<?php

namespace App\Forms;

use App\Entities\CommonEntity;
use RuntimeException;

abstract class CommonForm
{
  private array $_attributes = [];
  private array $_formFields = [];
  private array $_formRules = [];
  private array $_formFilters = [];
  private array $_batchjobFilters = [];
  private array $_formOptions = [];
  protected function __construct() {}
  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 setFormFields(array $fields): void
  {
    foreach ($fields as $field) {
      $this->_formFields[$field] = $this->getFormFieldLabel($field);
    }
  }
  //$fields 매치된것만 반환, []->전체
  final public function getFormFields(array $fields = []): array
  {
    // 1. $fields 배열이 비어있는지 확인합니다.
    // getFormFields('create') 와 같이 호출될 경우 $fields는 빈 배열[]이 됩니다.
    if (empty($fields)) {
      // 비어있다면, _formFields 전체를 반환합니다.
      return $this->_formFields;
    }
    // $fields의 값(원하는 필드명)을 키로 변환합니다.
    // 예: ['test1'] -> ['test1' => 0]
    $fieldsAsKeys = array_flip($fields);
    // _formFields와 $fieldsAsKeys 간의 키를 비교하여 교집합을 반환합니다.
    // 즉, $fields에 지정된 필드 정의만 추출됩니다.
    return array_intersect_key($this->_formFields, $fieldsAsKeys);
  }
  final public function setFormRules(string $action, array $fields): void
  {
    foreach ($fields as $field) {
      $this->_formRules[$field] = $this->getFormRule($action, $field);
    }
  }
  //$fields 매치된것만 반환, []->전체
  final public function getFormRules(array $fields = []): array
  {
    if (empty($fields)) {
      return $this->_formRules;
    }
    $fieldsAsKeys = array_flip($fields);
    return array_intersect_key($this->_formRules, $fieldsAsKeys);
  }
  final public function setFormOptions(array $fields): void
  {
    foreach ($fields as $field) {
      $this->_formOptions[$field] = $this->getFormOption($field);
    }
    // dd($this->_formOptions[$field]);
  }
  //$fields 매치된것만 반환, []->전체
  final public function getFormOptions(array $fields = []): array
  {
    if (empty($fields)) {
      return $this->_formOptions;
    }
    $fieldsAsKeys = array_flip($fields);
    return array_intersect_key($this->_formOptions, $fieldsAsKeys);
  }
  final public function setFormFilters(array $fields): void
  {
    $this->_formFilters = $fields;
  }
  final public function getFormFilters(): array
  {
    return $this->_formFilters;
  }
  final public function setBatchjobFilters(array $fields): void
  {
    $this->_batchjobFilters = $fields;;
  }
  final public function getBatchjobFilters(): array
  {
    return $this->_batchjobFilters;
  }
  final public function getBatchjobButtons(array $buttions = [
    'batchjob' => '일괄 처리',
    'batchjob_delete' => '일괄 삭제',
  ]): array
  {
    return $buttions;
  }
  //Validation용
  public function validate(array $formDatas): bool
  {
    $validation = service('validation');
    $dynamicRules = [];
    foreach ($this->getFormRules() as $field => $rule) {
      //field별 추가 커스텀 룰 적용
      list($field, $rule) = $this->getValidationRule($field, $rule);
      $dynamicRules[$field] = $rule;
    }
    $validation->setRules($dynamicRules);
    return $validation->run($formDatas);
  }
  //필수함수
  //사용자정의 함수
  protected function getValidationRule(string $field, string $rule): array
  {
    return array($field, $rule);
  }

  public function getFormFieldLabel(string $field, ?string $label = null): string
  {
    switch ($field) {
      default:
        $label = $label ?? lang("{$this->getAttribute('class_path')}.label.{$field}");
        break;
    }
    return $label;
  }
  public function getFormRule(string $action, string $field): string
  {
    switch ($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";
        }
        break;
      case $this->getAttribute('title_field'):
        $rule = "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}]" : "";
        break;
      case 'picture':
        $rule = "is_image[{$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":
        $rule = "permit_empty|trim|valid_date";
        break;
      default:
        $rule = "permit_empty|trim|string";
        break;
    }
    return $rule;
  }
  public function getFormOption(string $field, array $options = ['options' => [], 'extras' => [], 'atttributes' => []]): array
  {
    $tempOptions = ['' => lang("{$this->getAttribute('class_path')}.label.{$field}") . " 선택"];
    switch ($field) {
      case 'user_uid':
        foreach (service('userservice')->getEntities() as $entity) {
          $tempOptions[$entity->getPK()] = $entity->getTitle();
          // $options['attributes'][$entity->getPK()] = ['data-role' => implode(DEFAULTS['DELIMITER_ROLE'], $entity->getRole())];
        }
        $options['options'] = $tempOptions;
        break;
      case 'clientinfo_uid':
        foreach (service('clientervice')->getEntities() as $entity) {
          $tempOptions[$entity->getPK()] = $entity->getTitle();
          // $options['attributes'][$entity->getPK()] = ['data-role' => implode(DEFAULTS['DELIMITER_ROLE'], $entity->getRole())];
        }
        $options['options'] = $tempOptions;
        break;
      default:
        foreach (lang($this->getAttribute('class_path') . "." . strtoupper($field)) as $key => $label) {
          $tempOptions[$key] = $label;
        }
        $options['options'] = $tempOptions;
        break;
    }
    return $options;
  }
}