refactor platform domain states and permissions

backend/api/internal/logic/common/organization.go

@@ -0,0 +1,31 @@
+package common
+
+import (
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/impl"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
+)
+
+// ValidateOrganizationIDs verifies that an optional delivery point and staff
+// member belong to the requested gas organization.
+func ValidateOrganizationIDs(gasID, deliveryID, staffID uint64) bool {
+	var delivery models.DeliveryBasic
+	if deliveryID != 0 {
+		if err := impl.DBService.First(&delivery, deliveryID).Error; err != nil {
+			return false
+		}
+		if gasID != 0 && delivery.GasBasicID != 0 && delivery.GasBasicID != gasID {
+			return false
+		}
+	}
+	if staffID == 0 {
+		return true
+	}
+	var staff models.StaffAccount
+	if err := impl.DBService.First(&staff, staffID).Error; err != nil {
+		return false
+	}
+	if deliveryID != 0 && staff.DeliveryBasicID != deliveryID {
+		return false
+	}
+	return gasID == 0 || staff.GasBasicID == 0 || staff.GasBasicID == gasID
+}