change alot of id values

proto/messages.proto

@@ -7,7 +7,7 @@ message ClearCartRequest {
 }
 
 message AddItem {
-	int64 item_id = 1;
+	uint32 item_id = 1;
 	int32 quantity = 2;
 	int64 price = 3;
 	int64 orgPrice = 9;
@@ -33,17 +33,17 @@ message AddItem {
 }
 
 message RemoveItem {
-	int64 Id = 1;
+	uint32 Id = 1;
 }
 
 message ChangeQuantity {
-	int64 id = 1;
+    uint32 Id = 1;
 	int32 quantity = 2;
 }
 
 message SetDelivery {
 	string provider = 1;
-	repeated int64 items = 2;
+	repeated uint32 items = 2;
 	optional PickupPoint pickupPoint = 3;
 	string country = 4;
 	string zip = 5;
@@ -52,7 +52,7 @@ message SetDelivery {
 }
 
 message SetPickupPoint {
-	int64 deliveryId = 1;
+	uint32 deliveryId = 1;
 	string id = 2;
 	optional string name = 3;
 	optional string address = 4;
@@ -71,7 +71,7 @@ message PickupPoint {
 }
 
 message RemoveDelivery {
-	int64 id = 1;
+	uint32 id = 1;
 }
 
 message CreateCheckoutOrder {
@@ -98,6 +98,19 @@ message InitializeCheckout {
 	bool paymentInProgress = 3;
 }
 
+message VoucherRule {
+	string type = 2;
+	string description = 3;
+	string condition = 4;
+	string action = 5;
+}
+
 message AddVoucher {
     string code = 1;
+    int64 value = 2;
+    repeated VoucherRule voucherRules = 3;
+}
+
+message RemoveVoucher {
+    uint32 id = 1;
 }