<?php

namespace App\Admin\Extensions;

use App\Admin\Extensions\Form\Copyable as FormCopyable;
use App\Admin\Extensions\Show\Copyable as ShowCopyable;
use Dcat\Admin\Form;
use Dcat\Admin\Show;

/**
 * 复制功能助手类
 * 
 * 提供便捷的方法为Show和Form添加复制功能
 */
class CopyableHelper
{
    /**
     * 为Show字段添加复制功能
     *
     * @param Show $show Show实例
     * @param string $field 字段名
     * @param string|null $label 字段标签
     * @return ShowCopyable
     */
    public static function addToShow(Show $show, string $field, ?string $label = null): ShowCopyable
    {
        return $show->field($field, $label)->as(function ($value) {
            return (new ShowCopyable())->setValue($value)->render();
        });
    }

    /**
     * 为Form字段添加复制功能（只读显示）
     *
     * @param Form $form Form实例
     * @param string $field 字段名
     * @param string|null $label 字段标签
     * @return FormCopyable
     */
    public static function addToForm(Form $form, string $field, ?string $label = null): FormCopyable
    {
        $copyable = new FormCopyable($field, [$label]);
        $copyable->setForm($form);
        return $copyable;
    }

    /**
     * 批量为Show添加复制功能
     *
     * @param Show $show Show实例
     * @param array $fields 字段配置数组，格式：['field_name' => 'Field Label']
     * @return void
     */
    public static function addMultipleToShow(Show $show, array $fields): void
    {
        foreach ($fields as $field => $label) {
            self::addToShow($show, $field, $label);
        }
    }

    /**
     * 批量为Form添加复制功能
     *
     * @param Form $form Form实例
     * @param array $fields 字段配置数组，格式：['field_name' => 'Field Label']
     * @return void
     */
    public static function addMultipleToForm(Form $form, array $fields): void
    {
        foreach ($fields as $field => $label) {
            self::addToForm($form, $field, $label);
        }
    }

    /**
     * 为Show字段添加带格式化的复制功能
     *
     * @param Show $show Show实例
     * @param string $field 字段名
     * @param string|null $label 字段标签
     * @param callable|null $formatter 格式化函数
     * @return ShowCopyable
     */
    public static function addFormattedToShow(Show $show, string $field, ?string $label = null, ?callable $formatter = null): ShowCopyable
    {
        return $show->field($field, $label)->as(function ($value) use ($formatter) {
            if ($formatter) {
                $value = $formatter($value);
            }
            return (new ShowCopyable())->setValue($value)->render();
        });
    }

    /**
     * 为Form字段添加带格式化的复制功能
     *
     * @param Form $form Form实例
     * @param string $field 字段名
     * @param string|null $label 字段标签
     * @param callable|null $formatter 格式化函数
     * @return FormCopyable
     */
    public static function addFormattedToForm(Form $form, string $field, ?string $label = null, ?callable $formatter = null): FormCopyable
    {
        $copyable = new FormCopyable($field, [$label]);
        $copyable->setForm($form);
        
        if ($formatter) {
            $copyable->customFormat(function ($value) use ($formatter) {
                return $formatter($value);
            });
        }
        
        return $copyable;
    }
}