<?php

namespace App\Forms;

use App\Entities\CommonEntity;
use RuntimeException;

abstract class CommonForm
{
  private array $_attributes = [];
  protected function __construct() {}
  abstract public function getFormFields(): array;
  final public function setAttributes(array $attributes): void
  {
    $this->_attributes = $attributes;
  }
  final public function getAttribute(string $key): string
  {
    if (!array_key_exists($key, $this->_attributes)) {
      throw new RuntimeException(__METHOD__ . "에서 오류발생: {$key}에 해당하는 속성이 정의되지 않았습니다.");
    }
    return $this->_attributes[$key];
  }
  final public function getFormRules(string $action, array $fields, array $rules = []): array
  {
    foreach ($fields as $field) {
      $rules = $this->getFormRule($action, $field, $rules);
    }
    return $rules;
  }
  final public function getFormOptions(string $action, array $fields, array $options = []): array
  {
    foreach ($fields as $field) {
      $options = $this->getFormOption($action, $field,  $options);
    }
    return $options;
  }
  //필수함수
  public function getFormFilters(): array
  {
    return [];
  }
  public function getViewFields(): array
  {
    return $this->getFormFields();
  }
  public function getViewFilters(): array
  {
    return $this->getFormFilters();
  }
  public function getIndexFields(): array
  {
    return $this->getFormFields();
  }
  public function getIndexFilters(): array
  {
    return $this->getFormFilters();
  }
  public function getBatchjobFields(): array
  {
    return $this->getFormFields();
  }
  public function getBatchjobButtons(): array
  {
    return [
      'batchjob' => '일괄 처리',
      'batchjob_delete' => '일괄 삭제',
    ];
  }
  public function getFormRule(string $action, string $field, array $rules = []): array
  {
    switch ($field) {
      case $this->getAttribute('pk_field'):
        if (!$this->$this->getAttribute('useAutoIncrement')) {
          $rule = "required|regex_match[/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/]";
          $rule .= in_array($action, ["create"]) ? "|is_unique[{$this->getAttribute('table')}.{$field}]" : "";
        } else {
          $rule = "required|numeric";
        }
        $rules[$field] = $rule;
        break;
      case $this->getAttribute('title_field'):
        $rules[$field] = "required|trim|string";
        break;
      case "code":
        // a-zA-Z → 영문 대소문자,0-9 → 숫자,가-힣 → 한글 완성형,\- → 하이픈
        $rule = "required|regex_match[/^[a-zA-Z0-9가-힣\-]+$/]|min_length[4]|max_length[20]";
        $rule .= in_array($action, ["create"]) ? "|is_unique[{$this->getAttribute('table')}.{$field}]" : "";
        $rules[$field] = $rule;
        break;
      case 'picture':
        $rules[$field] = "is_image[{$field}]|mime_in[{$field},image/jpg,image/jpeg,image/gif,image/png,image/webp]|max_size[{$field},300]|max_dims[{$field},2048,768]";
        break;
      case "updated_at":
      case "created_at":
      case "deleted_at":
        $rules[$field] = "permit_empty|valid_date";
        break;
      default:
        $rules[$field] = "permit_empty|trim|string";
        break;
    }
    return $rules;
  }
  public function getFormOption(string $action, string $field, array $options = []): array
  {
    switch ($field) {
      case 'user_uid':
        $userService = service('UserService');
        $option = $userService->getEntities();
        break;
      case 'clientinfo_uid':
        $clientService = service('ClientService');
        $option = $clientService->getEntities();
        break;
      default:
        $option = lang($this->getAttribute('class_path') . "." . strtoupper($field));
        break;
    }
    if (!is_array($option)) {
      throw new \Exception(static::class . DIRECTORY_SEPARATOR . __FUNCTION__ . "에서 {$field}의 options 값들이 배열이 아닙니다.\n" . var_export($option, true));
    }
    $options[$field]  = $option;
    return $options;
  }
}