Model/packages
Khalim Conn-Kowlessar 29ac35ccbe refactor: lift-and-shift packages/domain/src/domain/sap → domain/sap10_calculator
Migration of the SAP 10.2 calculator package from the uv-workspace
src-layout (`packages/domain/src/domain/sap`) to the root-level layout
(`domain/sap10_calculator`), matching the pattern already used by
`domain.addresses` / `domain.tasks` / `domain.postcode`.

Changes:

- `git mv packages/domain/src/domain/sap → domain/sap10_calculator`
  (92 files; git auto-detected all as renames so blame/history is
  preserved).
- Subpackage rename: `domain.sap` → `domain.sap10_calculator`. 48
  Python files rewritten (`from domain.sap.X` → `from domain.sap10_
  calculator.X`); zero remaining `domain.sap` refs after the sed pass.
- Path-string updates: 3 .py files (test fixtures + xlsx loader) +
  6 markdown docs (CONTEXT.md, 2 ADRs, 3 sap-spec docs, sap10_
  calculator/README.md) had hard-coded `packages/domain/src/domain/
  sap/...` paths rewritten to `domain/sap10_calculator/...`.
- `Path(__file__).parents[N]` rebasing: the old tree was 3 levels
  deeper than the new one (`packages/domain/src/`), so 4× `parents[7]`
  became `parents[4]` and 1× `parents[6]` became `parents[3]` across
  `tables/pcdb/{__init__.py, postcode_weather.py, etl.py}`,
  `worksheet/tests/_xlsx_loader.py`, and `tests/test_pcdb_etl.py`.
- PEP 420 namespace package: deleted both `domain/__init__.py`
  (root + workspace, both load-bearing only as empty/docstring) so
  Python combines `domain.sap10_calculator` (root) and `domain.ml`
  (workspace) into one namespace package. Confirmed via
  `domain.__path__ == ['/workspaces/model/domain',
  '/workspaces/model/packages/domain/src/domain']`. Without this,
  the root `domain/__init__.py` shadowed the workspace one and
  `domain.ml` was unreachable.

Verified:

- Full sweep (`backend/documents_parser/tests/test_summary_pdf_
  mapper_chain.py + domain/sap10_calculator/worksheet/tests/test_
  e2e_elmhurst_sap_score.py + domain/sap10_calculator/rdsap/tests/
  test_golden_fixtures.py`): 99 passed / 19 failed — exact same
  counts as pre-refactor. All 19 failures pre-existing (9 hand-built
  001479 + 6 cohort diff + 4 cohort chain non-spec).
- Wider sweep (all sap10_calculator + domain.ml): 1654 passed /
  20 failed (the +1 vs the focused sweep is the pre-existing
  `test_roof_insulated_assumed_with_ni_thickness_uses_50mm_per_
  section_5_11_4` which was already failing on the previous baseline).
- Pyright net-zero on the three load-bearing baselines:
  `heat_transmission.py` 13, `cert_to_inputs.py` 35, `mapper.py` 33.

Lift-and-shift only — no semantic renames (`Sap10Calculator` stays
`Sap10Calculator`), no testpaths edits in pytest.ini (sap tests
continue to be invoked by explicit pytest paths).

Note: `domain.ml` still lives at `packages/domain/src/domain/ml/`.
Migrating it would close out the dual-`domain/` layout but is
out of scope for this commit.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-26 12:22:37 +00:00
..
domain refactor: lift-and-shift packages/domain/src/domain/sap → domain/sap10_calculator 2026-05-26 12:22:37 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

Shared packages

Workspace packages consumed by services/*. Each package is its own Python distribution with its own pyproject.toml; services import via the workspace dependency mechanism ({ workspace = true }).

Package Purpose
domain/ Shared domain types — Property, BaselinePerformance, Plan, Scenario, EpcPropertyData, etc. No persistence, no IO, no business logic.
repos/ Persistence layer — one repo per aggregate. Owns the SQL. Depends on domain.
fetchers/ External API clients (gov EPC, Ofgem, Google Solar, etc.). Depend on domain for response shapes.
utils/ Cross-cutting infra — logging, S3, CloudWatch URL builders, SQS task helpers.

Adding a new shared package

Only when a real second consumer materialises. Don't pre-shatter (repos-epc, repos-property, ...) — split when a deployment needs to drop a dep, not before.

See ../ara_backend_design.md §11 for the broader monorepo layout and ../CONTEXT.md for the domain glossary that names the types living in domain/.