import subprocess
import time
import requests
import sys
from flask import jsonify

heartrateCmd = ['itctl', 'get', 'heart']
stepsCmd = ['itctl', 'get', 'steps']
batteryCmd = ['itctl', 'get', 'battery']

def getHeartrate():
	proc = subprocess.Popen(heartrateCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
	o, e = proc.communicate()

	if(proc.returncode != 0):
		return -1 # Inform that cyberware is inoperative
	o = o.decode("utf-8")
	bpm = o.split(' ')
	return bpm[0]

def getSteps():
	proc = subprocess.Popen(stepsCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
	o, e = proc.communicate()

	if(proc.returncode != 0):
		return -1 # Inform that cyberware is inoperative
	o = o.decode("utf-8")
	steps = o.split(' ')
	return steps[0]

def getBattery():
	proc = subprocess.Popen(batteryCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
	o, e = proc.communicate()

	if(proc.returncode != 0):
		return -1 # Inform that cyberware is inoperative
	o = o.decode("utf-8")
	battery = o.split('%')
	return battery[0]

heartrate = 0
steps = 0
battery = 0

urlBase = 'http://localhost:5000'
urlHeartrate = urlBase + '/api/vitals/heartrate'
urlSteps = urlBase + '/api/fitness/steps'
urlAddCyberware = urlBase + '/api/cyberware/add'
#urlBattery = urlBase + # Cyberware management not yet implemented

# Add to Cyberware and get UUID
uuidRequest = requests.post(urlAddCyberware, json={ 'name': "PineTime", 'hotpluggable': True, 'canSet': [ '/api/vitals/heartrate', '/api/fitness/steps' ] })
if(uuidRequest.status_code == 200):
	uuid = uuidRequest.json()[0]['uuid']
	print(uuid)
else:
	sys.exit("Failed to get UUID")


while True:
	try:
		heartrate = getHeartrate()
		steps = getSteps()
		#battery = getBattery()

		heartrateRequest = requests.post(urlHeartrate, json={ 'heartrate': heartrate, 'uuid': uuid } )
		stepsRequest = requests.post(urlSteps, json={ 'steps': steps, 'uuid': uuid })
	except:
		print("An exception occured. TODO: Exception report to frontend.")

	time.sleep(1)

# Disconnect Cyberware
requests.post(urlRemoveCyberware, json={ 'uuid': uuid })