import time
import os
from datetime import datetime
import signal
import sys
try:
    import paho.mqtt.client as mqtt
    import gpiozero
    global GPIO
    import RPi.GPIO as GPIO
except ImportError:
    print('Some modules are missing. Try to install them with "pip3 install -r requirements.txt"')
    print(ImportError)
    exit()

sys.path.append('./SDL_Adafruit_ADS1x15')
import SDL_Adafruit_ADS1x15

GPIO.setmode(GPIO.BCM)

def debug_print(message: str):
    now = datetime.now()
    current_time = now.strftime("%H:%M:%S")
    print('[DEBUG]['+current_time+'] '+message)

def error_print(message: str):
    now = datetime.now()
    current_time = now.strftime("%H:%M:%S")
    print('[ERROR]['+current_time+'] '+message)

#relay
def relay_controller(pin: int, status: str):
    if status == "ON":
        relay = gpiozero.OutputDevice(pin, active_high=False, initial_value=False)
        relay.on()
    elif status == "OFF":
        relay = gpiozero.OutputDevice(pin, active_high=False, initial_value=False)
        relay.off()
    else:
        error_print("Unknown status for relay ("+status+")")

#ultrasonic
GPIO_TRIGGER = 18
GPIO_ECHO = 24
GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
GPIO.setup(GPIO_ECHO, GPIO.IN)

def get_water_level():
    GPIO.output(GPIO_TRIGGER, True)
    time.sleep(0.00001)
    GPIO.output(GPIO_TRIGGER, False)
 
    startTime = time.time()
    StopTime = time.time()
 
    while GPIO.input(GPIO_ECHO) == 0:
        startTime = time.time()
    while GPIO.input(GPIO_ECHO) == 1:
        StopTime = time.time()
 
    TimeElapsed = StopTime - startTime
    distance = (TimeElapsed * 34300) / 2
 
    return distance

#moisture
def signal_handler(signal, frame):
        sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)

def get_moisture():
    ADS1115 = 0x01
    gain = 6144
    sps = 250
    adc = SDL_Adafruit_ADS1x15.ADS1x15(ic=ADS1115)

    return adc.readADCSingleEnded(0, gain, sps) / 1000 + adc.readADCSingleEnded(1, gain, sps) / 1000 + adc.readADCSingleEnded(2, gain, sps) / 1000 + adc.readADCSingleEnded(3, gain, sps) / 1000

print(get_moisture())
print(get_water_level())