# Fidelity UK PlanViewer provider

Viktor's UK workplace pension is hosted at `pv.planviewer.fidelity.co.uk`. There
is no public API for individual members — the provider reverse-engineers the
private JSON backend at `prd.wiciam.fidelity.co.uk/cvmfe/api/*` that the SPA
itself calls, and uses Playwright only to keep a long-lived login session
alive.

## Architecture

```
┌─────────────┐    storage_state.json     ┌──────────────────┐
│  Vault KV   │◀─── (quarterly reseed) ───│  fidelity-seed   │
│ broker-sync │                           │  (headed browser) │
└──────┬──────┘                           └──────────────────┘
       │                                           ▲
       │ loads on start                            │ Viktor runs once
       ▼                                          when session expires
┌────────────────────┐
│   Monthly CronJob   │
│ broker-sync-fidelity│
└────────────┬────────┘
             │ headless Chromium
             ▼
┌─────────────────────────────────┐      ┌────────────────────────────────┐
│ pv.planviewer.fidelity.co.uk    │◀─────│ navigate dashboard → capture   │
│ (SPA)                           │      │ fresh sid/fid/tbid/rid headers │
└─────────────────────────────────┘      └──────────────┬─────────────────┘
                                                         │
                                             ┌───────────▼─────────────┐
                                             │  httpx JSON calls       │
                                             │  prd.wiciam.../cvmfe/api│
                                             └───────────┬─────────────┘
                                                         │
                                    ┌────────────────────▼────────────────────┐
                                    │ DEPOSIT × N (employee + employer)        │
                                    │ BUY × N (fund unit purchases, per date) │
                                    └────────────────────┬────────────────────┘
                                                         │
                                        ┌────────────────▼────────────────┐
                                        │ Wealthfolio account              │
                                        │ type = WORKPLACE_PENSION         │
                                        │ currency = GBP                   │
                                        └──────────────────────────────────┘
```

## One-time seed (Viktor)

```bash
# on your laptop (macOS / Linux with a desktop):
cd broker-sync
poetry install
poetry run playwright install chromium
poetry run broker-sync fidelity-seed --out /tmp/fidelity_storage_state.json
# chromium opens — log in to PlanViewer, tick "Remember device", press Enter

# stage to Vault
vault kv patch secret/broker-sync \
  fidelity_storage_state=@/tmp/fidelity_storage_state.json \
  fidelity_plan_id=<your-plan-id>

rm /tmp/fidelity_storage_state.json   # don't leave credentials lying around
```

Re-seed when the monthly CronJob fails with `FidelitySessionError` (expect
every 30-90 days, depending on how long Fidelity honours the remember-device
cookie).

## One-time backfill

```bash
kubectl -n broker-sync create job fidelity-backfill \
  --from=cronjob/broker-sync-fidelity
kubectl -n broker-sync logs -f job/fidelity-backfill
# expect: fidelity-ingest: fetched=N new=N imported=N failed=0
```

## Monthly cron

- Schedule: `0 3 5 * *` (3am UTC on the 5th of each month — after mid-month payroll settles in Viktor's scheme)
- CronJob: `broker-sync-fidelity` in namespace `broker-sync`
- Resource: small, ≤512 MiB memory (Chromium for ~2 min, then idle)
- Alert: `BrokerSyncFidelityFailed` fires on 2 consecutive failures

## Runbook — `BrokerSyncFidelityFailed`

1. Check pod logs: `kubectl -n broker-sync logs job/broker-sync-fidelity-<timestamp>`.
2. If the error is `FidelitySessionError`: session expired, re-run the seed on
   Viktor's laptop (see above).
3. If the error is a 404 / 5xx from `prd.wiciam.fidelity.co.uk`: likely an API
   path change. Check DevTools for the new endpoint, update the provider, ship
   a new image.
4. If Playwright can't launch Chromium: check that the image still has Chromium
   installed (`playwright install chromium` at build time).

## Data model notes

- **Salary sacrifice scheme**: all employee + employer contributions are
  pre-tax from gross salary. No HMRC basic-rate relief line.
- Emits two `DEPOSIT` per month (employee, employer) with `comment` carrying
  the source tag `fidelity:<doc-id>:<source>` for audit.
- Emits one `BUY` per fund unit purchase, `symbol` = Fidelity fund code / ISIN.
  Units × unit price should reconcile to the cash deposited ±pennies.

## Not yet implemented

- Endpoint paths: waiting on Viktor's DevTools POST cURL for transactions +
  holdings views. Until pasted, `fidelity-ingest` raises
  `FidelityProviderConfigError` to fail loudly.
- Infra: CronJob + Vault secret wiring + Prometheus alert in
  `infra/stacks/broker-sync/main.tf` — pending first successful manual run.