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from esphome import automation
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import select
from esphome.const import (
CONF_ID,
CONF_INITIAL_OPTION,
CONF_LAMBDA,
CONF_OPTIONS,
CONF_OPTIMISTIC,
CONF_RESTORE_VALUE,
)
from .. import template_ns
TemplateSelect = template_ns.class_(
"TemplateSelect", select.Select, cg.PollingComponent
)
CONF_SET_ACTION = "set_action"
def validate(config):
if CONF_LAMBDA in config:
if config[CONF_OPTIMISTIC]:
raise cv.Invalid("optimistic cannot be used with lambda")
if CONF_INITIAL_OPTION in config:
raise cv.Invalid("initial_value cannot be used with lambda")
if CONF_RESTORE_VALUE in config:
raise cv.Invalid("restore_value cannot be used with lambda")
elif CONF_INITIAL_OPTION in config:
if config[CONF_INITIAL_OPTION] not in config[CONF_OPTIONS]:
raise cv.Invalid(
f"initial_option '{config[CONF_INITIAL_OPTION]}' is not a valid option [{', '.join(config[CONF_OPTIONS])}]"
)
else:
config[CONF_INITIAL_OPTION] = config[CONF_OPTIONS][0]
if not config[CONF_OPTIMISTIC] and CONF_SET_ACTION not in config:
raise cv.Invalid(
"Either optimistic mode must be enabled, or set_action must be set, to handle the option being set."
)
return config
CONFIG_SCHEMA = cv.All(
select.SELECT_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(TemplateSelect),
cv.Required(CONF_OPTIONS): cv.All(
cv.ensure_list(cv.string_strict), cv.Length(min=1)
),
cv.Optional(CONF_LAMBDA): cv.returning_lambda,
cv.Optional(CONF_OPTIMISTIC, default=False): cv.boolean,
cv.Optional(CONF_SET_ACTION): automation.validate_automation(single=True),
cv.Optional(CONF_INITIAL_OPTION): cv.string_strict,
cv.Optional(CONF_RESTORE_VALUE): cv.boolean,
}
).extend(cv.polling_component_schema("60s")),
validate,
)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
await select.register_select(var, config, options=config[CONF_OPTIONS])
if CONF_LAMBDA in config:
template_ = await cg.process_lambda(
config[CONF_LAMBDA], [], return_type=cg.optional.template(cg.std_string)
)
cg.add(var.set_template(template_))
else:
cg.add(var.set_optimistic(config[CONF_OPTIMISTIC]))
cg.add(var.set_initial_option(config[CONF_INITIAL_OPTION]))
if CONF_RESTORE_VALUE in config:
cg.add(var.set_restore_value(config[CONF_RESTORE_VALUE]))
if CONF_SET_ACTION in config:
await automation.build_automation(
var.get_set_trigger(), [(cg.std_string, "x")], config[CONF_SET_ACTION]
)
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