import axios, { AxiosRequestConfig } from 'axios'
import { v4 } from 'uuid'
//import qs from 'qs'
import cryptojs from 'crypto-js'
//import { addPending, removePending } from './pending'
import { encryptBody, decryptBody } from '@/services/websocket/package/crypto'
import { IMessageHead } from '@/types/proto/proto'
import { useLoginStore, useAccountStore, useErrorInfoStore } from '@/stores'
import { CommonResult, ResultCode, SendMsgToMQ } from './types'
import { FunCode } from '@/constants/funcode'
import service from '@/services'

export default new (class {
    private readonly axiosInstance = axios.create({
        timeout: 30000,
    })

    constructor() {
        // 请求拦截器
        this.axiosInstance.interceptors.request.use(
            (config) => {
                const loginStore = useLoginStore()
                //addPending(config) //将当前请求添加到列表中
                //请求头签名
                const sign = {
                    token: loginStore.token,
                    signsecret: 'qz7qWOMXKTMT5JlDs5w4NTPwWeR3xhF1v6wqbZ9cExmP6cc3spvNAp1wJJ1SqRI5',
                    timestamp: new Date().getTime(),
                }
                //设置请求头
                config.headers = {
                    Authorization: sign.token,
                    LoginID: loginStore.loginId,
                    Group: loginStore.clientType,
                    'x-token': sign.token,
                    //Signid: 'eecd3f37625f4501b88e9f0fa14b4b51',
                    //Sign: cryptojs.SHA256(qs.stringify(sign)).toString(),
                    //Timestamp: sign.timestamp.toString(),
                }
                return config
            },
            (err) => {
                console.error(err)
                return Promise.reject('发生错误，请稍后再试')
            }
        )

        // 响应拦截器
        this.axiosInstance.interceptors.response.use(
            (res) => {
                //removePending(res) //在请求结束后，移除本次请求
                return res
            },
            (err) => {
                if (err.message === 'Network Error') {
                    return Promise.reject('无效的网络连接')
                }
                if (err.response) {
                    const { msg, message } = err.response.data ?? {}
                    switch (err.response.status) {
                        case 408: {
                            return Promise.reject('请求超时，请稍后再试')
                        }
                        default: {
                            return Promise.reject(msg || message)
                        }
                    }
                }
                return Promise.reject('发生错误，请稍后再试')
            }
        )
    }

    /** 请求响应集合 */
    private resultMap = new Set<() => void>()

    /** 
     * 建议在过渡动画中启用，动画结束时禁用
     * 可防止在动画过程中同时请求数据，数据请求先于动画完成，双绑数据的页面会实时渲染，导致动画卡顿的问题
     */
    private _pending = false

    /** 全局 pending 状态 */
    get pending() {
        return this._pending
    }

    /** 在动画开始时设置一个 pending 状态，在动画结束后取消 pending 状态 */
    set pending(status: boolean) {
        this._pending = status
        if (!status) {
            // 当 pending 状态为 false 时返回所有请求的回调
            this.resultMap.forEach((fn) => {
                fn()
                this.resultMap.delete(fn)
            })
        }
    }

    /**
     * Http 请求
     * @param config 
     * @param errMsg 
     * @returns 
     */
    request<T>(config: AxiosRequestConfig, errMsg?: string) {
        return new Promise<T>((resolve, reject) => {
            this.axiosInstance(config).then((res) => {
                if (this.pending) {
                    this.resultMap.add(() => resolve(res.data))
                } else {
                    resolve(res.data)
                }
            }).catch((err) => {
                const msg = err ?? (errMsg ? '请求失败: ' + errMsg : '请求失败，请稍后重试')
                reject(msg)
            })
        })
    }

    /**
     * Http 通用请求
     * @param config 
     * @param errMsg 
     * @returns 
     */
    async commonRequest<T>(config: AxiosRequestConfig, errMsg?: string) {
        const baseUrl = service.getConfig('goCommonSearchUrl')
        config.url = baseUrl + config.url
        const res = await this.request<CommonResult<T>>(config, errMsg)
        switch (res.code) {
            case ResultCode.InvalidToken:
                return Promise.reject('令牌无效')
            case ResultCode.Success:
                return res
            default:
                return Promise.reject(res.msg)
        }
    }

    /**
     * Http 通用请求
     * @param config 
     * @param errMsg 
     * @returns 
     */
    async goRequest<T>(config: AxiosRequestConfig, errMsg?: string) {
        const baseUrl = service.getConfig('goAccess')
        config.url = baseUrl + config.url
        const res = await this.request<CommonResult<T>>(config, errMsg)
        switch (res.code) {
            case ResultCode.InvalidToken:
                return Promise.reject('令牌无效')
            case 0:
                return res
            default:
                return Promise.reject(res.msg)
        }
    }

    /**
     * Http 通用请求
     * @param config 
     * @param errMsg 
     * @returns 
     */
    async mqRequest<T>({ data, requestCode, responseCode, marketId = 0 }: SendMsgToMQ<{ Header?: IMessageHead }>, errMsg?: string) {
        const loginStore = useLoginStore()
        const accountStore = useAccountStore()
        const requestId = FunCode[requestCode]
        const responseId = FunCode[responseCode]

        if (data) {
            data.Header = {
                AccountID: accountStore.accountId,
                FunCode: requestId,
                UUID: v4(),
                UserID: loginStore.userId,
                MarketID: marketId,
                ...data.Header,
            }
        }
        console.log(requestCode, data)

        const config: AxiosRequestConfig = {
            method: 'post',
            url: '/MQ/SendMsgToMQ',
            data: {
                data: encryptBody(JSON.stringify(data ?? '{}')),
                funCodeReq: requestId,
                funCodeRsp: responseId,
                isEncrypted: true,
            }
        }

        try {
            const res = await this.goRequest<{ data: string }>(config, errMsg)
            return await this.package50Parse<T>(responseCode, res.data.data)
        } catch (err) {
            return await Promise.reject(err)
        }
    }

    /**
     * 解析 package50 数据
     * @param responseCode 
     * @param data 
     * @returns 
     */
    private package50Parse<T>(responseCode: keyof typeof FunCode, data: string) {
        const decryptedData = decryptBody(data)
        const res = JSON.parse(decryptedData)
        console.log(responseCode, res)

        switch (res.RetCode) {
            case 0: {
                return Promise.resolve(res as T)
            }
            case 12018: {
                if (res.RetDesc) {
                    const word = cryptojs.enc.Base64.parse(res.RetDesc) // 解析base64
                    res.RetDesc = cryptojs.enc.Utf8.stringify(word)
                }
                return Promise.reject(res.RetDesc)
            }
            default: {
                // 银行 业务 以 Status 作为判断依据
                if (res.Status === 0 || res.Status == 6007) {
                    return Promise.resolve(res as T)
                }
                const { getErrorInfoByCode } = useErrorInfoStore()
                const msg = getErrorInfoByCode(res.RetCode)
                const error = String(res.RetDesc || res.RetCode || res.Status)
                return Promise.reject(msg ?? error)
            }
        }
    }
})