const admin = require('firebase-admin');

module.exports = async (req, res) => {
  const bodydata = JSON.parse(req.body);
  console.log('Requested Create - UID - ', bodydata.uid);
  if (!bodydata.userName) res.status(400).send({ message: 'Missing user name' });
  if (!bodydata.roomName) res.status(400).send({ message: 'Missing party name' });
  const roomNameTaken = await admin
    .firestore()
    .collection('rooms')
    .doc(bodydata.roomName)
    .get()
    .then((docSnap) => docSnap.exists);
  if (roomNameTaken) return res.status(409).send({ message: 'That party name is already taken' });
  await admin
    .firestore()
    .collection('rooms')
    .doc(bodydata.roomName)
    .set({
      name: bodydata.roomName,
      player: bodydata.player,
      createdAt: new Date(),
      updatedAt: new Date(),
    })
    .catch((err) => {
      res.status(500).send({ message: 'Unable to start party.' });
      console.error(err);
    });
  await admin
    .firestore()
    .collection('rooms')
    .doc(bodydata.roomName)
    .collection('messages')
    .add({
      uid: '<system>',
      name: '',
      text: `${bodydata.userName} started the party.`,
      time: new Date(),
    })
    .catch((err) => {
      console.error(
        `Failed to add system create party message : \n\t Room: ${bodydata.roomName}`,
        err
      );
    });
  await admin
    .firestore()
    .collection('rooms')
    .doc(bodydata.roomName)
    .collection('users')
    .doc(bodydata.uid)
    .set({
      admin: true,
      name: bodydata.userName,
    })
    .catch((err) => {
      console.error(
        `Failed to set admin when creating party : \n\t Room: ${bodydata.roomName} \n\t User: ${bodydata.uid}`,
        err
      );
    });
  res.status(201).send({ roomId: bodydata.roomName, message: 'Started a party!' });
};