christianandClaude Opus 5.5
b6221e0d63
SC loses lyrics and lights when timecode drops, and the first slide's macro (a communication action to Companion, which sets the look and stage layout) sometimes misses the stage layout. A small LaunchAgent on the ProPresenter Mac (org.waterschurch.prop-guard) watches ProPresenter's own API: a song's timeline that stops mid-song is started again at once (left alone if stopped again right after, or on the last slide), and in a song's first seconds the Stage Display is put on Worship if it is not on a worship layout. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
162 lines
8.0 KiB
Python
162 lines
8.0 KiB
Python
#!/usr/bin/env python3
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"""ProPresenter guard: keeps a song's lyrics (and the cues on its timeline) running and the band's stage display
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on the worship layout, fixing either at once. Runs on the ProPresenter Mac (LaunchAgent org.waterschurch.prop-guard),
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talking only to ProPresenter's own network API on this Mac. Stdlib only.
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Built 2026-10-25 for Southcoast, where timecode sometimes drops out (lyrics and lights stop) and the first slide's
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macro does not always bring the stage display to the worship layout. A song is a presentation with a timeline
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(every song in the plan has one; nothing else does).
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TIMECODE the song's timeline follows the tracks' LTC. When it was running and stops in the middle of the song
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(not on the last slide), the timeline is started again at once from where it stopped, so the lyrics and
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cues carry on; when the LTC comes back, ProPresenter follows it again. Logged with the time it stopped.
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STAGE a few seconds after a song becomes active (its first slide fired), the Stage Display must be on a
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layout whose name has "Worship" in it; if the macro did not get it there, it is set to "Worship".
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Only in the first seconds of a song: a layout someone picks later is left alone.
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Status (for the status panel): ~/Library/Application Support/status-panel/prop-guard.json; log:
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~/Library/Logs/prop-guard.log.
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"""
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import json
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import logging
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import os
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import sys
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import time
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import urllib.error
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import urllib.request
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CFG = {
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"api": "http://127.0.0.1:50098",
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"stage_screen": "Stage Display",
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"song_layout": "Worship", # set when the stage is on none of the "accept" layouts
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"accept": ["worship"], # a layout whose name contains one of these is fine for a song
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"stage_after": 2.5, # seconds after the song starts before the stage is judged
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"stage_window": 12.0, # ... and until when it is put right
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"resume": True, # start a stopped timeline again (False: only log)
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"stopped_for": 1.0, # seconds stopped before it counts (ProPresenter blinks while it seeks)
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"poll": 0.4,
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}
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STATUS = os.path.expanduser("~/Library/Application Support/status-panel/prop-guard.json")
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log = logging.getLogger("prop-guard")
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def api(path, timeout=2.0):
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try:
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with urllib.request.urlopen(CFG["api"] + path, timeout=timeout) as r:
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body = r.read()
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return json.loads(body) if body.strip() else {}
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except (urllib.error.URLError, OSError, ValueError):
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return None
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class Guard:
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def __init__(self, now=time.time):
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self.now = now
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self.song = None # uuid of the active song
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self.started = 0.0
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self.ran = False # its timeline has run (so a stop means the LTC went away)
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self.last_t = None
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self.stopped_at = None
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self.slides = 0
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self.stage_fixed = False
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self.resumed_at = None # when the guard last started the timeline again
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self.hands_off = False # stopped again right after a restart: someone means it, leave this song alone
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self.state = {"started": now(), "timecode_drops": [], "stage_fixes": [], "now": {}}
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def stage(self):
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for m in api("/v1/stage/layout_map") or []:
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if (m.get("screen") or {}).get("name") == CFG["stage_screen"]:
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return m["screen"], m.get("layout") or {}
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return None, {}
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def set_layout(self, screen):
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layouts = api("/v1/stage/layouts") or []
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want = next((l["id"] for l in layouts if l["id"]["name"] == CFG["song_layout"]), None)
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if not want:
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log.warning("STAGE: no layout called %s", CFG["song_layout"])
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return False
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return api("/v1/stage/screen/%s/layout/%s" % (screen["uuid"], want["uuid"])) is not None
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def tick(self):
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now = self.now()
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pres = (api("/v1/presentation/active") or {}).get("presentation")
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if not pres or not pres.get("has_timeline"):
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if self.song:
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log.info("SONG over: %s", self.name)
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self.song = None
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self.state["now"] = {"song": None, "time": now}
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return
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uuid, name = pres["id"]["uuid"], pres["id"]["name"]
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if uuid != self.song:
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self.song, self.name, self.started, self.ran, self.last_t, self.stopped_at = uuid, name, now, False, None, None
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self.stage_fixed, self.resumed_at, self.hands_off = False, None, False
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self.slides = sum(len(g.get("slides") or []) for g in pres.get("groups") or [])
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log.info("SONG %s (%d slides)", name, self.slides)
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tl = api("/v1/presentation/active/timeline") or {}
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running, t = bool(tl.get("is_running")), tl.get("current_time")
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idx = (api("/v1/presentation/slide_index") or {}).get("presentation_index") or {}
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slide = idx.get("index")
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at_end = slide is not None and self.slides and slide >= self.slides - 1
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if running:
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if not self.ran:
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log.info("TIMECODE running in %s at %.1f s", name, t or 0)
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self.ran, self.stopped_at = True, None
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elif self.ran and not at_end and not self.hands_off:
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self.stopped_at = self.stopped_at or now
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if self.resumed_at and now - self.resumed_at < 5:
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self.hands_off = True # it was stopped again at once: an operator, not the LTC
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log.info("TIMECODE: %s stopped again right after it was started: left alone for this song", name)
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elif now - self.stopped_at >= CFG["stopped_for"]:
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drop = {"song": name, "at": t, "slide": slide, "time": now}
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if CFG["resume"]:
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ok = api("/v1/presentation/active/timeline/play") is not None
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after = api("/v1/presentation/active/timeline") or {}
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drop["resumed"] = bool(ok and after.get("is_running"))
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self.resumed_at = now
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log.warning("TIMECODE DROPPED in %s at %.2f s (slide %s)%s", name, t or 0, slide,
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"" if not CFG["resume"] else (": timeline started again" if drop.get("resumed") else ": COULD NOT START IT"))
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self.state["timecode_drops"] = (self.state["timecode_drops"] + [drop])[-20:]
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self.stopped_at = None
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self.last_t = t
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screen, layout = self.stage()
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lname = layout.get("name") or ""
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ok_layout = any(a in lname.lower() for a in CFG["accept"])
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if screen and not ok_layout and CFG["stage_after"] <= now - self.started <= CFG["stage_window"] and not self.stage_fixed:
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fixed = self.set_layout(screen)
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self.stage_fixed = True
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fix = {"song": name, "was": lname, "time": now, "fixed": fixed}
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self.state["stage_fixes"] = (self.state["stage_fixes"] + [fix])[-20:]
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log.warning("STAGE: %s started with the stage on %r: %s", name, lname, "set to " + CFG["song_layout"] if fixed else "COULD NOT SET IT")
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self.state["now"] = {"song": name, "running": running, "t": t, "slide": slide, "stage": lname, "time": now}
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def save(self):
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try:
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os.makedirs(os.path.dirname(STATUS), exist_ok=True)
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with open(STATUS + ".tmp", "w") as f:
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json.dump(self.state, f)
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os.replace(STATUS + ".tmp", STATUS)
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except OSError:
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pass
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def main():
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if len(sys.argv) > 1 and os.path.exists(sys.argv[1]):
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CFG.update(json.load(open(sys.argv[1])))
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logging.basicConfig(filename=os.path.expanduser("~/Library/Logs/prop-guard.log"), level=logging.INFO,
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format="%(asctime)s %(levelname)s %(message)s")
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log.info("prop guard started: %s", json.dumps(CFG))
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g, saved = Guard(), 0.0
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while True:
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try:
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g.tick()
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except Exception: # noqa: BLE001 - keep guarding
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log.exception("tick failed")
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if time.time() - saved > 2:
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g.save()
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saved = time.time()
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time.sleep(CFG["poll"])
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if __name__ == "__main__":
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main()
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