console.log('wrok');
const pg = require('pg');

const config = {
    host: '77.34.74.77',
    // Do not hard code your username and password.
    // Consider using Node environment variables.
    user: 'postgres',     
    password: 'postgres',
    database: 'postgres',
    port: 5432,
    ssl: false
};

const client = new pg.Client(config);

client.connect
(
    err => 
    {
        if (err) throw err;
        else 
        { 
            addToDvachDatabase();
            queryDatabase(); 
        }
    }
);

function addToDvachDatabase() {  //Добавляем значение в базу данных dvach

    console.log(`Running query to PostgreSQL server: ${config.host}`);

    const query = "INSERT INTO dvach (post) VALUES ('Привет двач');";

    client.query(query)
        .then(res => {
            //const rows = res.rows;

            //rows.map(row => {
                //console.log(`Прочитано следующее : ${JSON.stringify(row)}`);
           // });

            //process.exit();
        })
        .catch(err => {
            console.log(err);
        });
}

function queryDatabase() {  //VSE ZNACHENIYA IZ BAZI DANNYKH

    console.log(`Running query to PostgreSQL server: ${config.host}`);

    const query = 'SELECT * FROM dvach;';

    client.query(query)
        .then(res => {
            const rows = res.rows;

            rows.map(row => {
                console.log(`Прочитано следующее : ${JSON.stringify(row)}`);
            });

            process.exit();
        })
        .catch(err => {
            console.log(err);
        });
}