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* @Author: Lyon lyon@lyon.lv
* @Date: 2023-05-25 12:03:52
* @LastEditors: Lyon lyon@lyon.lv
* @LastEditTime: 2024-04-19 12:13:10
* @FilePath: /temp-store/lib/index.ts
* @Description:
*/
import PersistentData from '@lyon/persistent-data'
/**
* TempStore 类的定义
*/
interface TempStoreInterface {
set: <T>({}: SetObject<T>) => void
get: <T = any>(key: string) => T | undefined
delete: ({}: DeleteObject) => void
getAllValueList: () => Array<any>
destroy: (isExecute?: boolean) => void
load: (key: string) => void
unload: () => void
}
/**
* set 方法参数类型
*/
interface SetObject<T> {
key: string
value: T
time: number
callback?: DeleteCallbackFn<T>
isSave?: boolean // 当前数据是否持久化保存
}
// 批量删除参数
interface DeleteMultipleObject {
key: string
isExecute?: boolean | undefined // 是否执行删除回调 默认 true
}
/**
* delete 方法参数类型
*/
interface DeleteObject extends DeleteMultipleObject {
isSave?: boolean // 当前数据是否持久化保存
}
/**
* 删除函数回调参数类型
*/
type DeleteCallbackFn<T> = ({ key, value }: { key: string; value: T }) => void
interface TempStoreSaveValueItemType<T> {
value: T // 需要保存的数据
create: number // 创建时间 ms
time: number // 保存的时间 ms
}
interface TempStoreValueItemType<T = any> extends TempStoreSaveValueItemType<T> {
deleteId: number | NodeJS.Timeout // settimeout 的回调 id
deleteCallback?: DeleteCallbackFn<T> // 删除事件的回调
}
interface TempStoreSaveValueType<T> {
[key: string]: TempStoreSaveValueItemType<T>
}
/**
* 内部临时数据类型
*/
interface TempStoreValueType<T> {
[key: string]: TempStoreValueItemType<T>
}
class TempStore implements TempStoreInterface {
private $_TempStore: TempStoreValueType<any>
private Persistent: PersistentData<TempStoreSaveValueType<any>> | null
private readonly isDebug: boolean
private readonly isNode: boolean // 当前环境是否是 node
public constructor(isDebug?: Boolean) {
this.isDebug = Boolean(isDebug)
this.$_TempStore = {}
this.isNode = typeof (window as any) === 'undefined'
this.Persistent = null
}
// 启用数据持久化
public load(key: string) {
try {
// 如果多次调用先删除旧的再创建新的
this.unload()
if (!this.Persistent) {
this.Persistent = new PersistentData(key, this.$_TempStore, this.isDebug)
// 从持久化中获取数据
this.Persistent.read()
const keys = Object.keys(this.Persistent.data)
const current = new Date().getTime()
for (const key of keys) {
const { value, time, create } = this.Persistent.data[key]
if (current < create + time) {
// 没过期
const newTime = create + time - current // 新的删除时间
// 赋值
this.set({ key, value, time: newTime, isSave: false })
}
}
// 保存一下最新的数据
this.save()
}
} catch (e) {
this.log(e)
}
}
// 卸载数据持久化并删除数据
public unload() {
try {
if (this.Persistent) {
this.Persistent.remove()
this.Persistent = null
}
} catch (e) {
this.log(e)
}
}
/**
* 保存临时数据
* @param {Object} obj 参数对象 {key:键名,value:键值,time:超时时间(默认0ms),callback: 数据删除后的回调(参数为删除的数据 key value 对象),isSave: 是否持久化保存该数据 默认触发保存}
*/
public set<T>({ key = 'normal', value, time = 0, callback, isSave = true }: SetObject<T>): void {
// 已存在的 key 先删除 再重新赋值
// 清空原有的定时器id
if (this.$_TempStore[key]) {
clearTimeout(this.$_TempStore[key].deleteId)
}
// 设置删除定时器
const deleteId = setTimeout(() => {
this.delete({ key })
}, time)
this.$_TempStore[key] = {
value,
deleteId,
time,
create: new Date().getTime(),
deleteCallback: callback
}
isSave && this.save()
this.log(
`临时数据---保存[${JSON.stringify({
key,
value,
time
})}]成功${
this.isNode ? `此时内存占用量为[${global.process.memoryUsage().heapUsed}]字节` : ''
}`
)
}
/**
* 获取临时数据
* @param {String} key key值
*/
public get<T = any>(key: string): T | undefined {
return this.$_TempStore[key] ? this.$_TempStore[key].value : undefined
}
/**
* 删除指定临时数据
* @param {String} key key值
* @param {Object} params 是否执行删除回调 默认执行
*/
public delete({ key, isExecute = true, isSave = true }: DeleteObject) {
if (this.$_TempStore[key]) {
// 清空原有的定时器id
clearTimeout(this.$_TempStore[key].deleteId)
if (
isExecute &&
Object.prototype.toString.call(this.$_TempStore[key].deleteCallback) === '[object Function]'
) {
// 已经判断过是否是空
;(this.$_TempStore[key].deleteCallback as DeleteCallbackFn<any>)({
key,
value: this.$_TempStore[key].value
})
this.log(`临时数据---执行[${key}]删除数据回调成功`)
}
;(this.$_TempStore as any)[key] = null
delete this.$_TempStore[key] // 删除数据 强制设置为 any
isSave && this.save()
this.log(
`临时数据---删除[${key}]成功${
this.isNode ? ` 此时内存占用量为[${global.process.memoryUsage().heapUsed}]字节` : ''
}`
)
}
}
/**
* 批量删除数据
*/
public deleteMultiple(list: DeleteMultipleObject[]) {
for (const item of list) {
this.delete({ key: item.key, isExecute: item.isExecute, isSave: false })
}
this.save()
}
/**
* 返回一个所有数据的列表
*/
public getAllValueList(): Array<any> {
return Object.values(this.$_TempStore).map((item) => item.value)
}
/**
* 返回一个所有数据 key 的列表
*/
public getAllKeyList(): Array<any> {
return Object.keys(this.$_TempStore)
}
/**
* 返回一个所有数据项的列表
*/
public getAllItemList(): Array<any> {
return Object.keys(this.$_TempStore).map((key) => ({
key,
value: this.$_TempStore[key].value
}))
}
/**
* 销毁当前 temp data
* @param {Boolean} isExecute 是否执行删除回调 默认执行
*/
public destroy(isExecute?: boolean | undefined): void {
const keys = Object.keys(this.$_TempStore)
for (const key of keys) {
this.delete({ key, isExecute })
}
this.save()
}
// 持久化保存方法
private save() {
if (this.Persistent) {
try {
const keys = Object.keys(this.$_TempStore)
let data: TempStoreSaveValueType<any> = {}
for (const key of keys) {
const { value, time, create } = this.$_TempStore[key]
data[key] = {
value,
time,
create
}
}
this.Persistent.data = data
this.Persistent.write()
this.log('数据持久化保存成功')
} catch (e) {
this.log(e)
}
}
}
/**
* 打印日志信息。
* 仅当`isDebug`为`true`时，才会将消息及可选参数输出到控制台。
* @param message 可选，要打印的主要消息内容。
* @param optionalParams 可选，一个或多个额外的参数，将会与主要消息一起打印。
* @returns 无返回值。
*/
private log(message?: any): void {
this.isDebug && console.log(message)
}
}
export default TempStore
|