<?php

namespace common\models\backend;

use common\enums\StatusEnum;
use common\models\base\BaseActiveRecord;
use yii\behaviors\TimestampBehavior;
use yii\db\ActiveRecord;
use yii\db\Exception;

/**
 * This is the model class for table "{{%backend_unread_count}}".
 *
 * @property int $id
 * @property int|null $mall_id 商城ID
 * @property int|null $type 项目类型[1=订单,2=售后订单,3=提现,4=通知]
 * @property int|null $unread_num 未读总数
 * @property int $status 状态[-1:删除;0:禁用;1启用]
 * @property int $created_at 添加时间戳
 * @property int $updated_at 更新时间戳
 */
class BackendUnreadCount extends BaseActiveRecord
{
    const ORDER = 1; // 订单
    const REFUND = 2; // 售后订单
    const WITHDRAWAL = 3; // 提现
    const NOTICE = 4; // 消息通知

    /**
     * {@inheritdoc}
     */
    public static function tableName()
    {
        return '{{%backend_unread_count}}';
    }

    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['mall_id', 'type', 'unread_num', 'status', 'created_at', 'updated_at'], 'integer'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'mall_id' => '商城ID',
            'type' => '项目类型[1=订单,2=售后订单,3=提现,4=通知]',
            'unread_num' => '未读总数',
            'status' => '状态[-1:删除;0:禁用;1启用]',
            'created_at' => '添加时间戳',
            'updated_at' => '更新时间戳',
        ];
    }

    /**
     * 获取未读消息数量
     *
     * @param array $condition
     * @return int
     */
    public static function getUnReadCount(array $condition)
    {
        return static::find()->where($condition)->select('unread_num')->scalar();
    }

    /**
     * 根据类型获取未读数量总数
     * @param $mall_id
     * @param $type
     * @return int|null
     */
    public static function getUnreadNum($mall_id, $type)
    {
        $model = self::findOne(['mall_id' => $mall_id, 'type' => $type, 'status' => StatusEnum::ENABLED]);
        if (empty($model)) {
            return 0;
        }

        return $model->unread_num;
    }

    /**
     * 添加消息未读数量
     *
     * @param integer $mall_id
     * @param integer $type
     * @return boolean|int
     */
    public static function incUnreadNum(int $mall_id, int $type)
    {
        $model = static::find()->where(['mall_id' => $mall_id, 'type' => $type])->select('id')->one();
        if (empty($model)) {
            $unread_num = 1;
            $model = new static();
            $model->load(compact('mall_id', 'type', 'unread_num'), '');
            return $model->save();
        }

        return static::updateAllCounters(['unread_num' => 1], ['id' => $model->id]);
    }

    /**
     * 减少消息未读数量
     *
     * @param integer $mall_id
     * @param integer $type
     * @return int
     */
    public static function decUnreadNum(int $mall_id, int $type)
    {
        return static::updateAllCounters(['unread_num' => -1], ['mall_id' => $mall_id, 'type' => $type]);
    }
}