const { Pool } = require('pg');
var pgDBNamed    = require('node-postgres-named');

module.exports = {
	load: load,
	setup: setup
};

function load(tcrud) {
	const pool = new Pool({connectionString: 'postgres://postgres:postgresql@localhost/pagila'});
	
	// Create backend with id and uri
	tcrud.backend.database.loadPostgres('pg/pagila',pool,pgDBNamed);
}

function setup(tcrud,tcrudModel) {
	
	// Create tcrud models
	var tc = tcrud.config;
	var t = tc.createTEntityNode(tcrudModel,'pagila');
	t.tmeta.tmodel.tbackend = 'pg/pagila';
	
	// Define model and columns
	var tLanguage     = tc.createTEntity(t,'language','language_id');
	var tLanguageId   = tc.createTField(tLanguage,'language_id');
	var tLanguageName = tc.createTField(tLanguage,'name');
	var tLanguageLastUpdate = tc.createTField(tLanguage,'last_update');
	
	var tCountry     = tc.createTEntity(t,'country','country_id');
	var tCountryId   = tc.createTField(tCountry,'country_id');
	var tCountryCountry = tc.createTField(tCountry,'country');
	var tCountryLastUpdate = tc.createTField(tCountry,'last_update');
}