//Instalación normal mediante NPM
const { google } = require('googleapis');
const googleAuth = require('google-auth-library');
const fs = require('fs');
require('../config/config');

drive = google.drive('v3');
credenciales = JSON.parse(fs.readFileSync('./cred.json', 'utf8'));
//Crear objeto de autorización JWT

jwtClient = new google.auth.JWT(
  credenciales.client_email,
  null,
  credenciales.private_key,
  ['https://www.googleapis.com/auth/drive']
);

const list = () => {
  return new Promise((resolve, reject) => {
    jwtClient.authorize((err, tokens) => {
      if (err) reject('Error de autorización: ' + err);
      drive.files.list(
        {
          auth: jwtClient,
          corpora: 'user',
          supportsTeamDrives: true,
          includeTeamDriveItems: true,
          spaces: 'drive',
        },
        async (err, resp) => {
          if (err) {
            reject('Ha habido un error en la petición: ' + err);
            return;
          }
          resolve(resp.data.files);
        }
      );
    });
  });
};

const deleteFile = (fileId) => {
  return new Promise((resolve, reject) => {
    jwtClient.authorize(async (err, tokens) => {
      if (err) reject(err);

      drive.files.delete(
        {
          fileId,
          auth: jwtClient,
        },
        (err, resp) => {
          if (err) reject(err);
          resolve(resp);
        }
      );
    });
  });
};

// CREAR CARPETA
const mkDir = (name) => {
  return new Promise((resolve, reject) => {
    jwtClient.authorize((err, tokens) => {
      if (err) reject('Error de autorización: ' + err);

      let requestBody = {
        name,
        mimeType: 'application/vnd.google-apps.folder',
        parents: [process.env.CARPETA],
      };
      drive.files.create(
        {
          fields: 'id',
          auth: jwtClient,
          requestBody,
        },
        (err, res) => {
          if (err) reject(err);
          resolve(res.data.id);
        }
      );
    });
  });
};

// CREAR ARCHIVO
const uploadFile = (file, name, mimeType, parent) => {
  return new Promise((resolve, reject) => {
    jwtClient.authorize(function (err, tokens) {
      if (err) reject('Error de autorización: ' + err);

      let requestBody = {
        name,
        parents: [parent],
      };
      let media = {
        mimeType: mimeType,
        body: fs.createReadStream(`${file}`),
      };

      drive.files.create(
        {
          media: media,
          fields: 'id',
          requestBody,
          auth: jwtClient,
        },
        (err, file) => {
          if (err) reject(err);
          resolve(file.data.id);
        }
      );
    });
  });
};

//deleteFile("");
//mkDir("316313528");
//uploadFile("arturo.jpg","image/jpeg","1DswUbL4uWE2RlB01XHLAIlPwh_0AXBHw");
//list()

module.exports = {
  deleteFile,
  mkDir,
  uploadFile,
  list,
};