feature(backend): Add backfill of connections and feedbacks stats

backend/stats_app/management/commands/backfill_stats.py

+import logging
+from datetime import timedelta, datetime
+
+from django.core.management.base import BaseCommand
+from django.utils.timezone import make_aware
+
+from stats_app.compute_stats import update_all_stats
+
+
+logger = logging.getLogger("Backfill stats")
+
+
+def backfill_stats_history(date_from: datetime, date_to: datetime):
+    """
+    update all stats in the time range delimited by datetimes in arguments
+
+    :param date_from: beginning of the time range
+    :param date_to: end of the time range
+    """
+
+    local_date_from = date_from
+
+    while local_date_from.strftime("%Y-%m-%d") != date_to.strftime("%Y-%m-%d"):
+        logger.info(local_date_from)
+        update_all_stats(local_date_from)
+        local_date_from = local_date_from + timedelta(days=1)
+
+
+class Command(BaseCommand):
+    help = "Backfill REX-DRI stats data"
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--date-from",
+            required=True,
+            type=str,
+            help="The start date for the backfill (YYYY-MM-DD).",
+        )
+        parser.add_argument(
+            "--date-to",
+            required=True,
+            help="The end date for the backfill (YYYY-MM-DD)",
+        )
+
+    def handle(self, *args, **options):
+        date_from = make_aware(datetime.strptime(options["date_from"], "%Y-%m-%d"))
+        date_to = make_aware(datetime.strptime(options["date_to"], "%Y-%m-%d"))
+        logger.info(f"Backfill from {date_from} to {date_to}.")
+        backfill_stats_history(date_from, date_to)