feat: implement deduplication and all media types in bot listener

- Expand registered bot listener to support sticker and video_note media types
- Check database for existing telegramFileUniqueId to bypass forwarding duplicates
- Update tests to assert deduplication and new formats handling in bot.test.ts

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/bot.ts

@@ -1,3 +1,4 @@
+import { eq } from 'drizzle-orm';
 import { nanoid } from 'nanoid';
 import { type Context, Telegraf } from 'telegraf';
 import { db, files as fileSchema } from './db';
@@ -18,11 +19,18 @@ export const startBot = async (): Promise<Telegraf<Context>> => {
 
     // Cast bot.on elements individually or explicitly as any to bypass Telegraf v4 typescript deprecation warnings on array syntax
     (bot as any).on(
-      ['document', 'photo', 'video', 'audio', 'voice', 'animation'],
+      ['document', 'photo', 'video', 'audio', 'voice', 'animation', 'sticker', 'video_note'],
       async (ctx: any) => {
         try {
-          const fileType: 'document' | 'photo' | 'video' | 'audio' | 'voice' | 'animation' = ctx
-            .message.document
+          const fileType:
+            | 'document'
+            | 'photo'
+            | 'video'
+            | 'audio'
+            | 'voice'
+            | 'animation'
+            | 'sticker'
+            | 'video_note' = ctx.message.document
             ? 'document'
             : ctx.message.photo
               ? 'photo'
@@ -32,10 +40,20 @@ export const startBot = async (): Promise<Telegraf<Context>> => {
                   ? 'audio'
                   : ctx.message.voice
                     ? 'voice'
-                    : 'animation';
+                    : ctx.message.animation
+                      ? 'animation'
+                      : ctx.message.sticker
+                        ? 'sticker'
+                        : ctx.message.video_note
+                          ? 'video_note'
+                          : 'document';
 
           const fileObj =
-            fileType === 'photo' ? ctx.message.photo.slice(-1)[0] : ctx.message[fileType];
+            fileType === 'photo'
+              ? ctx.message.photo.slice(-1)[0]
+              : fileType === 'sticker'
+                ? ctx.message.sticker
+                : ctx.message[fileType];
           const { file_id, file_size, mime_type } = fileObj;
           const fileName =
             ctx.message.document?.file_name ||
@@ -58,6 +76,26 @@ export const startBot = async (): Promise<Telegraf<Context>> => {
             return ctx.reply(`File size exceeds ${maxSize / (1024 * 1024)}MB limit`);
           }
 
+          const existing = await db
+            .select()
+            .from(fileSchema)
+            .where(eq(fileSchema.telegramFileUniqueId, fileObj.file_unique_id))
+            .limit(1);
+
+          if (existing && existing.length > 0) {
+            const url = `${config.baseUrl}/f/${existing[0].publicId}`;
+            await ctx.reply(`File berhasil diupload! 📎\n\nDownload: ${url}`, {
+              reply_parameters: { message_id: ctx.message.message_id },
+            });
+            logger.info('Duplicate file detected in bot, returned existing link', {
+              publicId: existing[0].publicId,
+              fileType,
+              fileName,
+              uploader: ctx.from.id,
+            });
+            return;
+          }
+
           const result = await forwardToStorage(file_id, fileName);
           const publicId = nanoid();
 

test/bot.test.ts

@@ -31,11 +31,24 @@ mock.module('telegraf', () => {
 const mockInsert = mock(() => ({
   values: mock(() => Promise.resolve()),
 }));
+const mockLimit = mock(() => Promise.resolve([]));
+const mockWhere = mock(() => ({
+  limit: mockLimit,
+}));
+const mockFrom = mock(() => ({
+  where: mockWhere,
+}));
+const mockSelect = mock(() => ({
+  from: mockFrom,
+}));
 mock.module('../src/db/index', () => ({
   db: {
     insert: mockInsert,
+    select: mockSelect,
+  },
+  files: {
+    telegramFileUniqueId: 'telegram_file_unique_id',
   },
-  files: {},
 }));
 
 // Mock forwardToStorage
@@ -60,6 +73,8 @@ describe('Telegram Bot Handler', () => {
     mockOn.mockClear();
     mockUse.mockClear();
     mockInsert.mockClear();
+    mockLimit.mockClear();
+    mockLimit.mockResolvedValue([]);
     mockForwardToStorage.mockClear();
     infoSpy.mockClear();
     errorSpy.mockClear();
@@ -72,7 +87,7 @@ describe('Telegram Bot Handler', () => {
     expect(bot).toBeDefined();
     expect(mockCommand).toHaveBeenCalledWith('start', expect.any(Function));
     expect(mockOn).toHaveBeenCalledWith(
-      ['document', 'photo', 'video', 'audio', 'voice', 'animation'],
+      ['document', 'photo', 'video', 'audio', 'voice', 'animation', 'sticker', 'video_note'],
       expect.any(Function),
     );
     expect(mockUse).toHaveBeenCalled();
@@ -154,6 +169,108 @@ describe('Telegram Bot Handler', () => {
     expect(replyMock).toHaveBeenCalledWith(expect.stringContaining('exceeds'));
   });
 
+  it('should return existing download link for duplicates without uploading again', async () => {
+    const { startBot } = await import('../src/bot');
+    await startBot();
+
+    const fileHandler = mockOn.mock.calls[0][1];
+    const replyMock = mock(() => Promise.resolve());
+
+    // Mock DB to return an existing match
+    mockLimit.mockResolvedValueOnce([
+      {
+        publicId: 'already_exists_abc',
+        telegramFileId: 'stored_file_id',
+        telegramFileUniqueId: 'doc_uniq_123',
+      },
+    ]);
+
+    const ctx = {
+      message: {
+        message_id: 42,
+        document: {
+          file_id: 'doc_123',
+          file_unique_id: 'doc_uniq_123',
+          file_size: 1024,
+          mime_type: 'application/pdf',
+          file_name: 'cv.pdf',
+        },
+      },
+      from: {
+        id: 999,
+      },
+      reply: replyMock,
+    };
+
+    await fileHandler(ctx);
+    expect(mockForwardToStorage).not.toHaveBeenCalled();
+    expect(mockInsert).not.toHaveBeenCalled();
+    expect(replyMock).toHaveBeenCalledWith(
+      expect.stringContaining('already_exists_abc'),
+      expect.any(Object),
+    );
+  });
+
+  it('should process sticker uploads', async () => {
+    const { startBot } = await import('../src/bot');
+    await startBot();
+
+    const fileHandler = mockOn.mock.calls[0][1];
+    const replyMock = mock(() => Promise.resolve());
+    const ctx = {
+      message: {
+        message_id: 43,
+        sticker: {
+          file_id: 'sticker_123',
+          file_unique_id: 'sticker_uniq_123',
+          file_size: 1024,
+        },
+      },
+      from: {
+        id: 999,
+      },
+      reply: replyMock,
+    };
+
+    await fileHandler(ctx);
+    expect(mockForwardToStorage).toHaveBeenCalledWith('sticker_123', 'file');
+    expect(mockInsert).toHaveBeenCalled();
+    expect(replyMock).toHaveBeenCalledWith(
+      expect.stringContaining('File berhasil diupload'),
+      expect.any(Object),
+    );
+  });
+
+  it('should process video note uploads', async () => {
+    const { startBot } = await import('../src/bot');
+    await startBot();
+
+    const fileHandler = mockOn.mock.calls[0][1];
+    const replyMock = mock(() => Promise.resolve());
+    const ctx = {
+      message: {
+        message_id: 44,
+        video_note: {
+          file_id: 'video_note_123',
+          file_unique_id: 'video_note_uniq_123',
+          file_size: 1024,
+        },
+      },
+      from: {
+        id: 999,
+      },
+      reply: replyMock,
+    };
+
+    await fileHandler(ctx);
+    expect(mockForwardToStorage).toHaveBeenCalledWith('video_note_123', 'file');
+    expect(mockInsert).toHaveBeenCalled();
+    expect(replyMock).toHaveBeenCalledWith(
+      expect.stringContaining('File berhasil diupload'),
+      expect.any(Object),
+    );
+  });
+
   afterAll(() => {
     mock.restore();
   });