import flask
import spidev
import time
import sys
import RPi.GPIO as GPIO
from flask import request, jsonify

# GPOI settings
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)

spi = spidev.SpiDev()
spi.open(0,0)
spi.max_speed_hz = 1000000

def readadc(adcnum):
        r = spi.xfer2([1,8+adcnum<<4,0])
        adcout = ((r[1]&3)<<8)+r[2]
        return adcout

# server settings
app = flask.Flask(__name__)
app.config["DEBUG"] = False

# message settings
try:
        moist = [
        {'id': 0,
        'volt': readadc(0)},
        {'id': 1,
        'volt': readadc(1)},
        {'id': 2,
        'volt': readadc(2)},
        {'id': 3,
        'volt': readadc(3)}
        ]
except KeyboardInterrupt:
        GPIO.cleanup()

@app.route('/', methods=['GET'])
def home():
    return "<h1>Home</h1><p>This site is a prototype API.</p>"

# A route to return all of the available entries in our catalog.
@app.route('/moist', methods=['GET'])
def api_all():
    return jsonify(moist)


#app.run()
app.run(host="0.0.0.0", port=5050) # or host=127.0.0.1, depends on your needs