mirror of https://github.com/home-assistant/core
64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
"""Helpers for template integration."""
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import logging
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from homeassistant.components import blueprint
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from homeassistant.const import SERVICE_RELOAD
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers.entity_platform import async_get_platforms
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from homeassistant.helpers.singleton import singleton
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from .const import DOMAIN, TEMPLATE_BLUEPRINT_SCHEMA
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from .template_entity import TemplateEntity
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DATA_BLUEPRINTS = "template_blueprints"
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LOGGER = logging.getLogger(__name__)
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@callback
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def templates_with_blueprint(hass: HomeAssistant, blueprint_path: str) -> list[str]:
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"""Return all template entity ids that reference the blueprint."""
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return [
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entity_id
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for platform in async_get_platforms(hass, DOMAIN)
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for entity_id, template_entity in platform.entities.items()
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if isinstance(template_entity, TemplateEntity)
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and template_entity.referenced_blueprint == blueprint_path
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]
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@callback
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def blueprint_in_template(hass: HomeAssistant, entity_id: str) -> str | None:
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"""Return the blueprint the template entity is based on or None."""
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for platform in async_get_platforms(hass, DOMAIN):
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if isinstance(
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(template_entity := platform.entities.get(entity_id)), TemplateEntity
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):
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return template_entity.referenced_blueprint
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return None
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def _blueprint_in_use(hass: HomeAssistant, blueprint_path: str) -> bool:
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"""Return True if any template references the blueprint."""
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return len(templates_with_blueprint(hass, blueprint_path)) > 0
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async def _reload_blueprint_templates(hass: HomeAssistant, blueprint_path: str) -> None:
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"""Reload all templates that rely on a specific blueprint."""
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await hass.services.async_call(DOMAIN, SERVICE_RELOAD)
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@singleton(DATA_BLUEPRINTS)
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@callback
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def async_get_blueprints(hass: HomeAssistant) -> blueprint.DomainBlueprints:
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"""Get template blueprints."""
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return blueprint.DomainBlueprints(
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hass,
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DOMAIN,
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LOGGER,
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_blueprint_in_use,
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_reload_blueprint_templates,
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TEMPLATE_BLUEPRINT_SCHEMA,
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)
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