# Task 13 Report — SettingsPage (auto-assign + working hours editor)

## Files changed
1. **CREATED** `src/lib/workingHours.ts` — exports `DEFAULT_WH`, `DAYS`, `parseWh`. Pure data/helpers, no React/UI.
2. **MODIFIED** `src/pages/SettingsPage.tsx`:
   - Added `Wand2`, `Clock` to the lucide-react imports.
   - Imported `DEFAULT_WH`, `DAYS`, `parseWh` from `../lib/workingHours`.
   - Added local `wh` state (`useState<Record<number, {start,end}|null>>(DEFAULT_WH)`).
   - Replaced the `useEffect` so it now also calls `setWh(parseWh(data.settings.working_hours))`.
   - Extended the PATCH `api.settings.update` payload with `auto_assign_specialist` (0/1) and `working_hours: wh` (object).
   - Added, inside the "Reservas online" card (after the URL/slug block): a "Asignar especialista automáticamente" checkbox (Wand2 icon) and a "Horario del negocio" block rendering `<WorkingHoursEditor value={wh} onChange={setWh} />`.
   - Added a local `WorkingHoursEditor` subcomponent (per-day on/off + start/end `<input type="time">`, "Cerrado" label when off).

## Typecheck / build
- `npm run typecheck` → 0 errors.
- `npm run build` → succeeded (vite build OK, all chunks emitted).

## Runtime smoke
- **Not executed in this subagent session** (subagent has no browser; dev server would need to be started manually by the orchestrator). The plan's Task 13 Step 4 lists this as the runtime check:
  - Boot `npm run dev`, login owner → `/settings`.
  - Toggle the auto-assign checkbox; edit working hours (e.g. Saturday on 10:00–14:00); Save; reload.
  - Expect: GET `/settings` reflects `auto_assign_specialist=1` and `working_hours='{"1":{"start":"09:00","end":"20:00"},...,6:{...},7:null}'` (or whatever was entered).
  - Expect on `/b/<slug>`: wizard collapses to 3 steps (Servicio/Horario/Datos) when toggle is on, and the slot list is constrained to the configured working hours (e.g. Saturday shows only 10:00–14:00 slots).
- **Backend prerequisites (must already be in place for persistence to work):** Task 7 must have run — `FIELDS` whitelist in `server/routes/settings.ts` includes `auto_assign_specialist` and `working_hours`, both SELECTs return them, and the PATCH handler serializes the object → JSON string and coerces the boolean to 0/1. If Task 7 has NOT been applied yet, the PATCH will silently drop both fields (whitelist) and persistence will not occur.

## Deviations
- **Improvement applied (per task spec):** `DEFAULT_WH`/`DAYS`/`parseWh` live in `src/lib/workingHours.ts` from the start, imported by SettingsPage — instead of being defined inline here and refactored out in Task 14. Task 14 (EmployeeModal) will import the same helpers.
- No other deviations from plan Task 13. `WorkingHoursEditor` stays a local component inside SettingsPage (not exported from `workingHours.ts`).

## Self-review
- **Does the PATCH send `working_hours` as an object?** Yes — `working_hours: wh` where `wh` is a `Record<number, {start,end}|null>`. Backend (Task 7 Step 1) is responsible for `JSON.stringify`-ing it before SQL. Since `api.settings.update` is typed `any`, TS does not complain.
- **Does `parseWh` handle the JSON-string returned by GET?** Yes — when `v` is a string it `JSON.parse`s it (catching syntax errors → null), and when null/non-object it falls back to `{...DEFAULT_WH}`. It also tolerates partial maps (missing day keys → `null`).
- **Does the editor toggle per day?** Yes — `toggle(n)` flips `value[n]` between `null` and `{start:"09:00", end:"18:00"}`; when off, the day row shows "Cerrado".
- **First-load safety:** `wh` initialises from `DEFAULT_WH`, so even before the GET resolves the editor renders sane values (Lun–Vie 09–20, Sáb/Dom closed) rather than crashing on `undefined`.
- **Scope discipline:** only `src/lib/workingHours.ts` (new) and `src/pages/SettingsPage.tsx` were touched. `EmployeesPage.tsx`, `BookingPage.tsx`, CSS, and any backend files were left alone.
- **No commit performed** (per CRITICAL constraint #1).

## Concerns / handoff notes for orchestrator
1. **Backend coupling:** this task is only the UI half. Persistence depends on Task 7 having extended `FIELDS` + SELECTs + the serialization block in `server/routes/settings.ts`. Verify Task 7 landed before doing the runtime smoke.
2. **`auto_assign_specialist` initial value from GET:** backend returns it as 0/1 (INTEGER). The checkbox does `!!f.auto_assign_specialist` which coerces correctly. PATCH sends `f.auto_assign_specialist ? 1 : 0`, also correct.
3. **Visual check:** the new "auto-assign" checkbox + working-hours block sit inside the existing `space-y-4 p-5 pt-0` container of the "Reservas online" card, so vertical rhythm is preserved without further CSS work.