import Vue from "vue"
import Vuex from "vuex"

Vue.use(Vuex)

export default new Vuex.Store({
    state: {
        historicalSearch: [], // 历史数据
        allForumList: [], // 全部板块数据
        homeRequestState: false, // 首页推荐和收藏接口的数据请求状态  这个是是否需要发送请求，因为用户点击收藏后需要重新获取
        getUserInfoState: false, // 这个是是否在请求状态
        favoriteList: [], // 收藏板块 数据
        recommendList: [], // 推荐板块数据
        menu: [],
        user: {}, // 用户信息
        hotSearchkeywords: [], // 热门搜索
        loading: null,
    },
    getters: {},

    mutations: {
        setHistoricalSearch(state, payload) {
            if (!Array.isArray(payload)) payload = [payload]
            let targetArr = [...new Set([...payload, ...state.historicalSearch])]
            if (targetArr.length > 10) targetArr = targetArr.slice(0, 10)

            state.historicalSearch = targetArr
            localStorage.setItem("historicalSearch", JSON.stringify(targetArr))
        },

        setAllForumList(state, payload) {
            state.allForumList = payload
        },

        setHomeRequestState(state, payload) {
            state.homeRequestState = payload
        },

        setFavoriteList(state, payload) {
            state.favoriteList = payload
        },

        setRecommendList(state, payload) {
            state.recommendList = payload
        },

        setUser(state, payload) {
            state.user = payload
        },

        setHotSearchkeywords(state, payload) {
            state.hotSearchkeywords = payload
        },

        setgetUserInfoState(state, payload) {
            state.getUserInfoState = payload
        },

        setMenu(state, payload) {
            state.menu = payload
        },
    },

    actions: {
        // 获取历史搜索的数据
        fetchHistoricalSearch({ commit }) {
            let historicalSearch = JSON.parse(localStorage.getItem("historicalSearch")) || []
            commit("setHistoricalSearch", historicalSearch)
        },

        // 获取当前 HOST
        // const host = window.location.hostname;

        // 简单的哈希函数，返回十六进制字符串
        simpleHash() {
            const str = window.location.hostname
            let hash = 0
            for (let i = 0; i < str.length; i++) {
                const char = str.charCodeAt(i)
                hash = (hash << 5) - hash + char
                hash |= 0 // Convert to 32bit integer
            }
            return (hash >>> 0).toString(16) // 将哈希值转换为无符号整数，然后转换为十六进制字符串
        },

        // // 生成唯一值
        // const uniqueValue = simpleHash(host);
        // console.log(uniqueValue); // 输出基于 HOST 生成的唯一值

        // 获取全部板块的数据
        getAllForum({ commit }, that) {
            const str = window.location.hostname
            let hash = 0
            for (let i = 0; i < str.length; i++) {
                const char = str.charCodeAt(i)
                hash = (hash << 5) - hash + char
                hash |= 0 // Convert to 32bit integer
            }
            const strr = (hash >>> 0).toString(16) // 将哈希值转换为无符号整数，然后转换为十六进制字符串

            that.$http
                .get("/api/home/allForum?" + strr)
                .then(res => {
                    if (res.code != 200) return
                    let allForumList = res.data
                    commit("setAllForumList", allForumList)
                })
                .catch(err => {
                    that.$message.error(err.message)
                })
        },

        // 获取用户信息  获取收藏信息那些数据
        getUserInfo({ state, commit }, that) {
            if (state.getUserInfoState) return
            commit("setgetUserInfoState", true)
            that.$http
                .post("/api/home")
                .then(res => {
                    if (res.code != 200) return
                    let data = res.data
                    let { config, favorite, hotSearchkeywords, recommend, user, menu } = data

                    commit("setHomeRequestState", true)
                    commit("setUser", user)
                    commit("setFavoriteList", favorite)
                    commit("setRecommendList", recommend)
                    commit("setHotSearchkeywords", hotSearchkeywords)
                    commit("setMenu", menu)

                    if (that.userInfo) {
                        // 这个是顶部用户数据的 这样不用监听是否请求成功
                        that.userInfo = user
                        that.islogin = user.uid > 0 ? true : false
                        that.hotSearchkeywords = hotSearchkeywords
                        that.menu = menu
                    }
                })
                .catch(err => {
                    that.$message.error(err.message)
                })
                .finally(() => {
                    // that.$closeUnderLoading(that)
                    commit("setgetUserInfoState", false)
                })
        },
    },
    modules: {},
})