<?php

namespace App\Imports;
use App\Models\AdmissionNewStudents;
use App\Models\Config;
use App\Models\SecondaryCollege;
use App\Models\Speciality;
use Illuminate\Support\Collection;
use Illuminate\Database\Eloquent\Model;
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Concerns\ToCollection;
use Maatwebsite\Excel\Concerns\WithHeadingRow;
use Maatwebsite\Excel\Concerns\WithBatchInserts;
use Maatwebsite\Excel\Concerns\WithChunkReading;
use Maatwebsite\Excel\Imports\HeadingRowFormatter;
use Illuminate\Support\Facades\DB;
use Throwable;
HeadingRowFormatter::
default('none');

class OldStudentFirstSheetImport implements ToCollection, WithBatchInserts, WithChunkReading, WithHeadingRow, ToModel
{
    private $round;

    public function __construct(int $round)
    {
        $this->round = $round;
    }


    /**
     * @param array $row
     *
     * @return Model|Model[]|null
     */
    public function model(array $row)
    {

        //写导入的逻辑关系
//        $user = Orderuser::where('phone', '=', $row['电话'])->where('name', '=',$row['姓名'])->first();

//        dd($row);
        // // 数据库对应的字段
        return null;
    }

    public function collection(Collection $rows)
    {
        //导入的表格所有数据都在此处显示
        $list = $rows->toArray();
        if(empty($list)){
            throw new \Exception("请勿上传空文件");
        }

        //入库
        $insertData = [];

        foreach($list as $key => $item){
            $arr = [
                "mobile" => trim($item["手机号"]),
                "name" => trim($item["姓名"]),
                "idCard" => trim($item["身份证"]),
                "admission_college" => trim($item["录取学院"]),
                "admitted_major" => trim($item["录取专业"]),
                "admission_code" => trim($item["学号"]),
                "is_five_year" => trim($item["是否五年一贯制"]),
                "create_time" => time(),
                "annual_session" => trim($item["学年"]),
                "is_new_student" => AdmissionNewStudents::IS_NEW_STUDENT_NO,
                "old_student_bed_info" => trim($item["床位信息"]),
                "is_push" => AdmissionNewStudents::IS_PUSH_YES, //老生标记已推送
                "is_register" => AdmissionNewStudents::REGISTER_YES, //老生标记已注册
            ];

            //检测必有字段是否为空
            if(empty($arr["annual_session"]) || empty($arr["old_student_bed_info"])){
                throw new \Exception("学年及床位信息字段不能为空");
            }

            //检测性别
            if(trim($item["性别"]) == "男"){
                $arr["sex"] = 1;
            }else if(trim($item["性别"]) == "女"){
                $arr["sex"] = 2;
            }

            //检测专业
            //取出所有二级学院
            $secondaryCollegeList = SecondaryCollege::query()->where([
                "status" => SecondaryCollege::STATUS_YES
            ])->get()->toArray();
            if(empty($secondaryCollegeList)){
                throw new \Exception("识别失败,二级学院信息为空");
            }

            //以学院名作为键
            $secondaryCollegeList = array_column($secondaryCollegeList, null, "name");

            //初识化专业id
            $speciality_id = 0;

            //取出指定学院下面的专业
            $specialityInfo = Speciality::query()->where([
                "secondary_college_id" => $secondaryCollegeList[trim($item["录取学院"])]["id"],
                "speciality_name" => trim($item["录取专业"]),
                "status" => Speciality::STATUS_YES
            ])->first();
            if(!empty($specialityInfo)){
                $speciality_id = $specialityInfo->id;
            }

            //专业ID为空时提示
            if(empty($speciality_id)){
                throw new \Exception("识别失败,请检查二级学院或专业名称是否和后台录入的一致");
            }

            $arr["speciality_id"] = $speciality_id;

            array_push($insertData, $arr);
        }

        DB::beginTransaction();
        try {

            $chunk_list = array_chunk($insertData, 1000);

            foreach ($chunk_list as $new_list) {
                $add = AdmissionNewStudents::query()->insert($new_list);
                if($add != count($new_list)){
                    throw new \Exception("导入数据失败,请重试");
                }
            }

            DB::commit();
        }catch (\PDOException $e){
            DB::rollBack();
            if ($e->getCode() === '23000') {
                // 唯一性约束错误处理逻辑
                $errorMessage = "导入表格中存在已入库学生信息,请勿重复导入";
                // 可以根据需要进行相关处理
                throw new \Exception($errorMessage);
            } else {
                // 其他类型的错误处理逻辑
                throw new \Exception("导入数据失败,请重试");
            }
        }catch (\Exception $e){
            DB::rollBack();
            throw new \Exception("导入数据失败,请重试");
        }

    }


    //批量导入1000条
    public function batchSize(): int
    {
        return 1000;
    }

    //以1000条数据基准切割数据
    public function chunkSize(): int
    {
        return 1000;
    }
}