/**
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* @description 缓存工具类
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*/
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export default class CacheUtils {
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/**
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* @description 打开IndexedDB
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*/
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static openIndexDB (db) {
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try {
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let request = window.indexedDB.open(db, 3)
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request.onerror = () => {
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console.warn('IndexedDB 初始化失败！')
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}
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request.onsuccess = () => {
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window.GLOB.IndexDB = request.result
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}
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request.onupgradeneeded = (event) => {
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window.GLOB.IndexDB = event.target.result
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if (!window.GLOB.IndexDB.objectStoreNames.contains('version')) {
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window.GLOB.IndexDB.createObjectStore('version', { keyPath: 'id' })
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}
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if (!window.GLOB.IndexDB.objectStoreNames.contains('configs')) {
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let objectStore = window.GLOB.IndexDB.createObjectStore('configs', { keyPath: 'id' })
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objectStore.createIndex('menuid', 'menuid', { unique: false })
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objectStore.createIndex('userid', 'userid', { unique: false })
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}
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if (!window.GLOB.IndexDB.objectStoreNames.contains('caches')) {
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window.GLOB.IndexDB.createObjectStore('caches', { keyPath: 'menuid' })
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}
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if (!window.GLOB.IndexDB.objectStoreNames.contains('funcs')) {
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window.GLOB.IndexDB.createObjectStore('funcs', { keyPath: 'id' })
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}
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}
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} catch (e) {
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console.warn('IndexedDB 初始化失败！')
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window.GLOB.IndexDB = null
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}
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}
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/**
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* @description 获取IndexedDB中保存信息版本
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*/
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static getIndexDBVersion () {
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if (!window.GLOB.IndexDB) {
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return Promise.reject()
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}
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let deffers = []
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deffers.push(
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new Promise((resolve) => {
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let request = window.GLOB.IndexDB.transaction(['version'])
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.objectStore('version')
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.get('mksoft')
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request.onerror = (event) => {
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console.warn(event)
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resolve({version: '', createDate: ''})
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}
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request.onsuccess = () => {
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if (request.result) {
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resolve(request.result)
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} else {
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resolve({version: '', createDate: ''})
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}
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}
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})
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)
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deffers.push(
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new Promise((resolve) => {
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let request = window.GLOB.IndexDB.transaction(['configs']).objectStore('configs').openCursor()
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let menus = []
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let ids = []
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request.onerror = () => {
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resolve(menus)
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}
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request.onsuccess = (e) => {
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let cursor = e.target.result
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if (cursor) {
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if (cursor.value.menuid && !ids.includes(cursor.value.menuid)) {
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menus.push(`'${cursor.value.menuid}','${cursor.value.open_edition || 'mk'}'`)
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ids.push(cursor.value.menuid)
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}
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cursor.continue()
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} else {
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resolve(menus)
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}
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}
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})
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)
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return new Promise((resolve) => {
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Promise.all(deffers).then(res => {
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let result = res[0]
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if (result.createDate && !/^\d{4}-\d{2}-\d{2}/.test(result.createDate)) {
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result.createDate = ''
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}
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result.menuids = res[1].join(';')
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resolve(result)
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})
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})
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}
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/**
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* @description 更新IndexedDB中配置信息的版本
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*/
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static updateIndexDBversion (version) {
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if (!window.GLOB.IndexDB || !version) return
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if (!version) {
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window.GLOB.IndexDB.transaction(['configs'], 'readwrite').objectStore('configs').delete('mksoft')
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} else {
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version.id = 'mksoft'
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let objectStore = window.GLOB.IndexDB.transaction(['version'], 'readwrite').objectStore('version')
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let request = objectStore.get('mksoft')
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request.onsuccess = () => {
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if (request.result) {
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objectStore.put(version)
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} else {
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objectStore.add(version)
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}
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}
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}
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}
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/**
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* @description 删除IndexedDB中保存的配置信息-批量
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*/
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static delIndexDBConfig (menuids) {
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if (!window.GLOB.IndexDB) return
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if (!menuids) {
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window.GLOB.IndexDB.transaction(['configs'], 'readwrite').objectStore('configs').clear()
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} else {
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let request = window.GLOB.IndexDB.transaction(['configs'], 'readwrite').objectStore('configs').openCursor()
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request.onsuccess = (e) => {
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let cursor = e.target.result
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if (cursor) {
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if (menuids.includes(cursor.value.menuid)) {
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cursor.delete()
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}
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cursor.continue()
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}
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}
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}
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}
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/**
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* @description 获取IndexedDB中的配置信息
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*/
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static getIndexDBMenuConfig (key) {
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if (!window.GLOB.IndexDB || !key) return Promise.reject()
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return new Promise((resolve, reject) => {
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let request = window.GLOB.IndexDB.transaction(['configs']).objectStore('configs').get(key)
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request.onerror = () => {
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reject()
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}
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request.onsuccess = () => {
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if (request.result) {
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resolve(request.result)
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} else {
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reject()
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}
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}
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})
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}
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/**
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* @description 将数据写入IndexedDB
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*/
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static writeInIndexDB (data) {
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if (!window.GLOB.IndexDB || !data) return
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window.GLOB.IndexDB.transaction(['configs'], 'readwrite').objectStore('configs').add(data)
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}
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/**
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* @description 将数据写入IndexedDB
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*/
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static writeCacheInIndexDB (data) {
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if (!window.GLOB.IndexDB) return
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let objectStore = window.GLOB.IndexDB.transaction(['caches'], 'readwrite').objectStore('caches')
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objectStore.delete(data.menuid)
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if (data.LongParam) {
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objectStore.add(data)
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}
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}
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/**
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* @description 获取IndexedDB中的配置信息
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*/
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static getIndexDBCacheConfig (MenuID) {
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if (!window.GLOB.IndexDB) return Promise.resolve()
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return new Promise((resolve, reject) => {
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let request = window.GLOB.IndexDB.transaction(['caches']).objectStore('caches').get(MenuID)
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request.onerror = () => {
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resolve()
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}
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request.onsuccess = () => {
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resolve(request.result)
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}
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})
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}
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/**
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* @description 删除IndexedDB中超过7天的缓存信息
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*/
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static delIndexDBCacheConfig (date, type) {
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if (!window.GLOB.IndexDB) return
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if (type === 'all') {
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window.GLOB.IndexDB.transaction(['caches'], 'readwrite').objectStore('caches').clear()
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} else {
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let request = window.GLOB.IndexDB.transaction(['caches'], 'readwrite').objectStore('caches').openCursor()
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request.onsuccess = (e) => {
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let cursor = e.target.result
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if (cursor) {
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if (cursor.value.CreateDate < date) {
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cursor.delete()
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}
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cursor.continue()
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}
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}
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}
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}
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}
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