checkToken, checkTokenLoop, stopCheckToken } from '@/business/common'
import eventBus from '@/services/bus'
import cryptojs from 'crypto-js'

/**
 * 登录业务模块
 * @param persist 登录状态是否持久化---------不太合理的方式，待优化
 * @returns 
 */
export function useLogin(persist = false) {
    const globalStore = useGlobalStore()
    const enumStore = useEnumStore()
    const errorInfoStore = useErrorInfoStore()
    const loginStore = useLoginStore()
    const userStore = useUserStore()
    const accountStore = useAccountStore()
    const futuresStore = useFuturesStore()
    const noticeStore = useNoticeStore()

    const { logining, token } = loginStore.$toRefs()

    const remember = shallowRef(true) // 记住账号
    const formData = reactive<Model.LoginReq>({
        userName: localStorage.getItem('app_loginId') ?? '',
        password: '',
        clientType: 0,
    })

    const loadBaseData = async () => {
        await service.onReady() // 等待服务初始化
        await Promise.all([
            errorInfoStore.getErrorInfoList(),
            enumStore.getAllEnumList(),
        ])
    }

    const loadUserData = async () => {
        await checkToken() // 令牌校验
        await Promise.all([
            userStore.getUserData(),
            accountStore.getAccountList(),
        ])
        futuresStore.getGoodsList()
        noticeStore.getNoticeList()
        checkTokenLoop()

        if (globalStore.getSystemInfo('tradeChannel') === 'http') {
            tradeV2Socket.connect()
        }
    }

    // 用户登录
    const userLogin = async (autoLogin = false) => {
        try {
            logining.value = true
            await loadBaseData()

            const payload = await new Promise<Model.LoginReq>((resolve, reject) => {
                if (autoLogin) {
                    const params = loginStore.getAutoLoginData()
                    if (params) {
                        resolve(params)
                    } else {
                        reject('自动登录失败')
                    }
                } else {
                    if (globalStore.getSystemInfo('tradeChannel') === 'ws') {
                        // websocket 登录参数
                        queryLoginId({
                            data: {
                                username: formData.userName
                            }
                        }).then((res) => {
                            resolve({
                                userName: res.data,
                                password: cryptojs.SHA256(res.data + formData.password).toString(),
                                clientType: loginStore.getClientType()
                            })
                        }).catch((err) => {
                            reject(err)
                        })
                    } else {
                        // http 登录参数
                        resolve({
                            userName: formData.userName,
                            password: encryptBody(formData.password),
                            clientType: loginStore.getClientType()
                        })
                    }
                }
            })

            if (globalStore.getSystemInfo('tradeChannel') === 'ws') {
                // websocket 登录
                const res = await wsLogin({
                    LoginID: payload.userName,
                    LoginPWD: payload.password,
                    GUID: v4(),
                    LoginType: 0,
                    ClientType: payload.clientType,
                    Version: '2.0.0.0',
                    DeviceID: ''
                })
                // 更新登录信息
                loginStore.setLoginInfo({
                    expiresAt: 0,
                    loginId: res.LoginID,
                    token: res.Token,
                    userId: res.UserID,
                }, persist)
            } else {
                // http 登录
                const res = await httpLogin({ data: payload })
                // 更新登录信息
                loginStore.setLoginInfo(res.data, persist)
            }

            loginStore.setAutoLoginData(payload) // 更新自动登录信息
            localStorage.setItem('app_loginId', formData.userName) // 记住登录ID
            await loadUserData()
            eventBus.$emit('LoginNotify') // 登录成功通知
        } finally {
            logining.value = false
        }
    }

    // 用户登出
    const userLogout = (callback?: () => void) => {
        stopCheckToken()
        tradeSocket.close()
        tradeV2Socket.close()
        quoteSocket.close()
        timerTask.clearAll()

        accountStore.$reset() // 待处理，重置后可能会出现多个重复的 store 实例
        loginStore.clearAutoLoginData()
        loginStore.clearLoginInfo()
        callback && callback()
    }

    // 初始化业务数据
    const initBaseData = async (autoLogin = false) => {
        try {
            logining.value = true
            await loadBaseData()
            if (token.value) {
                await loadUserData()
            } else if (autoLogin && loginStore.getAutoLoginData()) {
                await userLogin(true)
            }
        } finally {
            logining.value = false
        }
    }

    return {
        logining,
        remember,
        formData,
        initBaseData,
        userLogin,
        userLogout,
    }
}