v3: added a chatbox

api/model/db.ts

@@ -2,6 +2,7 @@ import { randomBytes, scryptSync } from "node:crypto";
 import { DatabaseSync, type SQLOutputValue } from "node:sqlite";
 import {
   type Category,
+  type ChatMessage,
   type Comment,
   Dump,
   isRole,
@@ -304,6 +305,43 @@ export function commentRowToApi(row: CommentRow): Comment {
   };
 }
 
+export interface ChatMessageRow {
+  id: string;
+  user_id: string;
+  body: string;
+  created_at: string;
+  updated_at: string | null;
+  author_username: string;
+  author_avatar_mime: string | null;
+  [key: string]: SQLOutputValue;
+}
+
+export function isChatMessageRow(obj: unknown): obj is ChatMessageRow {
+  return !!obj && typeof obj === "object" &&
+    "id" in obj && typeof obj.id === "string" &&
+    "user_id" in obj && typeof obj.user_id === "string" &&
+    "body" in obj && typeof obj.body === "string" &&
+    "created_at" in obj && typeof obj.created_at === "string" &&
+    "updated_at" in obj &&
+    (typeof obj.updated_at === "string" || obj.updated_at === null) &&
+    "author_username" in obj && typeof obj.author_username === "string" &&
+    "author_avatar_mime" in obj &&
+    (typeof obj.author_avatar_mime === "string" ||
+      obj.author_avatar_mime === null);
+}
+
+export function chatMessageRowToApi(row: ChatMessageRow): ChatMessage {
+  return {
+    id: row.id,
+    userId: row.user_id,
+    body: row.body,
+    createdAt: new Date(row.created_at),
+    updatedAt: row.updated_at ? new Date(row.updated_at) : undefined,
+    authorUsername: row.author_username,
+    authorAvatarMime: row.author_avatar_mime ?? undefined,
+  };
+}
+
 export interface PlaylistRow {
   id: string;
   user_id: string;