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Control.py
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Control.py
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# -*- encoding: utf-8 -*-
import json
from Liquidsoap import liq
from Logger import sylog
from models import PlaylistElement, Studio, SyCantMove, session, Media, Action
from Utilities import Utilities
class Control:
sender = None
def __init__(self):
pass
def send_feedback(self, request, result="success", details=None):
"""
Send feedback to Dradis.
"""
if "id" not in request:
request["id"] = None
objmsg = {"type": "feedback", "id": request['id'], "request": request, "result": result}
if details is not None:
objmsg['error_msg'] = details
sylog("%(result)s: %(details)s" % {'result': result, 'details': repr(details)})
if self.sender:
self.sender(objmsg)
def exec_global(self, request):
"""
Execute a global-scoped command.
"""
command = request["command"]
if command == "go back to perm":
liq.set_var("selected", "perm")
liq.send_command("perm-switch.skip")
self.send_feedback(request)
elif command == "rescan":
result = Utilities.rescan()
self.send_feedback(request, result)
elif command == "select":
studio = session.query(Studio).find_by(slug=request["studio"].decode('utf-8'))
if studio is not None:
studio.selected = True
session.add(studio)
session.commit()
liq.set_var("selected", str(studio.slug))
sylog("INFO: Selecting " + studio.slug)
self.send_feedback(request)
else:
self.send_feedback(request, "error", "Unknown studio %s" % request["studio"])
def exec_command(self, request):
"""
Execute a studio-related command.
"""
studio = Studio.find_by(slug=request['studio'])
try:
command = request['command']
flag = request['flag']
if studio is None:
return
if command == "live":
if flag == "on":
studio.jukebox.state = u"stopped"
liq.set_var("%s.jukebox.switch" % studio.slug, False)
liq.set_var("%s.plateau.volume" % studio.slug, 1.0)
elif flag == "off":
liq.set_var("%s.plateau.volume" % studio.slug, 0.0)
liq.set_var("%s.jukebox.volume" % studio.slug, 1.0)
else:
self.send_feedback(request, "error", 'flag should be on or off')
self.send_feedback(request)
elif command == "start jukebox":
studio.jukebox.state = u"playing"
liq.set_var("%s.jukebox.switch" % studio.slug, True)
self.send_feedback(request)
# TODO: Create here a fade-in
#if stack.lastSentStatus and stack.lastSentStatus["mode"] == "live":
# liq.set_var("%s.jukebox.volume" % studio.slug, 0.3)
if studio.jukebox.current_element is not None and \
studio.jukebox.current_element.action is not None and \
studio.jukebox.current_element.action.command == "end show":
# TODO: ORLY ?
self.exec_command({"command": "end show", "studio": studio.slug})
studio.jukebox.current_element.mark_as_done()
studio.jukebox.curpos += 1
studio.mark_as_changed()
self.exec_command({"command": "live", "flag": "off", "studio": studio.slug})
elif command == "start jukebox and live off":
self.exec_command({"command": "start jukebox", "studio": studio.slug})
self.exec_command({"command": "live", "flag": "off", "studio": studio.slug})
self.send_feedback(request)
elif command == "enable recorder":
# TODO Enable a recorder
pass
elif command == "disable recorder":
# TODO Disable a recorder
pass
elif command == "start recorder":
# TODO Start a recorder
pass
elif command == "start recorder":
# TODO Stop a recorder
pass
elif command == "start recording":
# TODO Start all enabled recoders
pass
elif command == "stop recording":
# TODO Stop all enabled recorders
pass
elif command == "start show":
studio.jukebox.state = u"playing"
self.exec_command({"command": "start recording", "studio": studio.slug})
self.exec_global({"command": "select", "studio": studio.slug})
self.exec_command({"command": "start jukebox", "studio": studio.slug})
self.send_feedback(request)
elif command == "end show":
studio.jukebox.state = u"stopped"
liq.set_var("%s.running" % studio.slug, False)
liq.set_var("%s.jukebox.switch" % studio.slug, False)
self.exec_command({"command": "stop recording", "studio": studio.slug})
if studio.selected:
studio.selected = False
self.exec_command({"command": "go back to perm"})
self.send_feedback(request)
elif command == "bed" and flag == "on":
liq.set_var("%s.bed.switch" % studio.slug, True)
liq.send_command("%s-bed-switch.skip" % studio.slug)
self.send_feedback(request)
elif command == "bed" and flag == "off":
liq.set_var("%s.bed.switch" % studio.slug, False)
self.send_feedback(request)
elif command == "skip":
liq.send_command("%s-jukebox-stereo.skip" % studio.slug)
studio.jukebox.current_element.mark_as_done()
studio.jukebox.curpos += 1
self.send_feedback(request)
elif command == "set var":
liq.set_var(request["key"], request["value"])
elif command == "push":
element = PlaylistElement.forge(request["element_type"], int(request["element_id"]))
element.status = u"ready"
studio.jukebox.add_element(element)
self.send_feedback(request)
elif command == "insert":
if "action_id" in request:
element = session.query(Action).get(int(request["action_id"]))
elif "media_id" in request:
element = session.query(Media).get(int(request["media_id"]))
else:
# ERROR
return
element.status = u"ready"
studio.jukebox.insert_element(element, int(request["position"]))
self.send_feedback(request)
elif command == "remove":
element = PlaylistElement.find_by(uid=int(request["element_id"]))
studio.jukebox.remove_element(element)
session.delete(element)
self.send_feedback(request)
elif command == "move":
element = PlaylistElement.find_by(uid=int(request["element_id"]))
studio.jukebox.move_element(element, int(request["position"]))
self.send_feedback(request)
elif command == "debug":
if "action" in request:
if request["action"] == "set position":
studio.jukebox.curpos = int(request["position"])
elif request["action"] == "reload current":
if studio.jukebox.current_element is not None and \
studio.jukebox.current_element.status == "loaded":
studio.jukebox.current_element.status = "ready"
studio.mark_as_changed()
elif request["action"] == "force unselect":
studio.selected = False
else:
self.send_feedback(request, "error", "unknown action %s for debug" % request["action"])
return
else:
self.send_feedback(request, "error", "action is required")
return
self.send_feedback(request)
else:
self.send_feedback(request, "error", "Unknown command '%s', ignored." % command)
sylog("Commande %s inconnue ; ignorée." % command)
except SyCantMove as details:
self.send_feedback(request, "error", details.message)
if studio:
studio.mark_as_changed()
session.add(studio)
session.commit()
def parse_line(self, jsoned):
try:
request = json.loads(jsoned)
except ValueError, e:
sylog(e.message)
sylog("Received a corrupted JSON, ignoring...")
return
if 'command' not in request or 'id' not in request:
self.send_feedback(request, "error", "command and id required")
sylog("INFO: Received %s from %s" % (request['command'], request['id']))
if 'studio' in request:
self.exec_command(request)
else:
self.exec_global(request)