316 lines
12 KiB
Python
316 lines
12 KiB
Python
import datetime
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from apscheduler.schedulers.background import BackgroundScheduler
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from sqlalchemy import or_
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from models import Job, Recording, get_session
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DAY_MAP = {
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"mo": 1, "mon": 1, "montag": 1,
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"di": 2, "tue": 2, "dienstag": 2,
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"mi": 3, "wed": 3, "mittwoch": 3,
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"do": 4, "thu": 4, "donnerstag": 4,
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"fr": 5, "fri": 5, "freitag": 5,
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"sa": 6, "sat": 6, "samstag": 6,
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"so": 7, "sun": 7, "sonntag": 7,
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}
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def _day_to_num(day: str) -> int:
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return DAY_MAP.get(day.lower().strip(), 0)
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def _matches_day(today_num: int, schedule: str) -> bool:
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if schedule.strip() == "*":
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return True
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for entry in schedule.split(","):
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entry = entry.strip()
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if "-" in entry:
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parts = entry.split("-", 1)
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start = _day_to_num(parts[0])
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end = _day_to_num(parts[1])
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if start <= end:
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if start <= today_num <= end:
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return True
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else:
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if today_num >= start or today_num <= end:
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return True
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else:
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if _day_to_num(entry) == today_num:
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return True
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return False
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def _time_to_minutes(t: str) -> int:
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parts = t.split(":")
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return int(parts[0]) * 60 + int(parts[1])
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def _in_time_window(now_time: str, start: str, stop: str) -> bool:
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now_min = _time_to_minutes(now_time)
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start_min = _time_to_minutes(start)
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stop_min = _time_to_minutes(stop)
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if start_min <= stop_min:
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return start_min <= now_min < stop_min
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else:
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return now_min >= start_min or now_min < stop_min
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def _apply_buffers(job: dict) -> dict:
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eff = dict(job)
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pre = job.get("pre_buffer", 0) or 0
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post = job.get("post_buffer", 0) or 0
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if pre > 0 and eff.get("schedule_start"):
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m = _time_to_minutes(eff["schedule_start"]) - pre
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if m < 0:
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m += 1440
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eff["schedule_start"] = f"{m // 60:02d}:{m % 60:02d}"
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if post > 0 and eff.get("schedule_stop"):
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m = _time_to_minutes(eff["schedule_stop"]) + post
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if m >= 1440:
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m -= 1440
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eff["schedule_stop"] = f"{m // 60:02d}:{m % 60:02d}"
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return eff
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class StreamScheduler:
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def __init__(self, recorder):
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self.recorder = recorder
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self._scheduler = BackgroundScheduler()
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self._started_keys: set[str] = set()
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def start(self):
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self._scheduler.add_job(self._tick, "interval", seconds=30, id="scheduler_tick",
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replace_existing=True, max_instances=1)
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self._scheduler.add_job(self.recorder.check_scheduled_stops, "interval", seconds=10,
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id="check_stops", replace_existing=True, max_instances=1)
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self._scheduler.start()
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def stop(self):
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self._scheduler.shutdown(wait=False)
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def _occurrence_key(self, job: Job) -> str:
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today = datetime.date.today().isoformat()
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if job.schedule_once:
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today = job.schedule_date or today
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return f"{job.id}|{job.schedule_once}|{today}|{job.schedule_start}"
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def _original_occ_key(self, job: dict, now: datetime.datetime | None = None) -> str:
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now = now or datetime.datetime.now()
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today_date = now.strftime("%Y-%m-%d")
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date = today_date if not job["schedule_once"] else job["schedule_date"]
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return f"{job['id']}|{job['schedule_once']}|{date}|{job['schedule_start']}"
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def _schedule_state(self, job: dict, now: datetime.datetime | None = None) -> dict:
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now = now or datetime.datetime.now()
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today_num = now.isoweekday()
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today_date = now.strftime("%Y-%m-%d")
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now_time = now.strftime("%H:%M")
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occ_key = (
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f"{job['id']}|{job['schedule_once']}|"
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f"{today_date if not job['schedule_once'] else job['schedule_date']}|"
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f"{job['schedule_start']}"
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)
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is_today = False
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multi_day = bool(job.get("schedule_end_date") and job["schedule_once"])
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if job["schedule_once"]:
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if job["schedule_date"] == today_date:
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is_today = True
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else:
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if _matches_day(today_num, job["schedule_days"] or "*"):
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is_today = True
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in_window = False
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is_cross_midnight = False
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if is_today:
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if multi_day:
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now_min = _time_to_minutes(now_time)
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start_min = _time_to_minutes(job["schedule_start"])
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in_window = now_min >= start_min
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elif job["schedule_stop"]:
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start_min = _time_to_minutes(job["schedule_start"])
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stop_min = _time_to_minutes(job["schedule_stop"])
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if stop_min <= start_min:
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is_cross_midnight = True
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now_min = _time_to_minutes(now_time)
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in_window = now_min >= start_min
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else:
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in_window = _in_time_window(now_time, job["schedule_start"], job["schedule_stop"])
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else:
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now_min = _time_to_minutes(now_time)
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start_min = _time_to_minutes(job["schedule_start"])
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in_window = now_min >= start_min
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return {
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"occ_key": occ_key,
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"in_window": in_window,
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"multi_day": multi_day,
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"is_cross_midnight": is_cross_midnight,
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}
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def suppress_current_occurrence(self, job_id: int) -> bool:
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session = get_session()
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try:
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j = session.query(Job).filter_by(id=job_id).first()
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if not j or not j.schedule_enabled or not j.schedule_start:
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return False
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job = {
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"id": j.id,
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"schedule_once": j.schedule_once,
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"schedule_date": j.schedule_date,
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"schedule_days": j.schedule_days,
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"schedule_start": j.schedule_start,
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"schedule_stop": j.schedule_stop,
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"schedule_end_date": j.schedule_end_date,
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"pre_buffer": j.pre_buffer or 0,
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"post_buffer": j.post_buffer or 0,
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}
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finally:
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session.close()
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occ_key = self._original_occ_key(job)
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eff_job = _apply_buffers(job)
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state = self._schedule_state(eff_job)
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if not state["in_window"]:
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return False
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self._started_keys.add(occ_key)
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return True
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def _occurrence_start_utc(self, job: dict, now: datetime.datetime) -> datetime.datetime | None:
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date_text = job["schedule_date"] if job["schedule_once"] else now.strftime("%Y-%m-%d")
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try:
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local_start = datetime.datetime.strptime(
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f"{date_text} {job['schedule_start']}",
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"%Y-%m-%d %H:%M",
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)
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except (TypeError, ValueError):
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return None
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local_utc_offset = datetime.datetime.now() - datetime.datetime.utcnow()
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return local_start - local_utc_offset
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def _has_recording_for_occurrence(self, job: dict, now: datetime.datetime) -> bool:
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occurrence_start = self._occurrence_start_utc(job, now)
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if occurrence_start is None:
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return False
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session = get_session()
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try:
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return session.query(Recording).filter(
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Recording.job_id == job["id"],
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or_(
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Recording.started_at >= occurrence_start,
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Recording.stopped_at >= occurrence_start,
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),
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).first() is not None
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finally:
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session.close()
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def _is_job_recording(self, job_id: int) -> bool:
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session = get_session()
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try:
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return session.query(Recording).filter(
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Recording.job_id == job_id,
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Recording.status.in_(["running", "starting"]),
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).first() is not None
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finally:
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session.close()
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def _get_active_scheduled_recording_for_job(self, job_id: int):
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session = get_session()
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try:
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rec = session.query(Recording).filter(
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Recording.job_id == job_id,
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Recording.status.in_(["running", "starting"]),
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Recording.is_scheduled == True,
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).first()
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return rec.id if rec else None
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finally:
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session.close()
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def _tick(self):
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now = datetime.datetime.now()
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session = get_session()
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try:
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jobs = session.query(Job).filter_by(schedule_enabled=True).all()
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job_list = []
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for j in jobs:
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job_list.append({
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"id": j.id, "name": j.name, "stream_url": j.stream_url,
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"stream_type": j.stream_type, "output_format": j.output_format,
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"max_duration": j.max_duration, "extra_ffmpeg_args": j.extra_ffmpeg_args,
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"segment_duration": j.segment_duration,
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"schedule_once": j.schedule_once, "schedule_date": j.schedule_date,
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"schedule_days": j.schedule_days, "schedule_start": j.schedule_start,
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"schedule_stop": j.schedule_stop, "schedule_end_date": j.schedule_end_date,
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"pre_buffer": j.pre_buffer or 0, "post_buffer": j.post_buffer or 0,
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"description": j.description,
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"ntfy_enabled": j.ntfy_enabled,
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"plik_enabled": j.plik_enabled,
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"delete_after_upload": j.delete_after_upload,
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})
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finally:
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session.close()
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for job in job_list:
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if not job["schedule_start"]:
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continue
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occ_key = self._original_occ_key(job, now)
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eff_job = _apply_buffers(job)
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state = self._schedule_state(eff_job, now)
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in_window = state["in_window"]
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if in_window:
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if (
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occ_key not in self._started_keys
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and not self._is_job_recording(job["id"])
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and not self._has_recording_for_occurrence(job, now)
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):
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duration = job["max_duration"]
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if not duration and eff_job["schedule_stop"]:
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if state["multi_day"]:
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start_dt = datetime.datetime.strptime(
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f"{job['schedule_date']} {eff_job['schedule_start']}", "%Y-%m-%d %H:%M")
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end_dt = datetime.datetime.strptime(
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f"{job['schedule_end_date']} {eff_job['schedule_stop']}", "%Y-%m-%d %H:%M")
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duration = max(0, int((end_dt - start_dt).total_seconds()))
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else:
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start_min = _time_to_minutes(eff_job["schedule_start"])
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stop_min = _time_to_minutes(eff_job["schedule_stop"])
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if stop_min > start_min:
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duration = (stop_min - start_min) * 60
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else:
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duration = (1440 - start_min + stop_min) * 60
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self.recorder.start_recording(
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job_id=job["id"],
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name=job["name"],
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stream_url=job["stream_url"],
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stream_type=job["stream_type"],
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output_format=job["output_format"] or "",
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max_duration=duration,
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extra_ffmpeg_args=job["extra_ffmpeg_args"] or "",
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segment_duration=job["segment_duration"],
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is_scheduled=True,
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description=job.get("description", ""),
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ntfy_enabled=job.get("ntfy_enabled", False),
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plik_enabled=job.get("plik_enabled", False),
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delete_after_upload=job.get("delete_after_upload", False),
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)
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self._started_keys.add(occ_key)
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else:
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if (
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not state["multi_day"]
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and not state["is_cross_midnight"]
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and eff_job["schedule_stop"]
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and self._is_job_recording(job["id"])
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):
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rec_id = self._get_active_scheduled_recording_for_job(job["id"])
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if rec_id:
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self.recorder.stop_recording(rec_id)
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self._started_keys.discard(occ_key)
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