<?php

namespace app\models;

use Yii;

/**
 * This is the model class for table "{{%faq_meta}}".
 *
 * @property int $id ID
 * @property int $cx_mch_id 平台商户ID
 * @property int $type 类型：0=分类，1=浏览量
 * @property int $faq_id 帮助ID
 * @property string|null $key KEY
 * @property string|null $value VALUE
 * @property int $created_at 添加时间
 * @property int $updated_at 更新时间
 * @property int $is_delete 是否删除：0=否，1=是
 * @property int $deleted_at 删除时间
 */
class FaqMeta extends \yii\db\ActiveRecord
{
    const TYPE_CAT = 0;
    const TYPE_VIEWED_NUM = 1;
    
    /**
     * {@inheritdoc}
     */
    public static function tableName()
    {
        return '{{%faq_meta}}';
    }

    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['key', 'value'], 'trim'],
            [['cx_mch_id', 'type', 'faq_id', 'created_at', 'updated_at', 'is_delete', 'deleted_at'], 'integer'],
            [['faq_id'], 'required'],
            [['key'], 'string', 'max' => 50],
            [['value'], 'string', 'max' => 256],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'cx_mch_id' => '平台商户ID',
            'type' => '类型：0=分类，1=浏览量',
            'faq_id' => '帮助ID',
            'key' => 'KEY',
            'value' => 'VALUE',
            'created_at' => '添加时间',
            'updated_at' => '更新时间',
            'is_delete' => '是否删除：0=否，1=是',
            'deleted_at' => '删除时间',
        ];
    }
    
    public function beforeSave($insert) {
        if(parent::beforeSave($insert)){
            if($this->isNewRecord){
                $this->created_at = time();
            }
            $this->updated_at = time();
            if($this->is_delete == 1)
                $this->deleted_at = time();            
            return true;
        } else {
            return false;
        }
    }     
    
    public static function getViewedNum($faq_id, $cx_mch_id = 0)
    {
        $model = FaqMeta::findOne([
            'cx_mch_id' => $cx_mch_id,
            'type' => self::TYPE_VIEWED_NUM,
            'faq_id' => $faq_id,
            'is_delete' => 0,
        ]);
        if($model == null)
            return 0;
        return $model->value;
    }
    
    public static function setViewedNum($faq_id, $cx_mch_id = 0)
    {
        $model = FaqMeta::findOne([
            'cx_mch_id' => $cx_mch_id,
            'type' => self::TYPE_VIEWED_NUM,
            'faq_id' => $faq_id,
            'is_delete' => 0,
        ]);
        if($model == null){
            $model = new FaqMeta();
            $model->cx_mch_id = $cx_mch_id;
            $model->type = self::TYPE_VIEWED_NUM;
            $model->faq_id = $faq_id;
            $model->value = 0;
            $model->is_delete = 0;
        }
        $val = (int)$model->value;
        $val += 1;
        $model->value = (string)$val;
        if(!$model->save()){
            return (new Model())->getModelError($model);
        }
        return Model::asReturnSuccess();
    }
}