<?php

namespace common\models\statistics;

use common\models\base\BaseActiveRecord;
use common\enums\RedisKeyEnum;
use common\models\common\Region;
use yii\db\Expression;
use Yii;
use yii\redis\Connection;
use function GuzzleHttp\json_decode;

/**
 *
 * This is the model class for table "{{%region_statistics}}".
 * @property int $id 记录ID
 * @property int $mall_id 商城ID
 * @property int $province_id 省份编号
 * @property int $city_id 城市编号
 * @property int $pay_num 支付数
 * @property int $order_num 下单数
 * @property float $order_money 下单金额
 * @property float $pay_money 支付金额
 */
class RegionStatistics extends BaseActiveRecord
{
    public static $regionData = [];
    public static $provinceIds = [];
    public static $provinceName =[]; 
    public static $provinceStatistics = [];

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

    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['mall_id'], 'required'],
            [['mall_id', 'order_num', 'pay_num', 'province_id', 'city_id'], 'integer'],
            [['order_money', 'pay_money'],'number']
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'mall_id' => '商城id',
            'province_id' => '省份编号',
            'city_id' => '城市编号',
            'pay_num' => '支付量',
            'order_num' => '订单量',
            'order_money' => '下单金额',
            'pay_money' => '支付金额'
        ];
    }
    
    public function behaviors() {
        return [];
    }

    /**
     * 区域订单统计
     * 
     * @param int mall_id 商城ID
     * @author hpei
     * @return array
     */
    public static function getData($mall_id) {
        try {
            self::getDefaultRegion($mall_id);
            $redis = \Yii::$app->redis;
            $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::REGION_STATISTICS, 'mall_id_' . $mall_id);
            $regionStatistics = $redis->get($cacheKey);
            if (!$regionStatistics) {
                $regionStatistics = self::createCacheData($mall_id);
                self::setCache($mall_id, $regionStatistics);
            } else {
                $regionStatistics = json_decode($regionStatistics, true);
            }
            return self::setProvinceName($regionStatistics);
        } catch (\Exception $e) {
            Yii::error('读取地区统计缓存异常：' . $e->getMessage());
            return empty(self::$provinceStatistics) ? [] : self::setProvinceName(self::$provinceStatistics);
        }
    }

    /**
     * 添加统计
     * 
     * @param array data [mall_id=>mall_id,city_id=>city_id,province_id=>province_id,order=>money|pay=>money]
     * @author hpei
     * @return bool
     */
    public static function saveData($data) {
        try {
            $mall_id = $data['mall_id'];
            $city_id = $data['city_id'];
            $province_id = $data['province_id'];
            if (!$mall_id || !$city_id || !$province_id) {
                // self::$static_error = 'mall_id  city_id province_id 为空';
                // return false;
                return true;
            }
            self::getDefaultRegion($mall_id);
            $region = self::getOne([['=','mall_id', $mall_id], ['=', 'city_id', $city_id]]);
            $config = \Yii::$app->getComponents()['redis'];
            unset($config['class']);
            $redis = new Connection($config);
            $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::REGION_STATISTICS, 'mall_id_' . $mall_id);
            $regionStatistics = $redis->get($cacheKey);
            $order_money = (isset($data['order']) && !empty($data['order'])) ? $data['order'] : 0;
            $order_num = (isset($data['order']) && !empty($data['order'])) ? 1 : 0;
            $pay_money = (isset($data['pay']) && !empty($data['pay'])) ? $data['pay'] : 0;
            $pay_num = (isset($data['pay']) && !empty($data['pay'])) ? 1 : 0;
            if (!empty($region)) {
                $region->order_money += $order_money;
                $region->order_num += $order_num;
                $region->pay_money += $pay_money;
                $region->pay_num += $pay_num;
                $region->save();
            } else {
                $regionData = array_column(self::$regionData, null, 'city_id');
                $regionData[$city_id]['order_money'] = $order_money;
                $regionData[$city_id]['order_num'] = $order_num;
                $regionData[$city_id]['pay_money'] = $pay_money;
                $regionData[$city_id]['pay_num'] = $pay_num;
                Yii::$app->db->createCommand()->batchInsert(self::tableName(), ['mall_id', 'province_id', 'city_id', 'order_money', 'order_num', 'pay_money', 'pay_num'], $regionData)->execute();
            }
            //有缓存在缓存上递增数据，没有缓存读取数据库
            if (!empty($regionStatistics)) {
                $regionStatistics = json_decode($regionStatistics, true);
                $regionStatistics = array_column($regionStatistics, null, 'province_id');
                if(!empty($regionStatistics[$province_id]['order_money'])){
                    $regionStatistics[$province_id]['order_money'] += $order_money;
                }else{
                    $regionStatistics[$province_id]['order_money'] = $order_money;
                }
                if(!empty($regionStatistics[$province_id]['order_num'])){
                    $regionStatistics[$province_id]['order_num'] += $order_num;
                }else{
                    $regionStatistics[$province_id]['order_num'] = $order_num;
                }

                if(!empty($regionStatistics[$province_id]['pay_money'])){
                    $regionStatistics[$province_id]['pay_money'] += $pay_money;
                }else{
                    $regionStatistics[$province_id]['pay_money'] = $pay_money;
                }
                if(!empty($regionStatistics[$province_id]['pay_num'])){
                    $regionStatistics[$province_id]['pay_num'] += $pay_num;
                }else{
                    $regionStatistics[$province_id]['pay_num'] = $pay_num;
                }
            } else {
                $regionStatistics = self::getProvinceStatistics($mall_id);
            }
            self::setCache($mall_id, array_values($regionStatistics));
            return true;
        } catch (\Exception $e) {
            self::$static_error = $e->getMessage().$e->getFile().$e->getLine();
            return false;
        }
            
    }


    /**
     * 设置缓存
     * 
     * @param int mall_id
     * @param array|string|int $regionStatistics
     * @return bool
     */
    public static function setCache($mall_id, $regionStatistics) {
        $config = \Yii::$app->getComponents()['redis'];
        unset($config['class']);
        $redis = new Connection($config);
        try {
            $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::REGION_STATISTICS, 'mall_id_' . $mall_id);
            $redis->del($cacheKey);
            if (is_array($regionStatistics)) {
                $redis->set($cacheKey, json_encode($regionStatistics, JSON_UNESCAPED_UNICODE));
            } else {

            }
            $redis->close();
        } catch (\Exception $e) {
            Yii::error('设置区域统计缓存异常:'.$e->getMessage());
            $redis->close();
        }
    }

    /**
     * 生成缓存数据 如果数据库没有数据则入库
     */
    public static function createCacheData($mall_id) {
        try {
            $regionStatistics = self::find()
                ->where(['mall_id' => $mall_id])
                ->andWhere(['in', 'province_id', self::$provinceIds])
                ->select(['province_id', 'pay_money'])->groupBy('province_id')->asArray()->all();
            //如果不存在给默认值，并把默认值入库
            if (empty($regionStatistics)) {
                $regionStatistics = self::$provinceStatistics;
                Yii::$app->db->createCommand()->batchInsert(self::tableName(), ['mall_id', 'province_id', 'city_id', 'order_money', 'order_num', 'pay_money', 'pay_num'], self::$regionData)->execute();
            }
            return $regionStatistics;
        } catch (\Exception $e) {
            throw new \Exception('地区缓存。生成缓存数据' . $e->getMessage() . ',行数:' . $e->getLine());
        }
    }


    /**
     * 设置默认区域
     * 
     * @param array regionData 入库的数据
     * @param array provinceIds 省份ID
     * @param array provinceStatistics 展示的默认数据
     * @return void
     */
    public static function getDefaultRegion($mall_id) {
        $regionList = Region::find()
            ->where(['level' => [1, 2]])
            ->select(['name', 'id', 'level', 'parent_id', new Expression('0 as pay_money')])
            ->asArray()->all();
        $name = [];
        $regionData = [];
        $provinceIds = [];
        $provinceStatistics = [];
        array_walk($regionList, function($region) use(&$provinceIds, &$provinceStatistics, &$regionData, &$name, $mall_id) {
            if ($region['level'] == 2) {
                $regionData[] = [
                    'mall_id' => $mall_id, 
                    'province_id' => $region['parent_id'], 
                    'city_id' => $region['id'], 
                    'order_money' => 0, 
                    'order_num' => 0, 
                    'pay_money' => 0, 
                    'pay_num' => 0];
            }
            if ($region['level'] == 1) {
                $provinceIds[] = $region['id'];
                $name[$region['id']] = $region['name'];
                $region['province_id'] = $region['id'];
                unset($region['level'], $region['parent_id'], $region['name'], $region['id']);
                $provinceStatistics[] = $region;
            }
        });
        self::$provinceName = $name;
        self::$regionData = $regionData;
        self::$provinceIds = $provinceIds;
        self::$provinceStatistics = $provinceStatistics;
    }

    /**
     * 统计数据添加省份名称
     * 
     * @param array provinceStatistics
     */

    public static function setProvinceName($provinceStatistics) {
        $provinceName = self::$provinceName;
        array_walk($provinceStatistics, function(&$region) use($provinceName) {
            $region['name'] = $provinceName[$region['province_id']]??'';
        });
        return $provinceStatistics;
    }

    /**
     * 
     */
    public static function getProvinceStatistics($mall_id) {
        return self::find()->where(['mall_id' => $mall_id])
            ->select(['province_id', 'sum(pay_money) pay_money'])
            ->groupBy('province_id')->asArray()->all();
    }

    /**
     * 重新设置缓存 
     */
    public static function resetCache($mall_id) {
        try {
            self::getDefaultRegion($mall_id);
            $regionStatistics = self::createCacheData($mall_id);
            self::setCache($mall_id, $regionStatistics);
        } catch (\Exception $e) {
            throw new \Exception($e->getMessage());
        }       
    }

}