Интегрирован wesp в сайт

apps/api/app/modules/zootech/analytics/date_range.py

@@ -0,0 +1,37 @@
+"""Разбор периода для analytics."""
+
+from __future__ import annotations
+
+from datetime import date, datetime, timedelta
+from typing import Optional, Tuple
+
+
+def parse_iso_date(value: Optional[str]) -> Optional[date]:
+    if not value:
+        return None
+    try:
+        return date.fromisoformat(str(value).strip()[:10])
+    except ValueError:
+        return None
+
+
+def resolve_date_bounds(
+    date_from: Optional[str],
+    date_to: Optional[str],
+) -> Tuple[datetime, datetime]:
+    """Включительно date_from … date_to (конец дня date_to)."""
+    today = date.today()
+    start_d = parse_iso_date(date_from) or today
+    end_d = parse_iso_date(date_to) or start_d
+    if end_d < start_d:
+        start_d, end_d = end_d, start_d
+    start_dt = datetime.combine(start_d, datetime.min.time())
+    end_dt = datetime.combine(end_d, datetime.max.time())
+    return start_dt, end_dt
+
+
+def iter_dates_in_range(start_d: date, end_d: date):
+    cur = start_d
+    while cur <= end_d:
+        yield cur
+        cur += timedelta(days=1)