import esphome.codegen as cg
from esphome.components import i2c, sensor
import esphome.config_validation as cv
from esphome.const import (
    CONF_ID,
    CONF_INTERNAL_TEMPERATURE,
    CONF_TEMPERATURE,
    DEVICE_CLASS_TEMPERATURE,
    ENTITY_CATEGORY_DIAGNOSTIC,
    STATE_CLASS_MEASUREMENT,
    UNIT_CELSIUS,
)

DEPENDENCIES = ["i2c"]

kmeteriso_ns = cg.esphome_ns.namespace("kmeteriso")

KMeterISOComponent = kmeteriso_ns.class_(
    "KMeterISOComponent", cg.PollingComponent, i2c.I2CDevice
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(KMeterISOComponent),
            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_CELSIUS,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_TEMPERATURE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_INTERNAL_TEMPERATURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_CELSIUS,
                device_class=DEVICE_CLASS_TEMPERATURE,
                state_class=STATE_CLASS_MEASUREMENT,
                entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
            ),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(i2c.i2c_device_schema(0x66))
)


async def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    await cg.register_component(var, config)
    await i2c.register_i2c_device(var, config)

    if temperature_config := config.get(CONF_TEMPERATURE):
        sens = await sensor.new_sensor(temperature_config)
        cg.add(var.set_temperature_sensor(sens))
    if internal_temperature_config := config.get(CONF_INTERNAL_TEMPERATURE):
        sens = await sensor.new_sensor(internal_temperature_config)
        cg.add(var.set_internal_temperature_sensor(sens))