<?php

namespace App\Models;

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

class ClassSession extends Model
{
    use HasFactory, SoftDeletes;

    protected $fillable = [
        'course_id',
        'session_number',
        'date',
        'start_time',
        'end_time',
    ];

    protected $casts = [
        'date' => 'date',
        'session_number' => 'integer',
        'start_time' => 'datetime',
        'end_time' => 'datetime',
    ];

    public function course(): BelongsTo
    {
        return $this->belongsTo(Course::class);
    }

    public function materials(): HasMany
    {
        return $this->hasMany(Material::class);
    }

    public function assignments(): HasMany
    {
        return $this->hasMany(Assignment::class);
    }

    public function attendances(): HasMany
    {
        return $this->hasMany(Attendance::class);
    }
}