<?php

namespace App\Models;

use App\Entities\BaseEntity;

//계층형구조구현용 모델(게시판,카테고리 등등)
abstract class BaseHierarchyModel extends BaseModel
{
    protected function __construct()
    {
        parent::__construct();
        $this->allowedFields = [
            ...$this->allowedFields,
            'grpno', 'grporder', 'grpdepth'
        ];
    }
    protected function getFields(array $fields = array(), array $skips = array()): array
    {
        //allowedFields에서 추가했으므로 Controller에는 적용되지 않게하기위함
        $skips = ['grpno', 'grporder', 'grpdepth', ...$skips];
        return parent::getFields($fields, $skips);
    }
    protected function getFieldFilters(array $fields = array(), array $skips = array()): array
    {
        //allowedFields에서 추가했으므로 Controller에는 적용되지 않게하기위함
        $skips = ['grpno', 'grporder', 'grpdepth', ...$skips];
        return parent::getFieldFilters($fields, $skips);
    }

    abstract function reply($parent_entity, array $formDatas): BaseEntity;

    protected function getFieldRule(string $field, array $rules): array
    {
        switch ($field) {
            case 'grpno':
            case 'grporder':
            case 'grpdepth':
                $rules[$field] = 'if_exist|numeric';
                break;
            default:
                $rules = parent::getFieldRule($field, $rules);
                break;
        }
        return $rules;
    }

    final protected function create_process($entity, array $formDatas)
    {
        $entity = parent::create_process($entity, $formDatas);
        //생성시는 grpno가 primarykey와 같음
        $this->builder()->set('grpno', $entity->getPrimaryKey());
        $this->builder()->where($this->primaryKey, $entity->getPrimaryKey());
        $this->builder()->update();
        return $entity;
    }

    final protected function reply_process($parent_entity, $entity, array $formDatas)
    {
        //부모의 그룹과 grpno가 같고, 부모의 grporder보다 1 큰것을 grporder+1을 해서 update
        //escape -> false옵션 반드시 있어야함
        $this->builder()->set('grporder', 'grporder+1', false);
        $this->builder()->where([
            'grpno' => $parent_entity->grpno,
            'grporder >' => $parent_entity->grporder
        ]);
        $this->builder()->update();
        //reply용 설정
        $entity->grpno = $parent_entity->grpno;
        $entity->grporder = $parent_entity->grporder + 1;
        $entity->grpdepth = $parent_entity->grpdepth + 1;
        return parent::create_process($entity, $formDatas);
    }
}