add create categories route

api/smm_core.proto

@@ -73,6 +73,11 @@ service SmmCore {
         delete: "/budgets/{budget_id}/users/{user_id}"
       };
     }
+    rpc GetBudgetCategories(GetBudgetCategoriesReq) returns (Categories) {
+      option (google.api.http) = {
+        get: "/budgets/{budget_id}/categories"
+      };
+    }
 
     // categories
     rpc AddCategory(AddCategoryReq) returns (Category) {
@@ -86,11 +91,6 @@ service SmmCore {
         put: "/categories/{id}"
       };
     }
-    rpc GetCategories(GetCategoriesReq) returns (Categories) {
-      option (google.api.http) = {
-        get: "/categories"
-      };
-    }
     rpc DeleteCategories(DeleteCategoriesReq) returns (Category) {
       option (google.api.http) = {
         delete: "/categories/{id}"
@@ -150,6 +150,7 @@ message Budget {
   string name = 2;
   int32 start_day = 3;
   int32 monthly_limit = 4;
+  repeated Category categories = 5;
 }
 
 message UpdateBudgetReq {
@@ -187,6 +188,10 @@ message RemoveUserFromBudgetReq {
   int32 budget_id = 2;
 }
 
+message GetBudgetCategoriesReq {
+  int32 budget_id = 2;
+}
+
 message AddCategoryReq {
   string name = 1;
   int32 budget_id = 2;
@@ -209,11 +214,6 @@ message UpdateCategoryReq {
   int32 monthly_limit = 4;
 }
 
-message GetCategoriesReq {
-  bool favorite = 1;
-  int32 budget_id = 2;
-}
-
 message Categories {
   repeated Category categories = 1;
 }