<?php

namespace App\Livewire;

use Livewire\Component;
use App\Models\User;

class StudentsList extends Component {

	public $students;
	public $allSchoolPrefixs;
	public $schoolPrefix;


	public function mount() {
		$this->schoolPrefix = request()->query( 'school_prefix', null );
	}


	public function filterStudents() {
		if ( ! empty( $this->schoolPrefix ) ) {
			// $this->students = User::where('school_no', $_GET['school_no'])->get();
			$this->students = User::where( 'school_no', 'like', $this->schoolPrefix . '%' )->get();
		} else {
			$this->students = User::all();
		}
	}


	public function deleteStudent( $schoolNo ) {

		// 刪除學生
		User::where( 'school_no', $schoolNo )->delete();

		// 重新載入學生資料，確保前端更新
		$this->filterStudents();
	}


	public function render() {

		// get school prefix from all school_no[0:5]
		$this->allSchoolPrefixs = User::all()->map( function ($user) {
			return substr( $user->school_no, 0, 5 );
		} )->unique();

		$this->filterStudents();

		return view( 'livewire.students-list' )->layout( 'components.admin-layout' );

	}
}