import esphome.codegen as cg
from esphome.components import i2c, sensor
import esphome.config_validation as cv
from esphome.const import (
    CONF_HUMIDITY,
    CONF_ID,
    CONF_PRESSURE,
    CONF_TEMPERATURE,
    DEVICE_CLASS_HUMIDITY,
    DEVICE_CLASS_PRESSURE,
    DEVICE_CLASS_TEMPERATURE,
    STATE_CLASS_MEASUREMENT,
    UNIT_CELSIUS,
    UNIT_HECTOPASCAL,
    UNIT_PERCENT,
)

DEPENDENCIES = ["i2c"]

ms8607_ns = cg.esphome_ns.namespace("ms8607")
MS8607Component = ms8607_ns.class_(
    "MS8607Component", cg.PollingComponent, i2c.I2CDevice
)

CONF_HUMIDITY_I2C_ID = "humidity_i2c_id"
MS8607HumidityDevice = ms8607_ns.class_("MS8607HumidityDevice", i2c.I2CDevice)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(MS8607Component),
            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_CELSIUS,
                accuracy_decimals=2,  # Resolution: 0.01
                device_class=DEVICE_CLASS_TEMPERATURE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_PRESSURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_HECTOPASCAL,
                accuracy_decimals=2,  # Resolution: 0.016
                device_class=DEVICE_CLASS_PRESSURE,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_HUMIDITY): sensor.sensor_schema(
                unit_of_measurement=UNIT_PERCENT,
                accuracy_decimals=2,  # Resolution: 0.04
                device_class=DEVICE_CLASS_HUMIDITY,
                state_class=STATE_CLASS_MEASUREMENT,
            )
            .extend(
                {
                    cv.GenerateID(CONF_HUMIDITY_I2C_ID): cv.declare_id(
                        MS8607HumidityDevice
                    ),
                }
            )
            .extend(i2c.i2c_device_schema(0x40)),  # default address for humidity
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(i2c.i2c_device_schema(0x76))  # default address for temp/pressure
)


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 pressure_config := config.get(CONF_PRESSURE):
        sens = await sensor.new_sensor(pressure_config)
        cg.add(var.set_pressure_sensor(sens))

    if humidity_config := config.get(CONF_HUMIDITY):
        sens = await sensor.new_sensor(humidity_config)
        cg.add(var.set_humidity_sensor(sens))
        humidity_device = cg.new_Pvariable(humidity_config[CONF_HUMIDITY_I2C_ID])
        await i2c.register_i2c_device(humidity_device, humidity_config)
        cg.add(var.set_humidity_device(humidity_device))