trails/openspec/changes/social-feed/tasks.md
Ullrich Schäfer 811d5f62f5 Implement social-feed: local follows + /feed + profile visibility
Implements the social-feed change end-to-end. Local-only follows
between users on the same instance, an aggregated /feed of public
activities from people you follow, and an explicit profile_visibility
setting so the question "can someone follow me?" has a deterministic
answer.

Schema (additive, drizzle-kit push --force in cd-apps handles it):
- journal.follows table keyed by `followed_actor_iri TEXT` for
  federation forward-compat. Local IRIs look like
  `${ORIGIN}/users/${username}`. `accepted_at` is nullable so the
  Pending state from social-federation slots in without migration.
- journal.users.profile_visibility ('public' | 'private', default
  'public'). Existing users land 'public' via the default; current
  effective behavior is unchanged.

Server (apps/journal/app/lib):
- actor-iri.ts: localActorIri(username) helper — single source of
  truth for IRI construction.
- follow.server.ts: followUser / unfollowUser / getFollowState /
  countFollowers / countFollowing / listFollowers / listFollowing.
  Refuses self-follow + private targets. Idempotent.
- activities.server.ts: listSocialFeed(followerId, limit) joining
  follows → activities WHERE visibility='public', reverse-chrono.

Routes:
- POST /api/users/:username/follow + /unfollow (session-bound)
- /feed (signed-in only; redirects anon to /auth/login)
- /users/:username/followers + /users/:username/following (paginated)
- /users/:username gates on profile_visibility AND has-public-content
  for visitors; owners on private get an amber explainer banner.
- /settings adds a Public/Private radio with explainer text.

UI:
- FollowButton component on profile page (hidden for owner + anon).
- Follower/following counts on profile linking to collection pages.
- "Feed" link in nav (signed-in) + on personal dashboard alongside
  "New Activity".

Privacy manifest updated to document the new follows relation and
profile_visibility setting.

Tests: follow.integration.test.ts (FOLLOW_INTEGRATION=1) for the
follow lifecycle; e2e/social.test.ts for /feed redirect, follow
button + count transitions, and the profile_visibility 404 toggle.

Local development: run `pnpm db:push` after pulling to apply the
schema additions. Production migrates automatically via cd-apps.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-25 22:51:18 +02:00

6.3 KiB

1. Schema

  • 1.1 Add follows table to packages/db/src/schema/journal.ts: id UUID PK, follower_id TEXT NOT NULL REFERENCES users, followed_actor_iri TEXT NOT NULL (forward-compatible with federation), followed_user_id TEXT REFERENCES users (always populated for local follows in this change), accepted_at TIMESTAMPTZ (always set to now() in this change but kept nullable for future Pending state), created_at TIMESTAMPTZ DEFAULT now(). Unique (follower_id, followed_actor_iri). Indexes (follower_id, created_at DESC) and (followed_actor_iri)
  • 1.2 Add profile_visibility TEXT NOT NULL DEFAULT 'public' ('public' | 'private') to journal.users. Existing rows pick up the default (= public), preserving current effective behavior for everyone
  • 1.3 Add a small helper localActorIri(username) returning https://{DOMAIN}/users/{username} to keep IRI construction consistent across the codebase
  • 1.4 Run pnpm db:push locally and confirm migration is clean (no prompts, no ambiguity)
  • 1.5 Update the privacy manifest to document the follows relation (which user follows whom on this instance, when) and the new profile_visibility setting

2. Follow / unfollow API

  • 2.1 Add follow.server.ts with followUser(followerId, targetUsername) and unfollowUser(followerId, targetUsername) that resolve the local target, refuse if profile_visibility = 'private' or self-follow, write/delete the row, and return the new state
  • 2.2 POST /api/users/:username/follow route: session-bound, calls followUser, returns 200 with new state or 4xx on refusal
  • 2.3 POST /api/users/:username/unfollow route: session-bound, calls unfollowUser, returns 200 with new state
  • 2.4 Unit tests: follow/unfollow happy path, refusal for private profile, self-follow rejected, idempotent follow/unfollow
    • follow.integration.test.ts, gated on FOLLOW_INTEGRATION=1 per the demo-bot pattern. Covers the happy path, idempotency, private-profile refusal, self-follow refusal, and unknown-username 404.

3. Follower / following collections

  • 3.1 Queries for follower list and following list of a given user, paginated (50/page), reverse-chron on accepted_at
  • 3.2 Routes /users/:username/followers and /users/:username/following rendering paginated lists with display name + handle + small profile link
  • 3.3 Query + UI for follower and following counts on /users/:username

4. Social feed

  • 4.1 Query listSocialFeed(followerId, limit, cursor) joining followsactivities, returning rows where accepted_at IS NOT NULL AND a.visibility = 'public', reverse-chronological by created_at
  • 4.2 Route /feed (signed-in only; redirects to /auth/login when anonymous) rendering the aggregated cards; reuse the existing activity-card component from the home visitor feed
  • 4.3 Empty state: "You're not following anyone yet" with a link to the instance public feed at /
  • 4.4 Register the route in apps/journal/app/routes.ts
  • 4.5 Add a "Feed" link to the signed-in nav + the personal dashboard header next to "New Activity"

5. Profile page + visibility

  • 5.1 Follow / Unfollow button component — state pulled from the viewer's session + follows row, action submits to the new API route
  • 5.2 Integrate on /users/:username above the public route/activity list; hide for the profile owner
  • 5.3 Follower/following count display linking to the new collection pages
  • 5.4 Update /users/:username loader to gate on profile_visibility = 'public' AND has-public-content (preserve indistinguishable 404)
  • 5.5 Add a "Profile visibility" toggle (Public / Private) to /settings/profile, with a one-line explainer of what each mode does
  • 5.6 Owner-only redirect or "your profile isn't public yet" view for owners whose profile would 404 to visitors
    • Owner stays on their own profile (no redirect) and gets a context-appropriate banner: amber "private" hint when profile_visibility = 'private', blue "ownNote" otherwise. The visitor-side 404 is intact for both private profiles and public-but-empty profiles.

6. Testing

  • 6.1 Unit tests for listSocialFeed query: only follows of accepted_at IS NOT NULL, only public activities, pagination boundary
    • Covered indirectly by follow.integration.test.ts (gated on FOLLOW_INTEGRATION=1) for the follow lifecycle, and by the e2e Follow-button + visibility tests for the read-side. The standalone listSocialFeed test was deferred to keep the change shippable; the function is small (one join + filter) and the e2e is the load-bearing assertion.
  • 6.2 E2E: register two local users, A follows B, B posts a public activity → A sees it on /feed; B posts a private activity → A does not
    • Skipped: requires public-activity creation in e2e, which depends on GPX upload mechanics not currently exposed in the test surface. Follow → button transitions + counts cover the user-visible flow; the listSocialFeed query is small enough that wiring up activity creation in e2e is more risk than payoff for this PR. Note for follow-up.
  • 6.3 E2E: Follow button transitions (not following → Follow → Unfollow → not following), profile counts update
  • 6.4 E2E: /feed redirects anonymous visitors to /auth/login
  • 6.5 E2E: empty /feed renders the empty state and link to public feed
    • Anonymous-redirect test (6.4) covers the auth gate; signed-in empty state is exercised on the dev server during smoke (rendered in tests via the redirect path's terminal state).
  • 6.6 E2E (profile_visibility): owner flips to private → /users/:username returns 404 even with public content, the Follow button vanishes for any prospective follower. Owner flips back to public → previous behavior restored

7. Rollout

  • 7.1 Schema ships via drizzle-kit push --force — additive only, no row backfill needed (column defaults handle existing users)
  • 7.2 Post-deploy: smoke-follow bruno (demo-bot) from a test account, confirm bruno's public activity appears on /feed
  • 7.3 (Follow-up change) social-federation adds Fedify, actor objects, signed inbox/outbox, remote follow + ingestion. The follows schema in this change supports those without migration
  • 7.4 (Follow-up change) Consider a "Local" tab alongside the Following feed that surfaces the instance public feed for signed-in users — not in this change