118 lines
3.5 KiB
Python
118 lines
3.5 KiB
Python
"""Handle KNX project data."""
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from __future__ import annotations
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from dataclasses import dataclass
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import logging
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from typing import Final
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from xknx.dpt import DPTBase
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from xknxproject import XKNXProj
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from xknxproject.models import (
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Device,
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GroupAddress as GroupAddressModel,
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KNXProject as KNXProjectModel,
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ProjectInfo,
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)
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from homeassistant.components.file_upload import process_uploaded_file
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from homeassistant.config_entries import ConfigEntry
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from homeassistant.core import HomeAssistant
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from homeassistant.helpers.storage import Store
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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STORAGE_VERSION: Final = 1
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STORAGE_KEY: Final = f"{DOMAIN}/knx_project.json"
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@dataclass
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class GroupAddressInfo:
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"""Group address info for runtime usage."""
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address: str
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name: str
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description: str
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dpt_main: int | None
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dpt_sub: int | None
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transcoder: type[DPTBase] | None
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def _create_group_address_info(ga_model: GroupAddressModel) -> GroupAddressInfo:
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"""Convert GroupAddress dict value into GroupAddressInfo instance."""
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dpt = ga_model["dpt"]
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transcoder = DPTBase.transcoder_by_dpt(dpt["main"], dpt.get("sub")) if dpt else None
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return GroupAddressInfo(
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address=ga_model["address"],
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name=ga_model["name"],
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description=ga_model["description"],
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transcoder=transcoder,
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dpt_main=dpt["main"] if dpt else None,
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dpt_sub=dpt["sub"] if dpt else None,
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)
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class KNXProject:
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"""Manage KNX project data."""
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loaded: bool
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devices: dict[str, Device]
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group_addresses: dict[str, GroupAddressInfo]
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info: ProjectInfo | None
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def __init__(
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self,
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hass: HomeAssistant,
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entry: ConfigEntry,
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) -> None:
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"""Initialize project data."""
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self.hass = hass
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self._store = Store[KNXProjectModel](hass, STORAGE_VERSION, STORAGE_KEY)
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self.initial_state()
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def initial_state(self) -> None:
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"""Set initial state for project data."""
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self.loaded = False
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self.devices = {}
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self.group_addresses = {}
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self.info = None
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async def load_project(self, data: KNXProjectModel | None = None) -> None:
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"""Load project data from storage."""
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if project := data or await self._store.async_load():
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self.devices = project["devices"]
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self.info = project["info"]
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for ga_model in project["group_addresses"].values():
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ga_info = _create_group_address_info(ga_model)
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self.group_addresses[ga_info.address] = ga_info
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_LOGGER.debug(
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"Loaded KNX project data with %s group addresses from storage",
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len(self.group_addresses),
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)
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self.loaded = True
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async def process_project_file(self, file_id: str, password: str) -> None:
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"""Process an uploaded project file."""
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def _parse_project() -> KNXProjectModel:
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with process_uploaded_file(self.hass, file_id) as file_path:
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xknxproj = XKNXProj(
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file_path,
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password=password,
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language=self.hass.config.language,
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)
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return xknxproj.parse()
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project = await self.hass.async_add_executor_job(_parse_project)
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await self._store.async_save(project)
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await self.load_project(data=project)
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async def remove_project_file(self) -> None:
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"""Remove project file from storage."""
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await self._store.async_remove()
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self.initial_state()
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