<?php
namespace App\Admin\Exports;

use Encore\Admin\Grid\Exporters\AbstractExporter;
use Illuminate\Contracts\View\View;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Storage;

abstract class ViewExport extends AbstractExporter
{
    /**
     * @var Collection
     */
    private $customerData = null;

    /**
     * @return mixed
     */
    public function getCustomerData()
    {
        return $this->customerData;
    }

    /**
     * @param Collection $customerData
     * @return ViewExport
     */
    public function setCustomerData(Collection $customerData)
    {
        $this->customerData = $customerData;
        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function export()
    {
        $temp_path=$this->renderFile();
        response()->download(Storage::disk('public')
            ->path($temp_path), $this->getFilename())
            ->deleteFileAfterSend(true)
            ->send();
        exit;
    }

    public function store()
    {
        return $this->renderFile();
    }


    private function renderFile()
    {
        $view = $this->getView($this->getCustomerData()?:$this->getData(false));
        $temp_path="temp/".$this->getFilename();
        Storage::disk('public')->put($temp_path, $view->render());
        return $temp_path;
    }

    /**
     * 设置文件名
     * @return string
     */
    abstract public function getFilename(): string ;


    /**
     * 渲染对应的视图
     * @param Collection $data 导出的数据
     * @return View
     */
    abstract public function getView(Collection $data): View ;

}