from esphome.components import climate
import esphome.config_validation as cv
import esphome.codegen as cg
from esphome.const import CONF_ID, CONF_SWITCH_DATAPOINT
from .. import tuya_ns, CONF_TUYA_ID, Tuya

DEPENDENCIES = ["tuya"]
CODEOWNERS = ["@jesserockz"]

CONF_TARGET_TEMPERATURE_DATAPOINT = "target_temperature_datapoint"
CONF_CURRENT_TEMPERATURE_DATAPOINT = "current_temperature_datapoint"
CONF_TEMPERATURE_MULTIPLIER = "temperature_multiplier"
CONF_CURRENT_TEMPERATURE_MULTIPLIER = "current_temperature_multiplier"
CONF_TARGET_TEMPERATURE_MULTIPLIER = "target_temperature_multiplier"

TuyaClimate = tuya_ns.class_("TuyaClimate", climate.Climate, cg.Component)


def validate_temperature_multipliers(value):
    if CONF_TEMPERATURE_MULTIPLIER in value:
        if (
            CONF_CURRENT_TEMPERATURE_MULTIPLIER in value
            or CONF_TARGET_TEMPERATURE_MULTIPLIER in value
        ):
            raise cv.Invalid(
                (
                    f"Cannot have {CONF_TEMPERATURE_MULTIPLIER} at the same time as "
                    f"{CONF_CURRENT_TEMPERATURE_MULTIPLIER} and "
                    f"{CONF_TARGET_TEMPERATURE_MULTIPLIER}"
                )
            )
    if (
        CONF_CURRENT_TEMPERATURE_MULTIPLIER in value
        and CONF_TARGET_TEMPERATURE_MULTIPLIER not in value
    ):
        raise cv.Invalid(
            (
                f"{CONF_TARGET_TEMPERATURE_MULTIPLIER} required if using "
                f"{CONF_CURRENT_TEMPERATURE_MULTIPLIER}"
            )
        )
    if (
        CONF_TARGET_TEMPERATURE_MULTIPLIER in value
        and CONF_CURRENT_TEMPERATURE_MULTIPLIER not in value
    ):
        raise cv.Invalid(
            (
                f"{CONF_CURRENT_TEMPERATURE_MULTIPLIER} required if using "
                f"{CONF_TARGET_TEMPERATURE_MULTIPLIER}"
            )
        )
    keys = (
        CONF_TEMPERATURE_MULTIPLIER,
        CONF_CURRENT_TEMPERATURE_MULTIPLIER,
        CONF_TARGET_TEMPERATURE_MULTIPLIER,
    )
    if all(multiplier not in value for multiplier in keys):
        value[CONF_TEMPERATURE_MULTIPLIER] = 1.0
    return value


CONFIG_SCHEMA = cv.All(
    climate.CLIMATE_SCHEMA.extend(
        {
            cv.GenerateID(): cv.declare_id(TuyaClimate),
            cv.GenerateID(CONF_TUYA_ID): cv.use_id(Tuya),
            cv.Optional(CONF_SWITCH_DATAPOINT): cv.uint8_t,
            cv.Optional(CONF_TARGET_TEMPERATURE_DATAPOINT): cv.uint8_t,
            cv.Optional(CONF_CURRENT_TEMPERATURE_DATAPOINT): cv.uint8_t,
            cv.Optional(CONF_TEMPERATURE_MULTIPLIER): cv.positive_float,
            cv.Optional(CONF_CURRENT_TEMPERATURE_MULTIPLIER): cv.positive_float,
            cv.Optional(CONF_TARGET_TEMPERATURE_MULTIPLIER): cv.positive_float,
        }
    ).extend(cv.COMPONENT_SCHEMA),
    cv.has_at_least_one_key(CONF_TARGET_TEMPERATURE_DATAPOINT, CONF_SWITCH_DATAPOINT),
    validate_temperature_multipliers,
)


def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    yield cg.register_component(var, config)
    yield climate.register_climate(var, config)

    paren = yield cg.get_variable(config[CONF_TUYA_ID])
    cg.add(var.set_tuya_parent(paren))

    if CONF_SWITCH_DATAPOINT in config:
        cg.add(var.set_switch_id(config[CONF_SWITCH_DATAPOINT]))
    if CONF_TARGET_TEMPERATURE_DATAPOINT in config:
        cg.add(var.set_target_temperature_id(config[CONF_TARGET_TEMPERATURE_DATAPOINT]))
    if CONF_CURRENT_TEMPERATURE_DATAPOINT in config:
        cg.add(
            var.set_current_temperature_id(config[CONF_CURRENT_TEMPERATURE_DATAPOINT])
        )
    if CONF_TEMPERATURE_MULTIPLIER in config:
        cg.add(
            var.set_target_temperature_multiplier(config[CONF_TEMPERATURE_MULTIPLIER])
        )
        cg.add(
            var.set_current_temperature_multiplier(config[CONF_TEMPERATURE_MULTIPLIER])
        )
    else:
        cg.add(
            var.set_current_temperature_multiplier(
                config[CONF_CURRENT_TEMPERATURE_MULTIPLIER]
            )
        )
        cg.add(
            var.set_target_temperature_multiplier(
                config[CONF_TARGET_TEMPERATURE_MULTIPLIER]
            )
        )