"""Platform and per-club statistics. ``club_statistics`` returns a list of stat *groups*, so growing the model later means adding an entry here and nothing else. ``clubs_with_totals`` annotates in a single query — the club list must not fan out into N+1. """ from datetime import timedelta from decimal import Decimal from allauth.mfa.models import Authenticator from django.contrib.auth import get_user_model from django.db.models import Count, Q, Sum from django.db.models.functions import TruncMonth from django.utils import timezone from waffle import get_waffle_flag_model from authentication.middleware import ELEVATED_ROLES from club.models import Club, ClubMembership, ClubRole, Season from events.models import Event from members.models import Member from shop.models import Cart, Order from teams.models import StaffAssignment, Team, TeamMembership ZERO = Decimal("0.00") PAID_STATUSES = (Order.OrderStatus.PAID, Order.OrderStatus.DELIVERED) OWED_STATUSES = (Order.OrderStatus.PENDING, Order.OrderStatus.PARTIALLY_PAID) #: A club with nothing scheduled inside this window has stopped using the product. DORMANT_DAYS = 30 MONTHS_OF_HISTORY = 12 def clubs_with_totals(queryset=None): """Clubs annotated with headline counts (one query, no N+1).""" clubs = Club.objects.all() if queryset is None else queryset return clubs.annotate( member_count=Count("clubmemberships__member", distinct=True), team_count=Count("teams", distinct=True), event_count=Count("events", distinct=True), admin_count=Count("clubroles", filter=Q(clubroles__role=ClubRole.Roles.ADMIN), distinct=True), ) def platform_totals(): return { "clubs": Club.objects.active().count(), "archived_clubs": Club.objects.archived().count(), "members": Member.objects.count(), "admins": ClubRole.objects.filter(role=ClubRole.Roles.ADMIN).count(), } def clubs_without_a_season(today=None): """Clubs with no season covering today. Not cosmetic: seasons scope memberships, rosters and events, so a club without one cannot take a signup or schedule a match. It fails silently — nothing errors, the club is simply inert — which is exactly why it belongs on a dashboard. """ today = today or timezone.localdate() return Club.objects.active().exclude(seasons__start_date__lte=today, seasons__end_date__gte=today) def dormant_clubs(days=DORMANT_DAYS): """Active clubs with nothing on the calendar in the next ``days``. Churn signal.""" now = timezone.now() return Club.objects.active().exclude(events__start__gte=now, events__start__lte=now + timedelta(days=days)) def admins_pending_mfa(): """Privileged users who have not enrolled a second factor. They are locked out until they do (RequireMFAMiddleware redirects them to the enrolment page), so this is a support queue rather than a statistic. The rule is the middleware's own: platform staff, plus anyone holding an elevated ClubRole. """ User = get_user_model() elevated = User.objects.filter(Q(is_staff=True) | Q(is_superuser=True) | Q(member__roles__role__in=ELEVATED_ROLES)) return elevated.exclude(pk__in=Authenticator.objects.values("user")).distinct() def onboarding_funnel(): """How far each active club got: created → has members → has a team → has events. Separates working clubs from empty shells someone created and walked away from, and shows which step people stall on. """ clubs = clubs_with_totals(Club.objects.active()) total = len(clubs) return [ {"label": "Clubs", "count": total, "icon": "building-2"}, {"label": "With members", "count": sum(1 for club in clubs if club.member_count), "icon": "users"}, {"label": "With a team", "count": sum(1 for club in clubs if club.team_count), "icon": "shield"}, {"label": "With events", "count": sum(1 for club in clubs if club.event_count), "icon": "calendar-days"}, ] def flag_adoption(): """Clubs per feature flag. `everyone` overrides club targeting, so a flag set that way is on (or off) everywhere and its club count says nothing — hence `overridden`.""" Flag = get_waffle_flag_model() return [{"name": flag.name, "clubs": flag.clubs.count(), "everyone": flag.everyone, "overridden": flag.everyone is not None} for flag in Flag.objects.annotate(club_total=Count("clubs")).order_by("name")] def platform_attention(): """The numbers that are supposed to be zero. A dashboard of healthy counts is a dashboard nobody opens.""" members = Member.objects.count() return { "clubs_without_season": clubs_without_a_season().count(), "dormant_clubs": dormant_clubs().count(), "admins_pending_mfa": admins_pending_mfa().count(), "outstanding": _money(Order.objects.filter(status__in=OWED_STATUSES)), "members_without_login": Member.objects.filter(user__isnull=True).count(), "members": members, } def _monthly(queryset, field, value, months=MONTHS_OF_HISTORY): """A dense month-by-month series — zero-filled, because a chart that silently skips empty months draws a smooth line over a month where nothing happened.""" start = (timezone.now() - timedelta(days=30 * months)).replace(day=1, hour=0, minute=0, second=0, microsecond=0) rows = queryset.filter(**{f"{field}__gte": start}).annotate(month=TruncMonth(field)).values("month").annotate(value=value).order_by("month") found = {row["month"].strftime("%Y-%m"): row["value"] or 0 for row in rows if row["month"]} series, cursor = [], start while cursor <= timezone.now(): key = cursor.strftime("%Y-%m") series.append({"month": cursor.strftime("%b %Y"), "value": float(found.get(key, 0))}) cursor = (cursor + timedelta(days=32)).replace(day=1) return series def platform_charts(): return { "signups": _monthly(ClubMembership.objects.filter(signed_up_at__isnull=False), "signed_up_at", Count("id")), "revenue": _monthly(Order.objects.filter(status__in=PAID_STATUSES), "created", Sum("total")), } def _money(queryset): return queryset.aggregate(total=Sum("total"))["total"] or ZERO def club_statistics(club): """Stat groups for one club. Add new groups here as the domain grows.""" season = Season.covering(club, timezone.localdate()) now = timezone.now() memberships = ClubMembership.objects.filter(club=club) events = Event.objects.filter(club=club) orders = Order.objects.filter(club=club) return [ { "title": "Members", "icon": "users", "stats": [ ("Members", memberships.values("member").distinct().count()), ("Active this season", memberships.filter(season=season, status=ClubMembership.StatusChoices.ACTIVE).count() if season else 0), ("Pending", memberships.filter(status=ClubMembership.StatusChoices.PENDING).count()), ("Lapsed", memberships.filter(status=ClubMembership.StatusChoices.LAPSED).count()), ], }, { "title": "Teams & staff", "icon": "shield", "stats": [ ("Teams", Team.objects.filter(club=club).count()), ("Players this season", TeamMembership.objects.filter(team__club=club, season=season).count() if season else 0), ("Staff this season", StaffAssignment.objects.filter(team__club=club, season=season).count() if season else 0), ], }, { "title": "Events", "icon": "calendar-days", "stats": [ ("Upcoming", events.filter(start__gte=now).count()), ("This season", events.filter(season=season).count() if season else 0), ], }, { "title": "Shop", "icon": "shopping-cart", "stats": [ ("Orders", orders.count()), ("Revenue", _money(orders.filter(status__in=PAID_STATUSES))), ("Outstanding", _money(orders.filter(status__in=OWED_STATUSES))), ("Open carts", Cart.objects.filter(club=club, status=Cart.CartStatus.OPEN).count()), ], }, ]