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

# Example of publishing the value of an ADC to Adafruit IO
# adafruit_circuitpython_adafruitio with an esp32spi_socket
import time
from os import getenv

import adafruit_connection_manager
import adafruit_requests
import board
import busio
from adafruit_esp32spi import adafruit_esp32spi
from analogio import AnalogIn
from digitalio import DigitalInOut

from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError

# 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")

# If you are using a board with pre-defined ESP32 Pins:
esp32_cs = DigitalInOut(board.ESP_CS)
esp32_ready = DigitalInOut(board.ESP_BUSY)
esp32_reset = DigitalInOut(board.ESP_RESET)

# If you have an externally connected ESP32:
# esp32_cs = DigitalInOut(board.D9)
# esp32_ready = DigitalInOut(board.D10)
# esp32_reset = DigitalInOut(board.D5)

spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)

print("Connecting to AP...")
while not esp.is_connected:
    try:
        esp.connect_AP(ssid, password)
    except RuntimeError as e:
        print("could not connect to AP, retrying: ", e)
        continue
print("Connected to", str(esp.ap_info.ssid, "utf-8"), "\tRSSI:", esp.ap_info.rssi)

# Initialize a requests session
pool = adafruit_connection_manager.get_radio_socketpool(esp)
ssl_context = adafruit_connection_manager.get_radio_ssl_context(esp)
requests = adafruit_requests.Session(pool, ssl_context)

# Initialize an Adafruit IO HTTP API object
io = IO_HTTP(aio_username, aio_key, requests)

try:
    # Get the 'light' feed from Adafruit IO
    light_feed = io.get_feed("light")
except AdafruitIO_RequestError:
    # If no 'light' feed exists, create one
    light_feed = io.create_new_feed("light")

# Set up an ADC
adc = AnalogIn(board.A0)

SENSOR_DELAY = 30
while True:
    light_value = adc.value
    print("ADC Value: ", light_value)
    print("Sending to Adafruit IO...")
    io.send_data(light_feed["key"], light_value)
    print("Sent!")
    # delay sending to Adafruit IO
    time.sleep(SENSOR_DELAY)
