package config

import (
	"log"
	"time"

	"github.com/gofiber/session/v2"
	pgprovider "github.com/gofiber/session/v2/provider/postgres"
)

type SessionConfig struct {
	*session.Session
}

// Setup configura el almacén de sesiones en PostgreSQL con expiración de 1 año.
// Si el provider PostgreSQL falla (credenciales, red, etc.), usa memoria como fallback.
func (s *SessionConfig) Setup(db DatabaseDriver) error {
	port := int64(db.Port)
	if port == 0 {
		port = 5432
	}

	provider, err := pgprovider.New(pgprovider.Config{
		Host:            db.Host,
		Port:            port,
		Username:        db.Username,
		Password:        db.Password,
		Database:        db.DBName,
		TableName:       "sessions",
		MaxOpenConns:    20,
		MaxIdleConns:    10,
		ConnMaxLifetime: 5 * time.Minute,
	})
	if err != nil {
		log.Printf("[SESSION] PostgreSQL provider error, usando memoria: %v", err)
		s.Session = session.New(session.Config{
			Expiration: 365 * 24 * time.Hour,
		})
		return nil
	}

	s.Session = session.New(session.Config{
		Expiration: 365 * 24 * time.Hour,
		Provider:   provider,
	})
	log.Println("[SESSION] Sesiones persistentes en PostgreSQL (tabla: sessions)")
	return nil
}