cover.py

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## @file
## @brief ESPHome cover platform schema and code generation.
## @ingroup hioc_codegen
##
## Bridges the YAML ``cover:`` platform declaration to the runtime IOHomeCover entity.
## Shared device-binding logic lives in platform_common.py; cover-specific extras — the
## ``invert_position`` option and the favorite/ventilation companion buttons — stay here.
 
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import button, cover
from esphome.const import (
    CONF_DISABLED_BY_DEFAULT,
    CONF_ID,
    CONF_NAME,
)
from esphome.core import ID
 
from . import home_io_control_ns
from .platform_common import (
    companion_id_base,
    create_companion_sensors,
    inject_companion_sensor_ids,
    platform_schema_extension,
    wire_device_binding,
    CONF_DEVICE_ID,
    CONF_DEVICE_TYPE,
    CONF_HOME_IO_CONTROL_ID,
)
 
DEPENDENCIES = ["home_io_control"]
 
CONF_INVERT_POSITION = "invert_position"
CONF_OPTIMISTIC_STATE = "optimistic_state"
 
# Internal config keys for the cover-only companion button IDs (injected by post-validator).
CONF_FAVORITE_BUTTON_ID = "_favorite_button_id"
CONF_VENT_BUTTON_ID = "_vent_button_id"
 
IOHomeCover = home_io_control_ns.class_("IOHomeCover", cover.Cover, cg.Component)
IOHomeCoverFavoriteButton = home_io_control_ns.class_(
    "IOHomeCoverFavoriteButton", button.Button, cg.Component
)
IOHomeCoverVentButton = home_io_control_ns.class_(
    "IOHomeCoverVentButton", button.Button, cg.Component
)
 
# Device types that support 0-100% position control (maps to DeviceCapabilityClass::COVER in C++).
# Used to decide whether a favorite-position button companion should be generated.
POSITION_CONTROL_DEVICE_TYPES = {
    0x01,  # venetian_blind
    0x02,  # roller_shutter
    0x03,  # awning
    0x04,  # window_opener
    0x05,  # garage_opener
    0x07,  # gate_opener
    0x08,  # rolling_door_opener
    0x0A,  # blind
    0x0B,  # screen
    0x0D,  # dual_shutter
    0x10,  # horizontal_awning
    0x11,  # external_venetian_blind
    0x12,  # louvre_blind
    0x13,  # curtain_track
    0x18,  # swinging_shutter
}
 
 
def device_supports_position_control(value):
    """Check if the given device type value supports 0-100% position control."""
    return value in POSITION_CONTROL_DEVICE_TYPES
 
 
# Device types that support the ventilation position command.
# These are window-type actuators that can move to a predefined vent opening.
VENT_DEVICE_TYPES = {
    0x04,  # window_opener
    0x14,  # ventilation_point
}
 
 
def device_supports_vent(value):
    """Check if the given device type value supports the ventilation command."""
    return value in VENT_DEVICE_TYPES
 
 
def favorite_button_name(config):
    """Derive the favorite-position button name from the parent cover name."""
    base_name = config.get(CONF_NAME, "")
    if base_name:
        return f"{base_name} Favorite Position"
    return "Favorite Position"
 
 
def vent_button_name(config):
    """Derive the ventilation-position button name from the parent cover name."""
    base_name = config.get(CONF_NAME, "")
    if base_name:
        return f"{base_name} Ventilation Position"
    return "Ventilation Position"
 
 
def _inject_companion_ids(config):
    """Declare cover companion entity IDs during schema validation for StaticVector sizing.
 
    The favorite and ventilation buttons are cover-only and gated on device capability, so
    their injection stays here. The always-present companion sensor IDs are delegated to the
    shared helper. See platform_common.companion_id_base() for the StaticVector rationale.
    """
    base = companion_id_base(config, CONF_ID)
 
    # Favorite-position button — only for position-capable device types.
    if CONF_DEVICE_TYPE in config and device_supports_position_control(
        config[CONF_DEVICE_TYPE]
    ):
        config[CONF_FAVORITE_BUTTON_ID] = ID(
            f"{base}_favorite_button",
            is_declaration=True,
            type=IOHomeCoverFavoriteButton,
        )
 
    # Ventilation-position button — only for window-type device types.
    if CONF_DEVICE_TYPE in config and device_supports_vent(config[CONF_DEVICE_TYPE]):
        config[CONF_VENT_BUTTON_ID] = ID(
            f"{base}_vent_button",
            is_declaration=True,
            type=IOHomeCoverVentButton,
        )
 
    # Companion diagnostic sensors — always generated (shared with other platforms).
    return inject_companion_sensor_ids(config, CONF_ID)
 
 
CONFIG_SCHEMA = cv.All(
    cover.cover_schema(IOHomeCover)
    .extend(platform_schema_extension())
    .extend({cv.Optional(CONF_INVERT_POSITION): cv.boolean})
    .extend({cv.Optional(CONF_OPTIMISTIC_STATE, default=True): cv.boolean})
    .extend(cv.COMPONENT_SCHEMA),
    _inject_companion_ids,
)
 
 
async def to_code(config):
    var = await cover.new_cover(config)
    await cg.register_component(var, config)
 
    parent = await cg.get_variable(config[CONF_HOME_IO_CONTROL_ID])
    await wire_device_binding(var, parent, config)
 
    if CONF_INVERT_POSITION in config:
        cg.add(var.set_invert_position(config[CONF_INVERT_POSITION]))
 
    cg.add(var.set_optimistic_state(config[CONF_OPTIMISTIC_STATE]))
 
    if CONF_FAVORITE_BUTTON_ID in config:
        favorite_config = {
            CONF_ID: config[CONF_FAVORITE_BUTTON_ID],
            CONF_NAME: favorite_button_name(config),
            CONF_DISABLED_BY_DEFAULT: False,
        }
        favorite = await button.new_button(favorite_config)
        await cg.register_component(favorite, favorite_config)
        cg.add(favorite.set_parent(parent))
        cg.add(favorite.set_device_id(config[CONF_DEVICE_ID]))
 
    if CONF_VENT_BUTTON_ID in config:
        vent_config = {
            CONF_ID: config[CONF_VENT_BUTTON_ID],
            CONF_NAME: vent_button_name(config),
            CONF_DISABLED_BY_DEFAULT: False,
        }
        vent = await button.new_button(vent_config)
        await cg.register_component(vent, vent_config)
        cg.add(vent.set_parent(parent))
        cg.add(vent.set_device_id(config[CONF_DEVICE_ID]))
 
    await create_companion_sensors(config, parent)