Phase 4: Post-meeting pipeline — transcript, summary, AI chat, recording

[newbie-del]

Wire up the post-meeting pipeline to LiveKit + Gemini, replacing the Stream Chat / OpenAI dependencies for this flow:

• Schema: add transcript column, meetingChatMessages table
• Gemini helper (src/lib/gemini.ts) for summary + chat
• Worker (agent.py): capture transcript during session, POST to ingest endpoint
• Ingest endpoint (api/livekit/transcript): receive + store transcript, trigger Inngest
• Inngest summarizer: read transcript from DB, summarize with Gemini
• Procedures: getTranscript reads from DB, endMeeting → processing status, getChatMessages + sendChatMessage (Postgres-backed AI chat)
• Recording: LiveKit egress → R2 with backfill in getOne
• UI: new meeting-chat.tsx replaces Stream Chat; recording null guard
• Remove: chat-provider.tsx, chat-ui.tsx, generateChatToken, message.new webhook
• Deps: add @livekit/components-react, livekit-client, @livekit/components-styles, @google/genai, livekit-server-sdk

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[newbie-del]

@copilot resolve the merge conflicts in this pull request

[newbie-del]

@copilot resolve the merge conflicts in this pull request

[Copilot]

Pull request overview

This PR implements “Phase 4” of the post-meeting pipeline by moving transcript ingest, summarization, and post-meeting AI chat to a LiveKit + Gemini stack, while also adding LiveKit room recording to R2 and updating the call/meeting UIs accordingly.

Changes:

• Add transcript ingest + DB storage, and an Inngest-driven Gemini summarizer that transitions meetings from processing → completed.
• Replace Stream Chat–based post-meeting chat with a Postgres-backed “Ask AI about this meeting” chat powered by Gemini.
• Add LiveKit egress recording to R2 (plus a local-dev backfill path) and update call UI components (tiles, chat, reactions, roster behavior).

Reviewed changes

Copilot reviewed 21 out of 22 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
src/modules/meetings/ui/components/meeting-chat.tsx	New post-meeting “Ask AI” chat UI backed by tRPC procedures.
src/modules/meetings/ui/components/completed-state.tsx	Swap Stream Chat provider for the new MeetingChat; guard recording playback when URL is missing.
src/modules/meetings/ui/components/chat-ui.tsx	Remove Stream Chat UI implementation.
src/modules/meetings/ui/components/chat-provider.tsx	Remove Stream Chat session/provider wrapper.
src/modules/meetings/server/procedures.ts	Add transcript-from-DB reads, Gemini-backed post-meeting chat procedures, recording start/backfill, and status updates.
src/modules/call/ui/components/participants-panel.tsx	Only show mute button when a mute handler is provided.
src/modules/call/ui/components/conference-tile.tsx	New LiveKit-based conference tile with pin + fullscreen support and better placeholders.
src/modules/call/ui/components/call-reactions.tsx	New emoji reactions over LiveKit data channel with floating overlay.
src/modules/call/ui/components/call-connect.tsx	Enable browser audio processing defaults (echo cancellation, etc.) for mic capture.
src/modules/call/ui/components/call-chat.tsx	New in-call chat panel supporting “Everyone” and “AI only” (private) messaging.
src/modules/call/ui/components/call-active.tsx	Replace prior call UI/sidebar with pinned focus layout, roster panel, in-call chat, and reactions.
src/lib/livekit.ts	Pass agent display name via metadata and add LiveKit egress recording helpers for R2.
src/lib/gemini.ts	New server-only Gemini helper used by summarizer and post-meeting chat.
src/inngest/functions.ts	Replace OpenAI agent-kit summarizer with Gemini summarization; add idempotency and missing-transcript handling.
src/db/schema.ts	Add meetings.transcript and new meeting_chat_messages table + enums/indexes.
src/app/api/webhook/route.ts	Remove Stream Chat + OpenAI message.new webhook handling for post-meeting chat.
src/app/api/livekit/webhook/route.ts	Update egress_ended handling to construct public recording URL from R2 object key.
src/app/api/livekit/transcript/route.ts	New transcript ingest endpoint secured by shared secret; triggers Inngest pipeline.
package.json	Add Gemini + LiveKit dependencies; maintain Node >= 20 engines requirement.
package-lock.json	Lockfile updates for newly added dependencies.
next.config.ts	Enable experimental.optimizePackageImports for several large barrel-export packages.
agent-worker/agent.py	Capture transcript in the LiveKit agent worker and POST it to the ingest endpoint; tune Gemini Live model settings.

Suppressed comments (1)

src/modules/call/ui/components/call-reactions.tsx:43

• The spawn helper schedules a setTimeout that will call setFloats even if the component unmounts. Track timeout ids and clear them in a cleanup effect to avoid state updates on an unmounted component.

export const CallReactions = () => {
    const [open, setOpen] = useState(false);
    const [floats, setFloats] = useState<Floating[]>([]);

    const spawn = useCallback((emoji: string) => {
        const id = `${Date.now()}-${_seq++}`;
        const left = 8 + Math.random() * 84;
        setFloats((prev) => [...prev, { id, emoji, left }]);
        // Remove after the float animation finishes so the DOM stays small.
        window.setTimeout(
            () => setFloats((prev) => prev.filter((f) => f.id !== id)),
            3800
        );
    }, []);

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Project	Deployment	Actions	Updated
connex-ai	Ready	Preview	Sep 1, 2026 11:31am UTC

[newbie-del]

checked

[newbie-del]

checked

[Copilot]

Pull request overview

This PR implements “Phase 4” of the post-meeting pipeline by moving transcript ingest, summarization, and post-meeting AI chat to a LiveKit + Gemini stack, while also add...

Implemented the requested review-thread fixes in 124ed31 and validated with lint (npm run lint) plus CodeQL (0 alerts).