add sort

pkg/lib-helper/lib-helper.go

@@ -3,6 +3,8 @@ package libhelper
 import (
 	"fmt"
 	pl "simrs-vx/pkg/logger"
+	"strings"
+	"unicode"
 
 	"github.com/jackc/pgx/v5/pgconn"
 	"gorm.io/gorm"
@@ -16,6 +18,59 @@ func SearchCodeOrName(search string, tx *gorm.DB) *gorm.DB {
 	return tx
 }
 
+func Sort(sort string, tx *gorm.DB) *gorm.DB {
+	if sort == "" {
+		return tx
+	}
+
+	pairs := strings.Split(sort, ",")
+	for _, pair := range pairs {
+		parts := strings.Split(strings.TrimSpace(pair), "=")
+		if len(parts) != 2 {
+			continue // skip invalid format
+		}
+
+		field := strings.TrimSpace(parts[0])
+		direction := strings.ToUpper(strings.TrimSpace(parts[1]))
+
+		if direction != "ASC" && direction != "DESC" {
+			continue
+		}
+
+		field = normalizeColumnName(field)
+
+		tx = tx.Order(fmt.Sprintf("\"%s\" %s", field, direction))
+	}
+
+	return tx
+}
+
+func normalizeColumnName(input string) string {
+	if input == "" {
+		return input
+	}
+
+	input = strings.ReplaceAll(input, "-", "_")
+
+	runes := []rune(input)
+	var out []rune
+	upperNext := true
+	for _, r := range runes {
+		if r == '_' {
+			out = append(out, r)
+			upperNext = true
+			continue
+		}
+		if upperNext {
+			out = append(out, unicode.ToUpper(r))
+			upperNext = false
+		} else {
+			out = append(out, r)
+		}
+	}
+	return string(out)
+}
+
 func HandleCreateError(input any, event *pl.Event, err error) error {
 	e, ok := err.(*pgconn.PgError)
 	if !ok {