378 lines
12 KiB
Python
378 lines
12 KiB
Python
"""
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"Conscript reporting"
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This server controls all hugveys and the processing of their narratives. It exposes itself for control to the panopticon server.
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"""
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import asyncio
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import logging
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import threading
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import time
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import yaml
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import zmq
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from zmq.asyncio import Context
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from hugvey.communication import getTopic, zmqSend, zmqReceive
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from hugvey.panopticon import Panopticon
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from hugvey.story import Story
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from hugvey.voice.google import GoogleVoiceClient
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from hugvey.voice.player import Player
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from hugvey.voice.streamer import AudioStreamer
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import queue
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import os
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logger = logging.getLogger("command")
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# def exceptionEmitter(a):
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# print(a)
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# def decorate(func):
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# print('decorate')
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# async def call(*args, **kwargs):
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# print('call')
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# # pre(func, *args, **kwargs)
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# try:
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# result = await func(*args, **kwargs)
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# except Exception as e:
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# logger.critical(e, "in", func)
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# raise e
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# # post(func, *args, **kwargs)
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# return result
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# return call
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# return decorate
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class CentralCommand(object):
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"""docstring for CentralCommand."""
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def __init__(self, debug_mode=False):
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self.debug = debug_mode
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self.eventQueue = asyncio.Queue()
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self.commandQueue = asyncio.Queue()
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self.isRunning = threading.Event()
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self.hugveys = {}
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self.ctx = Context.instance()
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self.hugveyLock = asyncio.Lock()
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self.start_time = time.time()
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def loadConfig(self, filename):
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if hasattr(self, 'config'):
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raise Exception("Overriding config not supported yet")
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with open(filename, 'r') as fp:
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logger.debug('Load config from {}'.format(filename))
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self.config = yaml.safe_load(fp)
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self.hugvey_ids = [i + 1 for i in range(self.config['hugveys'])]
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# load languages:
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self.languages = {}
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for lang in self.config['languages']:
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lang_filename = os.path.join(self.config['web']['files_dir'], lang['file'])
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with open(lang_filename, 'r') as fp:
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self.languages[lang['code']] = yaml.load(fp)
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self.panopticon = Panopticon(self, self.config)
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def getHugveyStatus(self, hv_id):
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status = {'id': hv_id}
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if not hv_id in self.hugveys:
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status['status'] = 'off'
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return status
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hv = self.hugveys[hv_id]
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status['status'] = 'running' if hv.isRunning.is_set() else 'paused'
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status['language'] = hv.language_code
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status['msg'] = hv.story.currentMessage.id
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status['counts'] = hv.story.getStoryCounts()
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status['finished'] = hv.story.isFinished()
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return status
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def getStatusSummary(self):
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status = {
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'uptime': time.time() - self.start_time,
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'languages': self.config['languages'],
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'hugveys': [],
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}
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for hv_id in self.hugvey_ids:
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status['hugveys'].append(self.getHugveyStatus(hv_id))
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return status
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def commandHugvey(self, hv_id, msg):
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"""
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prepare command to be picked up by the sender
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"""
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if threading.current_thread().getName() != 'MainThread':
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# Threading nightmares! Adding to queue from other thread/loop (not sure which is the isse)
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# won't trigger asyncios queue.get() so we have to do this thread
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# safe, in the right loop
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self.loop.call_soon_threadsafe(self._queueCommand, hv_id, msg)
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else:
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self._queueCommand(hv_id, msg)
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def _queueCommand(self, hv_id, msg):
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self.commandQueue.put_nowait((hv_id, msg))
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# if msg['action'] == 'play':
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# self.commandQueue.put_nowait((hv_id, {
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# 'action': 'play',
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# 'msg': "This is an interrption",
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# 'id': 'test',
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# }))
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def commandAllHugveys(self, msg):
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for hv_id in self.hugvey_ids:
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self.commandHugvey(hv_id, msg)
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def commandAllActiveHugveys(self, msg):
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for hv_id in self.hugveys:
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self.commandHugvey(hv_id, msg)
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async def commandSender(self):
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s = self.ctx.socket(zmq.PUB)
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s.bind(self.config['events']['cmd_address'])
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self.commandAllHugveys({'action': 'show_yourself'})
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# sleep to allow pending connections to connect
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await asyncio.sleep(1)
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logger.info("Ready to publish commands on: {}".format(
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self.config['events']['cmd_address']))
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logger.debug('Already {} items in queue'.format(
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self.commandQueue.qsize()))
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while self.isRunning.is_set():
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hv_id, cmd = await self.commandQueue.get()
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logger.info('Got command to send: {} {}'.format(hv_id, cmd))
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zmqSend(s, hv_id, cmd)
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logger.warn('Stopping command sender')
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s.close()
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async def instantiateHugvey(self, hugvey_id, msg):
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'''
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Start a HugveyState, according to a show_yourself reply
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'event': 'connection',
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'id': self.hugvey_id,
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'host': socket.gethostname(),
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'ip': self.getIp(),
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'''
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async with self.hugveyLock: # lock to prevent duplicates on creation
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if not hugvey_id in self.hugveys:
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logger.info(f'Instantiate hugvey #{hugvey_id}')
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print('a')
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h = HugveyState(hugvey_id, self)
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print('a')
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h.config(msg['host'], msg['ip'])
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print('b')
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self.hugveys[hugvey_id] = h
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thread = threading.Thread(
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target=h.start, name=f"hugvey#{hugvey_id}")
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thread.start()
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print('c')
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else:
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logger.info(f'Reconfigure hugvey #{hugvey_id}')
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# (re)configure exisitng hugveys
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h.config(msg['host'], msg['ip'])
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async def eventListener(self):
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s = self.ctx.socket(zmq.SUB)
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s.bind(self.config['events']['listen_address'])
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logger.info("Listen for events on: {}".format(
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self.config['events']['listen_address']))
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for id in self.hugvey_ids:
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s.subscribe(getTopic(id))
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while self.isRunning.is_set():
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try:
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hugvey_id, msg = await zmqReceive(s)
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if hugvey_id not in self.hugvey_ids:
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logger.critical(
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"Message from alien Hugvey: {}".format(hugvey_id))
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continue
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elif hugvey_id not in self.hugveys:
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if msg['event'] == 'connection':
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# Create a hugvey
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await self.instantiateHugvey(hugvey_id, msg)
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else:
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logger.warning(
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"Message from uninstantiated Hugvey {}".format(hugvey_id))
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logger.debug("Message contains: {}".format(msg))
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continue
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else:
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await self.hugveys[hugvey_id].eventQueue.put(msg)
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except Exception as e:
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logger.critical(f"Exception while running event loop:")
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logger.exception(e)
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def start(self):
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self.isRunning.set()
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self.loop = asyncio.get_event_loop()
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# self.panopticon_loop = asyncio.new_event_loop()
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self.tasks = {} # collect tasks so we can cancel in case of error
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self.tasks['eventListener'] = self.loop.create_task(
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self.eventListener())
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self.tasks['commandSender'] = self.loop.create_task(
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self.commandSender())
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# we want the web interface in a separate thread
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self.panopticon_thread = threading.Thread(
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target=self.panopticon.start, name="Panopticon")
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self.panopticon_thread.start()
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self.loop.run_forever()
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def stop(self):
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self.isRunning.clear()
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class HugveyState(object):
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"""Represents the state of a Hugvey client on the server.
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Manages server connections & voice parsing etc.
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"""
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def __init__(self, id: int, command: CentralCommand):
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self.id = id
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self.command = command
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self.logger = logging.getLogger(f"hugvey{self.id}")
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self.loop = asyncio.new_event_loop()
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self.isConfigured = False
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self.isRunning = threading.Event()
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self.eventQueue = None
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self.language_code = 'en-GB'
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self.story = Story(self)
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self.story.setStoryData(self.command.languages[self.language_code])
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def config(self, hostname, ip):
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self.ip = ip
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self.hostname = hostname
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self.logger.info(
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f"Hugvey {self.id} at {self.ip}, host: {self.hostname}")
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if self.isConfigured == True:
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# a reconfiguration/reconnection
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pass
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self.isConfigured = True
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def sendCommand(self, msg):
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"""
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Send message or command to hugvey
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@param msg: The message to be sent. Probably a dict()
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"""
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self.command.commandHugvey(self.id, msg)
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def start(self):
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"""
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Start the tasks
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"""
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tasks = asyncio.gather(
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self.catchException(self.processAudio()),
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self.catchException(self.handleEvents()),
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self.catchException(self.playStory()),
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loop=self.loop)
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self.loop.run_until_complete(tasks)
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self.isRunning.set()
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async def catchException(self, awaitable):
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try:
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await awaitable
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except Exception as e:
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logger.exception(e)
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logger.critical(f"Hugvey restart required but not implemented yet")
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# TODO: restart
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def queueEvent(self, msg):
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if 'time' not in msg:
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# add time, so we can track time passed
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msg['time'] = time.time()
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if not self.eventQueue:
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self.logger.critical("No event queue to put {}".format(msg))
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else:
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# Allow for both the Hugvey Command, or the Story handle the event.
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self.eventQueue.put_nowait(msg)
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self.story.events.append(msg)
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async def handleEvents(self):
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self.eventQueue = asyncio.Queue() # start event queue here, to avoid loop issues
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while self.command.isRunning.is_set():
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event = await self.eventQueue.get()
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self.logger.info("Received: {}".format(event))
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if event['event'] == 'language':
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self.setLanguage(event['code'])
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if event['event'] == 'pause':
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self.pause()
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if event['event'] == 'restart':
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self.restart()
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if event['event'] == 'resume':
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self.resume()
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self.eventQueue = None
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def setLanguage(self, language_code):
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if language_code not in self.command.languages:
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raise Exception("Invalid language {}".format(language_code))
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self.language_code = language_code
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self.google.setLanguage(language_code)
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self.story.reset()
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self.story.setStoryData(self.command.languages[language_code])
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def pause(self):
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self.google.pause()
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self.story.pause()
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self.isRunning.clear()
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def resume(self):
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self.google.resume()
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self.story.resume()
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self.isRunning.set()
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def restart(self):
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self.story.reset()
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self.resume()
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self.isRunning.set()
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async def playStory(self):
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await self.story.start()
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async def processAudio(self):
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'''
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Start the audio streamer service
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'''
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self.logger.info("Start audio stream")
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streamer = AudioStreamer(
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self.command.config['voice']['chunk'],
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self.ip,
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int(self.command.config['voice']['port']))
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if self.command.debug:
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self.logger.warn("Debug on: Connecting Audio player")
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self.player = Player(
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self.command.config['voice']['src_rate'], self.command.config['voice']['out_rate'])
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streamer.addConsumer(self.player)
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self.logger.info("Start Speech")
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self.google = GoogleVoiceClient(
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hugvey=self,
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src_rate=self.command.config['voice']['src_rate'],
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credential_file=self.command.config['voice']['google_credentials'],
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language_code=self.language_code
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)
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streamer.addConsumer(self.google)
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await streamer.run()
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