<?php

namespace App\Models;

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

class ChecklistFormula extends Model
{
    use HasFactory;

    protected $fillable = [
        'checklist_template_id',
        'checklist_section_id',
        'result_token',
        'label',
        'expression',
        'unit',
        'guard_div_zero',
        'order',
    ];

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

    public function template(): BelongsTo
    {
        return $this->belongsTo(ChecklistTemplate::class, 'checklist_template_id');
    }

    public function section(): BelongsTo
    {
        return $this->belongsTo(ChecklistSection::class, 'checklist_section_id');
    }
}