feat(youtube): add new video in channel trigger

packages/backend/src/apps/youtube/triggers/new-video-in-channel/index.ts

@@ -0,0 +1,48 @@
+import defineTrigger from '../../../../helpers/define-trigger';
+
+export default defineTrigger({
+  name: 'New video in channel',
+  key: 'newVideoInChannel',
+  description:
+    'Triggers when a new video is published to a specific Youtube channel.',
+  arguments: [
+    {
+      label: 'Channel ID',
+      key: 'channelId',
+      type: 'string' as const,
+      required: true,
+      description:
+        'Get the new videos uploaded to this channel. If the URL of the youtube channel looks like this www.youtube.com/channel/UCbxb2fqe9oNgglAoYqsYOtQ then you must use UCbxb2fqe9oNgglAoYqsYOtQ as a value in this field.',
+      variables: true,
+    },
+  ],
+
+  async run($) {
+    const channelId = $.step.parameters.channelId as string;
+
+    const params = {
+      pageToken: undefined as unknown as string,
+      part: 'snippet',
+      channelId: channelId,
+      maxResults: 50,
+      order: 'date',
+      type: 'video',
+    };
+
+    do {
+      const { data } = await $.http.get('/v3/search', { params });
+      params.pageToken = data.nextPageToken;
+
+      if (data?.items?.length) {
+        for (const item of data.items) {
+          $.pushTriggerItem({
+            raw: item,
+            meta: {
+              internalId: item.etag,
+            },
+          });
+        }
+      }
+    } while (params.pageToken);
+  },
+});