ReservationChecker

antifroud/check_fraud.py

@@ -1,3 +1,4 @@
+import json
 from datetime import timedelta
 from urllib.parse import parse_qs
 from django.utils import timezone
@@ -19,9 +20,6 @@ class ReservationChecker:
         """
         Инициализация времени проверки и списка нарушений.
         """
-        self.start_time = timezone.now() - timedelta(days=30)
-        self.end_time = timezone.now()
-        self.violations = []
         self.checkin_diff_hours = 3
 
     def log_info(self, message):
@@ -33,100 +31,71 @@ class ReservationChecker:
     def log_error(self, message):
         logger.error(message)
 
-    def fetch_user_logs(self):
-        try:
-            self.log_info("Начинается извлечение логов активности пользователей.")
-            user_logs = UserActivityLog.objects.filter(fraud_checked=False)
-            self.log_info(f"Найдено {user_logs.count()} логов активности для анализа.")
-            return user_logs
-        except Exception as e:
-            self.log_error(f"Ошибка при извлечении логов активности: {e}")
-            return UserActivityLog.objects.none()
-
-    def fetch_reservations(self):
-        try:
-            self.log_info("Начинается извлечение бронирований.")
-            reservations = Reservation.objects.filter(fraud_checked=False)
-            self.log_info(f"Найдено {reservations.count()} бронирований для анализа.")
-            return reservations
-        except Exception as e:
-            self.log_error(f"Ошибка при извлечении бронирований: {e}")
-            return Reservation.objects.none()
-
-    def find_violations(self):
-        self.log_info("Начинается анализ несоответствий.")
-        user_logs = self.fetch_user_logs()
-        reservations = self.fetch_reservations()
-
-        log_lookup = {}
-        for log in user_logs:
-            params = parse_qs(log.url_parameters or "")
-            hotel_id = params.get("utm_content", [None])[0]
-            room_number = params.get("utm_term", [None])[0]
-            if hotel_id and room_number:
-                key = (hotel_id, room_number)
-                log_lookup.setdefault(key, []).append(log)
-
-        for reservation in reservations:
-            key = (reservation.hotel.hotel_id, reservation.room_number)
-            logs = log_lookup.get(key, [])
-
-            if reservation.status == "заселен" and not logs:
-                self.record_violation(
-                    hotel=reservation.hotel,
-                    room_number=reservation.room_number,
-                    violation_type="no_qr_scan",
-                    details=f"Бронирование для номера {reservation.room_number} в отеле '{reservation.hotel.name}' "
-                            f"не имеет записи сканирования QR."
-                )
-
-            for log in logs:
-                if log.created < reservation.check_in:
-                    self.record_violation(
-                        hotel=reservation.hotel,
-                        room_number=reservation.room_number,
-                        violation_type="early_check_in",
-                        details=f"Раннее заселение: сканирование QR {log.created} раньше времени заезда "
-                                f"{reservation.check_in} для номера {reservation.room_number}."
-                    )
-
-        for (hotel_id, room_number), logs in log_lookup.items():
-            matching_reservations = reservations.filter(
-                hotel__hotel_id=hotel_id,
-                room_number=room_number
-            )
-            if not matching_reservations.exists():
-                for log in logs:
-                    self.record_violation(
-                        hotel=Hotel.objects.filter(hotel_id=hotel_id).first(),
-                        room_number=room_number,
-                        violation_type="no_reservation",
-                        details=f"Сканирование QR {log.created} для номера {room_number} в отеле с ID '{hotel_id}' "
-                                f"не соответствует ни одному бронированию."
-                    )
-
-    def record_violation(self, hotel, room_number, violation_type, details):
-        if hotel:
-            self.violations.append(ViolationLog(
-                hotel=hotel,
-                room_number=room_number,
-                violation_type=violation_type,
-                violation_details=details
-            ))
-            self.log_warning(f"Зафиксировано нарушение: {details}")
-
-    def save_violations(self):
-        if self.violations:
-            ViolationLog.objects.bulk_create(self.violations)
-            self.log_info(f"Создано {len(self.violations)} записей в ViolationLog.")
-        else:
-            self.log_info("Нарушений не обнаружено.")
-
     def run_check(self):
-        self.log_info(f"Запуск проверки с {self.start_time} по {self.end_time}.")
+        self.log_info(f"Запуск проверки.")
         try:
-            self.find_violations()
-            #self.save_violations()
+            hotels_map = {}
+            hotels = Hotel.objects.all()
+            for hotel in hotels:
+                hotels_map[hotel.hotel_id] = hotel
+
+            user_logs = UserActivityLog.objects.filter(fraud_checked=False)
+            reservations = Reservation.objects.filter(fraud_checked=False).select_related('hotel')
+            missing = list(reservations)
+
+            violations = []
+            check_in_diff = timedelta(hours=self.checkin_diff_hours)
+
+            for user_log in user_logs:
+                try:
+                    params = json.loads(user_log.url_parameters.replace("'", '"'))
+                    hotel_id = params['utm_content']
+                    room = params['utm_term']
+                    reserv = next((x for x in reservations
+                        if x.hotel.hotel_id == hotel_id and x.room_number == room
+                            and user_log.date_time >= x.check_in - check_in_diff and user_log.date_time < x.check_out
+                    ), None)
+                    v_type = None
+                    if reserv:
+                        if reserv in missing:
+                            missing.remove(reserv)
+                        if user_log.date_time < reserv.check_in:
+                            v_type = 'early'
+                        if user_log.date_time > reserv.check_in + check_in_diff:
+                            v_type = 'late'
+                    else:
+                        v_type = 'no_booking'
+
+                    if v_type:
+                        violations.append(RoomDiscrepancy(
+                            hotel=hotels_map[hotel_id],
+                            room_number=room,
+                            discrepancy_type=v_type,
+                            booking_id=reserv.reservation_id if reserv else None,
+                            check_in_date_expected=reserv.check_in if reserv else None,
+                            check_in_date_actual=user_log.date_time,
+                        ))
+
+                    user_log.fraud_checked = True
+                except Exception as e:
+                    logger.error(e)
+
+            for miss_reserv in missing:
+                violations.append(RoomDiscrepancy(
+                    hotel=miss_reserv.hotel,
+                    room_number=miss_reserv.room_number,
+                    discrepancy_type='missed',
+                    booking_id=miss_reserv.reservation_id,
+                    check_in_date_expected=miss_reserv.check_in,
+                ))
+            for reserv in reservations:
+                reserv.fraud_checked = True
+
+            RoomDiscrepancy.objects.bulk_create(violations)
+            UserActivityLog.objects.bulk_update(user_logs, ['fraud_checked'], 1000)
+            Reservation.objects.bulk_update(reservations, ['fraud_checked'], 1000)
+
+
         except Exception as e:
             self.log_error(f"Ошибка при выполнении проверки: {e}")
         self.log_info("Проверка завершена.")