# Task 14 — `EmployeeModal`: especialidades, horario, eficiencia

## File changed
- `src/pages/EmployeesPage.tsx` — extended `EmployeeModal` with three new controls (specialties chips, efficiency range, working hours editor with inherit toggle); added import of `DEFAULT_WH`, `DAYS`, `parseWh` from `../lib/workingHours`; extended `useEffect` sync and mutation payload.

No other files touched. `src/lib/workingHours.ts` was already created in Task 13 and is only imported.

## Typecheck / build
- `npm run typecheck` → **0 errors**.
- `npm run build` → **succeeds** (2462 modules transformed, 5.11s).
- `npm run lint` → fails with a pre-existing repo-level config error (`ESLint couldn't find an eslint.config.(js|mjs|cjs)` — ESLint 9 migration not done). Not caused by this task; same result on `main`.

## Runtime smoke
Not executed manually (no browser session in this subagent run). Static verification instead:
- Backend wiring confirmed in `server/routes/employees.ts`:
  - POST accepts `specialties`, `working_hours`, `efficiency_score` (line 76).
  - PATCH handles `working_hours === null` → stored as `null` (line 119) — exactly the "inherit from business" semantics the UI sends.
  - `efficiency_score` coerced via `Number(...)` server-side; `specialties` JSON-stringified if array.
- GET `/employees` selects these columns (Task 7), so reopening the modal will prefill via the `useEffect` sync branch.
- The `Employee` type in `shared/types.ts` declares all three fields optional (lines 53–55), so the prefill reads (`employee.specialties`, `employee.efficiency_score`, `employee.working_hours`) typecheck cleanly.

Recommended manual follow-up (per task spec): boot `npm run dev`, owner → `/employees`, edit an employee — add "Corte" + "Coloración", set efficiency 85, uncheck inherit and set custom hours, save, reopen to confirm persistence; toggle inherit back on, save, confirm `working_hours` column is `null` in DB.

## Deviations
- Plan Step 1 said to *create* `src/lib/workingHours.ts` and refactor SettingsPage. Per the task brief, the file already exists (Task 13) and SettingsPage already imports from it — so I only added the import to `EmployeesPage.tsx`. No other files modified.
- Lint not run green (pre-existing repo config issue, not introduced here).

## Self-review
- **Payload shape:**
  - `specialties` sent as a `string[]` (the state is `string[]`, no manual serialization). ✓
  - `efficiency_score` sent as `number` (`efficiency` is `number`, initialized via `Number(e.target.value)`). ✓
  - `working_hours` sent as `null` when `inheritHours === true`, otherwise the live `wh` map. ✓ Matches the backend's `working_hours === null ? null : …` branch.
- **Edit-mode prefill:** `useEffect[open, employee]` reads `employee.specialties` (with `Array.isArray` guard), `employee.efficiency_score` (with `typeof === "number"` guard, default 50), and `parseWh(employee.working_hours)` plus a `hasOwn` check so a stored `null`/empty map flips `inheritHours` back to `true` and resets `wh` to `DEFAULT_WH`. ✓
- **Duplicate prevention in chips input:** `setSpecialties((a) => [...new Set([...a, specialtyInput.trim()])])` — `Set` dedupes by value; case-sensitive (so "Corte" ≠ "corte"), which matches how the backend stores them. ✓
- **Reset on close/new:** the `else` branch of the `useEffect` clears `specialties`, `specialtyInput`, `efficiency`, `inheritHours`, and `wh` — no stale state leaks between create/edit sessions. ✓
- **Type safety on `wh[n]`:** narrowed with `!(wh[n])` / `wh[n]!.start` and an explicit type cast on the spread (`as { start: string; end: string }`) to avoid `null`-widening complaints — typecheck confirms.