upodate system

internal/handlers/request/validator/request_validator.go

@@ -0,0 +1,43 @@
+package validator
+
+import (
+	"enaklo-pos-be/internal/entity"
+	"github.com/pkg/errors"
+	"time"
+)
+
+type RequestValidator struct{}
+
+func NewRequestValidator() *RequestValidator {
+	return &RequestValidator{}
+}
+
+func (v *RequestValidator) ValidateSearchRequest(req *entity.SearchRequest) error {
+	if req.Status != "" {
+		validStatuses := []string{"pending", "confirmed", "processing", "completed", "cancelled"}
+		if !v.isValidStatus(req.Status, validStatuses) {
+			return errors.New("invalid status value")
+		}
+	}
+
+	if !req.Start.IsZero() && !req.End.IsZero() {
+		if req.Start.After(req.End) {
+			return errors.New("start date cannot be after end date")
+		}
+
+		if req.End.Sub(req.Start) > 365*24*time.Hour {
+			return errors.New("date range cannot exceed 1 year")
+		}
+	}
+
+	return nil
+}
+
+func (v *RequestValidator) isValidStatus(status string, validStatuses []string) bool {
+	for _, validStatus := range validStatuses {
+		if status == validStatus {
+			return true
+		}
+	}
+	return false
+}