LocalStorageService.js

const version = require('../../../../version.txt').trim()

class LocalStorageService {

    constructor(prefix, useVersion) {
        if (useVersion) {
            prefix = version + ':' + prefix
        }
        this.prefix = prefix
        this.store = {}
        this.withPrefix = function (key) {
            if (this.prefix) {
                key = this.prefix + '.' + key
            }

            return key
        }
    }

    get(k) {
        k = this.withPrefix(k)
        try {
            return JSON.parse(window.localStorage.getItem(k))
        } catch (e) {
            return this.store[k]
        }
    }

    set(k, v) {
        k = this.withPrefix(k)
        try {
            return window.localStorage.setItem(k, JSON.stringify(v))
        } catch (e) {
            this.store[k] = v
        }
    }

    remove(k) {
        k = this.withPrefix(k)
        try {
            return window.localStorage.removeItem(k)
        } catch (e) {
            delete this.store[k]
        }
    }
}

module.exports = LocalStorageService