radare/radare2-webui

export class SettingsManager {

    get keys() { return this.itemKeys };

    constructor(keys, baseConf) {
        this.itemKeys = keys;
        this.conf = baseConf;
    }

    loadAll(force = false) {
        for (let key in this.conf) {
            const curValue = this.getItem(key);
            const defaultValue = this.getItemDefaultValue(key);
            if ((!force && curValue !== defaultValue) || force) {
                this.conf[key].apply(curValue);
            }
        }
    }

    resetAll() {
        for (let key in this.conf)
            localStorage.removeItem(key);
        this.loadAll(true);
    }

    getItem(key) {
        if (!this.keyExists(key)) throw new Error(`ConfKey ${key} doesn't exist!`);
        
        var local = localStorage.getItem(key);
        if (local !== null) {
            if (local === 'false') {
                local = false;
            } else if (local === 'true') {
                local = true;
            }
            return local;
        } else {
            return this.getItemDefaultValue(key);
        }
    }

    setItem(key, value) {
        if (!this.keyExists(key)) throw new Error(`ConfKey ${key} doesn't exist!`);
        
        localStorage.setItem(key, value);
        this.conf[key].apply(value);
    }

    getItemDefaultValue(key) {
        if (!this.keyExists(key)) throw new Error(`ConfKey ${key} doesn't exist!`);

        return this.conf[key].defVal;
    }

    /** Tell if the key is defined in the declared item keys */
    keyExists(key) {
        return (typeof this.conf[key]) !== 'undefined';
    }
}