add Database type to cli and server config

kontor-gin/internal/config/database.go

@@ -1,17 +1,42 @@
 package config
 
 import (
+	"fmt"
+	"github.com/spf13/viper"
 	"gorm.io/driver/postgres"
+	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 	"gorm.io/gorm/logger"
+	"log/slog"
 )
 
-func NewDB(dsn string) (*gorm.DB, error) {
+func NewDB() (*gorm.DB, error) {
+	db_type := ServerConfig.DB.Type
+	slog.Info("using database", "type", db_type)
+
+	switch db_type {
+	case "postgres":
+		dsn := fmt.Sprintf(
+			"host=%s user=%s password=%s dbname=%s port=%d sslmode=disable",
+			viper.GetString("db.host"),
+			viper.GetString("db.user"),
+			viper.GetString("db.password"),
+			viper.GetString("db.name"),
+			viper.GetInt("db.port"),
+		)
+
+		return gorm.Open(postgres.Open(dsn), &gorm.Config{
+			Logger: logger.Default.LogMode(logger.Info),
+		})
+	case "sqlite":
+		return gorm.Open(sqlite.Open(viper.GetString("db.path")), &gorm.Config{
+			Logger: logger.Default.LogMode(logger.Info),
+		})
+	default:
+		return nil, fmt.Errorf("unknown db.type=%s", db_type)
+	}
 	// Configure GORM with custom settings
 	// The logger helps with debugging SQL queries during development
-	return gorm.Open(postgres.Open(dsn), &gorm.Config{
-		Logger: logger.Default.LogMode(logger.Info),
-	})
 	// if err != nil {
 	// 	log.Fatal("Failed to connect to database:", err)
 	// }