feat(route): follow (#16683)

* feat(route): follow

* add link

* use profile instead of subscriptions

* change the feed title

lib/routes/follow/namespace.ts

@@ -0,0 +1,6 @@
+import type { Namespace } from '@/types';
+
+export const namespace: Namespace = {
+    name: 'Follow',
+    url: 'app.follow.is',
+};

lib/routes/follow/profile.ts

@@ -0,0 +1,38 @@
+import type { Data, Route } from '@/types';
+import { Context } from 'hono';
+import ofetch from '@/utils/ofetch';
+import type { FollowResponse, Profile, Subscription } from './types';
+
+export const route: Route = {
+    name: 'User subscriptions',
+    path: '/profile/:uid',
+    example: '/profile/41279032429549568',
+    radar: [
+        {
+            source: ['app.follow.is/profile/:uid'],
+            target: '/follow/profile/:uid',
+        },
+    ],
+    handler,
+    maintainers: ['KarasuShin'],
+    features: {
+        supportRadar: true,
+    },
+};
+
+async function handler(ctx: Context): Promise<Data> {
+    const uid = ctx.req.param('uid');
+    const host = 'https://api.follow.is';
+
+    const [profile, subscriptions] = await Promise.all([ofetch<FollowResponse<Profile>>(`${host}/profiles?id=${uid}`), ofetch<FollowResponse<Subscription[]>>(`${host}/subscriptions?userId=${uid}`)]);
+
+    return {
+        title: `${profile.data.name} - User subscriptions`,
+        item: subscriptions.data.map((subscription) => ({
+            title: subscription.feeds.title,
+            description: subscription.feeds.description,
+            link: `https://app.follow.is/feed/${subscription.feedId}`,
+        })),
+        link: `https://app.follow.is/profile/${uid}`,
+    };
+}

lib/routes/follow/types.ts

@@ -0,0 +1,38 @@
+export interface FollowResponse<T> {
+    code: number;
+    data: T;
+}
+
+export interface Subscription {
+    category: string;
+    feedId: string;
+    feeds: {
+        checkAt: string;
+        description: string;
+        errorAt: unknown;
+        errorMessage: unknown;
+        etagHeader: string;
+        id: string;
+        image: unknown;
+        lastModifiedHeader: string;
+        ownerUserId: string | null;
+        siteUrl: string;
+        title: string;
+        ttl: number;
+        url: string;
+    };
+    isPrivate: boolean;
+    title: string | null;
+    userId: string;
+    view: number;
+}
+
+export interface Profile {
+    id: string;
+    name: string;
+    email: string;
+    emailVerified: unknown;
+    image: string;
+    handle: unknown;
+    createdAt: string;
+}