class PostgresSaver {
  constructor(url) {
    this.url = url;
  }

  connect() {
    //TODO: It seems we never worry about open/close connection with Sequelize ?
    //TODO: Check if postgres is ready
    return true;
  }

  async save(results) {
    let resultsForMongo = Object.keys(results).map(key => {
      return results[key];
    });

    for (const doc of resultsForMongo) {
      this.collection.update({ url: doc.url }, doc, { upsert: true });
    }
  }

  close() {
    //TODO: It seems we never worry about open/close connection with Sequelize ?
    return true;
  }
}

module.exports = PostgresSaver;