331 lines
9.0 KiB
JavaScript
331 lines
9.0 KiB
JavaScript
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import moment from 'moment'
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import BaseModel from './BaseModel.js'
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const servs = ['mys', 'hoyolab']
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// 超时时间不必精确,直接定24小时即可
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const EX = 3600 * 24
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const redisKeyRoot = 'Yz:genshin:mys:'
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export default class DailyCache extends BaseModel {
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constructor (uid) {
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super()
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const storeKey = DailyCache.getStoreKey(uid)
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// 检查实例缓存
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let self = this._getThis('store', storeKey)
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if (self) {
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return self
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}
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this.keyPre = `${redisKeyRoot}${storeKey}`
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return this._cacheThis()
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}
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/**
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* 传入UID或server标示,返回当日存储对象
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* @param uid
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* * 为空则返回与serv无关的dailyCache
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* * 传入UID,会返回UID对应serv的cache对象
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* * 传入servKey (mys/hoyolab),会返回指定的servCache
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* @returns {DailyCache}
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*/
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static create (uid) {
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return new DailyCache(uid)
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}
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/** ---- 基础方法 ---- **/
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// 内部方法:获取redis表key键值
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getTableKey (key, sub = '') {
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if (sub) {
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return `${this.keyPre}:${key}-${sub}`
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} else {
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return `${this.keyPre}:${key}`
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}
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}
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// 内部方法:获取server key
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static getServKey (uid) {
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// 不传入uid为默认cache
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if (!uid || uid === 'cache') {
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return 'cache'
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}
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// 传入uid或sever key,判断是mys还是hoyolab
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return /^[6-9]|^hoyo|^os/i.test(uid) ? servs[1] : servs[0]
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}
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// 内部方法:获取redis表前缀
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static getStoreKey (uid) {
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const serv = DailyCache.getServKey(uid)
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const date = moment().format('MM-DD')
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return `${serv}-${date}`
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}
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/**
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* 遍历所有servCache
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* @param fn
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* @returns {Promise<void>}
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*/
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static async eachCache (fn) {
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for (const serv of servs) {
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let cache = DailyCache.create(serv)
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if (cache) {
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await fn(cache)
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}
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}
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}
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/**
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* 删除过期的DailyCache
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*/
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static async clearOutdatedData () {
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let keys = await redis.keys(`${redisKeyRoot}*`)
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const date = moment().format('MM-DD')
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const testReg = new RegExp(`^${redisKeyRoot}(mys|hoyo|hoyolab|cache)-\\d{2}-\\d{2}`)
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const todayReg = new RegExp(`^${redisKeyRoot}(mys|hoyo|hoyolab|cache)-${date}`)
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for (let key of keys) {
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if (testReg.test(key) && !todayReg.test(key)) {
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await redis.del(key)
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}
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}
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}
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/**
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* 设置指定表的过期时间
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* @param table 表
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* @param hasCount 是否具有count表(KeyList)
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* @returns {Promise<void>}
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*/
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async exTable (table, hasCount = false) {
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await redis.expire(this.getTableKey(table), EX)
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if (hasCount) {
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await redis.expire(this.getTableKey(table, 'count'), EX)
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}
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}
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/**
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* 清空删除指定表
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* @param table
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* @returns {Promise<void>}
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*/
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async empty (table) {
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await redis.del(this.getTableKey(table))
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await redis.del(this.getTableKey(table, 'count'))
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}
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/**
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* 【基础数据结构】:Key-Value
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*
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* 每个key对应一个Value
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* 使用redis kv存储,所有操作需要指定表名
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*
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* **/
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/**
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* 获取表指定key内容
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* @param table 表名
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* @param key 数据存储key
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* @param decode 是否对内容进行decode
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* @returns {Promise<any|boolean>}
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*/
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async kGet (table, key, decode = false) {
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let value = await redis.hGet(this.getTableKey(table), '' + key)
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return DailyCache.decodeValue(value, decode)
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}
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/**
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* 设置表指定key内容
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* @param table 表名
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* @param key 数据存储key
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* @param value 数据,若传入对象或数组会自动encode
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* @returns {Promise<void>}
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*/
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async kSet (table, key, value) {
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value = DailyCache.encodeValue(value)
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await redis.hSet(this.getTableKey(table), '' + key, value)
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await this.exTable(this.getTableKey(table))
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}
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/**
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* 删除表中指定key内容
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* @param table 表名
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* @param key 数据存储key
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* @returns {Promise<number>}
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*/
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async kDel (table, key) {
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return await redis.hDel(this.getTableKey(table), '' + key)
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}
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/**
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* 获取指定表内容
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* @param table 表名
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* @param decode 是否对内容进行decode
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* @returns {Promise<any|boolean>}
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*/
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async get (table, decode = false) {
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const tableKey = this.getTableKey(table)
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let value = await redis.get(tableKey)
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return DailyCache.decodeValue(value, decode)
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}
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/**
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* 设置指定表内容
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* @param table 表名
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* @param value 数据,若传入对象或数组会自动encode
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* @returns {Promise<any|boolean>}
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*/
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async set (table, value) {
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value = DailyCache.encodeValue(value)
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return await redis.set(this.getTableKey(table), value, { EX })
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}
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// 内部方法,用于decode value
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static decodeValue (value, decode = false) {
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if (value && decode) {
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try {
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return JSON.parse(value)
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} catch (e) {
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return false
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}
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}
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return value
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}
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// 内部方法,用于encode value
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static encodeValue (value) {
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if (typeof (value) === 'object') {
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return JSON.stringify(value) || ''
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}
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if (typeof (value) === 'undefined') {
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return ''
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}
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return '' + value
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}
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/**
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* 【基础数据结构】:Key-List
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*
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* 每个key对应一个list,key必须为数字,list间的item不重复
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* 若重复item被添加,则会将item移至指定key对应List中
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*
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* 会自动统计每个list长度并排序
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* 使用redis sorted map存储,所有操作需要指定表名
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*
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* **/
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/**
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* 为KeyList添加 item
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* @param table 表名
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* @param key 添加item对应 key键值
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* @param item 添加的item
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* @returns {Promise<void>}
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*/
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async zAdd (table, key, item) {
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const tableKey = this.getTableKey(table)
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await redis.zAdd(tableKey, { score: key, value: item + '' })
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// 同时更新数量,用于数量统计
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let count = await this.zCount(table, key) || 0
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const countKey = this.getTableKey(table, 'count')
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await redis.zAdd(countKey, { score: count, value: key + '' })
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await this.exTable(this.getTableKey(table), true)
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}
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// 根据key获取list
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/**
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* 根据Key获取List
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* @param table 表名
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* @param key key键值
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* @returns {Promise<Array<ConvertArgumentType<string | Buffer, string>>>}
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*/
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async zList (table, key) {
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return await redis.zRangeByScore(this.getTableKey(table), key, key)
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}
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/**
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* 获取指定item所在List对应的key键值
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* @param table 表名
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* @param item item
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* @returns {Promise<number>}
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*/
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async zKey (table, item) {
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return await redis.zScore(this.getTableKey(table), item + '')
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}
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/**
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* 获取指定key对应List的长度
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* @param table 表名
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* @param key 需要获取长度的key
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* @returns {Promise<number>} 长度值
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*/
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async zCount (table, key) {
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return await redis.zCount(this.getTableKey(table), key, key)
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}
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/**
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* 获取当前KeyList中,List长度最小的一个key
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* 由于内部场景使用,简单规定List长度有效范围为0-60
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* @param table
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* @returns {Promise<string>}
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*/
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async zMinKey (table) {
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let keys = await redis.zRangeByScore(this.getTableKey(table, 'count'), 0, 60)
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return keys[0]
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}
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/**
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* 在当前KeyList中禁用指定的key
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* 会保留所有已有item记录,但不再被zMinKey识别并返回
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* 主要用于标记CK查询次数超限场景(已经查询的记录仍然有效)
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* @param table
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* @param key
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* @param delCount 是否同时删除count记录,删除后不会被zGetDisableKey获取
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* @returns {Promise<void>}
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*/
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async zDisableKey (table, key, delCount = false) {
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// 将count标记为99次,记录并防止被后续分配
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const countKey = this.getTableKey(table, 'count')
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if (delCount) {
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await redis.zRem(countKey, key)
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} else {
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await redis.zAdd(countKey, { score: 99, value: key })
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}
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}
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/**
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* 获取已禁用的key列表,用于主动清除数据使用
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* @param table
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* @returns {Promise<Array<ConvertArgumentType<string | Buffer, string>>>}
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*/
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async zGetDisableKey (table) {
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return await redis.zRangeByScore(this.getTableKey(table, 'count'), 99, 99)
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}
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// 删除某个key
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// 清空所有查询关联,同时不再被zMinKey识别并返回
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/**
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* 删除指定key记录
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* 清空所有查询关联,同时不再被zMinKey识别并返回
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* 与zDisableKey的区别在于会删除detail中已存在的记录
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* 主要用于CK失效场景(已经查询的记录也同时失效)
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* @param table
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* @param key
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* @param delCount 是否同时删除count记录,删除后不会被zGetDisableKey获取
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* @returns {Promise<boolean>}
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*/
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async zDel (table, key, delCount = false) {
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// 删除key对应list所有记录
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let check = redis.zScore(this.getTableKey(table, 'count'), key)
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await redis.zRemRangeByScore(this.getTableKey(table), key, key)
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await this.zDisableKey(table, key, delCount)
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return !!check
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}
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/**
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* 获取指定表格的key:List count 统计数据
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* @param table
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* @returns {Promise<{key:count}>}
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*/
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async zStat (table) {
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const countKey = this.getTableKey(table, 'count')
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return await redis.zRangeByScoreWithScores(countKey, 0, 100)
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}
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}
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