fix: complete v1.2 account and profile P0 fixes

backend/progression/views.py

@@ -1,6 +1,9 @@
+from django.db.models import Prefetch, Q
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
+from contest.models import RatingHistory, RealtimeMatch
+
 from .models import UserAbility, UserPet
 
 
@@ -21,6 +24,54 @@ class ProgressionProfileView(APIView):
                     "fragments": ability.fragments,
                 }
             )
+        matches = (
+            RealtimeMatch.objects.filter(
+                Q(player_one=request.user) | Q(player_two=request.user),
+                status=RealtimeMatch.Status.COMPLETED,
+            )
+            .select_related("contest", "player_one", "player_two", "winner")
+            .prefetch_related(
+                Prefetch(
+                    "rating_changes",
+                    queryset=RatingHistory.objects.filter(user=request.user),
+                    to_attr="viewer_rating_changes",
+                )
+            )
+            .order_by("-completed_at")[:10]
+        )
+        recent_matches = []
+        for match in matches:
+            opponent = (
+                match.player_two
+                if match.player_one_id == request.user.id
+                else match.player_one
+            )
+            rating_change = (
+                match.viewer_rating_changes[0]
+                if match.viewer_rating_changes
+                else None
+            )
+            recent_matches.append(
+                {
+                    "match_id": match.id,
+                    "contest": match.contest.title,
+                    "opponent": opponent.nickname if opponent else "未知对手",
+                    "result": (
+                        "draw"
+                        if match.winner_id is None
+                        else "win"
+                        if match.winner_id == request.user.id
+                        else "loss"
+                    ),
+                    "rating_delta": rating_change.delta if rating_change else 0,
+                    "rating_after": (
+                        rating_change.rating_after
+                        if rating_change
+                        else request.user.rating
+                    ),
+                    "completed_at": match.completed_at,
+                }
+            )
         return Response(
             {
                 "pet": {
@@ -52,5 +103,6 @@ class ProgressionProfileView(APIView):
                     }
                     for attempt in request.user.math_game_attempts.all()[:10]
                 ],
+                "recent_matches": recent_matches,
             }
         )