add button to to delete an individual chat.

package-lock.json

@@ -7,6 +7,9 @@
     "": {
       "name": "chatgpt-web",
       "version": "0.0.0",
+      "dependencies": {
+        "lodash": "^4.17.21"
+      },
       "devDependencies": {
         "@fullhuman/postcss-purgecss": "^5.0.0",
         "@microsoft/fetch-event-source": "^2.0.1",
@@ -3074,6 +3077,11 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lodash": {
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
     "node_modules/lodash.merge": {
       "version": "4.6.2",
       "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",

package.json

@@ -39,5 +39,8 @@
     "tslib": "^2.5.0",
     "typescript": "^5.0.2",
     "vite": "^4.1.0"
+  },
+  "dependencies": {
+    "lodash": "^4.17.21"
   }
 }

src/app.scss

@@ -110,6 +110,26 @@ $modal-background-background-color-dark: rgba($dark, 0.86) !default; // remove t
   top: 1rem;
 }
 
+.menu-list {
+  a:hover {
+    .delete-btn {
+      display: block;
+    }
+  }
+}
+
+.delete-btn {
+  display: none;
+  position: absolute;
+  width: 20px;
+  height: 20px;
+  top: 50%;
+  right: 0;
+  transform: translateY(-50%);
+  margin-right: 5px;
+
+}
+
 /* Loading chat messages */
 .is-loading {
   opacity: 0.5;

src/lib/Sidebar.svelte

@@ -1,12 +1,23 @@
 <script lang="ts">
     import {params, replace} from 'svelte-spa-router'
 
-  import { apiKeyStorage, chatsStorage, clearChats } from './Storage.svelte'
+    import {apiKeyStorage, chatsStorage, clearChats, deleteChat} from './Storage.svelte'
     import {exportAsMarkdown} from './Export.svelte'
-
+    import _ from 'lodash'
     $: sortedChats = $chatsStorage.sort((a, b) => b.id - a.id)
 
     $: activeChatId = $params && $params.chatId ? parseInt($params.chatId) : undefined
+
+    function delChat(chatId) {
+      if (activeChatId === chatId) {
+        // switch to another chat if deleting the active one
+        const newChatId = _.maxBy($chatsStorage.filter(chat => chat.id !== chatId), 'id').id
+        replace(`/chat/:${newChatId}`).then(() => deleteChat(chatId))
+      } else {
+        deleteChat(chatId)
+      }
+    }
+
 </script>
 
 <aside class="menu">
@@ -19,8 +30,12 @@
                 <ul>
                     {#each sortedChats as chat}
                         <li>
-              <a href={`#/chat/${chat.id}`} class:is-disabled={!$apiKeyStorage} class:is-active={activeChatId === chat.id}
+                            <a style="position: relative" href={`#/chat/${chat.id}`} class:is-disabled={!$apiKeyStorage} class:is-active={activeChatId === chat.id}
-                >{chat.name || `Chat ${chat.id}`}</a
+                            >{chat.name || `Chat ${chat.id}`}
+                                <svg on:click={() => delChat(chat.id)} xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="delete-btn">
+                                    <path stroke-linecap="round" stroke-linejoin="round" d="M9.75 9.75l4.5 4.5m0-4.5l-4.5 4.5M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/>
+                                </svg>
+                            </a
                             >
                         </li>
                     {/each}