import Sequelize from "sequelize";
import * as dotenv from "dotenv"; // see https://github.com/motdotla/dotenv#how-do-i-use-dotenv-with-import
dotenv.config();

// module.exports = {
//     HOST: "localhost",
//     USER: "tethys_admin",
//     PASSWORD: "tethys_admin007",
//     DB: "tethys",
//     dialect: "postgres",
//     pool: {
//         max: 5,
//         min: 0,
//         acquire: 30000,
//         idle: 10000
//     }
// };

// const pg = require('pg');
// pg.types.setTypeParser(1114, (str) => new Date((str.split(' ').join('T'))+'Z'));


const dbSchema = process.env.DB_SCHEMA;
const dbName = process.env.DB_NAME;
const dbUser = process.env.DB_USER;
const dbPassword = process.env.DB_PASSWORD;
const dbHost = process.env.DB_HOST;
// const dbDriver = process.env.DB_DRIVER; // as Dialect

const sequelizeConnection = new Sequelize(
    dbName,
    dbUser,
    dbPassword,
    {
        schema: dbSchema,
        host: dbHost || "localhost",
        port: process.env.DB_PORT || 5432,
        dialect: "postgres",
        dialectOptions: {
            ssl: process.env.DB_SSL == "true",
        },
        pool: {
            max: 10,
            min: 0,
            acquire: 30000,
            idle: 10000,
        },
        logging: false,
        dialectOptions: {
            useUTC: false, //for reading from database
            dateStrings: true,
            typeCast: true
      },
      timezone: '+02:00' //for writing to database      
        // host: "localhost",
        // dialect: 'postgres',
        // logging: false
    }
);

sequelizeConnection
    .authenticate()
    .then(() => {
        console.log("Connection has been established successfully.");
    })
    .catch((err) => {
        console.error("Unable to connect to the database:", err);
    });
export default sequelizeConnection;
// export default sequelizeConnection;

// // relations
// Dataset.hasMany(Title, {
//     as: "titles",
//     foreignKey: "document_id"
//   });
//   Title.belongsTo(Dataset, {
//     foreignKey: "document_id",
//     as: "dataset",
//   });