# Tasks: enterprise-server-sms

**Change ID**: enterprise-server-sms
**Package**: `@suaveplan/sms`
**Target path**: `server/services/sms`
**Prerequisites on Verdaccio**: `@suaveplan/error`, `@suaveplan/types`, `@suaveplan/retry`, `@suaveplan/suppression`, `@suaveplan/idempotency`, `@suaveplan/templates`, `@suaveplan/logger`

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## 0. Pre-flight (non-negotiable)

- [ ] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
- [ ] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
- [ ] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.

## 1. Scaffold

- [ ] Create directory tree per `proposal.md`.
- [ ] `package.json` at `0.1.0`, `"sideEffects": false`, exports `"."` + `service` + `providers/in-memory`.
- [ ] Deps: all workspace + catalog deps as listed.
- [ ] DevDeps: `vitest catalog:testing`, `@vitest/coverage-istanbul catalog:testing`, `@suaveplan/testing workspace:^`.
- [ ] `tsconfig.json` extending `library-node.json`; `vitest.config.ts` with `createTestConfig()`.
- [ ] Scripts: `lint`, `typecheck`, `test`, `test:coverage`, `build`, `docs:check`.

## 2. Types and errors

- [ ] Define all interfaces and Zod schemas (`SmsMessageSchema`, `SmsServiceOptionsSchema`) in `src/types/sms.types.ts`.
- [ ] Write `sms.types.md` (≥200 words, both examples, API reference).
- [ ] `src/error-codes.ts`: five codes; `registerSmsErrorCodes()`; eager call.

## 3. InMemory provider

- [ ] Implement `InMemoryProvider` in `src/providers/in-memory-provider/in-memory-provider.ts`:
  - `send(message)`: validate E.164 format; store in internal `Map<messageId, SmsRecord>`; return `SmsSendResult` with `status: 'sent'`.
  - `getStatus(messageId)`: return from internal map or `undefined`.
  - `setStatus(messageId, status)`: test helper to simulate delivery updates.
  - `getSentMessages()`: return all recorded messages (testing helper).
- [ ] Write `in-memory-provider.test.ts`: send + getStatus round-trip; setStatus update; getSentMessages.
- [ ] Write `in-memory-provider.md` (≥200 words).

## 4. SMS service

- [ ] Implement `SmsService` in `src/service/sms-service/sms-service.ts`:
  - `send(message)`:
    1. Validate `message.to` as E.164 (regex); throw `SMS_INVALID_NUMBER` if invalid.
    2. Check suppression via `suppressionStore?.check(to)`; throw `SMS_SUPPRESSED` if suppressed.
    3. Idempotency: use `message.idempotencyKey` with `@suaveplan/idempotency` guard if key present.
    4. Call `provider.send(message)` with `@suaveplan/retry`; throw `SMS_SEND_FAILED` on exhaustion.
    5. Log result; OTel span `sms.send`; counter `sms.sends_total` with `status`.
  - `sendBatch(messages)`: parallel sends with `Promise.allSettled`; collect results.
  - `getStatus(messageId)`: delegate to provider.
  - `handleInbound(payload)`: parse via `InboundSmsSchema` Zod schema; throw `SMS_INBOUND_PARSE_FAILED` on invalid.
  - `handleStatusCallback(payload)`: parse via `SmsDeliveryStatusSchema`.
- [ ] Write `sms-service.types.ts`.
- [ ] Write `sms-service.test.ts` (≤500 lines): successful send; suppressed number skips; invalid number throws; retry on provider failure; batch; inbound parse; status callback parse; idempotency dedup.
- [ ] Write `sms-service.md` (≥200 words, simple + advanced, API reference).

## 5. Integration tests

- [ ] `tests/integration.test.ts`: `SmsService` + `InMemoryProvider` + real suppression store (from `@suaveplan/suppression`); send to suppressed number; send batch; verify delivery status updates; `{ timeout: 10000 }`.

## 6. Docs + verify + publish

- [ ] Root `README.md`: quick-start with InMemoryProvider for tests, provider implementation guide, API table.
- [ ] `bunx turbo lint --filter=@suaveplan/sms` — zero errors.
- [ ] `bunx turbo typecheck --filter=@suaveplan/sms` — zero errors.
- [ ] `bunx turbo test --filter=@suaveplan/sms` — all pass.
- [ ] `bunx turbo test:coverage --filter=@suaveplan/sms` — 100%.
- [ ] `bun scripts/publish.ts --package @suaveplan/sms`.
- [ ] Update `CLAUDE.md`; archive to `openspec/archive/2026-04-24-enterprise-server-sms/`.