Foundation for the upcoming WhatsApp chatbot flow builder. No runner,
no UI yet — just the plumbing that lets the codebase SEND interactive
messages (button replies + lists) and RECEIVE the taps as structured
message rows. Plan: ~/.claude/plans/understood-research-such-functionality-binary-lake.md
## What's in this PR
### Migration 010_flows.sql
- New tables: flows, flow_nodes, flow_runs, flow_run_events
- Linchpin partial unique index on flow_runs(user_id, contact_id) WHERE status='active' — at most one active run per contact, makes concurrent webhook deliveries idempotent at the DB layer
- Widens messages.content_type CHECK to allow 'interactive'
- New messages.interactive_reply_id column for the tapped button/row id
- RLS on every table; flow_runs added to supabase_realtime publication
- Idempotent throughout — matches the 009_message_actions.sql template
### Interactive Meta senders (src/lib/whatsapp/meta-api.ts)
- sendInteractiveButtons: type='interactive', interactive.type='button', up to 3 reply buttons
- sendInteractiveList: type='interactive', interactive.type='list', up to 10 rows across sections
- Limits exported as INTERACTIVE_LIMITS so flow validation can share the constants
- All Meta caps validated BEFORE the network call (button title ≤20 chars, list row title ≤24 chars, ≤10 total rows, no duplicate row ids, body ≤1024 chars, etc.) — misconfigured flows fail at save time instead of as a customer-facing 400 mid-conversation
### Webhook (src/app/api/whatsapp/webhook/route.ts)
- Extends WhatsAppMessage interface with `interactive?: { type, button_reply?, list_reply? }`
- parseMessageContent returns a new `interactiveReplyId` field; refactored to use a shared `empty` base so every return site picks up the new field without 9 explicit copies
- New `case 'interactive'`: uses the tapped option's TITLE as content_text (so the inbox bubble reads "Existing customer", not a UUID) and stashes the id separately
- 'interactive' added to ALLOWED_CONTENT_TYPES so the messages insert no longer coerces it to 'text'
### Inbox bubble (src/components/inbox/message-bubble.tsx)
- New `case "interactive"` in MessageContent renders the tap with a small "↩ Button reply" affordance so agents reading the inbox can tell at a glance that this was a tap rather than the customer typing the same words
### Types (src/types/index.ts)
- ContentType union extended with 'interactive'
- Message.interactive_reply_id field
### Engine helpers (src/lib/flows/)
- admin-client.ts: thin service-role client wrapper, mirrors automations/admin-client.ts
- meta-send.ts: engineSendInteractiveButtons / engineSendInteractiveList — adapts the Meta senders for service-role use, persists messages with sender_type='bot' content_type='interactive', uses the same phone-variant retry as automations/meta-send.ts. Unused in PR #1; ready for the runner in PR #2
### Tests
- 13 new vitest cases in meta-api.test.ts covering Meta's limit validation + payload-shape assertions for both interactive senders
## Validation
- npm test → 102/102 (was 89; 13 new)
- npm run lint → 0 errors
- npm run typecheck → clean
- npm run build → clean
## What's NOT in this PR
- The runner (dispatchInboundToFlows) — PR #2
- Builder UI / API surface — PR #3
- collect_input / condition / set_tag nodes + templates — PR #4
- react-flow canvas + http_fetch — v2 (PR #5)
## Risks tracked from the plan
- messages.content_type CHECK widening: grep'd every consumer; message-bubble.tsx, reply-quote.tsx, send/route.ts, automations/meta-send.ts all handle the new variant correctly (or accept it as a defaulted fallthrough)
- engineSendText / engineSendInteractive share ~80% of code; deliberately not pre-factored yet — let both stabilize, extract a shared base in PR #2 once the shape settles
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds three WhatsApp-standard affordances to the inbox: per-message
emoji reactions, reply-with-quote, and copy-text. Bubbles stay pure
presenters — actions layer on by composition (MessageActions wraps
MessageBubble). Hover toolbar on desktop, long-press (onContextMenu)
on touch.
Data model (migration 009):
- messages.reply_to_message_id (self-FK, ON DELETE SET NULL) so replies
survive a deleted parent
- message_reactions table — one row per (message, actor) with a unique
constraint, conversation_id denormalised so Supabase Realtime can
filter without a join
- RLS scoped via conversation ownership; service-role bypass for the
webhook
API:
- /api/whatsapp/send accepts reply_to_message_id, resolves the parent's
Meta message_id and forwards it as context.message_id
- /api/whatsapp/react (new) sends Meta reaction payloads and mirrors
the upsert/delete into message_reactions
- Webhook stops storing inbound reactions as fake text messages and
instead upserts/deletes message_reactions; inbound replies (context.id)
resolve to internal UUID and populate reply_to_message_id
UI:
- MessageActions hover toolbar with inline 6-emoji Popover (static set;
no emoji-picker library)
- ReplyQuote shared between the in-bubble quote and the composer chip
- MessageReactions pill row with click-to-toggle
- Thread subscribes to message_reactions filtered by conversation_id;
optimistic upsert with rollback on failure
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Over the course of the project the same swapped-args bug was found
four separate times against the Meta API helpers (config in PR #8,
send in PR #12, broadcast in PR #13, webhook media in PR #14). Each
time the compiler accepted the call because all the args were
strings, so the bug only surfaced at runtime as an opaque Meta error.
This refactor eliminates the entire bug class by converting every
helper to a single options object. A typo like
sendTextMessage({ accessToken: id, phoneNumberId: tok, ... })
is now a TypeScript error at the call site rather than a 400 from
Meta two layers deep.
Helpers updated in src/lib/whatsapp/meta-api.ts:
- verifyPhoneNumber({ phoneNumberId, accessToken })
- sendTextMessage({ phoneNumberId, accessToken, to, text })
- sendTemplateMessage({ phoneNumberId, accessToken, to, templateName, language?, params? })
- getMediaUrl({ mediaId, accessToken })
- downloadMedia({ downloadUrl, accessToken })
Each exported Args interface so routes can type local variables
holding partial argument sets (useful for the broadcast retry loop).
Also factored the duplicated "parse Meta error JSON" block into a
shared throwMetaError() helper — was repeated in 5 places.
Call sites updated (all were already correct after prior fixes, but
now the types enforce it):
- src/app/api/whatsapp/config/route.ts (GET + POST)
- src/app/api/whatsapp/send/route.ts (attempt() closure)
- src/app/api/whatsapp/broadcast/route.ts (retry loop)
- src/app/api/whatsapp/webhook/route.ts (verifyAndBuildUrl)
- src/app/api/whatsapp/media/[mediaId]/route.ts (proxy pipeline)
No behavior change. Build passes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
