<?php namespace Aweos\Resizer\FormWidgets;

use Db;
use Input;
use Request;
use Response;
use Validator;
use Backend\Widgets\Form;
use Backend\Classes\FormField;
use Backend\Classes\FormWidgetBase;
use October\Rain\Filesystem\Definitions as FileDefinitions;
use ApplicationException;
use ValidationException;
use Exception;
use Aweos\Resizer\Traits\ResponsiveSaver;
use Aweos\Resizer\Traits\ResponsiveWidget;
use Aweos\Resizer\Classes\UploadStorage;

/**
 * File upload field
 * Renders a form file uploader field.
 *
 * Supported options:
 * - mode: image-single, image-multi, file-single, file-multi
 * - upload-label: Add file
 * - empty-label: No file uploaded
 *
 * @package october\backend
 * @author Alexey Bobkov, Samuel Georges
 */
class Responsiveimage extends FormWidgetBase
{

    public $minWidth;

    public $aspectRatio;

    protected $defaultAlias = 'responsiveimage';

    protected $configFormWidget;

    /**
     * @inheritDoc
     */
    public function init()
    {
        $this->fillFromConfig([
            'minWidth',
            'aspectRatio'
        ]);

        /*

        if ($this->formField->disabled) {
            $this->previewMode = true;
        }

        //$this->getConfigFormWidget();
        */
    }

    /**
     * @inheritDoc
     */
    public function render()
    {
        $this->prepareVars();
        return $this->makePartial('responsiveimage');
    }

    /**
     * Prepares the view data
     */
    protected function prepareVars()
    {
        $this->vars['aspectRatio'] = $this->aspectRatio
            ? str_replace('"', "'", json_encode(explode(' / ', $this->aspectRatio)))
            : 'null';
        $this->vars['minWidth'] = $this->minWidth ?: '0';
        $this->vars['name'] = $this->formField->getName();
        $this->vars['value'] = $this->getLoadValue() ?: 'null';
        $this->vars['meta'] = $this->getLoadValue()
            ? str_replace('"', "'", json_encode(app(UploadStorage::class)->getFileData($this->getLoadValue())))
            : 'null';
        $this->vars['model'] = $this->model;
    }

    /**
     * @inheritDoc
     */
    protected function loadAssets()
    {
        $this->addCss('css/responsiveimage.build.css', 'core');
        $this->addJs('js/responsiveimage.build.js', 'core');
    }

    /**
     * @inheritDoc
     */
    public function getSaveValue($value)
    {
        return $value;
    }

    /**
     * Upload handler for the server-side processing of uploaded files
     */
    public function onUpload()
    {
        if (!Input::hasFile('file_data')) {
            throw new ApplicationException('File missing from request');
        }

        $data = json_decode(Input::get('extraData'), true);
        $uploadedFile = Input::file('file_data');

        if (!$uploadedFile->isValid()) {
            throw new ApplicationException('File is not valid');
        }

        $attachment = app(UploadStorage::class)->storeFileFromUpload($uploadedFile, $data);

        return Response::make($attachment->id);
    }

    public function onDelete() {
        app(UploadStorage::class)->removeAttachment(Input::get('file_id'));
    }

}