<?php
/**
 * Created by PhpStorm.
 * User: zn
 * Date: 2017/5/31
 * Time: 15:37
 */

namespace common\models;

use common\utils\EnumUtil;
use common\utils\RedisKeyUtil;
use Yii;
use yii\behaviors\TimestampBehavior;
use yii\db\ActiveRecord;

/**
 * 农场玩家之间的互动，比如偷菜、放虫、除虫等
 * Class Interaction
 * @property int $id
 * @property int $from_user_id 发起操作的用ID
 * @property int $be_user_id 受害者的ID，被偷菜等
 * @property int $land_create_time 被操作者农田创建时间，同一块农田同一颗植物只能偷一次，和农田位置一起标记这颗植物的唯一性
 * @property int $position 农田位置
 * @property int $type 操作类型；0：偷菜；1：放虫；2：放草；3：浇水；4：除虫；5：除草；
 * @property int $num 偷取数量
 * @property int $created_at
 * @property int $updated_at
 */
class Interaction extends ActiveRecord
{
    public function behaviors()
    {
        return [
            TimestampBehavior::className(),
        ];
    }

    public function rules()
    {
        return [
            ['from_user_id', 'exist', 'targetClass' => '\common\models\User', 'targetAttribute' => 'id'],
            ['be_user_id', 'exist', 'targetClass' => '\common\models\User', 'targetAttribute' => 'id'],

            ['land_create_time', 'exist', 'targetClass' => '\common\models\Land', 'targetAttribute' => 'crop_start_time'],

            ['position', 'number', 'integerOnly' => true, 'min' => 0, 'max' => EnumUtil::LAND_MAX_POSITION],

            ['type', 'in', 'range' => EnumUtil::INTERACTION_TYPE_LIST],

            ['num', 'default', 'value' => 0],
            ['num', 'number', 'integerOnly' => true, 'min' => 0],

            ['created_at', 'default', 'value' => 0],
            ['updated_at', 'default', 'value' => 0],
        ];
    }

    public static function findBy($from_user_id, $be_user_id, $land_create_time, $position, $type)
    {
        return self::findOne([
            'from_user_id' => $from_user_id,
            'be_user_id' => $be_user_id,
            'land_create_time' => $land_create_time,
            'position' => $position,
            'type' => $type,
        ]);
    }

    public function afterFind()
    {
        parent::afterFind();
        $this->saveRedis();
    }

    public function afterSave($insert, $changedAttributes)
    {
        parent::afterSave($insert, $changedAttributes);
        $this->saveRedis();
    }

    public function saveRedis()
    {
        $key = RedisKeyUtil::interaction($this->from_user_id, $this->be_user_id, $this->land_create_time, $this->position, $this->type);
        Yii::$app->redis->setex($key, Yii::$app->params['redis_cache_time'], json_encode($this->toArray()));
        Yii::$app->redis->addKey($key);
    }

    public static function findRedis($from_user_id, $be_user_id, $land_create_time, $position, $type)
    {

        $jsonStrData = Yii::$app->redis->get(RedisKeyUtil::interaction($from_user_id, $be_user_id, $land_create_time, $position, $type));
        if ($jsonStrData == null || empty($jsonStrData)) return self::findBy($from_user_id, $be_user_id, $land_create_time, $position, $type);

        $data = json_decode($jsonStrData, true);
        $obj = new Interaction();
        $obj->setAttributes($data, false);
        $obj->setIsNewRecord(false);
        return $obj;
    }

}