kiln-controller-max31856/kiln-controller.py

299 wiersze
9.1 KiB
Python
Executable File

#!/usr/bin/env python
import os
import sys
import logging
import json
import bottle
import gevent
import geventwebsocket
#from bottle import post, get
from gevent.pywsgi import WSGIServer
from geventwebsocket.handler import WebSocketHandler
from geventwebsocket import WebSocketError
try:
sys.dont_write_bytecode = True
import config
sys.dont_write_bytecode = False
except:
print ("Could not import config file.")
print ("Copy config.py.EXAMPLE to config.py and adapt it for your setup.")
exit(1)
logging.basicConfig(level=config.log_level, format=config.log_format)
log = logging.getLogger("kiln-controller")
log.info("Starting kiln controller")
script_dir = os.path.dirname(os.path.realpath(__file__))
sys.path.insert(0, script_dir + '/lib/')
profile_path = config.kiln_profiles_directory
from oven import SimulatedOven, RealOven, Profile
from ovenWatcher import OvenWatcher
app = bottle.Bottle()
if config.simulate == True:
log.info("this is a simulation")
oven = SimulatedOven()
else:
log.info("this is a real kiln")
oven = RealOven()
ovenWatcher = OvenWatcher(oven)
# this ovenwatcher is used in the oven class for restarts
oven.set_ovenwatcher(ovenWatcher)
@app.route('/')
def index():
return bottle.redirect('/picoreflow/index.html')
@app.get('/api/stats')
def handle_api():
log.info("/api/stats command received")
if hasattr(oven,'pid'):
if hasattr(oven.pid,'pidstats'):
return json.dumps(oven.pid.pidstats)
@app.post('/api')
def handle_api():
log.info("/api is alive")
# run a kiln schedule
if bottle.request.json['cmd'] == 'run':
wanted = bottle.request.json['profile']
log.info('api requested run of profile = %s' % wanted)
# start at a specific minute in the schedule
# for restarting and skipping over early parts of a schedule
startat = 0;
if 'startat' in bottle.request.json:
startat = bottle.request.json['startat']
# get the wanted profile/kiln schedule
profile = find_profile(wanted)
if profile is None:
return { "success" : False, "error" : "profile %s not found" % wanted }
# FIXME juggling of json should happen in the Profile class
profile_json = json.dumps(profile)
profile = Profile(profile_json)
oven.run_profile(profile,startat=startat)
ovenWatcher.record(profile)
if bottle.request.json['cmd'] == 'stop':
log.info("api stop command received")
oven.abort_run()
if bottle.request.json['cmd'] == 'memo':
log.info("api memo command received")
memo = bottle.request.json['memo']
log.info("memo=%s" % (memo))
# get stats during a run
if bottle.request.json['cmd'] == 'stats':
log.info("api stats command received")
if hasattr(oven,'pid'):
if hasattr(oven.pid,'pidstats'):
return json.dumps(oven.pid.pidstats)
return { "success" : True }
def find_profile(wanted):
'''
given a wanted profile name, find it and return the parsed
json profile object or None.
'''
#load all profiles from disk
profiles = get_profiles()
json_profiles = json.loads(profiles)
# find the wanted profile
for profile in json_profiles:
if profile['name'] == wanted:
return profile
return None
@app.route('/picoreflow/:filename#.*#')
def send_static(filename):
log.debug("serving %s" % filename)
return bottle.static_file(filename, root=os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])), "public"))
def get_websocket_from_request():
env = bottle.request.environ
wsock = env.get('wsgi.websocket')
if not wsock:
abort(400, 'Expected WebSocket request.')
return wsock
@app.route('/control')
def handle_control():
wsock = get_websocket_from_request()
log.info("websocket (control) opened")
while True:
try:
message = wsock.receive()
if message:
log.info("Received (control): %s" % message)
msgdict = json.loads(message)
if msgdict.get("cmd") == "RUN":
log.info("RUN command received")
profile_obj = msgdict.get('profile')
if profile_obj:
profile_json = json.dumps(profile_obj)
profile = Profile(profile_json)
oven.run_profile(profile)
ovenWatcher.record(profile)
elif msgdict.get("cmd") == "SIMULATE":
log.info("SIMULATE command received")
#profile_obj = msgdict.get('profile')
#if profile_obj:
# profile_json = json.dumps(profile_obj)
# profile = Profile(profile_json)
#simulated_oven = Oven(simulate=True, time_step=0.05)
#simulation_watcher = OvenWatcher(simulated_oven)
#simulation_watcher.add_observer(wsock)
#simulated_oven.run_profile(profile)
#simulation_watcher.record(profile)
elif msgdict.get("cmd") == "STOP":
log.info("Stop command received")
oven.abort_run()
except WebSocketError as e:
log.error(e)
break
log.info("websocket (control) closed")
@app.route('/storage')
def handle_storage():
wsock = get_websocket_from_request()
log.info("websocket (storage) opened")
while True:
try:
message = wsock.receive()
if not message:
break
log.debug("websocket (storage) received: %s" % message)
try:
msgdict = json.loads(message)
except:
msgdict = {}
if message == "GET":
log.info("GET command received")
wsock.send(get_profiles())
elif msgdict.get("cmd") == "DELETE":
log.info("DELETE command received")
profile_obj = msgdict.get('profile')
if delete_profile(profile_obj):
msgdict["resp"] = "OK"
wsock.send(json.dumps(msgdict))
#wsock.send(get_profiles())
elif msgdict.get("cmd") == "PUT":
log.info("PUT command received")
profile_obj = msgdict.get('profile')
#force = msgdict.get('force', False)
force = True
if profile_obj:
#del msgdict["cmd"]
if save_profile(profile_obj, force):
msgdict["resp"] = "OK"
else:
msgdict["resp"] = "FAIL"
log.debug("websocket (storage) sent: %s" % message)
wsock.send(json.dumps(msgdict))
wsock.send(get_profiles())
except WebSocketError:
break
log.info("websocket (storage) closed")
@app.route('/config')
def handle_config():
wsock = get_websocket_from_request()
log.info("websocket (config) opened")
while True:
try:
message = wsock.receive()
wsock.send(get_config())
except WebSocketError:
break
log.info("websocket (config) closed")
@app.route('/status')
def handle_status():
wsock = get_websocket_from_request()
ovenWatcher.add_observer(wsock)
log.info("websocket (status) opened")
while True:
try:
message = wsock.receive()
wsock.send("Your message was: %r" % message)
except WebSocketError:
break
log.info("websocket (status) closed")
def get_profiles():
try:
profile_files = os.listdir(profile_path)
except:
profile_files = []
profiles = []
for filename in profile_files:
with open(os.path.join(profile_path, filename), 'r') as f:
profiles.append(json.load(f))
return json.dumps(profiles)
def save_profile(profile, force=False):
profile_json = json.dumps(profile)
filename = profile['name']+".json"
filepath = os.path.join(profile_path, filename)
if not force and os.path.exists(filepath):
log.error("Could not write, %s already exists" % filepath)
return False
with open(filepath, 'w+') as f:
f.write(profile_json)
f.close()
log.info("Wrote %s" % filepath)
return True
def delete_profile(profile):
profile_json = json.dumps(profile)
filename = profile['name']+".json"
filepath = os.path.join(profile_path, filename)
os.remove(filepath)
log.info("Deleted %s" % filepath)
return True
def get_config():
return json.dumps({"temp_scale": config.temp_scale,
"time_scale_slope": config.time_scale_slope,
"time_scale_profile": config.time_scale_profile,
"kwh_rate": config.kwh_rate,
"currency_type": config.currency_type})
def main():
ip = "0.0.0.0"
port = config.listening_port
log.info("listening on %s:%d" % (ip, port))
server = WSGIServer((ip, port), app,
handler_class=WebSocketHandler)
server.serve_forever()
if __name__ == "__main__":
main()