'''
Some basic examples using Espec North America's web controller RESTful API

requires the requests library: http://docs.python-requests.org/en/master/
'''
import requests, json, time

def pprint(data):
    print(json.dumps(data, sort_keys=True, indent=4))

uri = 'http://10.30.200.254/api/v1.0/chambers/1'
headers = {'Content-type': 'application/json'}

# 1) Turn on the environmental chamber.
print('\n\nRun constant mode:')
pprint(requests.post(uri + '/operations/constant').json())

# 2) Turn on humidity control.
data = [
    {'controller':1, 'N':2, 'enable':True}  #Humidity
]
pprint(requests.post(uri + '/loops', data=json.dumps(data), headers=headers).json())

# 3/4) Set the temperature/humidity set point
data = [
    {'controller':1, 'N':1, 'enable':True, 'setValue':45}, #Temperature
    {'controller':1, 'N':2, 'enable':True, 'setValue':55}  #Humidity
]
pprint(requests.post(uri + '/loops', data=json.dumps(data), headers=headers).json())

# 5/6) Read the temperature/humidity
print('Get control loop status')
pprint(requests.get(uri + '/loops').json())

# 7) Turn off the chamber.
print('\n\nStop operation for 10 seconds:')
pprint(requests.post(uri + '/operations/standby').json())