<?php

namespace App\Models\Qualitys;

use App\Models\Commons\File;
use App\Traits\Auditable;
use App\Traits\BelongsToTenant;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\MorphMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class ChecklistTemplate extends Model
{
    use Auditable, BelongsToTenant, SoftDeletes;

    protected $table = 'checklist_templates';

    protected $fillable = [
        'tenant_id',
        'name',
        'type',
        'categories',
        'options',
        'created_by',
        'updated_by',
    ];

    protected $casts = [
        'categories' => 'array',
        'options' => 'array',
    ];

    public function creator(): BelongsTo
    {
        return $this->belongsTo(\App\Models\User::class, 'created_by');
    }

    public function updater(): BelongsTo
    {
        return $this->belongsTo(\App\Models\User::class, 'updated_by');
    }

    /**
     * 점검항목별 연결 파일 (files 테이블 polymorphic)
     * document_type = 'checklist_template', document_id = this.id
     * field_key = sub_item_id (e.g. 'cat-1-1')
     */
    public function documents(): MorphMany
    {
        return $this->morphMany(File::class, 'document', 'document_type', 'document_id');
    }

    /**
     * 특정 항목의 파일 조회
     */
    public function documentsForItem(string $subItemId)
    {
        return $this->documents()->where('field_key', $subItemId);
    }

    /**
     * categories JSON에서 모든 sub_item_id 추출
     */
    public function getAllSubItemIds(): array
    {
        $ids = [];
        foreach ($this->categories ?? [] as $category) {
            foreach ($category['subItems'] ?? [] as $subItem) {
                $ids[] = $subItem['id'];
            }
        }

        return $ids;
    }
}