import esphome.codegen as cg
from esphome.components import sensor, spi
import esphome.config_validation as cv
from esphome.const import (
    CONF_APPARENT_POWER,
    CONF_CURRENT,
    CONF_FORWARD_ACTIVE_ENERGY,
    CONF_FREQUENCY,
    CONF_ID,
    CONF_LINE_FREQUENCY,
    CONF_PHASE_A,
    CONF_PHASE_ANGLE,
    CONF_PHASE_B,
    CONF_PHASE_C,
    CONF_POWER,
    CONF_POWER_FACTOR,
    CONF_REACTIVE_POWER,
    CONF_REVERSE_ACTIVE_ENERGY,
    CONF_VOLTAGE,
    DEVICE_CLASS_APPARENT_POWER,
    DEVICE_CLASS_CURRENT,
    DEVICE_CLASS_ENERGY,
    DEVICE_CLASS_POWER,
    DEVICE_CLASS_POWER_FACTOR,
    DEVICE_CLASS_REACTIVE_POWER,
    DEVICE_CLASS_TEMPERATURE,
    DEVICE_CLASS_VOLTAGE,
    ENTITY_CATEGORY_DIAGNOSTIC,
    ICON_CURRENT_AC,
    ICON_FLASH,
    ICON_LIGHTBULB,
    STATE_CLASS_MEASUREMENT,
    STATE_CLASS_TOTAL_INCREASING,
    UNIT_AMPERE,
    UNIT_CELSIUS,
    UNIT_DEGREES,
    UNIT_HERTZ,
    UNIT_PERCENT,
    UNIT_VOLT,
    UNIT_VOLT_AMPS,
    UNIT_VOLT_AMPS_REACTIVE,
    UNIT_WATT,
    UNIT_WATT_HOURS,
)

from . import atm90e36_ns

CONF_CHIP_TEMPERATURE = "chip_temperature"
CONF_GAIN_CURRNT = "gain_current"
CONF_GAIN_DPGA = "gain_dpga"
CONF_GAIN_CURRENT = "gain_current"
CONF_CURRENT_PHASES = "current_phases"
CONF_GAIN_VOLTAGE = "gain_voltage"
CONF_GAIN_CT = "gain_ct"
CONF_OFFSET_VOLTAGE = "offset_voltage"
CONF_OFFSET_CURRENT = "offset_current"
CONF_OFFSET_ACTIVE_POWER = "offset_active_power"
CONF_OFFSET_REACTIVE_POWER = "offset_reactive_power"
CONF_HARMONIC_POWER = "harmonic_power"
CONF_ENABLE_OFFSET_CALIBRATION = "enable_offset_calibration"
CONF_ENABLE_GAIN_CALIBRATION = "enable_gain_calibration"
CONF_PHASE_STATUS = "phase_status"
CONF_THD_VOLTAGE = "thd_voltage"
CONF_THD_CURRENT = "thd_current"
CONF_FREQUENCY_STATUS = "frequency_status"
UNIT_DEG = "degrees"
LINE_FREQS = {
    "50HZ": 50,
    "60HZ": 60,
}
CURRENT_PHASES = {
    "2": 2,
    "3": 3,
}
CURRENT_GAINS = {
    "1X": 0x0,
    "2X": 0x15,
    "4X": 0x2A,
}

VOLTAGE_GAINS = {
    "1X": 0x0,
    "2X": 0x15,
    "4X": 0x2A,
}

DPGA_GAINS = {
    "1X": 0x0,
    "2X": 0x1,
    "4X": 0x2,
    "8X": 0x3
}

ATM90E36Component = atm90e36_ns.class_(
    "ATM90E36Component", cg.PollingComponent, spi.SPIDevice
)

ATM90E36_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=0,
            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,
            device_class=DEVICE_CLASS_REACTIVE_POWER,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_APPARENT_POWER): sensor.sensor_schema(
            unit_of_measurement=UNIT_VOLT_AMPS,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_APPARENT_POWER,
            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_PHASE_ANGLE): sensor.sensor_schema(
            unit_of_measurement=UNIT_DEGREES,
            accuracy_decimals=2,
            device_class=DEVICE_CLASS_POWER,
            state_class=STATE_CLASS_MEASUREMENT,
        ),
        cv.Optional(CONF_HARMONIC_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_THD_VOLTAGE): sensor.sensor_schema(
            unit_of_measurement=UNIT_PERCENT,
            icon="mdi:sine-wave",
            accuracy_decimals=2,
        ),
        cv.Optional(CONF_THD_CURRENT): sensor.sensor_schema(
            unit_of_measurement=UNIT_PERCENT,
            icon="mdi:sine-wave",
            accuracy_decimals=2,
        ),
        cv.Optional(CONF_GAIN_VOLTAGE, default=7305): cv.uint16_t,
        cv.Optional(CONF_GAIN_CT, default=27961): cv.uint16_t,
        cv.Optional(CONF_OFFSET_VOLTAGE, default=0): cv.int_,
        cv.Optional(CONF_OFFSET_CURRENT, default=0): cv.int_,
        cv.Optional(CONF_OFFSET_ACTIVE_POWER, default=0): cv.int_,
        cv.Optional(CONF_OFFSET_REACTIVE_POWER, default=0): cv.int_,
    }
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(ATM90E36Component),
            cv.Optional(CONF_PHASE_A): ATM90E36_PHASE_SCHEMA,
            cv.Optional(CONF_PHASE_B): ATM90E36_PHASE_SCHEMA,
            cv.Optional(CONF_PHASE_C): ATM90E36_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_CURRENT, default="1X"): cv.enum(CURRENT_GAINS, upper=True),
            cv.Optional(CONF_GAIN_VOLTAGE, default="1X"): cv.enum(VOLTAGE_GAINS, upper=True),
            cv.Optional(CONF_GAIN_DPGA, default="1X"): cv.enum(DPGA_GAINS, upper=True),
            cv.Optional(CONF_ENABLE_OFFSET_CALIBRATION, default=False): cv.boolean,
            cv.Optional(CONF_ENABLE_GAIN_CALIBRATION, default=False): cv.boolean,
        }
    )
    .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 voltage_config := conf.get(CONF_VOLTAGE):
            sens = await sensor.new_sensor(voltage_config)
            cg.add(var.set_voltage_sensor(i, sens))
        if current_config := conf.get(CONF_CURRENT):
            sens = await sensor.new_sensor(current_config)
            cg.add(var.set_current_sensor(i, sens))
        if power_config := conf.get(CONF_POWER):
            sens = await sensor.new_sensor(power_config)
            cg.add(var.set_power_sensor(i, sens))
        if reactive_power_config := conf.get(CONF_REACTIVE_POWER):
            sens = await sensor.new_sensor(reactive_power_config)
            cg.add(var.set_reactive_power_sensor(i, sens))
        if apparent_power_config := conf.get(CONF_APPARENT_POWER):
            sens = await sensor.new_sensor(apparent_power_config)
            cg.add(var.set_apparent_power_sensor(i, sens))
        if power_factor_config := conf.get(CONF_POWER_FACTOR):
            sens = await sensor.new_sensor(power_factor_config)
            cg.add(var.set_power_factor_sensor(i, sens))
        if forward_active_energy_config := conf.get(CONF_FORWARD_ACTIVE_ENERGY):
            sens = await sensor.new_sensor(forward_active_energy_config)
            cg.add(var.set_forward_active_energy_sensor(i, sens))
        if reverse_active_energy_config := conf.get(CONF_REVERSE_ACTIVE_ENERGY):
            sens = await sensor.new_sensor(reverse_active_energy_config)
            cg.add(var.set_reverse_active_energy_sensor(i, sens))
        if phase_angle_config := conf.get(CONF_PHASE_ANGLE):
            sens = await sensor.new_sensor(phase_angle_config)
            cg.add(var.set_phase_angle_sensor(i, sens))
        if harmonic_active_power_config := conf.get(CONF_HARMONIC_POWER):
            sens = await sensor.new_sensor(harmonic_active_power_config)
            cg.add(var.set_harmonic_active_power_sensor(i, sens))
        if thd_voltage_config := conf.get(CONF_THD_VOLTAGE):
            sens = await sensor.new_sensor(thd_voltage_config)
            cg.add(var.set_thd_voltage_sensor(i, sens))
        if thd_current_config := conf.get(CONF_THD_CURRENT):
            sens = await sensor.new_sensor(thd_current_config)
            cg.add(var.set_thd_current_sensor(i, sens))
    if frequency_config := config.get(CONF_FREQUENCY):
        sens = await sensor.new_sensor(frequency_config)
        cg.add(var.set_freq_sensor(sens))
    if chip_temperature_config := config.get(CONF_CHIP_TEMPERATURE):
        sens = await sensor.new_sensor(chip_temperature_config)
        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_current(config[CONF_GAIN_CURRENT]))
    cg.add(var.set_pga_voltage(config[CONF_GAIN_VOLTAGE]))
    cg.add(var.set_dpga_gain(config[CONF_GAIN_DPGA]))
