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3c87be8e1e
recommend_loft_insulation(epc, products) detects an uninsulated main loft
(SapBuildingPart.roof_insulation_thickness == 0) and emits a
Recommendation("Roof") with one loft_insulation Option carrying the overlay
(roof_insulation_thickness = 270 mm, the recommended top-up) and a priced
Cost (roof area x the Product's fully-loaded unit cost + contingency).
- building_geometry.roof_area(epc, identifier): the part's greatest
per-storey floor area (RdSAP 10 §3.8). Pinned 14.85 m^2 on 000490 MAIN.
- BuildingPartOverlay gains roof_insulation_thickness; the generic Overlay
Applicator writes it with NO change (validated by the tracer) — the
deep-module field-fold paying off.
- loft_insulation contingency (0.10) added.
Progress on #1158 (generator + geometry); end-to-end + Elmhurst pin pending
the orchestrator (#1157) and the parser fix. Four behaviour tests
(geometry pin; detect / none / cost). pyright strict clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
"""The Simulation Overlay (`EpcSimulation`) — the change a single Measure
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Option makes to a Property's EpcPropertyData.
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An all-optional partial mirror of EpcPropertyData / SapBuildingPart, covering
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the retrofit-relevant surface only (wall fields first). It is *not* an
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EpcPropertyData — composition, not inheritance — and carries no scores.
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Building parts are targeted by `BuildingPartIdentifier` so a measure addresses
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the exact `SapBuildingPart` (the main wall vs an extension). See CONTEXT.md.
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"""
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from dataclasses import dataclass, field
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from typing import Mapping, Optional
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from datatypes.epc.domain.epc_property_data import BuildingPartIdentifier
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@dataclass(frozen=True)
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class BuildingPartOverlay:
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"""All-optional partial of `SapBuildingPart` (wall surface first).
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A `None` field means "leave the baseline value unchanged".
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"""
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wall_insulation_type: Optional[int] = None
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roof_insulation_thickness: Optional[int] = None
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def _no_building_parts() -> dict[BuildingPartIdentifier, BuildingPartOverlay]:
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return {}
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@dataclass(frozen=True)
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class EpcSimulation:
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"""A Simulation Overlay: the per-building-part changes a Measure Option
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makes, keyed by `BuildingPartIdentifier`."""
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building_parts: Mapping[BuildingPartIdentifier, BuildingPartOverlay] = field(
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default_factory=_no_building_parts
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)
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