import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import pins
from esphome.components.ledc.output import LEDCOutput
from esphome.components.gpio.output import GPIOBinaryOutput
from esphome.components.i2c import I2CBus, I2CDevice
from esphome.const import (
    CONF_RED, CONF_GREEN, CONF_BLUE, CONF_WHITE,
    CONF_TRIGGER_PIN, CONF_SDA, CONF_SCL, CONF_ADDRESS
)

# TODO subsection in config for leds and front_panel.

CODEOWNERS = ["@mmakaay"]

CONF_MASTER1 = "master1"
CONF_MASTER2 = "master2"
CONF_FP_I2C = "fp_i2c"
CONF_FP_I2C_ADDRESS = "fp_i2c_address"
CONF_FP_TRIGGER_PIN = "fp_trigger_pin"
CONF_LIGHT_HAL_ID = "light_hal_id"
CONF_FRONT_PANEL_HAL_ID = "front_panel_hal_id"
CONF_ON_BRIGHTNESS = "on_brightness"
CONF_LEDS = "leds"

xiaomi_ns = cg.esphome_ns.namespace("xiaomi")
bslamp2_ns = xiaomi_ns.namespace("bslamp2")
LightHAL = bslamp2_ns.class_("LightHAL", cg.Component)
FrontPanelHAL = bslamp2_ns.class_("FrontPanelHAL", cg.Component, I2CDevice)

FrontPanelLEDs = bslamp2_ns.enum("FrontPanelLEDs")
FRONT_PANEL_LED_OPTIONS = {
    "NONE": FrontPanelLEDs.LED_NONE,
    "ALL": FrontPanelLEDs.LED_ALL,
    "POWER": FrontPanelLEDs.LED_POWER,
    "COLOR": FrontPanelLEDs.LED_COLOR,
    "1": FrontPanelLEDs.LED_1,
    "2": FrontPanelLEDs.LED_2,
    "3": FrontPanelLEDs.LED_3,
    "4": FrontPanelLEDs.LED_4,
    "5": FrontPanelLEDs.LED_5,
    "6": FrontPanelLEDs.LED_6,
    "7": FrontPanelLEDs.LED_7,
    "8": FrontPanelLEDs.LED_8,
    "9": FrontPanelLEDs.LED_9,
    "10": FrontPanelLEDs.LED_10,
}

CONFIG_SCHEMA = cv.COMPONENT_SCHEMA.extend({
    # RGBWW Light
    cv.GenerateID(CONF_LIGHT_HAL_ID): cv.declare_id(LightHAL),
    cv.Required(CONF_RED): cv.use_id(LEDCOutput),
    cv.Required(CONF_GREEN): cv.use_id(LEDCOutput),
    cv.Required(CONF_BLUE): cv.use_id(LEDCOutput),
    cv.Required(CONF_WHITE): cv.use_id(LEDCOutput),
    cv.Required(CONF_MASTER1): cv.use_id(GPIOBinaryOutput),
    cv.Required(CONF_MASTER2): cv.use_id(GPIOBinaryOutput),

    # Front panel I2C
    cv.GenerateID(CONF_FRONT_PANEL_HAL_ID): cv.declare_id(FrontPanelHAL),
    cv.Required(CONF_FP_I2C): cv.use_id(I2CBus),
    cv.Required(CONF_FP_I2C_ADDRESS): cv.i2c_address,
    cv.Required(CONF_FP_TRIGGER_PIN): cv.All(pins.internal_gpio_input_pin_schema)
})

async def make_light_hal(config):
    light_hal = cg.new_Pvariable(config[CONF_LIGHT_HAL_ID])
    await cg.register_component(light_hal, config)
    cg.add(light_hal.set_red_pin(await cg.get_variable(config[CONF_RED])))
    cg.add(light_hal.set_green_pin(await cg.get_variable(config[CONF_GREEN])))
    cg.add(light_hal.set_blue_pin(await cg.get_variable(config[CONF_BLUE])))
    cg.add(light_hal.set_white_pin(await cg.get_variable(config[CONF_WHITE])))
    cg.add(light_hal.set_master1_pin(await cg.get_variable(config[CONF_MASTER1])))
    cg.add(light_hal.set_master2_pin(await cg.get_variable(config[CONF_MASTER2])))

async def make_front_panel_hal(config):
    fp_hal = cg.new_Pvariable(config[CONF_FRONT_PANEL_HAL_ID])
    await cg.register_component(fp_hal, config)
    trigger_pin = await cg.gpio_pin_expression(config[CONF_FP_TRIGGER_PIN])
    cg.add(fp_hal.set_trigger_pin(trigger_pin))   

    fp_i2c_var = await cg.get_variable(config[CONF_FP_I2C])
    cg.add(fp_hal.set_i2c_bus(fp_i2c_var))
    cg.add(fp_hal.set_i2c_address(config[CONF_FP_I2C_ADDRESS]))

async def to_code(config):
    await make_light_hal(config)
    await make_front_panel_hal(config)