const express = require('express');
const { spawnSync } = require('child_process');

const router = express.Router();

router
  .get('/', (request, response) => {
    console.log('Calling CLI script to get data.');

    const scriptName = 'striker-access-database';
    const childProcess = spawnSync(
      scriptName,
      [
        '--query',
        'SELECT file_uuid, file_name, file_size, file_type, file_md5sum FROM files;',
      ],
      {
        timeout: 10000,
        encoding: 'utf-8',
      },
    );
    let stdoutJSON;

    if (childProcess.error) {
      console.log('Error:', childProcess.error);

      response.status(500).send();
    }

    console.log('Stdout:', childProcess.stdout);
    console.log('Stderr:', childProcess.stderr);

    try {
      stdoutJSON = JSON.parse(childProcess.stdout);
    } catch (jsonParseError) {
      console.warn(`Failed to parse output of script ${scriptName}.`);
    }

    response.status(200).send(stdoutJSON);
  })
  .get('/:fileUUID', (request, response) => {
    console.log('Calling CLI script to get data.');

    const scriptName = 'striker-access-database';
    const childProcess = spawnSync(
      scriptName,
      [
        '--query',
        `SELECT *
          FROM files AS fil
          JOIN file_locations AS fil_loc
          ON fil.file_uuid = fil_loc.file_location_file_uuid
          WHERE fil.file_uuid = '${request.params.fileUUID}';`,
      ],
      {
        timeout: 10000,
        encoding: 'utf-8',
      },
    );
    let stdoutJSON;

    if (childProcess.error) {
      console.log('Error:', childProcess.error);

      response.status(500).send();
    }

    console.log('Stdout:', childProcess.stdout);
    console.log('Stderr:', childProcess.stderr);

    try {
      stdoutJSON = JSON.parse(childProcess.stdout);
    } catch (jsonParseError) {
      console.warn(`Failed to parse output of script ${scriptName}.`);
    }

    response.status(200).send(stdoutJSON);
  });

module.exports = router;