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

DEPENDENCIES = ["i2c"]

bmp085_ns = cg.esphome_ns.namespace("bmp085")
BMP085Component = bmp085_ns.class_(
    "BMP085Component", cg.PollingComponent, i2c.I2CDevice
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(BMP085Component),
            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
                UNIT_CELSIUS, ICON_EMPTY, 1, DEVICE_CLASS_TEMPERATURE
            ),
            cv.Optional(CONF_PRESSURE): sensor.sensor_schema(
                UNIT_HECTOPASCAL, ICON_EMPTY, 1, DEVICE_CLASS_PRESSURE
            ),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(i2c.i2c_device_schema(0x77))
)


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

    if CONF_TEMPERATURE in config:
        conf = config[CONF_TEMPERATURE]
        sens = yield sensor.new_sensor(conf)
        cg.add(var.set_temperature(sens))

    if CONF_PRESSURE in config:
        conf = config[CONF_PRESSURE]
        sens = yield sensor.new_sensor(conf)
        cg.add(var.set_pressure(sens))
