<?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;

class SchoolClass extends Model
{
    use HasFactory;

    protected $table = 'classes';

    protected $fillable = [
        'academic_year_id',
        'department_id',
        'name',
        'level',
        'homeroom_teacher',
        'capacity',
        'is_active',
    ];

    protected function casts(): array
    {
        return [
            'capacity' => 'integer',
            'is_active' => 'boolean',
        ];
    }

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

    /**
     * Scope: hanya kelas pada tahun ajaran yang sedang aktif.
     */
    public function scopeForActiveAcademicYear($query)
    {
        return $query->whereHas('academicYear', fn ($q) => $q->where('is_active', true));
    }

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

    public function students(): HasMany
    {
        return $this->hasMany(Student::class, 'class_id');
    }

    public function academicHistories(): HasMany
    {
        return $this->hasMany(StudentAcademicHistory::class, 'class_id');
    }
}