const path = require('path');
const dotenv = require('dotenv');

const envPath = process.env.SEQUELIZE_ENV_FILE
  ? path.resolve(process.cwd(), process.env.SEQUELIZE_ENV_FILE)
  : path.resolve(process.cwd(), '.env');

dotenv.config({ path: envPath });

const dialectOptions = {};
if (process.env.DB_SSL === '1' || process.env.PGSSLMODE === 'require') {
  dialectOptions.ssl = process.env.DB_SSL_REJECT_UNAUTHORIZED === '0'
    ? { rejectUnauthorized: false }
    : true;
}

// pg/SCRAM: password muss ein String sein; bei fehlender .env sonst undefined-Fallen vermeiden
const shared = {
  username: process.env.DB_USER != null ? String(process.env.DB_USER) : undefined,
  password: process.env.DB_PASS != null ? String(process.env.DB_PASS) : '',
  database: process.env.DB_NAME != null ? String(process.env.DB_NAME) : undefined,
  host: process.env.DB_HOST || '127.0.0.1',
  port: Number.parseInt(process.env.DB_PORT || '5432', 10),
  dialect: 'postgres',
  logging: false,
  dialectOptions
};

module.exports = {
  development: shared,
  test: shared,
  production: shared
};