<?php

namespace common\services\mall;

use Yii;
use common\interfaces\AdsSettingInterface;
use Exception;

/**
 * 插件设置Service
 * @package common\services
 */
abstract class BaseAdsSettingService extends BaseService implements AdsSettingInterface
{
    /**
     * @var int
     */
    public $mall_id;

    /**
     * @var array
     */
    protected $hiddens = [];

    /**
     * @var array
     */
    protected $shows = [];

    /**
     * @var boolean
     */
    protected $isSet = false;

    /**
     * @return void
     * @throws Exception
     */
    private function _before()
    {
        if (!isset($this->mall_id)) {
            throw new Exception('未设置Mall Id');
        }
    }

    /**
     * 获取设置前处理
     * 
     * @param array $setting
     * @return array
     */
    public function beforeGetSetting(array $setting): array
    {
        return $setting;
    }

    /**
     * 存储设置前处理
     * 
     * @param array $setting
     * @return array
     */
    public function beforeSetSetting(array $setting): array
    {
        return $setting;
    }

    /**
     * 获取设置
     *
     * @return array
     */
    public function getSetting(string $name = 'basic')
    {
        $this->_before();
        $this->isSet = false;
        $setting = Yii::$app->services->setting->addons->get($this->mall_id, $this->getAddosName(), $name);

        if ($this->hiddens) return $this->hiddenArrayKeys($setting);
        if ($this->shows) return $this->showArrayKeys($setting);
        return $this->getMergeSetting($setting);
    }

    /**
     * 设置配置
     *
     * @param array $setting
     * @param string $name
     * @return boolean
     */
    public function setSetting(array $setting, string $name = 'basic')
    {
        $this->_before();
        $this->isSet = true;
        return Yii::$app->services->setting->addons->set(
            $this->mall_id,
            $this->getAddosName(),
            [$name => $this->getMergeSetting($setting)]
        );
    }

    /**
     * 合并设置
     *
     * @param array $setting
     * @return array
     */
    protected function getMergeSetting(array $setting)
    {
        !$this->isSet && $setting = $this->beforeGetSetting($setting);
        $this->isSet && $setting = $this->beforeSetSetting($setting);
        return array_merge($this->defaultSetting(), $setting);
    }

    /**
     * 隐藏部分配置文件不返回
     *
     * @param array $hidden_keys
     * @return self
     */
    public function hiddenSetting(array $hidden_keys)
    {
        $this->shows = [];
        $this->hiddens = array_values($hidden_keys);
        return $this;
    }

    /**
     * 只显示部分配置文件
     *
     * @param array $show_keys
     * @return self
     */
    public function showSetting(array $show_keys)
    {
        $this->hiddens = [];
        $this->shows = array_values($show_keys);
        return $this;
    }

    /**
     * @param array $setting
     * @return array
     */
    protected function hiddenArrayKeys(array $setting)
    {
        return array_diff_key($this->getMergeSetting($setting), array_flip($this->hiddens));
    }

    /**
     * @param array $setting
     * @return array
     */
    protected function showArrayKeys(array $setting)
    {
        return array_intersect_key($this->getMergeSetting($setting), array_flip($this->shows));
    }
}