<?php

namespace App\KommaApp\Kms\Transfer;

/**
 * @author      Komma <info@komma.pro>
 * @copyright   (c) 2012-2016, Komma
 */

use App\KommaApp\Kms\Core\SectionController;
use App\KommaApp\Pages\Models\Page;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Redirect;
use Illuminate\Support\MessageBag;

class TransferController extends SectionController
{
    protected $slug = "transfer";
    protected $forModelName = Page::class; //We need to set a model altough we don't even use it. This is because of the core of the KMS demands it

    protected $treeService;

    public function __construct(TransferSection $section)
    {
        parent::__construct($section);
    }

    public function index() {
        // Build section tabs
        $this->section->getSectionTabDirector()->buildTabs();

        return $this->section->render();
    }

    /**
     * Triggered when the import export button is clicked
     *
     * @param Request $request
     * @return RedirectResponse|MessageBag
     */
    public function importExport(Request $request)
    {
        /** @var TransferService $service */
        $service = $this->section->getSectionService();
        if(!is_a($service, TransferService::class)) throw new \RuntimeException('The section service must be "'.TransferService::class.'". Got "'.get_class($service).'"');

        TransferService::$fileInputFieldName = 'File-file'; //Set the name of the input field that is used for imports. This input also must have the

        $messageBagOrDownload = $service->importExport($request);

        if(!is_a($messageBagOrDownload, MessageBag::class)) return $messageBagOrDownload;

        /** @var RedirectResponse $response */
        $response = Redirect::back();

        //Add errors for the input if any
        if(isset($messageBagOrDownload->getMessages()['errors'])) {
            $errorMessagesForInput = [];
            foreach ($messageBagOrDownload->getMessages()['errors'] as $message) {
                $errorMessagesForInput[TransferService::$fileInputFieldName][] = $message;
            }
            $response = $response->withErrors($errorMessagesForInput);
        }

        //Add success messages for the input if any
        if(isset($messageBagOrDownload->getMessages()['successes'])) {
            $successMessageBag = new MessageBag();
            foreach ($messageBagOrDownload->getMessages()['successes'] as $message) {
                $successMessageBag->add(TransferService::$fileInputFieldName, $message);
            }

            $response = $response->with('successes', $successMessageBag);
        }

        return $response;
    }

    /**
     * Import documents from ftp and link them to models
     */
    public function importDocuments()
    {
        /** @var TransferService $service */
        $service = $this->section->getSectionService();
        if(!is_a($service, TransferService::class)) throw new \RuntimeException('The section service must be "'.TransferService::class.'". Got "'.get_class($service).'"');

        $messageBag = $service->importDocuments();

        $response = $this->index();

        if(isset($messageBag->getMessages()['errors'])) {
            $errorMessagesForInput = [];
            foreach ($messageBag->getMessages()['errors'] as $message) {
                $errorMessagesForInput['document_import'][] = $message;
            }
            $response = $response->withErrors($errorMessagesForInput);
        }

        //Add success messages for the input if any
        if(isset($messageBag->getMessages()['successes'])) {
            $successMessageBag = new MessageBag();
            foreach ($messageBag->getMessages()['successes'] as $message) {
                $successMessageBag->add('document_import', $message);
            }

            $response = $response->with('successes', $successMessageBag);
        }

        return $response;
    }
}