// 核心對(duì)比邏輯
const isChanged = (oldSet, newSet) => {
  return oldSet.size !== newSet.size || 
         ![...oldSet].every(hash => newSet.has(hash))
}

// useVersionHash.js 核心實(shí)現(xiàn)
export default function useVersionHash() {
  // 狀態(tài)管理
  const timerUpdate = ref(null)
  let scriptHashes = new Set()

  // 生命周期
  onMounted(() => startTimer())
  onBeforeUnmount(() => stopTimer())

  // 業(yè)務(wù)方法
  const fetchScriptHashes = async () => { /*...*/ }
  const compareScriptHashes = async () => { /*...*/ }
  
  return { compareScriptHashes }
}

if (scriptHashes.size === 0) {
  // 初始化基準(zhǔn)值
  scriptHashes = newScriptHashes  
} else if (
  scriptHashes.size !== newScriptHashes.size ||
  ![...scriptHashes].every(hash => newScriptHashes.has(hash))
) {
  // 觸發(fā)更新流程
  stopTimer()
  showUpdateDialog()
}

// @/utils/use-version-update.js
import { ref, onMounted, onBeforeUnmount } from 'vue'
import { ElMessageBox } from 'element-plus'

let scriptHashes = new Set()
const timerUpdate = ref(null)

export default function useVersionHash() {
  const isProduction = import.meta.env.MODE === 'production'

  const fetchScriptHashes = async () => {
    try {
      const html = await fetch('/').then((res) => res.text())
      const scriptRegex = /<script(?:\s+[^>]*)?>(.*?)<\/script\s*>/gi
      return new Set(html?.match(scriptRegex) || [])
    } catch (error) {
      console.error('獲取腳本哈希失敗:', error)
      return new Set()
    }
  }

  const compareScriptHashes = async () => {
    try {
      const newScriptHashes = await fetchScriptHashes()

      if (scriptHashes.size === 0) {
        scriptHashes = newScriptHashes
      } else if (
        scriptHashes.size !== newScriptHashes.size ||
        ![...scriptHashes].every(hash => newScriptHashes.has(hash))
      ) {
        stopTimer()
        updateNotice()
      }
    } catch (error) {
      console.error('版本檢查失敗:', error)
    }
  }

  const updateNotice = () => {
    ElMessageBox.confirm(
      '檢測(cè)到新版本，建議立即更新以確保平臺(tái)正常使用',
      '更新提示',
      {
        confirmButtonText: '確定',
        cancelButtonText: '取消',
        type: 'warning'
      }
    ).then(() => window.location.reload())
  }

  const startTimer = () => {
    if (!isProduction) return
    timerUpdate.value = setInterval(compareScriptHashes, 60000)
  }

  const stopTimer = () => {
    timerUpdate.value && clearInterval(timerUpdate.value)
  }

  onMounted(startTimer)
  onBeforeUnmount(stopTimer)

  return { compareScriptHashes, updateNotice }
}

// App.vue
import versionUpdatefrom '@/utils/use-version-update.js'
export default {
  setup() {
    const { updateNotice } = versionUpdate()
    return { updateNotice }
  }
}

// vite.config.js
import { defineConfig } from 'vite'

export default defineConfig({
  build: {
    rollupOptions: {
      output: {
         // 主入口文件命名規(guī)則
        entryFileNames: 'js/[name]-[hash:8].js',
        
        // 代碼分割塊命名規(guī)則
        chunkFileNames: 'js/[name]-[hash:8].js',
        
        // 靜態(tài)資源文件命名規(guī)則
        assetFileNames: ({ name }) => {
          const ext = name?.split('.').pop()
          return `assets/${ext}/[name]-[hash:8].[ext]`
        }
      }
    },
    // 啟用文件哈希的manifest生成
    manifest: true
  }
})

// use-version-update.ts
export const versionUpdate = () => {
  ... 具體處理邏輯
}

// main.ts
import { versionUpdate} from "@/utils/use-version-update"
if (import.meta.env.MODE == 'production') {
  versionUpdate()
}

/*
 * @Author: baicaiKing
 * @Date: 2025-01-02 13:50:33
 * @LastEditors: Do not edit
 * @LastEditTime: 2025-01-03 09:40:36
 * @FilePath: \code\src\utils\use-version-update.js
 */
// 存儲(chǔ)當(dāng)前腳本標(biāo)簽的哈希值集合
let scriptHashes = new Set();
let timerUpdate = undefined;
export default {
    data() {
        return {
        };
    },
    created() {
    },
    mounted() {
        // 每60秒檢查一次是否有新的腳本標(biāo)簽更新
        if (process.env.NODE_ENV === 'production') { // 只針對(duì)生產(chǎn)環(huán)境
            timerUpdate= setInterval(() => {
                this.compareScriptHashes()
            }, 60000);
        }
    },
    beforeDestroy() {
        clearInterval(timerUpdate);
        timerUpdate = null;
    },
    methods: {
        /**
         * 從首頁(yè)獲取腳本標(biāo)簽的哈希值集合
         * @returns {Promise<Set<string>>} 返回包含腳本標(biāo)簽的哈希值的集合
         */
        async fetchScriptHashes() {
            // 獲取首頁(yè)HTML內(nèi)容
            const html = await fetch('/').then((res) => res.text());
            // 正則表達(dá)式匹配所有<script>標(biāo)簽
            const scriptRegex = /<script(?:\s+[^>]*)?>(.*?)<\/script\s*>/gi;
            // 獲取匹配到的所有<script>標(biāo)簽內(nèi)容
            // const scripts = html.match(scriptRegex) ?? [];
            const scripts = html ? html.match(scriptRegex) || [] : [];
            // 將腳本標(biāo)簽內(nèi)容存入集合并返回
            return new Set(scripts);
        },
        /**
         * 比較當(dāng)前腳本標(biāo)簽的哈希值集合與新獲取的集合，檢測(cè)是否有更新
         */
        async compareScriptHashes() {
            // 獲取新的腳本標(biāo)簽哈希值集合
            const newScriptHashes = await this.fetchScriptHashes();

            if (scriptHashes.size === 0) {
                // 初次運(yùn)行時(shí)，存儲(chǔ)當(dāng)前腳本標(biāo)簽哈希值
                scriptHashes = newScriptHashes;
            } else if (
                scriptHashes.size !== newScriptHashes.size ||
                ![...scriptHashes].every((hash) => newScriptHashes.has(hash))
            ) {
                // 如果腳本標(biāo)簽數(shù)量或內(nèi)容發(fā)生變化，則認(rèn)為有更新
                console.info('已檢測(cè)到更新文件', {
                    oldScript: [...scriptHashes],
                    newScript: [...newScriptHashes],
                });
                // 清除定時(shí)器
                clearInterval(timerUpdate);
                // 提示用戶(hù)更新
                this.updateNotice();
            } else {
                // 沒(méi)有更新
                console.info('未檢測(cè)到更新時(shí)機(jī)', {
                    oldScript: [...scriptHashes],
                });
            }
        },
        updateNotice() {
            this.$confirm('檢測(cè)到新版本，建議立即更新以確保平臺(tái)正常使用', '更新提示', {
                confirmButtonText: '確定',
                cancelButtonText: '取消（自行刷新）',
                type: 'warning'
            }).then(() => {
                window.location.reload();
            }).catch(() => {
                console.eror('用戶(hù)取消刷新！');

            });
        }
    },

};

// App.vue
import versionUpdate from "@/util/use-version-update.js";
export default {
  name: "app",
  mixins: [versionUpdate],
  data() {
    return {};
  },
};

// vue.config
module.exports = {
  configureWebpack: {
    output: {
      filename: 'js/[name].[hash].js',
      // filename: 'js/[name].[contenthash].js',
    },
  },
  devServer: {
  },
};

// 支持Service Worker的漸進(jìn)增強(qiáng)方案
if ('serviceWorker' in navigator) {
  navigator.serviceWorker.register('/sw.js')
    .then(reg => {
      reg.addEventListener('updatefound', () => {
        showUpdateNotification()
      })
    })
}