From 7a6051987eec0495e6afb0805caf3b9b6276ae69 Mon Sep 17 00:00:00 2001
From: jenz <jenz>
Date: Sun, 4 Oct 2026 16:30:53 +0200
Subject: [PATCH] added option for impact route to return a specific map with
 ?mapName parameter

---
 .../app/api/maps/impact/route.ts              | 22 +++++++++++++++++--
 .../playtime-frontend/lib/mapImpact.ts        | 13 +++++++++--
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/discord_verificiation/playtime-frontend/app/api/maps/impact/route.ts b/discord_verificiation/playtime-frontend/app/api/maps/impact/route.ts
index 548b289..71c6797 100644
--- a/discord_verificiation/playtime-frontend/app/api/maps/impact/route.ts
+++ b/discord_verificiation/playtime-frontend/app/api/maps/impact/route.ts
@@ -8,6 +8,17 @@ export async function GET(req: NextRequest) {
   const directionParam = req.nextUrl.searchParams.get('direction');
   const offset = Math.max(0, Number(req.nextUrl.searchParams.get('offset')) || 0);
 
+  // Accept either `mapName=foo` or `mapNames=foo,bar` (also tolerate
+  // repeated `mapName` params), so individual maps can be looked up
+  // directly instead of paging through the whole leaderboard.
+  const mapNames = [
+    ...req.nextUrl.searchParams.getAll('mapName'),
+    ...req.nextUrl.searchParams.getAll('mapNames'),
+  ]
+    .flatMap((v) => v.split(','))
+    .map((v) => v.trim())
+    .filter(Boolean);
+
   const sortBy = sortByParam === 'popularity' ? 'popularity' : 'impact';
   // Impact defaults to ascending (worst/most population-harming first, the
   // whole point of the feature); popularity defaults to descending (most
@@ -16,8 +27,15 @@ export async function GET(req: NextRequest) {
     ? directionParam
     : sortBy === 'popularity' ? 'desc' : 'asc';
 
-  const maps = await getMapImpactLeaderboard(sortBy, direction, PAGE_SIZE, offset);
-  const hasMore = maps.length === PAGE_SIZE;
+  const maps = await getMapImpactLeaderboard(
+    sortBy,
+    direction,
+    PAGE_SIZE,
+    offset,
+    mapNames.length > 0 ? mapNames : undefined,
+  );
+  // Pagination only applies when not filtering by name (see getMapImpactLeaderboard).
+  const hasMore = mapNames.length === 0 && maps.length === PAGE_SIZE;
 
   return NextResponse.json({ maps, hasMore });
 }
diff --git a/discord_verificiation/playtime-frontend/lib/mapImpact.ts b/discord_verificiation/playtime-frontend/lib/mapImpact.ts
index b3c6ce0..033dee9 100644
--- a/discord_verificiation/playtime-frontend/lib/mapImpact.ts
+++ b/discord_verificiation/playtime-frontend/lib/mapImpact.ts
@@ -235,14 +235,23 @@ export async function getMapImpactLeaderboard(
   direction: 'asc' | 'desc',
   limit = 50,
   offset = 0,
+  mapNames?: string[],
 ): Promise<MapImpactSummary[]> {
   const all = await getMapImpactStatsCached();
+  const filtered = mapNames && mapNames.length > 0
+    ? (() => {
+        const wanted = new Set(mapNames.map((n) => n.toLowerCase()));
+        return all.filter((m) => wanted.has(m.map_name.toLowerCase()));
+      })()
+    : all;
   const sign = direction === 'asc' ? 1 : -1;
-  const sorted = [...all].sort((a, b) => {
+  const sorted = [...filtered].sort((a, b) => {
     const av = sortBy === 'popularity' ? a.times_played : a.avg_net_change ?? 0;
     const bv = sortBy === 'popularity' ? b.times_played : b.avg_net_change ?? 0;
     if (av !== bv) return sign * (av - bv);
     return b.times_played - a.times_played; // stable tiebreaker, matches old ORDER BY ..., times_played DESC
   });
-  return sorted.slice(offset, offset + limit);
+  // When specific map names are requested, return all matches rather than
+  // paginating — the caller asked for those exact maps, not a page of them.
+  return mapNames && mapNames.length > 0 ? sorted : sorted.slice(offset, offset + limit);
 }