updates

server/internal/database/postgresql.go

@@ -0,0 +1,64 @@
+// internal/database/postgresql.go
+package database
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"go-server/internal/config"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+type PostgresConfig struct {
+	Host     string
+	Port     string
+	User     string
+	Password string
+	DBName   string
+	SSLMode  string
+}
+
+func NewPostgresConfig() PostgresConfig {
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		log.Fatalf("Failed to load postgres config: %v", err)
+	}
+
+	return PostgresConfig{
+		Host:     cfg.Database.Host,
+		Port:     cfg.Database.Port,
+		User:     cfg.Database.User,
+		Password: cfg.Database.Password,
+		DBName:   cfg.Database.Name,
+		SSLMode:  cfg.Database.SSLMode,
+	}
+}
+
+func NewPostgresConnection(config PostgresConfig) (*gorm.DB, error) {
+	dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=%s",
+		config.Host, config.User, config.Password, config.DBName, config.Port, config.SSLMode)
+
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
+		PrepareStmt:            true,
+		SkipDefaultTransaction: true,
+		// Logger can be enabled if needed for debugging
+		// Logger: logger.Default.LogMode(logger.Info),
+	})
+	if err != nil {
+		return nil, fmt.Errorf("failed to connect to database: %w", err)
+	}
+
+	// Configure database/sql connection pool
+	sqlDB, err := db.DB()
+	if err == nil {
+		sqlDB.SetMaxIdleConns(10)
+		sqlDB.SetMaxOpenConns(50)
+		sqlDB.SetConnMaxLifetime(60 * time.Minute)
+		sqlDB.SetConnMaxIdleTime(10 * time.Minute)
+	}
+
+	return db, nil
+}