<?php

namespace App\Jobs;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;
use Spatie\WebhookServer\WebhookCall;

class SendToCore implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable;

    protected $url;
    protected $secret;
    protected $directoryPath;
    protected $fileResultType;
    protected $id;
    protected $hasFailed;

    /**
     * @var \Illuminate\Contracts\Filesystem\Filesystem
     */
    private $storage;

    /**
     * Create a new job instance.
     *
     * @param $id
     * @param string $fileResultType
     * @param null $directoryPath
     * @param bool $hasFailed
     */
    public function __construct($id, $fileResultType, $directoryPath = null, $hasFailed = false)
    {
        $this->url = env('WEBHOOK_CORE_URL') . '/webhooks';
        $this->secret = env('WEBHOOK_CORE_SECRET');

        $this->id = $id;
        $this->directoryPath = $directoryPath;
        $this->fileResultType = $fileResultType;
        $this->hasFailed = $hasFailed;
    }

    /**
     * Execute the job.
     *
     * @return void
     * @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
     */
    public function handle()
    {
        $content = [];

        // Directory exists, send content.
        if ($this->directoryPath && ! $this->hasFailed) {
            $this->storage = Storage::disk('local');

            // @TODO Check if the file exists multiple times?
            if ( ! $this->storage->exists($this->directoryPath)) {
                throw new \Exception('File does not exist yet.');
            }

            $content = $this->getContent();
        }

        $sent = $this->sendTheData($content);

//        if ($this->directoryPath && $sent) {
        if ($this->directoryPath) {
            if ( !  $this->storage) {
                $this->storage = Storage::disk('local');
            }

            $this->storage->deleteDirectory($this->directoryPath);
        }
    }

    public function failed()
    {
        if ($this->directoryPath) {
            if ( ! $this->storage) {
                $this->storage = Storage::disk('local');
            }

            $this->storage->delete($this->directoryPath);
        }
    }

    /**
     * Send the data to the core through webhooks
     *
     * @param array$content
     * @return bool
     */
    protected function sendTheData(array $content)
    {
        try {
            WebhookCall::create()
                ->url($this->url)
                ->payload(['data' => [
                    'id' => $this->id,
                    'content' => $content,
                    'file_result_type' => $this->fileResultType,
                    'status' => count($content) > 0 ? 'success' : 'fail',
                ]])
                ->useSecret($this->secret)
                ->dispatch();

            return true;
        } catch (\Exception $exception) {
            Log::error('SendToCore@sendTheData: ' . $exception->getMessage());

            return false;
        }
    }

    protected function getContent()
    {
        $extension = $this->fileResultType === 'md' ? 'md' : 'json';
        $filePath = "$this->directoryPath/document.$extension";

        $document = $this->storage->get($filePath);
        $document = $this->encodeContent($document);

        $images = [];

        if ($extension === 'md') {
            $allFiles = $this->storage->allFiles($this->directoryPath);

            foreach ($allFiles as $file) {
                // @TODO We are using this check in the 'PDFConvertor' file, refactor and improve.
                if (in_array(pathinfo($file, PATHINFO_EXTENSION), ['jpg', 'png'])) {
                    $name = pathinfo($file, PATHINFO_FILENAME);
                    $type = pathinfo($file, PATHINFO_EXTENSION);

                    $images[] = [
                        'name' => $name,
                        'type' => $type,
                        'contents' => 'data:image/' . $type . ';base64,' . base64_encode($this->storage->get($file)),
                    ];
                }
            }
        }

        return [
            'document' => $document,
            'images' => $images,
        ];
    }

    protected function encodeContent($content)
    {
        $encoding = mb_detect_encoding($content, 'UTF-8, ISO-8859-1, WINDOWS-1252, WINDOWS-1251', true);

        if ($encoding != 'UTF-8') {
            $content = iconv($encoding, 'UTF-8//IGNORE', $content);
        }

        return $content;
    }
}