From 3790e12b327a91aad7a39e07155ab4ded6d09037 Mon Sep 17 00:00:00 2001
From: Marc Abramowitz <abramowi@adobe.com>
Date: Wed, 29 Jun 2022 00:27:16 -0700
Subject: [PATCH] Update views when new todo added

Detect new todo by seeing whether the `id` already exists rather than
checking if the `id === 0`, which is not true.

Fixes: GH-3
---
 frontend/stores/store.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/frontend/stores/store.ts b/frontend/stores/store.ts
index cb009b1..6e51293 100644
--- a/frontend/stores/store.ts
+++ b/frontend/stores/store.ts
@@ -18,13 +18,21 @@ class Store {
 
   async saveTodo(todo: Todo) {
     const saved = await endpoint.saveTodo(todo);
-    if (todo.id === 0) {
+    if (this.isNewTodo(todo)) {
       this.addTodo(saved);
     } else {
       this.updateTodo(saved);
     }
   }
 
+  private todoExists(todo: Todo) {
+    return this.todos.some((t) => t.id === todo.id);
+  }
+
+  private isNewTodo(todo: Todo) {
+    return !this.todoExists(todo);
+  }
+
   private addTodo(todo: Todo) {
     this.todos = [...this.todos, todo];
   }