# SPDX-FileCopyrightText: 2021 Eva Herrada for Adafruit Industries
# SPDX-License-Identifier: MIT

from os import getenv

import adafruit_connection_manager
import adafruit_minimqtt.adafruit_minimqtt as MQTT
import adafruit_sht4x
import board
import busio
import wifi
from adafruit_io.adafruit_io import IO_MQTT
from adafruit_magtag.magtag import MagTag

# Add a settings.toml to your filesystem that has token variables "CIRCUITPY_WIFI_SSID" and
# "CIRCUITPY_WIFI_PASSWORD" with your WiFi credentials. DO NOT share that file or commit it
# into Git or other source control.

magtag = MagTag()

# Get WiFi details and Adafruit IO keys, ensure these are setup in settings.toml
# (visit io.adafruit.com if you need to create an account, or if you need your Adafruit IO key.)
ssid = getenv("CIRCUITPY_WIFI_SSID")
password = getenv("CIRCUITPY_WIFI_PASSWORD")
aio_username = getenv("ADAFRUIT_AIO_USERNAME")
aio_key = getenv("ADAFRUIT_AIO_KEY")

### WiFi ###

try:
    print(f"Connecting to {ssid}")
    wifi.radio.connect(ssid, password)
    print(f"Connected to {ssid}!")

    # Create a socket pool and ssl_context
    pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
    ssl_context = adafruit_connection_manager.get_radio_ssl_context(wifi.radio)

    # Initialize a new MQTT Client object
    mqtt_client = MQTT.MQTT(
        broker="io.adafruit.com",
        username=aio_username,
        password=aio_key,
        socket_pool=pool,
        ssl_context=ssl_context,
    )

    # Initialize an Adafruit IO MQTT Client
    io = IO_MQTT(mqtt_client)

    # Connect to Adafruit IO
    print("Connecting to Adafruit IO...")
    io.connect()

    i2c = busio.I2C(board.SCL, board.SDA)
    sht = adafruit_sht4x.SHT4x(i2c)
    print("Found SHT4x with serial number", hex(sht.serial_number))

    sht.mode = adafruit_sht4x.Mode.NOHEAT_HIGHPRECISION
    # Can also set the mode to enable heater
    # sht.mode = adafruit_sht4x.Mode.LOWHEAT_100MS
    print("Current mode is: ", adafruit_sht4x.Mode.string[sht.mode])

    magtag.add_text(
        text_position=(
            50,
            128 / 4,
        ),
        text_scale=2,
    )

    magtag.add_text(
        text_position=(
            50,
            (2 * 128) / 4,
        ),
        text_scale=2,
    )

    magtag.add_text(
        text_position=(
            50,
            (3 * 128) / 4,
        ),
        text_scale=2,
    )

    temperature, relative_humidity = sht.measurements
    magtag.set_text(f"Temperature: {temperature:0.1f} C", 0, False)
    magtag.set_text(f"Humidity: {relative_humidity:0.1f} %", 1, False)
    T = temperature * 1.8 + 32
    humidity = relative_humidity
    HI = (
        -42.379
        + 2.04901523 * T
        + 10.14333127 * humidity
        - 0.22475541 * T * humidity
        - 0.00683783 * T * T
        - 0.05481717 * humidity**2
        + 0.00122874 * T * T * humidity
        + 0.00085282 * T * humidity**2
        - 0.00000199 * T * T * humidity**2
    )
    magtag.set_text(f"Feels like: {HI:0.1f} F", 2)
    io.publish("temperature", temperature)
    io.publish("humidity", relative_humidity)
    io.publish("heatindex", HI)
    magtag.exit_and_deep_sleep(600)

except ConnectionError:
    i2c = busio.I2C(board.SCL, board.SDA)
    sht = adafruit_sht4x.SHT4x(i2c)
    print("Found SHT4x with serial number", hex(sht.serial_number))

    sht.mode = adafruit_sht4x.Mode.NOHEAT_HIGHPRECISION
    # Can also set the mode to enable heater
    # sht.mode = adafruit_sht4x.Mode.LOWHEAT_100MS
    print("Current mode is: ", adafruit_sht4x.Mode.string[sht.mode])

    magtag.add_text(
        text_position=(
            50,
            128 / 4,
        ),
        text_scale=2,
    )

    magtag.add_text(
        text_position=(
            50,
            (3 * 128) / 4,
        ),
        text_scale=2,
    )

    temperature, relative_humidity = sht.measurements
    magtag.set_text(f"Temperature: {temperature:0.1f} C", 0, False)
    magtag.set_text(f"Humidity: {relative_humidity:0.1f} %", 1)
    magtag.exit_and_deep_sleep(300)