<?php

namespace App\Admin\Form;

use Dcat\Admin\Form\Field;
use Illuminate\Support\Arr;

class CropExtends extends Field
{
    protected $view = 'admin.form.crop_extends';

    protected $listen = '';

    protected static $js = [
        '/vendor/vue/vue.js',
        // 'https://cdn.jsdelivr.net/npm/vue/dist/vue.js'    // 这里可以将vue.js下载下来引入
    ];

    public function listen($listen = '')
    {
        $this->listen = $listen;
        return $this;
    }

    public function render()
    {
        $this->addVariables(['listen' => $this->listen]);
        return parent::render();
    }

    /**
     * 格式化保存值
     *
     * @param [type] $data
     * @return void
     */
    protected function prepareInputValue($value)
    {
        $value = json_decode($value, true);
        $toValue = null;
        if($value){
            foreach($value as $item){
                $toValue[$item['name']] = $item['value'];
            }
        }
        return $toValue;
    }

    /**
      * 格式化渲染值
      *
      * @param [type] $value
      * @return void
      */
    protected function formatFieldData($data)
    {
        $value = parent::formatFieldData($data);

        $crop = Arr::get($this->variables, 'crop', null);
        $toValue = [];
        if($crop && $crop->extends){
            $extends = json_decode($crop->extends, true);
            foreach ($extends as $ext){
                $toValue[] = array_merge($ext, ['value'=>$value[$ext['name']] ?? null]);
            }
        }

        return json_encode($toValue);
    }

    public function crop($crop)
    {
        return $this->addVariables(['crop' => $crop]);
    }

}