import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import sensor, i2c
from esphome import pins
from esphome.const import (
    CONF_ID,
    CONF_VOLTAGE,
    DEVICE_CLASS_CURRENT,
    DEVICE_CLASS_POWER,
    DEVICE_CLASS_VOLTAGE,
    ICON_EMPTY,
    UNIT_VOLT,
    UNIT_AMPERE,
    UNIT_WATT,
)

DEPENDENCIES = ["i2c"]

ade7953_ns = cg.esphome_ns.namespace("ade7953")
ADE7953 = ade7953_ns.class_("ADE7953", cg.PollingComponent, i2c.I2CDevice)

CONF_IRQ_PIN = "irq_pin"
CONF_CURRENT_A = "current_a"
CONF_CURRENT_B = "current_b"
CONF_ACTIVE_POWER_A = "active_power_a"
CONF_ACTIVE_POWER_B = "active_power_b"

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(ADE7953),
            cv.Optional(CONF_IRQ_PIN): pins.input_pin,
            cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
                UNIT_VOLT, ICON_EMPTY, 1, DEVICE_CLASS_VOLTAGE
            ),
            cv.Optional(CONF_CURRENT_A): sensor.sensor_schema(
                UNIT_AMPERE, ICON_EMPTY, 2, DEVICE_CLASS_CURRENT
            ),
            cv.Optional(CONF_CURRENT_B): sensor.sensor_schema(
                UNIT_AMPERE, ICON_EMPTY, 2, DEVICE_CLASS_CURRENT
            ),
            cv.Optional(CONF_ACTIVE_POWER_A): sensor.sensor_schema(
                UNIT_WATT, ICON_EMPTY, 1, DEVICE_CLASS_POWER
            ),
            cv.Optional(CONF_ACTIVE_POWER_B): sensor.sensor_schema(
                UNIT_WATT, ICON_EMPTY, 1, DEVICE_CLASS_POWER
            ),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(i2c.i2c_device_schema(0x38))
)


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_IRQ_PIN in config:
        cg.add(var.set_irq_pin(config[CONF_IRQ_PIN]))

    for key in [
        CONF_VOLTAGE,
        CONF_CURRENT_A,
        CONF_CURRENT_B,
        CONF_ACTIVE_POWER_A,
        CONF_ACTIVE_POWER_B,
    ]:
        if key not in config:
            continue
        conf = config[key]
        sens = yield sensor.new_sensor(conf)
        cg.add(getattr(var, f"set_{key}_sensor")(sens))