import esphome.codegen as cg
from esphome.components import sensor, uart
import esphome.config_validation as cv
from esphome.const import (
    CONF_COUNTS,
    CONF_DIELECTRIC_CONSTANT,
    CONF_ID,
    CONF_MOISTURE,
    CONF_PERMITTIVITY,
    CONF_TEMPERATURE,
    CONF_VOLTAGE,
    DEVICE_CLASS_TEMPERATURE,
    DEVICE_CLASS_VOLTAGE,
    ICON_WATER_PERCENT,
    STATE_CLASS_MEASUREMENT,
    UNIT_CELSIUS,
    UNIT_EMPTY,
    UNIT_PERCENT,
    UNIT_VOLT,
)

DEPENDENCIES = ["uart"]

smt100_ns = cg.esphome_ns.namespace("smt100")
SMT100 = smt100_ns.class_("SMT100Component", cg.PollingComponent, uart.UARTDevice)


CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(SMT100),
            cv.Optional(CONF_COUNTS): sensor.sensor_schema(
                unit_of_measurement=UNIT_EMPTY,
                accuracy_decimals=0,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_DIELECTRIC_CONSTANT): cv.invalid(
                "Use 'permittivity' instead"
            ),
            cv.Optional(CONF_PERMITTIVITY): sensor.sensor_schema(
                unit_of_measurement=UNIT_EMPTY,
                accuracy_decimals=2,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            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_MOISTURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_PERCENT,
                icon=ICON_WATER_PERCENT,
                accuracy_decimals=2,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
                unit_of_measurement=UNIT_VOLT,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_VOLTAGE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(uart.UART_DEVICE_SCHEMA)
)

FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
    "smt100", baud_rate=9600, require_rx=True, require_tx=True
)


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

    if CONF_COUNTS in config:
        sens = await sensor.new_sensor(config[CONF_COUNTS])
        cg.add(var.set_counts_sensor(sens))

    if CONF_PERMITTIVITY in config:
        sens = await sensor.new_sensor(config[CONF_PERMITTIVITY])
        cg.add(var.set_permittivity_sensor(sens))

    if CONF_TEMPERATURE in config:
        sens = await sensor.new_sensor(config[CONF_TEMPERATURE])
        cg.add(var.set_temperature_sensor(sens))

    if CONF_MOISTURE in config:
        sens = await sensor.new_sensor(config[CONF_MOISTURE])
        cg.add(var.set_moisture_sensor(sens))

    if CONF_VOLTAGE in config:
        sens = await sensor.new_sensor(config[CONF_VOLTAGE])
        cg.add(var.set_voltage_sensor(sens))