refactor(xtream): allow fallback extension when user profile is undefined

src/xtream.ts

@@ -268,11 +268,15 @@ export class Xtream<T extends CustomSerializers = CustomSerializers> {
       }
 
       // Check if requested format is allowed for the user
-      // Fall back to first allowed format if not
-      if (!this.userProfile!.allowed_output_formats.includes(stream.extension)) {
-        format = this.userProfile!.allowed_output_formats[0];
+      // If not, fall back to first allowed format for the user
+      // Otherwise, if no allowed formats are specified, fall back to requested format
+      // Some services may return empty objects for userProfile
+      if (
+        !this.userProfile?.allowed_output_formats.includes(stream.extension)
+      ) {
+        format =
+          this.userProfile?.allowed_output_formats[0] ?? stream.extension;
       }
-
       return `${this.baseUrl}/live/${this.#username}/${this.#password}/${stream.streamId}.${format}`;
     }
 

tests/main.test.ts

@@ -264,6 +264,56 @@ describe('Xtream API', () => {
 
     expect(url).toBe('http://example.com/timeshift/test/password/60/2021-01-01:00-00/1.ts');
   });
+
+  test('Falls back to requested extension when userProfile has empty allowed_output_formats', async () => {
+    const xtream = new Xtream({
+      url: 'http://example.com',
+      username: 'test',
+      password: 'password',
+    });
+
+    // Set userProfile with empty allowed_output_formats array
+    xtream.userProfile = {
+      username: 'test',
+      password: 'password',
+      message: '',
+      auth: 1,
+      status: 'Active',
+      exp_date: '1767542400',
+      is_trial: '0',
+      active_cons: 0,
+      created_at: '1735084800',
+      max_connections: '5',
+      allowed_output_formats: [],
+    };
+
+    const url = xtream.generateStreamUrl({
+      type: 'channel',
+      streamId: '123',
+      extension: 'm3u8',
+    });
+
+    expect(url).toBe('http://example.com/live/test/password/123.m3u8');
+  });
+
+  test('Falls back to requested extension when userProfile is undefined', () => {
+    const xtream = new Xtream({
+      url: 'http://example.com',
+      username: 'test',
+      password: 'password',
+    });
+
+    // Ensure userProfile is undefined
+    xtream.userProfile = undefined;
+
+    const url = xtream.generateStreamUrl({
+      type: 'channel',
+      streamId: '456',
+      extension: 'ts',
+    });
+
+    expect(url).toBe('http://example.com/live/test/password/456.ts');
+  });
 });
 
 describe('JSON:API serializer', () => {