<?php
// +----------------------------------------------------------------------
// | Niucloud-admin 企业快速开发的多应用管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud.com
// +----------------------------------------------------------------------
// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace app\service\api\apiService;

use app\model\campus_person_role\CampusPersonRole;
use app\model\course_schedule\CourseSchedule;
use app\model\person_course_schedule\PersonCourseSchedule;
use app\model\six_speed\SixSpeed;
use app\model\student_course_usage\StudentCourseUsage;
use app\model\student\Student;
use app\model\assignment\Assignment;
use app\model\course\Course;
use app\model\student_courses\StudentCourses;
use core\base\BaseApiService;
use DateTime;
use think\Model;
use think\facade\Db;

/**
 * 员工服务层
 * Class MemberService
 * @package app\service\api\member
 */
class CourseService extends BaseApiService
{
    public function __construct()
    {
        parent::__construct();
        $this->model = new Course();
    }

    //课程列表
    public function list($id,$data)
    {
        $campus_person_role = new CampusPersonRole();
        $where = [];
        if ($data['schedule_date']) {
            $where[] = ['course_date','=', $data['schedule_date']];
        }

        $campus_id = $campus_person_role->where(['person_id' => $id])->column('campus_id');

        $CourseSchedule = new CourseSchedule();
        $search_model = $CourseSchedule
            ->where('campus_id','in',$campus_id)
            ->where($where)
            ->with(['course' => function($query) {
                $query->select();
            },'venue' => function($query) {
                $query->select();
            },'campus','studentCourses']);
        $list = $this->pageQuery($search_model);
        foreach ($list['data'] as $k => $v) {
            $student = Db::name('person_course_schedule')
                ->alias('pcs')
                ->where('pcs.schedule_id', $v['id']) // 建议加上表别名避免冲突
                ->join('school_student st', 'pcs.student_id = st.id')
                ->join('school_customer_resources cr', 'st.user_id = cr.id')
                ->join('school_member sm', 'cr.member_id = sm.member_id')
                ->field('st.name, sm.headimg as avatar') // 👈 正确方式取字段
                ->select();
            $list['data'][$k]['student'] = $student;
        }
        return $list;
    }
    //获取课程详情
    public function info($data)
    {
        $school_six_speed = new SixSpeed();
        $CourseSchedule = new CourseSchedule();
        $search_model = $CourseSchedule
            ->where('id', $data)
            ->with(['course' => function($query) {
                $query->select();
            },'venue' => function($query) {
                $query->select();
            },'coach' => function($query) {
                $query->select();
            }]);
        $list = $search_model->find();
        $student = Db::name('person_course_schedule')
            ->alias('pcs')
            ->where('pcs.schedule_id', $list['id'])
            ->join('school_student st', 'pcs.student_id = st.id')
            ->join('school_customer_resources cr', 'st.user_id = cr.id')
            ->join('school_member sm', 'cr.member_id = sm.member_id')
            ->field('st.name, sm.headimg as avatar')
            ->select();
        $list['student'] = $student;
        $student_courses = Db::name('student_courses')
            ->alias('sc')
            ->where('sc.course_id', $list['id'])
            ->join('school_student_course_usage sscu', 'sc.id = sscu.student_course_id')
            ->field('sc.student_id,sc.end_date,sc.end_date,sc.start_date,sc.course_id')
            ->select()->toArray();


        foreach ($student_courses as &$v){
            $student = Db::name('student')
                ->alias('st')
                ->where('st.id', $v['student_id'])
                ->join('school_customer_resources cr', 'st.user_id = cr.id')
                ->join('school_member sm', 'cr.member_id = sm.member_id')
                ->field('st.name, sm.headimg as avatar,cr.id as resources_id,cr.source')
                ->find();
            if($student){
                $v['school_six_speed'] = $school_six_speed->where(['staff_id' => $student['resources_id']])->find();

            }else{
                $v['school_six_speed'] = [];
            }
            $v['source'] = get_dict_value("source",$student['source']);
            $v['name'] = $student['name'];
            $v['avatar'] = $student['avatar'];
        }
        $list['student_courses'] = $student_courses;

        $Assignment = new Assignment();
        $search_model = $Assignment->where('course_id', $data)
            ->with(['student' => function($query) {
                $query->with(['customerResources' => function($query) {
                    $query->with(['member' => function($query) {
                        $query->select();
                    }]);
                }]);
            }]);
        $search_model_res = $search_model->select()->toArray();
        $groupedByStatus1 = [];
        $groupedByStatus2 = [];
        $groupedByStatus3 = [];

        foreach ($search_model_res as $item) {
            if ($item['status'] == 1){
                array_push($groupedByStatus1,$item);
            } else if ($item['status'] == 2){
                array_push($groupedByStatus2,$item);
            } else if ($item['status'] == 3){
                array_push($groupedByStatus3,$item);
            }
        }
        $list['groupedByStatus1'] = $groupedByStatus1;
        $list['groupedByStatus2'] = $groupedByStatus2;
        $list['groupedByStatus3'] = $groupedByStatus3;
        return $list;
    }


    public function classList($data)
    {
        $CourseSchedule = new CourseSchedule();
        $search_model = $CourseSchedule
            ->where('coach_id', $data)
            ->with(['course' => function($query) {
                $query->with(['studentCourses' => function($query) {
                    $query->select();
                }]);
            },'venue' => function($query) {
                $query->select();
            },'coach' => function($query) {
                $query->select();
            },'campus']);
        $list = $this->pageQuery($search_model);
        foreach ($list['data'] as &$v){
            $student = Db::name('person_course_schedule')
                ->alias('pcs')
                ->where('pcs.schedule_id', $v['id'])
                ->join('school_student st', 'pcs.student_id = st.id')
                ->join('school_customer_resources cr', 'st.user_id = cr.id')
                ->join('school_member sm', 'cr.member_id = sm.member_id')
                ->field('st.name, sm.headimg as avatar')
                ->select();
            $v['student'] = $student;
        }
        foreach ($list['data'] as &$v) {
            $student_courses = Db::name('student_courses')
                ->alias('sc')
                ->where('sc.course_id', $v['id'])
                ->join('school_student_course_usage sscu', 'sc.id = sscu.student_course_id')
                ->field('sc.student_id,sc.end_date,sc.end_date,sc.start_date,sc.course_id')
                ->select()->toArray();
            $v['student_courses'] = $student_courses;
        }
        return $list;
    }

    //获取添加学员列表
    public function StudentList($id)
    {
        $StudentCourses = new StudentCourses();
        $PersonCourseSchedule = new PersonCourseSchedule();
        $student_arr = $PersonCourseSchedule->where('schedule_id',$id)->column('student_id');

        // 获取当前时间
        $now = date('Y-m-d H:i:s');

        // 查询end_date大于当前时间的课程记录
        $query = $StudentCourses->where('course_id', $id)
            ->where('end_date', '>', $now);
            
        if (!empty($student_arr)) {
            $query->whereNotIn('student_id', $student_arr);
        }
        
        $studentCourses = $query->field('student_id as value, resource_id')->select()->toArray();
        
        // 如果没有符合条件的记录，直接返回空数组
        if (empty($studentCourses)) {
            return [];
        }
        
        // 收集所有的resource_id
        $resourceIds = array_column($studentCourses, 'resource_id');
        $resourceIds = array_filter($resourceIds); // 过滤掉空值
        
        if (empty($resourceIds)) {
            return [];
        }
        
        // 查询客户资源表获取详细信息
        $resources = Db::name('customer_resources')
            ->whereIn('id', $resourceIds)
            ->field('id, name, source_channel, source, age')
            ->select()
            ->toArray();
            
        // 将资源信息与学生ID关联
        $result = [];
        foreach ($resources as $resource) {
            // 查找对应的学生ID
            foreach ($studentCourses as $course) {
                if ($course['resource_id'] == $resource['id']) {
                    // 源和来源渠道转换为字典值
                    $source = get_dict_value("source", $resource['source']);
                    $sourceChannel = get_dict_value("source_channel", $resource['source_channel']);
                    
                    $result[] = [
                        'value' => $course['value'],  // 学生ID
                        'resource_id' => $resource['id'],
                        'text' => $resource['name'],  // 学生姓名
                        'name' => $resource['name'],
                        'age' => $resource['age'],
                        'source' => $source,
                        'source_channel' => $sourceChannel,
                        'source_raw' => $resource['source'],
                        'source_channel_raw' => $resource['source_channel']
                    ];
                    break;
                }
            }
        }
        
        return $result;
    }

    public function addStudent($data)
    {
        $PersonCourseSchedule = new PersonCourseSchedule();
        $res = $PersonCourseSchedule->create($data);
        return $res;
    }


    public function delStudentCourse($data)
    {
        $StudentCourseUsage = new StudentCourseUsage();
        $StudentCourses = new StudentCourses();
        $StudentCourses_id = $StudentCourses->where('student_id',$data['student_id'])->where('course_id',$data['course_id'])->value('id');
        $PersonCourseSchedule_id = $StudentCourseUsage->where('student_course_id',$StudentCourses_id)->value('id');
        if ($PersonCourseSchedule_id) {
            $StudentCourseUsage->where('student_course_id',$StudentCourses_id)->delete();
            return true;
        } else {
            return false;
        }
    }

    public function getDate(array $baseDate)
    {
        $dates = [];

        $this_date = $baseDate['date'] ?: date('Y-m-d');

        $date = new DateTime($this_date);

        for ($i = -2; $i <= 4; $i++) {
            $tempDate = clone $date; // 避免修改原始对象
            $tempDate->modify("$i days");

            $status = false;
            if($baseDate['day'] == $tempDate->format('d')){
                $status = true;
            }else if(empty($baseDate['day'])){
                if($tempDate->format('Y-m-d') === date('Y-m-d')){
                    $status = true;
                }
            }
            $dates[] = [
                'date' => $tempDate->format('Y-m-d'),
                'day' => $tempDate->format('d'),
                'week' => getChineseWeekday($tempDate),
                'status' => $status
            ];
        }

        return ['dates' => $dates,'date' => $this_date];
    }


    public function listAll($data)
    {
        $where = [];
        if ($data['schedule_date']) {
            $where[] = ['course_date','=', $data['schedule_date']];
        }
        $CourseSchedule = new CourseSchedule();
        $list = $CourseSchedule
            ->where($where)
            ->with(['course' => function($query) {
                $query->select();
            },'venue' => function($query) {
                $query->select();
            },'campus','studentCourses'])
            ->select()->toArray();
        foreach ($list as $k => $v) {
            $student = Db::name('person_course_schedule')
                ->alias('pcs')
                ->where('pcs.schedule_id', $v['id']) // 建议加上表别名避免冲突
                ->join('school_student st', 'pcs.student_id = st.id')
                ->join('school_customer_resources cr', 'st.user_id = cr.id')
                ->join('school_member sm', 'cr.member_id = sm.member_id')
                ->field('st.name, sm.headimg as avatar') // 👈 正确方式取字段
                ->select();
            $list[$k]['student'] = $student;
        }
        return $list;
    }


    public function addSchedule(array $data){
        $CourseSchedule = new CourseSchedule();
        $personCourseSchedule = new PersonCourseSchedule();
        if($personCourseSchedule->where([
            'resources_id' => $data['resources_id'],
            'schedule_id' => $data['schedule_id']
        ])->find()){
            return fail("重复添加");
        }

        $personCourseSchedule->insert([
            'resources_id' => $data['resources_id'],
            'person_id' => $this->member_id,
            'person_type' => $data['person_type'],
            'schedule_id' => $data['schedule_id'],
            'course_date' => $data['course_date'],
            'time_slot' => $data['time_slot'],
        ]);
        $CourseSchedule->where(['id' => $data['schedule_id']])->dec("available_capacity")->update();
        return success("添加成功");

    }

    public function schedule_list(array $data){
        $personCourseSchedule = new PersonCourseSchedule();
        $list = $personCourseSchedule
            ->alias('a')
            ->join(['school_customer_resources' => 'b'],'a.resources_id = b.id','left')
            ->join(['school_course_schedule' => 'c'],'c.id = a.schedule_id','left')
            ->where('a.schedule_id',$data['schedule_id'])
            ->field("b.name,a.status,a.person_type,c.campus_id,b.id as resources_id,a.schedule_type,a.course_type")
            ->select()
            ->toArray();

        return $list;
    }

    public function schedule_del(array $data)
    {
        $personCourseSchedule = new PersonCourseSchedule();
        
        // 查询记录
        $record = $personCourseSchedule->where([
            'schedule_id' => $data['id'],
            'resources_id' => $data['resources_id']
        ])->find();
        
        if (!$record) {
            return fail('未找到相关记录');
        }
        
        // 根据person_type执行不同操作
        if ($record['person_type'] == 'customer_resource') {
            // 如果是客户资源类型，直接删除记录
            $personCourseSchedule->where([
                'schedule_id' => $data['id'],
                'resources_id' => $data['resources_id']
            ])->delete();
            
            // 更新课程安排表的可用容量
            $CourseSchedule = new CourseSchedule();
            $CourseSchedule->where(['id' => $record['schedule_id']])->inc("available_capacity")->update();
            
            return success('删除成功');
        } else if ($record['person_type'] == 'student') {
            // 如果是学生类型，更新状态为2并更新备注
            $personCourseSchedule->where([
                'id' => $data['id'],
                'resources_id' => $data['resources_id']
            ])->update([
                'status' => 2,
                'remark' => $data['remark']
            ]);
            
            return success('更新成功');
        } else {
            return fail('未知的人员类型');
        }
    }

    /**
     * 更新学员课程人员配置
     * @param array $data
     * @return array
     */
    public function updateStudentCoursePersonnel(array $data)
    {
        $res = [
            'code' => 0,
            'msg' => '更新失败',
            'data' => []
        ];

        try {
            // 开启事务
            Db::startTrans();
            
            $studentCourseId = $data['student_course_id'];
            $mainCoachId = $data['main_coach_id'] ?? null;
            $educationId = $data['education_id'] ?? null;
            $assistantIds = $data['assistant_ids'] ?? '';
            
            // 更新学员课程表
            $updateData = [
                'updated_at' => date('Y-m-d H:i:s')
            ];
            
            if ($mainCoachId !== null) {
                $updateData['main_coach_id'] = $mainCoachId;
            }
            
            if ($educationId !== null) {
                $updateData['education_id'] = $educationId;
            }
            
            if ($assistantIds !== '') {
                $updateData['assistant_ids'] = $assistantIds;
            }
            
            // 更新学员课程表
            $updateResult = Db::name('student_courses')
                ->where('id', $studentCourseId)
                ->update($updateData);
                
            if (!$updateResult) {
                Db::rollback();
                $res['msg'] = '更新学员课程配置失败';
                return $res;
            }
            
            // 提交事务
            Db::commit();
            
            $res = [
                'code' => 1,
                'msg' => '更新成功',
                'data' => [
                    'student_course_id' => $studentCourseId,
                    'main_coach_id' => $mainCoachId,
                    'education_id' => $educationId,
                    'assistant_ids' => $assistantIds
                ]
            ];
            
        } catch (\Exception $e) {
            Db::rollback();
            $res['msg'] = '更新学员课程人员配置异常：' . $e->getMessage();
        }
        
        return $res;
    }

}