<?php

namespace common\models\statistics;

use common\models\base\BaseActiveRecord;
use common\enums\StatusEnum;
use common\enums\RedisKeyEnum;
use common\models\user\UserLevel;
use Yii;
use yii\redis\Connection;

/**
 *
 * @property int $mall_id
 * @property int $browse_num
 * @property int $follow_num
 * @property json $upgrade_level
 * @property int $date
 */
class GlobalStatistics extends BaseActiveRecord
{

    private static $fields = ['browse_num' => 0, 'follow_num' => 0, 'visitor_num' => 0, 'register_num' => 0,'upgrade_level' => '{}'];
    /**
     * {@inheritdoc}
     */
    public static function tableName()
    {
        return '{{%global_statistics}}';
    }

    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['mall_id', 'browse_num', 'visitor_num', 'follow_num', 'register_num', 'date'], 'required'],
            [['mall_id', 'browse_num', 'visitor_num', 'follow_num', 'register_num', 'goods_num', 'date'], 'integer'],
            [['upgrade_level'], 'safe'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'mall_id' => '商城id',
            'browse_num' => '浏览量',
            'follow_num' => '关注数',
            'visitor_num' => '访客量',
            'register_num' => '注册数',
            'goods_num' => '商品数量',
            'upgrade_level' => '用户等级',
            'date' => '日期',
        ];
    }

    public function behaviors() {
        return [];
    }

    /**
     * 读取数据
     *
     * @param int $mall_id
     * @author hpei
     * @return array
     */
    public static function getData($mall_id) {
        try {
            $redis = \Yii::$app->redis;
            $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::GLOBAL_STATISTICS, 'mall_id_'. $mall_id);
            $globalStatistics = $redis->hgetall($cacheKey);
            $levels = UserLevel::getListIndexByLevelColumn($mall_id);
            if (empty($globalStatistics)) {
                $globalStatistics = self::createCacheData($mall_id, $levels);
                self::setCache($mall_id, $globalStatistics);
            } else {
                $num = 0;
                $fields = [];
                $values = [];
                foreach ($globalStatistics as $val) {
                    if ($num % 2 === 0) {
                        $fields[] = $val;
                    } else {
                        $values[] = $val;
                    }
                    $num++;
                }
                $globalStatistics = array_combine($fields, $values);
                $globalStatistics['yesterday_upgrade_level'] = json_decode($globalStatistics['yesterday_upgrade_level'], true);
                $globalStatistics['today_upgrade_level'] = json_decode($globalStatistics['today_upgrade_level'], true);
            }
            return self::getShowData($globalStatistics, $levels);
        } catch (\Exception $e) {
            Yii::error('读取全局统计缓存异常：' . $e->getMessage());
            if (isset($defaultData) && isset($values)) {
                return self::getShowData($defaultData, $levels);
            }
            throw new \Exception($e->getMessage() . ',行数:' . $e->getLine());
        }
    }

    /**
     * 保存数据
     *
     * @param int $mall_id
     * @param array $data [browse_num=>browse_num|follow_num=>follow_num|register_num=>register_num|upgrade_level=>[level=>num]]
     * @author hpei
     * @return bool
     */
    public static function saveData($mall_id, $data) {
        try {
            $levels = UserLevel::getListIndexByLevelColumn($mall_id);
            $defaultData = self::getDefaultStatistics($levels);
            $date = date('Ymd');
            $globalMdl = self::find()->where(['mall_id' => $mall_id, 'date' => $date])->one();
            if (empty($globalMdl)) {
                $globalMdl = new self();
                $globalMdl->mall_id = $mall_id;
                $globalMdl->date = $date;
                $globalMdl->load($defaultData, '');
            }
            //循环赋值
            foreach ($data as $key => $val) {
                if ($key == 'upgrade_level' && isset($data['upgrade_level']) && !empty($data['upgrade_level'])) {
                    //循环默认等级，即使当天新增了等级，也会设置数量为0
                    foreach ($defaultData['upgrade_level'] as $level => $num) {
                        if (isset($data['upgrade_level'][$level])) {
                            if (!isset($globalMdl->upgrade_level[$level])) {
                                $defaultData['upgrade_level'][$level] = $data['upgrade_level'][$level];
                            } else {
                                $defaultData['upgrade_level'][$level] = $globalMdl->upgrade_level[$level] + $data['upgrade_level'][$level];
                            }
                        }
                    }
                    $globalMdl->upgrade_level = $defaultData['upgrade_level'];
                } else {
                    $globalMdl->{$key} += $val;
                }
            }

            if (!$globalMdl->save()) {
                self::$static_error = $globalMdl->getErrorMessage();
                return false;
            }
            $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::GLOBAL_STATISTICS, 'mall_id_'. $mall_id);
            $config = \Yii::$app->getComponents()['redis'];
            unset($config['class']);
            $redis = new Connection($config);
            //是否要设置昨日数据缓存
            $isSetCache = true;
            if (!$redis->hget($cacheKey, 'yesterday_register_num') || !$redis->hget($cacheKey, 'upgrade_level') || !$redis->hget($cacheKey, 'follow_num')) {
                $isSetCache = false;
            }
            $isSetCache = $redis->hget($cacheKey, 'yesterday_register_num') ? true : false;
            //组装缓存数据
            $globalStatistics = [];
            foreach ($globalMdl as $field => $value) {
                if (isset(self::$fields[$field])) {
                    $globalStatistics['today_' . $field] = $value;
                    if ($isSetCache === false) {
                        $globalStatistics['yesterday_' . $field] = $defaultData[$field];
                    }
                }
            }
            $user_num = $redis->hget($cacheKey, 'user_num');
            $globalStatistics['user_num'] = $user_num ?? 0;
            if (isset($globalMdl->register_num) && $globalMdl->register_num != 0) {
                if ($user_num) {
                    $globalStatistics['user_num'] += 1;
                } else {
                    $globalStatistics['user_num'] = self::find()->where(['mall_id' => $mall_id])->sum('register_num') ?? 0;
                }
            }
            self::setCache($mall_id, $globalStatistics);
            return true;
        } catch (\Exception $e) {
            self::$static_error = '设置全局统计错误,' . $e->getMessage() . ',行数' . $e->getLine();
            return false;
        }
    }


    /**
     * 设置缓存
     *
     * @param int $mall_id
     * @param array $globalStatistics 统计数据
     * @author hpei
     * @return void
     */
    public static function setCache($mall_id, $globalStatistics) {
        $config = \Yii::$app->getComponents()['redis'];
        unset($config['class']);
        $redis = new Connection($config);
        $cacheKey = RedisKeyEnum::suffix(RedisKeyEnum::GLOBAL_STATISTICS, 'mall_id_'. $mall_id);
        try {
            //hmset
            foreach ($globalStatistics as $field => $value) {
                $value = is_array($value) ? json_encode($value, JSON_UNESCAPED_UNICODE) : $value;
                $redis->hset($cacheKey, $field, $value);
            }
            $redis->expire($cacheKey, strtotime("+1 day 0:0:0") - time());
            $redis->close();
        } catch (\Exception $e) {
            Yii::error('设置全局统计缓存异常:'.$e->getMessage());
            $redis->close();
        }
    }

    /**
     * 生成缓存数据 如果数据库没有数据则入库
     *
     * @param int $mall_id
     * @param array $level common\models\user\UserLevel
     * @return array
     */
    public static function createCacheData($mall_id, $levels) {
        try {
            $defaultData = self::getDefaultStatistics($levels);
            $yesterday = date('Ymd', strtotime("-1 day"));
            $today = date('Ymd');
            $globalMdl = self::find()->select(['id', 'browse_num', 'visitor_num', 'follow_num', 'register_num', 'goods_num', 'upgrade_level', 'date'])
                ->where(['mall_id' => $mall_id])->andWhere(['in', 'date', [$yesterday, $today]])->indexBy('date')->limit(2)->all();
            $globalStatistics = [];
            $insertData = $defaultData;
            if (!isset($globalMdl[$yesterday])) {
                $yesterdayModel = new self();
                $yesterdayModel->loadDefaultValues();
                $insertData['date'] = $yesterday;
                $insertData['mall_id'] = $mall_id;
                $yesterdayModel->load($insertData, '');
                $yesterdayModel->save();
                $yesterdayStatistics = $defaultData;
            } else {
                $yesterdayStatistics = $globalMdl[$yesterday];
            }
            if (!isset($globalMdl[$today])) {
                $todayModel = new self();
                $todayModel->loadDefaultValues();
                $insertData['date'] = $today;
                $insertData['mall_id'] = $mall_id;
                $todayModel->load($insertData, '');
                $todayModel->save();
                $todayStatistics = $defaultData;
            } else {
                $todayStatistics = $globalMdl[$today];
            }
            array_walk($defaultData, function($defaultValue, $field) use($levels, $todayStatistics, $yesterdayStatistics, &$globalStatistics) {
                if ($field == 'upgrade_level') {
                    $globalStatistics['today_upgrade_level'] = self::removeLevel($todayStatistics['upgrade_level'], $levels);
                    $globalStatistics['yesterday_upgrade_level'] = self::removeLevel($yesterdayStatistics['upgrade_level'], $levels);
                } else {
                    $globalStatistics['today_' . $field] = $todayStatistics[$field];
                    $globalStatistics['yesterday_' . $field] = $yesterdayStatistics[$field];
                }
            });
            $user_num = self::find()->where(['mall_id' => $mall_id])->sum('register_num');
            $globalStatistics['user_num'] = $user_num;
            $totalData = self::find()->where(['mall_id' => $mall_id])
                ->select(['sum(browse_num) total_browse_num', 'sum(visitor_num) total_visitor_num', 'sum(follow_num) total_follow_num'])->asArray()->one();
            if (empty($totalData)) {
                $globalStatistics['total_browse_num'] = 0;
                $globalStatistics['total_visitor_num'] = 0;
                $globalStatistics['total_follow_num'] = 0;
            } else {
                $globalStatistics['total_browse_num'] = $totalData['total_browse_num'];
                $globalStatistics['total_visitor_num'] = $totalData['total_visitor_num'];
                $globalStatistics['total_follow_num'] = $totalData['total_follow_num'];
            }
            return $globalStatistics;
        } catch (\Exception $e) {
            throw new \Exception('全局缓存。生成缓存数据' . $e->getMessage() . ',行数:' . $e->getLine());
        }
    }

    /**
     * 默认数据
     *
     * @param int mall_id
     * @param array $levels common\models\user\UserLevel
     * @param bool $day_data 是否分别设置昨天，今天数据
     * @author hpei
     * @return array
     */
    public static function getDefaultStatistics($levels, $day_data = false) {
        $upgrade_level = [];
        foreach ($levels as $level => $levelName) {
            $upgrade_level[$level] = 0;
        }
        $defaultData = self::$fields;
        $defaultData['upgrade_level'] = $upgrade_level;
        return $defaultData;
    }


    /**
     * 排除写入统计表后删除的等级
     *
     * @param array $upgradeLevel 要筛选的等级 [level=>level_num]
     * @param array $levels common\models\user\UserLevel
     * @author hpei
     * @return array
     */
    public static function removeLevel($upgradeLevel, $levels) {
        $newUpgradeLevel = [];
        foreach ($levels as $level => $levelName) {
            if (isset($upgradeLevel[$level])) {
                $newUpgradeLevel[$level] = $upgradeLevel[$level];
            } else {
                $newUpgradeLevel[$level] = 0;
            }
        }
        ksort($newUpgradeLevel);
        return $newUpgradeLevel;
    }

    /**
     * 添加注册用户数量
     *
     * @param int $mall_id
     */
    public static function increaseRegisterNum($mall_id) {
        try {
            $date = date('Ymd');
            $globalMdl = self::find()->where(['mall_id' => $mall_id, 'date' => $date])->one();
            if (empty($globalMdl)) {
                $globalMdl = new self();
                $levels = UserLevel::getListIndexByLevelColumn($mall_id);
                $defaultData = self::getDefaultStatistics($levels);
                $defaultData['mall_id'] = $mall_id;
                $defaultData['date'] = $date;
                $globalMdl->load($defaultData, '');
                $globalMdl->register_num = 1;
            } else {
                $globalMdl->register_num += 1;
            }
            $globalMdl->save();
            return true;
        } catch (\Exception $e) {
            self::$static_error = $e->getMessage();
            return false;
        }
    }

    /**
     * 发布商品
     */
    public static function publishGoods($mall_id) {
        try {
            $date = date('Ymd');
            $globalMdl = self::find()->select(['goods_num'])->where(['mall_id' => $mall_id, 'date' => $date])->one();
            if (empty($globalMdl)) {
                $globalMdl = new self();
                $levels = UserLevel::getListIndexByLevelColumn($mall_id);
                $defaultData = self::getDefaultStatistics($levels);
                $defaultData['mall_id'] = $mall_id;
                $defaultData['date'] = $date;
                $globalMdl->load($defaultData, '');
                $globalMdl->goods_num = 1;
            } else{
                $globalMdl->goods_num += 1;
            }
            if (!$globalMdl->save()) {
                self::$static_error = $globalMdl->getErrorMessage();
                return false;
            }
            return true;
        } catch (\Exception $e) {
            self::$static_error = $e->getMessage();
            return true;
        }
    }


    /**
     * 返回首页最终展示的数据
     */
    public static function getShowData($globalStatistics, $levels) {
        $list = [];
        foreach ($levels as $level => $levelName) {
            $proportion = 100;
            if(!empty($globalStatistics['yesterday_upgrade_level'][$level]) && !empty($globalStatistics['today_upgrade_level'][$level])){
                $proportion = ($globalStatistics['today_upgrade_level'][$level] - $globalStatistics['yesterday_upgrade_level'][$level])/$globalStatistics['yesterday_upgrade_level'][$level] * 100;
            }else{
                if(empty($globalStatistics['today_upgrade_level'][$level])) $proportion = 0;
                if(empty($globalStatistics['yesterday_upgrade_level'][$level])) $proportion = 0;

            }

            $list[] = ['id' => $level,
                'name' => $levelName,
                'today_num' => $globalStatistics['today_upgrade_level'][$level],
                'yesterday_num' => $globalStatistics['yesterday_upgrade_level'][$level],
                'proportion' =>$proportion
            ];
        }
        unset($globalStatistics['yesterday_upgrade_level'],$globalStatistics['today_upgrade_level']);
        $globalStatistics['level_list'] = $list;
        return $globalStatistics;
    }

    /**
     * 重新生成缓存
     */
    public static function resetCache($mall_id) {
        try {
            $levels = UserLevel::getListIndexByLevelColumn($mall_id);
            $globalStatistics = self::createCacheData($mall_id, $levels);
            self::setCache($mall_id, $globalStatistics);
        } catch (\Exception $e) {
            throw new \Exception($e->getMessage());
        }
    }
}