const { v4: uuidv4 } = require('uuid');

class PublicStateController {

  constructor(database) {
    this.database = database;
  };

  create(data, user, onSuccess, onError) {
    let collection = this.database.collection('publicStates');
    collection.findOne({name: data.name}, {}, (dbErr, dbRes) => {
      if (dbErr === null) {
        if (dbRes === null) {
          let title = data.tile | data.name;
          let pubState = {
            id: uuidv4(),
            name: data.name,
            title: title,
            createdBy: user.id,
            ts: new Date().getTime(),
            v: 1
          };
          collection.insertOne(pubState, (insertErr, insertRes) => {
            if (insertErr === null) {
              console.log('call onSuccess with data: ' + JSON.stringify(pubState));
              onSuccess(pubState);
            } else {
              onError({
                error: 'database error: could not create public state',
                message: insertErr.message
              })
            }
          });
        } else {
          onError({
            code: 'app error',
            message: 'a public state with that name already exists'
          });
        }
      } else {
        onError({
          code: 'database error',
          message: dbErr.message
        });
      }
    });
  };

};

module.exports = PublicStateController;