<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;


class Tugas extends Model
{
    use HasFactory;

    protected $table = 'tugas';

    protected $fillable = [
        'materi_id',
        'judul',
        'deskripsi',
        'file',
        'deadline', // walau ini nullable dan biasanya null karena deadline per kelas
    ];
public function tugasKelas(): HasMany
{
    return $this->hasMany(\App\Models\TugasKelas::class);
}
    // Relasi ke Materi
    public function materi()
    {
        return $this->belongsTo(Materi::class, 'materi_id');
    }

    // Relasi many-to-many ke Kelas lewat pivot tugas_kelas
    public function kelas()
    {
        return $this->belongsToMany(Kelas::class, 'tugas_kelas')
                    ->withPivot('deadline')
                    ->withTimestamps();
    }

    // Relasi ke jawaban siswa (pengumpulan tugas)
    public function pengumpulan()
    {
        return $this->hasMany(TugasSiswa::class, 'tugas_id');
    }
}