config: add Host and Port helpers

config.go

@@ -1,6 +1,10 @@
 package dbx
 
-import "fmt"
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
 
 // DBConfig provides a template for database connection configuration compatible
 // with go-toolkit/config. If used as a field in a struct, remember to include
@@ -29,3 +33,32 @@ func (cfg *DBConfig) ConnectionString(dialect Dialect) string {
 		panic("unsupported dialect: " + string(dialect))
 	}
 }
+
+// Host returns the host portion of the database URI.
+func (cfg *DBConfig) Host() (string, error) {
+	host, _, err := cfg.split()
+	return host, err
+}
+
+// Port returns the port portion of the database URI.
+func (cfg *DBConfig) Port() (int, error) {
+	_, port, err := cfg.split()
+	if err != nil {
+		return 0, err
+	}
+
+	portInt, err := strconv.Atoi(port)
+	if err != nil {
+		return 0, fmt.Errorf("invalid port: %w", err)
+	}
+	return portInt, nil
+}
+
+// splits the URI into host and port.
+func (cfg *DBConfig) split() (string, string, error) {
+	split := strings.Split(cfg.URI, ":")
+	if len(split) != 2 {
+		return "", "", fmt.Errorf("invalid URI format")
+	}
+	return split[0], split[1], nil
+}