import esphome.codegen as cg
from esphome.components import i2c, sensirion_common, sensor
import esphome.config_validation as cv
from esphome.const import (
    CONF_CO2,
    CONF_FORMALDEHYDE,
    CONF_HUMIDITY,
    CONF_ID,
    CONF_NOX,
    CONF_PM_1_0,
    CONF_PM_2_5,
    CONF_PM_4_0,
    CONF_PM_10_0,
    CONF_TEMPERATURE,
    CONF_TYPE,
    CONF_VOC,
    DEVICE_CLASS_CARBON_DIOXIDE,
    DEVICE_CLASS_HUMIDITY,
    DEVICE_CLASS_PM1,
    DEVICE_CLASS_PM10,
    DEVICE_CLASS_PM25,
    DEVICE_CLASS_TEMPERATURE,
    ICON_CHEMICAL_WEAPON,
    ICON_MOLECULE_CO2,
    ICON_RADIATOR,
    ICON_THERMOMETER,
    ICON_WATER_PERCENT,
    STATE_CLASS_MEASUREMENT,
    UNIT_CELSIUS,
    UNIT_MICROGRAMS_PER_CUBIC_METER,
    UNIT_PARTS_PER_MILLION,
    UNIT_PERCENT,
)

CODEOWNERS = ["@martgras", "@mebner86", "@mikelawrence", "@tuct"]
DEPENDENCIES = ["i2c"]
AUTO_LOAD = ["sensirion_common"]

sen6x_ns = cg.esphome_ns.namespace("sen6x")
SEN6XComponent = sen6x_ns.class_(
    "SEN6XComponent", cg.PollingComponent, sensirion_common.SensirionI2CDevice
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(SEN6XComponent),
            cv.Optional(CONF_TYPE): cv.one_of(
                "SEN62", "SEN63C", "SEN65", "SEN66", "SEN68", "SEN69C", upper=True
            ),
            cv.Optional(CONF_PM_1_0): sensor.sensor_schema(
                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
                icon=ICON_CHEMICAL_WEAPON,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_PM1,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_PM_2_5): sensor.sensor_schema(
                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
                icon=ICON_CHEMICAL_WEAPON,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_PM25,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_PM_4_0): sensor.sensor_schema(
                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
                icon=ICON_CHEMICAL_WEAPON,
                accuracy_decimals=2,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_PM_10_0): sensor.sensor_schema(
                unit_of_measurement=UNIT_MICROGRAMS_PER_CUBIC_METER,
                icon=ICON_CHEMICAL_WEAPON,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_PM10,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_CELSIUS,
                icon=ICON_THERMOMETER,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_TEMPERATURE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_HUMIDITY): sensor.sensor_schema(
                unit_of_measurement=UNIT_PERCENT,
                icon=ICON_WATER_PERCENT,
                accuracy_decimals=2,
                device_class=DEVICE_CLASS_HUMIDITY,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_VOC): sensor.sensor_schema(
                icon=ICON_RADIATOR,
                accuracy_decimals=0,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_NOX): sensor.sensor_schema(
                icon=ICON_RADIATOR,
                accuracy_decimals=0,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_CO2): sensor.sensor_schema(
                unit_of_measurement=UNIT_PARTS_PER_MILLION,
                icon=ICON_MOLECULE_CO2,
                accuracy_decimals=0,
                device_class=DEVICE_CLASS_CARBON_DIOXIDE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_FORMALDEHYDE): sensor.sensor_schema(
                unit_of_measurement="ppb",
                icon=ICON_RADIATOR,
                accuracy_decimals=0,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(i2c.i2c_device_schema(0x6B))
)

SENSOR_MAP = {
    CONF_PM_1_0: "set_pm_1_0_sensor",
    CONF_PM_2_5: "set_pm_2_5_sensor",
    CONF_PM_4_0: "set_pm_4_0_sensor",
    CONF_PM_10_0: "set_pm_10_0_sensor",
    CONF_TEMPERATURE: "set_temperature_sensor",
    CONF_HUMIDITY: "set_humidity_sensor",
    CONF_VOC: "set_voc_sensor",
    CONF_NOX: "set_nox_sensor",
    CONF_CO2: "set_co2_sensor",
    CONF_FORMALDEHYDE: "set_hcho_sensor",
}


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 CONF_TYPE in config:
        cg.add(var.set_type(config[CONF_TYPE]))

    for key, func_name in SENSOR_MAP.items():
        if cfg := config.get(key):
            sens = await sensor.new_sensor(cfg)
            cg.add(getattr(var, func_name)(sens))
