Fix realtime updates for sidebar EmailsList and thread Conversations

[Copilot]

Realtime was effectively broken in two places: the sidebar never reflected new threads or replies, and the open conversation view never showed incoming messages without a manual refresh.

Root causes

• No thread UPDATE events fired on email receipt — the inbound webhook never updated the thread record when a new email arrived (unless it was reopening a closed thread). With no UPDATE event, the UPDATE_THREAD realtime handler had nothing to catch. For new threads, this also meant postgres_changes INSERT delivery was the only mechanism, which is unreliable without Realtime explicitly enabled per-table in Supabase.
• No realtime subscription in Conversations — the thread detail view was fully static after SSR; new emails only appeared after a full page reload.
• No UPDATE listener in EmailsList — only INSERT was subscribed, so status changes and last_message_created_at bumps were ignored.

Changes

app/api/webhooks/inbound-email/route.ts

Always update thread.last_message_created_at (and optionally status) in a single call after every email insert — new thread or reply:

const threadUpdate: { last_message_created_at: string; status?: 'open' } = {
  last_message_created_at: emailData.created_at,
};
if (thread.status === 'closed') threadUpdate.status = 'open';
await supabase.from('thread').update(threadUpdate).match({ id: thread.id });

This fires a reliable thread UPDATE event on every inbound email, making the UPDATE_THREAD handler the primary realtime path — bypassing the fragile per-table INSERT event delivery.

components/organization/sidebar/EmailsList.tsx

• Added UPDATE listener alongside INSERT on the thread channel.
• UPDATE_THREAD reducer handles: remove thread if status no longer matches the active filter, add it if it now does, otherwise update-in-place and re-sort by last_message_created_at desc.
• INSERT_THREAD now deduplicates: if the thread was already added via the UPDATE path (or a reconnect replay), the INSERT is a no-op.

components/organization/conversation/Conversations.tsx

• Conversations lifted into local useState (seeded from SSR prop).
• Subscribes to email INSERT filtered by thread_id; new messages append in real time with deduplication.
• Scroll-to-bottom effect now triggers on every conversations state change, not just on mount.
• Cleanup nulls channelRef before calling unsubscribe() to avoid stale-callback races.

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Project	Deployment	Actions	Updated (UTC)
answerify	Ready	Preview, Comment	Mar 1, 2026 1:14pm