//Application
router.post("/authApp", (req, res) => {
  let macAddress = (req.body.macAddress);
  let code = (req.body.code);
  try {
    getAccessTokenApp(code, macAddress, res);
    return;
  } catch (error) {
    res.json({error: "error"})
  }

});

function getAccessTokenApp(code, macAddress, res) {
  //Getting Access Token
  const redirect = encodeURIComponent('https://botbuddy.xyz/dashboard');
  var options = {
    method: 'POST',
    url: `https://discordapp.com/api/oauth2/token?grant_type=authorization_code&code=${code}&redirect_uri=${redirect}`,
    headers: {
      Authorization: `Basic ${creds}`,
    }
  };

  request(options, function(error, response, body, res) {
    if (error) throw new Error(error);
    var jsonObject = JSON.parse(body);
    let accessToken = (jsonObject["access_token"]);
    //Get user Data
    getUser(accessToken, macAddress, res);
    return;
  });
}

//This function gets the users Discord data
function getUserApp(accessToken, macAddress, res) {
  request({
      url: "https://discordapp.com/api/users/@me",
      headers: {
        Authorization: `Bearer ${accessToken}`,
      }
    },
    function(error, response, body) {
      if (error) throw new Error(error);
      var jsonObject = JSON.parse(body);
      let userId = jsonObject["id"];
      let avatar = `https://cdn.discordapp.com/avatars/${userId}/${jsonObject["avatar"]}.png`;
      let username = `${jsonObject["username"]}#${jsonObject["discriminator"]}`;
      //Checking if the user is in the database or not!
      findId(userId, username, avatar, macAddress, res);
      return;
    }
  );
}


function findIdApp(userId, username, avatar, macAddress, res) {
  //console.log(userId)
  let apiKey = "w1wA_FNu_Mc38FwuaD4ucVJN4gxeqFy_";
  request.get({
    headers: {
      'content-type': 'application/json'
    },
    url: `https://api.mlab.com/api/1/databases/heroku_mv21lspx/collections/lifetime/?f={"_id": 0}&apiKey=${apiKey}`,
  }, function(error, response, body) {
    if (error) throw new Error(error);
    let data = JSON.parse(body);
    var hasKey = false;
    var key;
    var mac;
    for (var i = 0; i < data.length; i++) {
      let doc = data[i];
      let discord = doc.discord;
      if (discord == userId) {
        hasKey = true;
        key = doc.key;
        mac = doc.mac;
        break;
      }
    }
    if (hasKey == true) {
      if (mac == macAddress || mac == "") {
        //return the users data encrypted and save it into the file
        res.json({
          activated: true,
          key: key,
          username: username,
          id: userId,
          avatar: avatar,
        });
      } else {
        //another device is active
        res.json({
          activated: false,
          error: "Active on Another Device"
        });
      }

    } else {
      //return message that user needs to bind key to a Discord account
      res.json({
        activated: false,
        error: "Account has no Key Binded"
      });
    }
    return;
  })
}