feat: add scouting shortlist mvp

app/scouting/views.py

@@ -4,10 +4,13 @@ from decimal import Decimal
 
 from django.core.paginator import Paginator
 from django.db.models import Exists, OuterRef, Prefetch
+from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
+from django.urls import reverse
+from django.views.decorators.http import require_POST
 
 from .forms import PlayerSearchForm
-from .models import Player, PlayerSeason
+from .models import FavoritePlayer, Player, PlayerSeason
 
 PAGE_SIZE = 20
 PLAYER_SORTS = {
@@ -25,6 +28,19 @@ CONTEXT_SORTS = {
 }
 
 
+def apply_favorite_state(players):
+    favorite_ids = set(FavoritePlayer.objects.values_list("player_id", flat=True))
+    for player in players:
+        player.is_favorite = player.id in favorite_ids
+
+
+def redirect_to_next(request, fallback_url):
+    next_url = request.POST.get("next")
+    if next_url and next_url.startswith("/"):
+        return HttpResponseRedirect(next_url)
+    return HttpResponseRedirect(fallback_url)
+
+
 def sort_players(players, sort_key: str, context_filters_used: bool):
     if sort_key not in PLAYER_SORTS | set(CONTEXT_SORTS):
         sort_key = "name_asc"
@@ -232,6 +248,7 @@ def player_list(request):
     active_sort = sort_players(players, requested_sort, context_filters_used)
     paginator = Paginator(players, PAGE_SIZE)
     page_obj = paginator.get_page(request.GET.get("page"))
+    apply_favorite_state(page_obj.object_list)
     query_without_page = request.GET.copy()
     query_without_page.pop("page", None)
 
@@ -268,5 +285,39 @@ def player_detail(request, player_id: int):
         {
             "player": player,
             "contexts": contexts,
+            "is_favorite": FavoritePlayer.objects.filter(player=player).exists(),
+        },
+    )
+
+
+@require_POST
+def add_favorite(request, player_id: int):
+    player = get_object_or_404(Player, pk=player_id)
+    FavoritePlayer.objects.get_or_create(player=player)
+    return redirect_to_next(request, reverse("scouting:player_detail", args=[player.id]))
+
+
+@require_POST
+def remove_favorite(request, player_id: int):
+    player = get_object_or_404(Player, pk=player_id)
+    FavoritePlayer.objects.filter(player=player).delete()
+    return redirect_to_next(request, reverse("scouting:player_detail", args=[player.id]))
+
+
+def favorites_list(request):
+    favorites = list(
+        FavoritePlayer.objects.select_related("player")
+        .prefetch_related("player__roles", "player__specialties")
+        .order_by("-created_at", "player__full_name")
+    )
+
+    for entry in favorites:
+        entry.player.is_favorite = True
+
+    return render(
+        request,
+        "scouting/favorites_list.html",
+        {
+            "favorites": favorites,
         },
     )