searchanddisplace-core/app/Http/Controllers/FileController.php

<?php

namespace App\Http\Controllers;

use App\SearchDisplace\Ingest\SendDocument;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Storage;
use Illuminate\Http\UploadedFile;
use GuzzleHttp\Exception\BadResponseException;
use Symfony\Component\Process\Process;
use Symfony\Component\Process\Exception\ProcessFailedException;

class FileController extends Controller
{
    /**
     *
     * @return JsonResponse
     */
    public function create(): JsonResponse
    {
        request()->validate([
            'file' => [
                'required',
                'file',
                'max:10000',
                'mimes:doc,dot,docx,dotx,docm,dotm,odt,rtf,pdf,txt',
            ],
        ]);

        try {
            /** @var UploadedFile $file */
            $file = request()->file('file');
            $time = time();
            $fileId = $time . '_' . pathinfo($file->getClientOriginalName(), PATHINFO_FILENAME);

            $sendDocument = new SendDocument();

            $sendDocument->execute($fileId, [
                'path' => $file->getRealPath(),
                'type' => $file->getMimeType(),
                'name' => $file->getClientOriginalName()
            ]);

            return response()->json([
                'id'    => $fileId,
                'file_name'  => $file->getClientOriginalName(),
            ]);
        } catch (BadResponseException $e) {
            return response()->json([
                'message' => $e->getMessage(),
                'response' => $e->getResponse()
            ], 400);
        } catch (\Exception $e) {
            return response()->json([
                'message' => $e->getMessage(),
            ], 400);
        }
    }

    /**
     *
     */
    public function convert(): JsonResponse
    {
        $mdFileContent = request()->input('content');
        $fileId = request()->input('file_id');

        Storage::disk('local')->put('tmp/' . $fileId . '.md', $mdFileContent);
        $tmpFilePath = Storage::path('tmp/' . $fileId);

        $process = new Process(['pandoc', '-f', 'markdown_strict', $tmpFilePath . '.md', '-t', 'html']);
        $process->run();
        if (!$process->isSuccessful()) {
            throw new ProcessFailedException($process);
        }

        $output = str_replace('./contracts-images', config('app.url') . '/contracts-images', $process->getOutput());
        Storage::disk('local')->put('tmp/' . $fileId . '.html', $output);
        
        $process = new Process([ 'pandoc', '-f', 'html', $tmpFilePath . '.html', '-t', 'odt', '-o', $tmpFilePath . '.odt']);
        $process->run();
        if (!$process->isSuccessful()) {
            throw new ProcessFailedException($process);
        }

        return response()->json([
            'path' => 'tmp/' . $fileId . '.odt'
        ]);
    }

    /**
     *
     * @param string $path
     * @return mixed
     */
    public function download(string $path)
    {
        return Storage::download($path);
    }

    /**
     * Delete a file currently in progress
     *
     * @param string $id
     * @return JsonResponse
     */
    public function delete(string $id): JsonResponse
    {
        $success = Storage::delete([
            "tmp/{$id}.md",
            "tmp/{$id}.odt",
            "tmp/{$id}.html",
            "contracts/{$id}.md",
        ]);
        return response()->json(['success' => $success]);
    }
}