package database

import (
	"context"
	"log"
	"time"

	"github.com/jackc/pgx/v5/pgxpool"
)

func NewPostgresDB(databaseURL string) *pgxpool.Pool {
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	config, err := pgxpool.ParseConfig(databaseURL)
	if err != nil {
		log.Fatalf("Unable to parse DATABASE_URL: %v", err)
	}

	// Scalability: Configure the connection pool
	config.MaxConns = 25
	config.MinConns = 5
	config.MaxConnLifetime = time.Hour
	config.MaxConnIdleTime = 30 * time.Minute

	pool, err := pgxpool.NewWithConfig(ctx, config)
	if err != nil {
		log.Fatalf("Unable to create connection pool: %v", err)
	}

	// Test the connection
	if err := pool.Ping(ctx); err != nil {
		log.Fatalf("Database is not responding: %v", err)
	}

	log.Println("Connected to PostgreSQL successfully with pgxpool")
	return pool
}