Update src/utils/time_utils.py

src/utils/time_utils.py

@@ -1,19 +1,41 @@
-TZ_NAME = "Asia/Muscat"
+from datetime import datetime, timedelta
+import pytz
 
-ROOM_STATUS = ["free", "occupied", "need_cleaning", "out_of_service"]
+# Hotel timezone
+OMAN_TZ = pytz.timezone("Asia/Muscat")
 
-STATUS_COLORS = {
-    "free": "#ffffff",
-    "occupied": "#8e44ad",
-    "need_cleaning": "#e74c3c",
-    "out_of_service": "#95a5a6",
-}
 
-STATUS_TEXT_COLORS = {
-    "free": "#000000",          # REQUIRED: black on white tiles
-    "occupied": "#ffffff",
-    "need_cleaning": "#ffffff",
-    "out_of_service": "#000000",
-}
+def utc_now_iso() -> str:
+    """
+    Returns current UTC time in ISO-8601 format.
+    Used for all audit-safe timestamps.
+    """
+    return datetime.utcnow().replace(microsecond=0).isoformat() + "Z"
 
-PAYMENT_METHODS = ["cash", "card", "bank", "other"]
+
+def local_now() -> datetime:
+    """
+    Returns current local time in Asia/Muscat timezone.
+    """
+    return datetime.now(OMAN_TZ)
+
+
+def local_date_str() -> str:
+    """
+    Returns local date (Asia/Muscat) as YYYY-MM-DD.
+    """
+    return local_now().strftime("%Y-%m-%d")
+
+
+def business_date_for_closing(now: datetime | None = None) -> str:
+    """
+    Business day closes at 06:00 Asia/Muscat.
+    - Before 06:00 → business day = yesterday
+    - After 06:00  → business day = today
+    """
+    if now is None:
+        now = local_now()
+
+    if now.hour < 6:
+        return (now.date() - timedelta(days=1)).isoformat()
+    return now.date().isoformat()