const moment = require("moment");

const {
  bulkUpsertRealEstates,
  checkIfAlreadyExist
} = require("../../helpers/db/realEstate");

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

  async save(results) {
    console.log("[POSTGRES] Saving...");
    const resultsWithPublishedAndRenewedDateSame = results.filter(
      realEstate => {
        const { publishedDate, renewedDate } = realEstate;

        const publishedMomentDate = moment.utc(publishedDate);
        const renewedMomentDate = moment.utc(renewedDate);

        return publishedMomentDate.isSame(renewedMomentDate, "minute");
      }
    );

    const exist =
      resultsWithPublishedAndRenewedDateSame.length > 0
        ? await checkIfAlreadyExist(resultsWithPublishedAndRenewedDateSame)
        : false;
    const savedRecords = await bulkUpsertRealEstates(results);

    return {
      exist,
      savedRecords
    };
  }

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

module.exports = PostgresSaver;