Migrated from monorepo during Forgejo registry consolidation 2026-05-07
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Viktor Barzin 4da58fe56e
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fire-planner: lazy-refresh /networth from wf_sync (default TTL 1d)
The account_snapshot cache fed /networth, /networth/history, and
/scenarios/{id}/progress. No CronJob populated it, so the cache had
drifted ~18 days behind the wealthfolio_sync mirror (last refresh
2026-05-09 via manual kubectl exec; Grafana reads wf_sync directly
and stayed fresh).

Switch to lazy refresh on read: each request to those endpoints now
checks MAX(account_snapshot.snapshot_date) — if it's older than
NETWORTH_CACHE_TTL_DAYS (default 1), pull fresh rows from wf_sync via
read_account_snapshots_from_pg and upsert. Idempotent under
concurrency (existing ON CONFLICT DO UPDATE).

Plumbing:
- Add get_wf_sync_session dependency that yields None when the wf_sync
  factory isn't wired (keeps existing tests' behaviour: no refresh
  attempted, they continue to seed account_snapshot directly).
- Wire wf_sync engine + session_factory in app.lifespan when
  WEALTHFOLIO_SYNC_DB_CONNECTION_STRING is set.
- Centralise the staleness check in refresh_account_snapshots_if_stale.

Tests:
- 271 existing tests still green.
- Three new tests in test_api_networth_refresh.py covering: empty cache
  triggers refresh, stale cache triggers refresh, fresh cache skips
  refresh (asserts the wf_sync value is NOT served).
2026-05-27 18:21:12 +00:00
alembic col: simulator auto-adjusts spending to local prices via Numbeo+Expatistan 2026-05-22 14:14:57 +00:00
fire_planner fire-planner: lazy-refresh /networth from wf_sync (default TTL 1d) 2026-05-27 18:21:12 +00:00
frontend fire-planner: What-If gains the chart-first scenario editor 2026-05-12 19:35:28 +00:00
tests fire-planner: lazy-refresh /networth from wf_sync (default TTL 1d) 2026-05-27 18:21:12 +00:00
.dockerignore deploy: combined Dockerfile — FastAPI serves the SPA in prod 2026-05-09 22:25:52 +00:00
.gitignore Initial extraction from monorepo 2026-05-07 17:06:19 +00:00
.woodpecker.yml Phase 4: drop registry.viktorbarzin.me, Forgejo only 2026-05-07 23:17:46 +00:00
alembic.ini Initial extraction from monorepo 2026-05-07 17:06:19 +00:00
Dockerfile fire-planner: copy frontend/.npmrc before npm ci in Dockerfile 2026-05-10 16:54:25 +00:00
PLAYBOOK_VIKTOR.md Initial extraction from monorepo 2026-05-07 17:06:19 +00:00
poetry.lock Initial extraction from monorepo 2026-05-07 17:06:19 +00:00
pyproject.toml api: expand FastAPI surface for scenarios, networth, life-events, goals, simulate 2026-05-09 21:48:36 +00:00
README.md Initial extraction from monorepo 2026-05-07 17:06:19 +00:00

fire-planner

Risk-adjusted, tax-minimised FIRE retirement planner. Consumes today's portfolio, savings rate, and RSU vest schedule from sibling services (wealthfolio, payslip-ingest, hmrc-sync) and returns the after-tax probability of success for each combination of jurisdiction, withdrawal strategy, and "year you break UK tax residency".

Layout

  • fire_planner/ — package
    • tax/ — per-jurisdiction tax engines (UK, nomad, Malaysia, Thailand, Cyprus, Bulgaria)
    • returns/ — Shiller 1871+ data + block bootstrap sampler
    • strategies/ — Trinity 4% SWR, Guyton-Klinger guardrails, VPW
    • ingest/ — pulls from wealthfolio / payslip-ingest / hmrc-sync
    • simulator.py — vectorised NumPy MC engine
    • scenarios.py — Cartesian product over (jurisdiction × strategy × leave-UK-year × glide)
    • app.py — FastAPI on-demand /recompute
    • __main__.pyclick CLI: ingest, simulate, recompute-all, migrate

Common commands

poetry install
pytest -v
mypy .
ruff check .
yapf --recursive .

# Run migrations against the local DB:
DB_CONNECTION_STRING=postgresql+asyncpg://... alembic upgrade head

# CLI
DB_CONNECTION_STRING=... python -m fire_planner ingest
DB_CONNECTION_STRING=... python -m fire_planner simulate --scenario=cyprus-vpw-leave-y3
DB_CONNECTION_STRING=... python -m fire_planner recompute-all

Schema

Six tables in fire_planner schema on pg-cluster-rw:

  • account_snapshot — daily NW per account (Wealthfolio)
  • scenario — Cartesian-product scenario definition
  • mc_run — execution metadata + summary stats per (scenario, run_at)
  • mc_path — sparse storage (top decile, bottom decile, median)
  • projection_yearly — deterministic point projection per scenario
  • scenario_summary — denormalised fast-read for Grafana