#!/usr/bin/env python3


# 25 * * * * cd ~/waterpi && ./tempsense.py >> `date '+\%Y'`-temp.csv && git add -A && git commit -m tempdata && git push


# sudo apt install git python3-gpiozero python3-setuptools python3-dev build-essential
# git clone https://github.com/adafruit/Adafruit_Python_DHT
# cd Adafruit_Python_DHT
# sudo python3 setup.py install
# cd ..
# python3 dht11.py
# 

# Copyright (c) 2014 Adafruit Industries
# Author: Tony DiCola

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import Adafruit_DHT
import os
import datetime
import subprocess

# Sensor should be set to Adafruit_DHT.DHT11,
# Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.
sensor = Adafruit_DHT.DHT11

# Example using a Beaglebone Black with DHT sensor
# connected to pin P8_11.
#pin = 'P8_11'

# Example using a Raspberry Pi with DHT sensor
# connected to GPIO23.
pin = os.environ.get('PIN') or 15 

# Try to grab a sensor reading.  Use the read_retry method which will retry up
# to 15 times to get a sensor reading (waiting 2 seconds between each retry).
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
watersensor = subprocess.run(['./watersense.sh'], stdout=subprocess.PIPE)
timestamp = datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S")

# Note that sometimes you won't get a reading and
# the results will be null (because Linux can't
# guarantee the timing of calls to read the sensor).
# If this happens try again!
if humidity is not None and temperature is not None:
    print('{0}, {1:0.1f}*C, {2:0.1f}%, {3}'.format(timestamp, temperature, humidity, watersensor.stdout.decode('utf-8').strip()))
else:
    print('{0}, , ,'.format(timestamp))
