Model/backend/condition/domain/mapping/lbwf/lbwf_mapper.py
2026-02-04 12:16:47 +00:00

128 lines
4.5 KiB
Python

from typing import Any, Dict, Optional, Tuple
from datetime import date
from backend.condition.domain.aspect_condition import AspectCondition
from backend.condition.domain.element import Element
from backend.condition.domain.element_type import ElementType
from backend.condition.domain.mapping.element_mapping import ElementMapping
from backend.condition.domain.mapping.lbwf.lbwf_element_map import LBWF_ELEMENT_MAP
from backend.condition.domain.mapping.mapper import Mapper
from backend.condition.domain.property_condition_survey import PropertyConditionSurvey
from backend.condition.parsing.records.lbwf.lbwf_asset_condition import (
LbwfAssetCondition,
)
from backend.condition.parsing.records.lbwf.lbwf_house import LbwfHouse
from utils.logger import setup_logger
logger = setup_logger()
class LbwfMapper(Mapper):
def map_asset_conditions_for_property(
self, client_property_data: Any, survey_year: Optional[int] = None
) -> PropertyConditionSurvey:
assert isinstance(
client_property_data, LbwfHouse
) # TODO: think of a better way to do this
elements_by_key: dict[tuple[ElementType, int], Element] = {}
for raw_asset in client_property_data.assets:
if raw_asset.element_code in ["DECNTHMINC", "EICINSFREQ"]:
# skip metadata rows
continue
element_mapping = LbwfMapper._safe_map_element(raw_asset)
if not element_mapping:
continue
aspect_condition = LbwfMapper._build_aspect_condition(
raw_asset, element_mapping, survey_year
)
element_key = (
element_mapping.elementType,
element_mapping.element_instance or 1,
)
LbwfMapper._attach_aspect_condition_to_element(
elements_by_key, element_key, aspect_condition
)
return PropertyConditionSurvey(
uprn=client_property_data.uprn,
elements=list(elements_by_key.values()),
date=date(2000, 1, 1), # Temp - not sure how to get this
source="LBWF", # TODO: Make this the system, not the client
)
@staticmethod
def _safe_map_element(raw_asset: LbwfAssetCondition) -> Optional[ElementMapping]:
try:
return LbwfMapper._map_element(raw_asset.element_code)
except KeyError:
logger.warning(
logger.warning(
f"Unrecognised LBWF Asset Element: "
f"{raw_asset.element_code} ({raw_asset.element_code_description})). "
"Skipping record"
)
)
return None
@staticmethod
def _map_element(lbwf_element_code: str) -> ElementMapping:
return LBWF_ELEMENT_MAP[lbwf_element_code]
@staticmethod
def _build_aspect_condition(
raw_asset, element_mapping: ElementMapping, survey_year: int
) -> AspectCondition:
return AspectCondition(
aspect_type=element_mapping.aspect_type,
aspect_instance=element_mapping.aspect_instance or 1,
value=raw_asset.attribute_code_description,
quantity=raw_asset.quantity,
install_date=raw_asset.install_date,
renewal_year=LbwfMapper._calculate_renewal_year(raw_asset, survey_year),
comments=raw_asset.element_comments,
)
@staticmethod
def _attach_aspect_condition_to_element(
elements_by_key: Dict[Tuple[ElementType, int], Element],
element_key: Tuple[ElementType, int],
aspect_condition: AspectCondition,
) -> None:
element = elements_by_key.get(element_key)
if element is None:
element = Element(
element_type=element_key[0],
element_instance=element_key[1],
aspect_conditions=[],
)
elements_by_key[element_key] = element
element.aspect_conditions.append(aspect_condition)
@staticmethod
def _calculate_renewal_year(
lbwf_asset: LbwfAssetCondition, survey_year: Optional[int]
) -> Optional[int]:
remaining_life_years: Optional[int] = lbwf_asset.remaining_life
if not remaining_life_years:
return None
if not survey_year:
return None
try:
return survey_year + remaining_life_years
except:
logger.debug(
f"Unable to map LBWF Asset remaining life {remaining_life_years} to renewal year, returning None"
)
return None