import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import sensor, spi
from esphome.const import (
    CONF_ID,
    CONF_REACTIVE_POWER,
    CONF_VOLTAGE,
    CONF_CURRENT,
    CONF_POWER,
    CONF_POWER_FACTOR,
    CONF_FREQUENCY,
    CONF_FORWARD_ACTIVE_ENERGY,
    CONF_REVERSE_ACTIVE_ENERGY,
    DEVICE_CLASS_CURRENT,
    DEVICE_CLASS_ENERGY,
    DEVICE_CLASS_POWER,
    DEVICE_CLASS_POWER_FACTOR,
    DEVICE_CLASS_TEMPERATURE,
    DEVICE_CLASS_VOLTAGE,
    ENTITY_CATEGORY_DIAGNOSTIC,
    ICON_LIGHTBULB,
    ICON_CURRENT_AC,
    STATE_CLASS_MEASUREMENT,
    STATE_CLASS_TOTAL_INCREASING,
    UNIT_HERTZ,
    UNIT_VOLT,
    UNIT_AMPERE,
    UNIT_WATT,
    UNIT_CELSIUS,
    UNIT_VOLT_AMPS_REACTIVE,
    UNIT_WATT_HOURS,
)

CONF_PHASE_A = "phase_a"
CONF_PHASE_B = "phase_b"
CONF_PHASE_C = "phase_c"

CONF_LINE_FREQUENCY = "line_frequency"
CONF_CHIP_TEMPERATURE = "chip_temperature"
CONF_GAIN_PGA = "gain_pga"
CONF_CURRENT_PHASES = "current_phases"
CONF_GAIN_VOLTAGE = "gain_voltage"
CONF_GAIN_CT = "gain_ct"
LINE_FREQS = {
    "50HZ": 50,
    "60HZ": 60,
}
CURRENT_PHASES = {
    "2": 2,
    "3": 3,
}
PGA_GAINS = {
    "1X": 0x0,
    "2X": 0x15,
    "4X": 0x2A,
}

atm90e32_ns = cg.esphome_ns.namespace("atm90e32")
ATM90E32Component = atm90e32_ns.class_(
    "ATM90E32Component", cg.PollingComponent, spi.SPIDevice
)

ATM90E32_PHASE_SCHEMA = cv.Schema(
    {
        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,
        ),
        cv.Optional(CONF_CURRENT): sensor.sensor_schema(
            unit_of_measurement=UNIT_AMPERE,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_CURRENT,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_POWER): sensor.sensor_schema(
            unit_of_measurement=UNIT_WATT,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_POWER,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_REACTIVE_POWER): sensor.sensor_schema(
            unit_of_measurement=UNIT_VOLT_AMPS_REACTIVE,
            icon=ICON_LIGHTBULB,
            accuracy_decimals=2,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_POWER_FACTOR): sensor.sensor_schema(
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_POWER_FACTOR,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_FORWARD_ACTIVE_ENERGY): sensor.sensor_schema(
            unit_of_measurement=UNIT_WATT_HOURS,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_ENERGY,
            state_class=STATE_CLASS_TOTAL_INCREASING,
        ),
        cv.Optional(CONF_REVERSE_ACTIVE_ENERGY): sensor.sensor_schema(
            unit_of_measurement=UNIT_WATT_HOURS,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_ENERGY,
            state_class=STATE_CLASS_TOTAL_INCREASING,
        ),
        cv.Optional(CONF_GAIN_VOLTAGE, default=7305): cv.uint16_t,
        cv.Optional(CONF_GAIN_CT, default=27961): cv.uint16_t,
    }
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(ATM90E32Component),
            cv.Optional(CONF_PHASE_A): ATM90E32_PHASE_SCHEMA,
            cv.Optional(CONF_PHASE_B): ATM90E32_PHASE_SCHEMA,
            cv.Optional(CONF_PHASE_C): ATM90E32_PHASE_SCHEMA,
            cv.Optional(CONF_FREQUENCY): sensor.sensor_schema(
                unit_of_measurement=UNIT_HERTZ,
                icon=ICON_CURRENT_AC,
                accuracy_decimals=1,
                state_class=STATE_CLASS_MEASUREMENT,
            ),
            cv.Optional(CONF_CHIP_TEMPERATURE): sensor.sensor_schema(
                unit_of_measurement=UNIT_CELSIUS,
                accuracy_decimals=1,
                device_class=DEVICE_CLASS_TEMPERATURE,
                state_class=STATE_CLASS_MEASUREMENT,
                entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
            ),
            cv.Required(CONF_LINE_FREQUENCY): cv.enum(LINE_FREQS, upper=True),
            cv.Optional(CONF_CURRENT_PHASES, default="3"): cv.enum(
                CURRENT_PHASES, upper=True
            ),
            cv.Optional(CONF_GAIN_PGA, default="2X"): cv.enum(PGA_GAINS, upper=True),
        }
    )
    .extend(cv.polling_component_schema("60s"))
    .extend(spi.spi_device_schema())
)


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

    for i, phase in enumerate([CONF_PHASE_A, CONF_PHASE_B, CONF_PHASE_C]):
        if phase not in config:
            continue
        conf = config[phase]
        cg.add(var.set_volt_gain(i, conf[CONF_GAIN_VOLTAGE]))
        cg.add(var.set_ct_gain(i, conf[CONF_GAIN_CT]))
        if CONF_VOLTAGE in conf:
            sens = await sensor.new_sensor(conf[CONF_VOLTAGE])
            cg.add(var.set_voltage_sensor(i, sens))
        if CONF_CURRENT in conf:
            sens = await sensor.new_sensor(conf[CONF_CURRENT])
            cg.add(var.set_current_sensor(i, sens))
        if CONF_POWER in conf:
            sens = await sensor.new_sensor(conf[CONF_POWER])
            cg.add(var.set_power_sensor(i, sens))
        if CONF_REACTIVE_POWER in conf:
            sens = await sensor.new_sensor(conf[CONF_REACTIVE_POWER])
            cg.add(var.set_reactive_power_sensor(i, sens))
        if CONF_POWER_FACTOR in conf:
            sens = await sensor.new_sensor(conf[CONF_POWER_FACTOR])
            cg.add(var.set_power_factor_sensor(i, sens))
        if CONF_FORWARD_ACTIVE_ENERGY in conf:
            sens = await sensor.new_sensor(conf[CONF_FORWARD_ACTIVE_ENERGY])
            cg.add(var.set_forward_active_energy_sensor(i, sens))
        if CONF_REVERSE_ACTIVE_ENERGY in conf:
            sens = await sensor.new_sensor(conf[CONF_REVERSE_ACTIVE_ENERGY])
            cg.add(var.set_reverse_active_energy_sensor(i, sens))
    if CONF_FREQUENCY in config:
        sens = await sensor.new_sensor(config[CONF_FREQUENCY])
        cg.add(var.set_freq_sensor(sens))
    if CONF_CHIP_TEMPERATURE in config:
        sens = await sensor.new_sensor(config[CONF_CHIP_TEMPERATURE])
        cg.add(var.set_chip_temperature_sensor(sens))
    cg.add(var.set_line_freq(config[CONF_LINE_FREQUENCY]))
    cg.add(var.set_current_phases(config[CONF_CURRENT_PHASES]))
    cg.add(var.set_pga_gain(config[CONF_GAIN_PGA]))
