<?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 ChecklistItem extends Model
{
    use HasFactory;

    public const INPUT_TYPES = [
        'number' => 'Nombor',
        'text' => 'Teks',
        'textarea' => 'Teks Panjang',
        'select' => 'Senarai Pilihan',
        'checkbox' => 'Kotak Semak',
        'file_reference' => 'Rujukan Fail',
        'calculated' => 'Dikira Automatik',
    ];

    protected $fillable = [
        'checklist_section_id',
        'checklist_scope_id',
        'code',
        'formula_token',
        'label',
        'description',
        'input_type',
        'options',
        'unit',
        'is_required',
        'is_calculated',
        'formula',
        'order',
    ];

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

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

    public function scope(): BelongsTo
    {
        return $this->belongsTo(ChecklistScope::class, 'checklist_scope_id');
    }

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

    public function isNumeric(): bool
    {
        return in_array($this->input_type, ['number', 'calculated'], true);
    }
}