gtht-miniapp-sdk/utils/persist.js

gtht-miniapp-sdk 是一套基于 Uniapp + Vue3 框架开发的兼容多端的 UI 组件库

export class Persist {
    name;
    prefix;
    cache = {};
    constructor(name) {
        this.name = name;
        this.prefix = name + '#';
        this.cache = this.getCache();
    }
    getCache() {
        const cache = {};
        const res = uni.getStorageInfoSync();
        for (let i = 0; i < res.keys.length; i++) {
            const key = res.keys[i];
            if (key && key.startsWith(this.prefix)) {
                const value = uni.getStorageSync(key);
                if (value) {
                    try {
                        const result = JSON.parse(value);
                        if (result &&
                            typeof result === 'object' &&
                            !Array.isArray(result)) {
                            cache[key] = result;
                        }
                    }
                    catch {
                        void 0;
                    }
                }
            }
        }
        return cache;
    }
    save(fullKey) {
        if (fullKey) {
            if (fullKey in this.cache) {
                uni.setStorageSync(fullKey, JSON.stringify(this.cache[fullKey]));
            }
            else {
                uni.removeStorageSync(fullKey);
            }
        }
        else {
            const res = uni.getStorageInfoSync();
            for (let i = 0; i < res.keys.length; i++) {
                const key = res.keys[i];
                if (key && key.startsWith(this.prefix)) {
                    if (!(key in this.cache)) {
                        uni.removeStorageSync(key);
                        i--;
                    }
                }
            }
            Object.keys(this.cache).forEach((key) => {
                uni.setStorageSync(key, JSON.stringify(this.cache[key]));
            });
        }
    }
    get(key) {
        const item = this.cache[this.prefix + key];
        if (item) {
            if (item.ttl > 0 && item.ttl < Date.now()) {
                this.remove(key);
            }
            else {
                return item.value;
            }
        }
    }
    set(key, value, ttl = 0) {
        const fullKey = this.prefix + key;
        this.cache[fullKey] = {
            ttl: ttl > 0 ? ttl * 1000 + Date.now() : 0,
            value,
        };
        this.save(fullKey);
    }
    remove(key) {
        const fullKey = this.prefix + key;
        if (fullKey in this.cache) {
            delete this.cache[fullKey];
            this.save(fullKey);
        }
    }
    clear() {
        this.cache = {};
        this.save();
    }
}