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Khalim Conn-Kowlessar 15d6b78149 pcdb followup: e2e mapper-chain regression test for main_heating_index_number 
Pins the API JSON → EpcPropertyDataMapper → CalculatorInputs chain for the 4 corpus PCDB-listed golden certs. Asserts (a) `main_heating_index_number` survives the mapper hop, (b) `cert_to_inputs` resolves Table 105 record by that ID and applies the winter efficiency. Catches future regressions where a mapper change might drop the PCDB pointer silently.

Confirms the API → domain → calculator chain works end-to-end without any new domain object field — `MainHeatingDetail.main_heating_index_number` has existed since schema 17_1 and all mapper paths from 17_1+ pass it through verbatim.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-21 13:45:33 +00:00
..
domain pcdb followup: e2e mapper-chain regression test for main_heating_index_number 2026-05-21 13:45:33 +00:00
fetchers added potential file scaffolding: 2026-05-15 10:56:53 +00:00
repos added potential file scaffolding: 2026-05-15 10:56:53 +00:00
utils added potential file scaffolding: 2026-05-15 10:56:53 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

README.md

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/.