<?php

namespace QCod\Settings\Setting;

use Illuminate\Support\Collection;

interface SettingStorage
{
    /**
     * Get all settings from storage as key value pair.
     *
     * @param  bool  $fresh  ignore cached
     * @return Collection
     */
    public function all($fresh = false);

    /**
     * Get a setting from storage by key.
     *
     * @param  string  $key
     * @param  null  $default
     * @param  bool  $fresh
     * @return mixed
     */
    public function get($key, $default = null, $fresh = false);

    /**
     * Check if setting with key exists.
     *
     * @param $key
     * @return bool
     */
    public function has($key);

    /**
     * Save a setting in storage.
     *
     * @param $key string|array
     * @param $val string|mixed
     * @return mixed
     */
    public function set($key, $val = null);

    /**
     * Remove a setting from storage.
     *
     * @param $key
     * @return mixed
     */
    public function remove($key);

    /**
     * Flush setting cache.
     *
     * @return bool
     */
    public function flushCache();

    /**
     * Set the group name for settings.
     *
     * @param  string  $groupName
     * @return $this
     */
    public function group($groupName);
}