Grotti 3.0.0: Aufträge, Wartung, SSE, Ausschuss-Dialog, UI-Umbau.

Migrationen 003–009, Kundaufträge mit Lieferschein, Abräumen mit Urteil,
ntfy/Backup/Zeitfenster, Live-Stream und Mobile-Mehr-Menü.

grotti/time_window.py

@@ -0,0 +1,72 @@
+"""Start-Zeitfenster pro Drucker (Nachtdruck)."""
+
+from __future__ import annotations
+
+from datetime import datetime, time, timedelta
+
+
+def _parse_hm(text):
+    text = str(text or "").strip()
+    if not text or ":" not in text:
+        return None
+    parts = text.split(":", 1)
+    try:
+        h, m = int(parts[0]), int(parts[1])
+    except (TypeError, ValueError):
+        return None
+    if not (0 <= h <= 23 and 0 <= m <= 59):
+        return None
+    return time(h, m)
+
+
+def _in_segment(now_t, start_t, end_t):
+    if start_t <= end_t:
+        return start_t <= now_t <= end_t
+    return now_t >= start_t or now_t <= end_t
+
+
+def allowed_now(start_window, now=None):
+    """True wenn kein Fenster gesetzt oder die aktuelle Uhrzeit erlaubt ist."""
+    window = start_window or {}
+    if not isinstance(window, dict):
+        return True
+    allowed = window.get("allowed")
+    if not allowed:
+        return True
+    if not isinstance(allowed, list):
+        return True
+    now_dt = now if isinstance(now, datetime) else datetime.now().astimezone()
+    now_t = now_dt.timetz().replace(tzinfo=None)
+    for entry in allowed:
+        if not isinstance(entry, dict):
+            continue
+        start_t = _parse_hm(entry.get("from"))
+        end_t = _parse_hm(entry.get("to"))
+        if start_t is None or end_t is None:
+            continue
+        if _in_segment(now_t, start_t, end_t):
+            return True
+    return False
+
+
+def overnight_max_hours(start_window):
+    window = start_window or {}
+    if not isinstance(window, dict):
+        return None
+    try:
+        val = float(window.get("max_hours_overnight") or 0)
+    except (TypeError, ValueError):
+        return None
+    return val if val > 0 else None
+
+
+def job_fits_overnight(start_window, estimated_s, now=None):
+    """Optional: Job darf max_hours_overnight nicht überschreiten (nur wenn gesetzt)."""
+    max_h = overnight_max_hours(start_window)
+    if max_h is None:
+        return True
+    if not estimated_s or float(estimated_s) <= 0:
+        return True
+    if allowed_now(start_window, now=now):
+        return float(estimated_s) <= max_h * 3600
+    return True