feat(transaction): #80 calculate account balances

handler/transaction.go

@@ -37,9 +37,28 @@ func (h TransactionImpl) Handle(r *http.ServeMux) {
 	r.Handle("GET /transaction", h.handleTransactionPage())
 	r.Handle("GET /transaction/{id}", h.handleTransactionItemComp())
 	r.Handle("POST /transaction/{id}", h.handleUpdateTransaction())
+	r.Handle("POST /transaction/recalculate", h.handleRecalculate())
 	r.Handle("DELETE /transaction/{id}", h.handleDeleteTransaction())
 }
 
+func (h TransactionImpl) handleRecalculate() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		user := middleware.GetUser(r)
+		if user == nil {
+			utils.DoRedirect(w, r, "/auth/signin")
+			return
+		}
+
+		err := h.s.RecalculateBalances(user)
+		if err != nil {
+			handleError(w, r, err)
+			return
+		}
+
+		utils.TriggerToastWithStatus(w, r, "success", "Balances recalculated", http.StatusOK)
+	}
+}
+
 func (h TransactionImpl) handleTransactionPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		user := middleware.GetUser(r)