light9 Changeset - 3d58c1c78f1f

Changeset - 3d58c1c78f1f

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drewp@bigasterisk.com - 20 months ago 2023-05-31 20:12:06
drewp@bigasterisk.com

port ascoltami from cyclone to starlette

4 files changed with 161 insertions and 170 deletions:

bin/ascoltami

light9/ascoltami/main.py

light9/ascoltami/main_test.py

light9/ascoltami/webapp.py

114

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bin/ascoltami

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 #!/bin/zsh
 pnpm exec vite -c light9/ascoltami/vite.config.ts &
-pdm run python light9/ascoltami/main.py
+pdm run uvicorn light9.ascoltami.main:app --host 0.0.0.0 --port 8206 --no-access-log
 wait

light9/ascoltami/main.py

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@@ @@ -5,24 +5,29 @@ import sys @@
 from typing import cast
 import gi
 from light9.run_local import log
 from rdflib import URIRef
 from starlette.applications import Starlette
 from starlette.routing import Route
 from starlette_exporter import PrometheusMiddleware, handle_metrics
 from twisted.internet import reactor
 from twisted.internet.interfaces import IReactorCore
 from light9.run_local import log
 gi.require_version('Gst', '1.0')
 gi.require_version('Gtk', '3.0')
 from gi.repository import Gst # type: ignore
 from gi.repository import Gst  # type: ignore
 from light9 import networking, showconfig
 from light9.ascoltami import webapp
 from light9.ascoltami.player import Player
 from light9.ascoltami.playlist import NoSuchSong, Playlist
 from light9.ascoltami.webapp import makeWebApp, songLocation, songUri
 reactor = cast(IReactorCore, reactor)
-class App:
+class Ascoltami:
     def __init__(self, graph, show):
         self.graph = graph
@@ @@ -34,35 +39,45 @@ class App: @@
         self.player.pause()
         self.player.seek(0)
         thisSongUri = songUri(graph, URIRef(song))
+        thisSongUri = webapp.songUri(self.graph, URIRef(song))
         try:
             nextSong = self.playlist.nextSong(thisSongUri)
         except NoSuchSong:  # we're at the end of the playlist
             return
         self.player.setSong(songLocation(graph, nextSong), play=False)
+        self.player.setSong(webapp.songLocation(self.graph, nextSong), play=False)
-if __name__ == "__main__":
+def main():
     Gst.init(None)
     parser = optparse.OptionParser()
     parser.add_option('--show', help='show URI, like http://light9.bigasterisk.com/show/dance2008', default=showconfig.showUri())
     parser.add_option("-v", "--verbose", action="store_true", help="logging.DEBUG")
     parser.add_option("--twistedlog", action="store_true", help="twisted logging")
     (options, args) = parser.parse_args()
     log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
     graph = showconfig.getGraph()
     asco = Ascoltami(graph, showconfig.showUri())
     if not options.show:
         raise ValueError("missing --show http://...")
     app = Starlette(
         debug=True,
         routes=[
             Route("/config", webapp.get_config),
             Route("/time", webapp.get_time, methods=["GET"]),
             Route("/time", webapp.post_time, methods=["POST"]),
             Route("/time/stream", webapp.timeStream),
             Route("/song", webapp.post_song, methods=["POST"]),
             Route("/songs", webapp.get_songs),
             Route("/seekPlayOrPause", webapp.post_seekPlayOrPause),
             Route("/output", webapp.post_output, methods=["POST"]),
             Route("/go", webapp.post_goButton, methods=["POST"]),
         ],
+    )
     graph = showconfig.getGraph()
     app = App(graph, URIRef(options.show))
     if options.twistedlog:
         from twisted.python import log as twlog
         twlog.startLogging(sys.stderr)
     reactor.listenTCP(networking.musicPlayer.port, makeWebApp(app))
     log.info("listening on %s" % networking.musicPlayer.port)
     reactor.run()
     app.add_middleware(PrometheusMiddleware)
     app.add_route("/metrics", handle_metrics)
     app.state.graph = graph
     app.state.show = asco.show
     app.state.player = asco.player
     return app
 app = main()

light9/ascoltami/main_test.py

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@@ new file 100644 @@
 from light9.run_local import log
 def test_import():
     import light9.ascoltami.main
@@ \ No newline at end of file @@

light9/ascoltami/webapp.py

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 import asyncio
 import json
 import logging
 import socket
@@ @@ -5,15 +6,14 @@ import subprocess @@
 import time
 from typing import cast
 import cyclone.web
 import cyclone.websocket
 from cycloneerr import PrettyErrorHandler
 from light9.metrics import metricsRoute
 from rdflib import RDFS, Graph, URIRef
 from light9.ascoltami.player import Player
 from sse_starlette.sse import EventSourceResponse
 from starlette.requests import Request
 from starlette.responses import JSONResponse, PlainTextResponse
 from light9.namespaces import L9
 from light9.showconfig import getSongsFromShow, showUri, songOnDisk
 from rdflib import RDFS, Graph, URIRef
 from twisted.internet import reactor
 from twisted.internet.interfaces import IReactorTime
 log = logging.getLogger()
 _songUris = {}  # locationUri : song
@@ @@ -29,20 +29,16 @@ def songUri(graph, locationUri): @@
     return _songUris[locationUri]
 class config(cyclone.web.RequestHandler):
     def get(self):
         self.set_header("Content-Type", "application/json")
         self.write(
             json.dumps(
                 dict(
                     host=socket.gethostname(),
                     show=str(showUri()),
                     times={
                         # these are just for the web display. True values are on Player.__init__
                         'intro': 4,
                         'post': 0
                     })))
 async def get_config(request: Request) -> JSONResponse:
     return JSONResponse(
         dict(
             host=socket.gethostname(),
             show=str(showUri()),
             times={
                 # these are just for the web display. True values are on Player.__init__
                 'intro': 4,
                 'post': 0
             }))
 def playerSongUri(graph, player):
@@ @@ -74,146 +70,119 @@ def currentState(graph, player): @@
+    }
 class timeResource(PrettyErrorHandler, cyclone.web.RequestHandler):
     def get(self):
         player = self.settings.app.player
         graph = self.settings.app.graph
         self.set_header("Content-Type", "application/json")
         self.write(json.dumps(currentState(graph, player)))
     def post(self):
         """
         post a json object with {pause: true} or {resume: true} if you
         want those actions. Use {t: <seconds>} to seek, optionally
         with a pause/resume command too.
         """
         params = json.loads(self.request.body)
         player = self.settings.app.player
         if params.get('pause', False):
             player.pause()
         if params.get('resume', False):
             player.resume()
         if 't' in params:
             player.seek(params['t'])
         self.set_header("Content-Type", "text/plain")
         self.write("ok")
 async def get_time(request: Request) -> JSONResponse:
     player = cast(Player, request.app.state.player)
     graph = cast(Graph, request.app.state.graph)
     return JSONResponse(currentState(graph, player))
 class timeStreamResource(cyclone.websocket.WebSocketHandler):
     def connectionMade(self, *args, **kwargs) -> None:
         self.lastSent = None
         self.lastSentTime = 0.
         self.loop()
     def loop(self):
         now = time.time()
         msg = currentState(self.settings.app.graph, self.settings.app.player)
         if msg != self.lastSent or now > self.lastSentTime + 2:
             # self.sendMessage(json.dumps(msg))
             self.lastSent = msg
             self.lastSentTime = now
         if self.transport.connected:
             cast(IReactorTime, reactor).callLater(.2, self.loop) # type: ignore
     def connectionLost(self, reason):
         log.info("bye ws client %r: %s", self, reason)
 async def post_time(request: Request) -> PlainTextResponse:
     """
     post a json object with {pause: true} or {resume: true} if you
     want those actions. Use {t: <seconds>} to seek, optionally
     with a pause/resume command too.
     """
     params = await request.json()
     player = cast(Player, request.app.state.player)
     if params.get('pause', False):
         player.pause()
     if params.get('resume', False):
         player.resume()
     if 't' in params:
         player.seek(params['t'])
     return PlainTextResponse("ok")
 class songs(PrettyErrorHandler, cyclone.web.RequestHandler):
     def get(self):
         graph = cast(Graph, self.settings.app.graph)
         songs = getSongsFromShow(graph, self.settings.app.show)
 async def timeStream(request: Request):
     graph = cast(Graph, request.app.state.graph)
     player = cast(Player, request.app.state.player)
     async def event_generator():
         last_sent = None
         last_sent_time = 0.0
         self.set_header("Content-Type", "application/json")
         self.write(json.dumps({
             "songs": [
                 {  #
                     "uri": s,
                     "path": graph.value(s, L9['songFilename']),
                     "label": graph.value(s, RDFS.label)
                 } for s in songs
+            ]
         }))
         while True:
             now = time.time()
             msg = currentState(graph, player)
             if msg != last_sent or now > last_sent_time + 2:
                 event_data = json.dumps(msg)
                 yield event_data
                 last_sent = msg
                 last_sent_time = now
             await asyncio.sleep(0.2)
     return EventSourceResponse(event_generator())
 class songResource(PrettyErrorHandler, cyclone.web.RequestHandler):
 async def get_songs(request: Request) -> JSONResponse:
     graph = cast(Graph, request.app.state.graph)
     songs = getSongsFromShow(graph, request.app.state.show)
     def post(self):
         """post a uri of song to switch to (and start playing)"""
         graph = self.settings.app.graph
     songs_data = [
         {  #
             "uri": s,
             "path": graph.value(s, L9['songFilename']),
             "label": graph.value(s, RDFS.label)
         } for s in songs
+    ]
         self.settings.app.player.setSong(songLocation(graph, URIRef(self.request.body.decode('utf8'))))
         self.set_header("Content-Type", "text/plain")
         self.write("ok")
     return JSONResponse({"songs": songs_data})
 class seekPlayOrPause(PrettyErrorHandler, cyclone.web.RequestHandler):
     """curveCalc's ctrl-p or a vidref scrub"""
     def post(self):
         player = self.settings.app.player
 async def post_song(request: Request) -> PlainTextResponse:
     """post a uri of song to switch to (and start playing)"""
     graph = cast(Graph, request.app.state.graph)
     player = cast(Player, request.app.state.player)
         data = json.loads(self.request.body)
         if 'scrub' in data:
             player.pause()
             player.seek(data['scrub'])
             return
         if 'action' in data:
             if data['action'] == 'play':
                 player.resume()
             elif data['action'] == 'pause':
                 player.pause()
             else:
                 raise NotImplementedError
             return
         if player.isPlaying():
             player.pause()
         else:
             player.seek(data['t'])
             player.resume()
     song_uri = URIRef((await request.body()).decode('utf8'))
     player.setSong(songLocation(graph, song_uri))
     return PlainTextResponse("ok")
 class output(PrettyErrorHandler, cyclone.web.RequestHandler):
 async def post_seekPlayOrPause(request: Request) -> PlainTextResponse:
     """curveCalc's ctrl-p or a vidref scrub"""
     player = cast(Player, request.app.state.player)
     def post(self):
         d = json.loads(self.request.body)
         subprocess.check_call(["bin/movesinks", str(d['sink'])])
     data = await request.json()
     if 'scrub' in data:
         player.pause()
         player.seek(data['scrub'])
         return PlainTextResponse("ok")
     if 'action' in data:
         if data['action'] == 'play':
             player.resume()
         elif data['action'] == 'pause':
             player.pause()
         else:
             raise NotImplementedError
         return PlainTextResponse("ok")
     if player.isPlaying():
         player.pause()
     else:
         player.seek(data['t'])
         player.resume()
     return PlainTextResponse("ok")
 class goButton(PrettyErrorHandler, cyclone.web.RequestHandler):
     def post(self):
         """
         if music is playing, this silently does nothing.
         """
         player = self.settings.app.player
         if player.isAutostopped():
             player.resume()
         elif player.isPlaying():
             pass
         else:
             player.resume()
         self.set_header("Content-Type", "text/plain")
         self.write("ok")
 async def post_output(request: Request) -> PlainTextResponse:
     d = await request.json()
     subprocess.check_call(["bin/movesinks", str(d['sink'])])
     return PlainTextResponse("ok")
 def makeWebApp(app):
     return cyclone.web.Application(handlers=[
         (r"/config", config),
         (r"/time", timeResource),
         (r"/time/stream", timeStreamResource),
         (r"/song", songResource),
         (r"/songs", songs),
         (r"/seekPlayOrPause", seekPlayOrPause),
         (r"/output", output),
         (r"/go", goButton),
         metricsRoute(),
     ],
                                    app=app)
 async def post_goButton(request: Request) -> PlainTextResponse:
     """
     if music is playing, this silently does nothing.
     """
     player = cast(Player, request.app.state.player)
     if player.isAutostopped():
         player.resume()
     elif player.isPlaying():
         pass
     else:
         player.resume()
     return PlainTextResponse("ok")

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