<?php
namespace www\controllers;

use Yii;
use common\components\util;
use common\components\configDict;

class CleanCacheController extends PlatformController{

    public function actionIndex(){
        $cacheKeys = configDict::$cacheKey;

        $i = 1;
        foreach ($cacheKeys as $keyName => $redisKey){
            $newCacheKeys[] = ['id'=>$i, 'keyName'=>$keyName];
            $i++;
        }
        return $this->render('index', ['cacheKeys'=>$newCacheKeys]);
    }

    /**
     * 删除模糊匹配的所有键
     */
    public function actionAllClean(){
        $keyName = Yii::$app->request->get('keyName');

        $cacheKeys = configDict::$cacheKey;
        if(!key_exists($keyName, $cacheKeys)){
            util::fail($keyName.'缓存键不存在');
        }
        $redisKey = $cacheKeys[$keyName].'*';//模糊匹配所有的键

        $allKeys = Yii::$app->redis->keys($redisKey);
        foreach ($allKeys as $key){
            Yii::$app->redis->executeCommand('DEL', [$key]);
        }
	    util::success($keyName.'匹配的缓存键清除完成');
    }

    public function actionKeysList(){
        $keyName = Yii::$app->request->get('keyName');

        $cacheKeys = configDict::$cacheKey;
        if(!key_exists($keyName, $cacheKeys)){
            util::fail($keyName.'缓存键不存在');
        }

        $redisKey = $cacheKeys[$keyName].'*';//模糊匹配所有的键
        $allKeys = Yii::$app->redis->keys($redisKey);
        return $this->render('keys-list', ['allKeys'=>$allKeys]);
    }

    /**
     * 指定删除单个键
     */
    public function actionSingleClean(){
        $key = Yii::$app->request->get('key');
        $exist = Yii::$app->redis->executeCommand('EXISTS', [$key]);
        if($exist){
            Yii::$app->redis->executeCommand('DEL', [$key]);
            util::success($key.'缓存键清除成功');
        }
        util::fail($key.'缓存键不存在', 'error');
    }
}