window.state = window.state || {};
state = window.state;

state.Store = function Store (prefix) {
    this.prefix = state.constants.LS_PREFIX + (prefix ? prefix + '-' : '');
}

state.Store.prototype.set = function(key, value) {
    localStorage.setItem(this.prefix + key, value);
};

state.Store.prototype.get = function(key) {
    return localStorage.getItem(this.prefix + key);
};

state.Store.prototype.remove = function(key) {
    localStorage.removeItem(this.prefix + key);
};

state.Store.prototype.clear = function() {
    localStorage.clear();
};

state.Store.prototype.clearAll = function () {
    let keys = Object.keys(localStorage);
    for (let i = 0; i < keys.length; i++) {
        if (keys[i].startsWith(state.constants.LS_PREFIX)) {
            localStorage.removeItem(keys[i]);
        }
    }
};