Preserve leaderboard context in player profiles

src/lib/server/fleet/leaderboard.ts

@@ -15,6 +15,16 @@ export function isLeaderboardMetric(value: string): value is LeaderboardMetric {
 
 /** Rank each GUID once within the selected matches; player search keeps their actual rank. */
 export function getLeaderboard(options: LeaderboardOptions = {}): LeaderboardResponse {
+    return readLeaderboard(options);
+}
+
+/** Select the exact player after ranking everyone eligible in the requested scope. */
+export function getPlayerLeaderboardEntry(guid: string,
+    options: Pick<LeaderboardOptions, 'game' | 'map' | 'metric'> = {}): LeaderboardEntry | null {
+    return readLeaderboard({ game: options.game, map: options.map, metric: options.metric, limit: 1 }, guid).entries[0] ?? null;
+}
+
+function readLeaderboard(options: LeaderboardOptions, exactGuid?: string): LeaderboardResponse {
     const handle = db();
     const metric = options.metric && isLeaderboardMetric(options.metric) ? options.metric : 'highestRound';
     const limit = Number.isSafeInteger(options.limit) ? Math.min(100, Math.max(1, options.limit!)) : 50;
@@ -53,8 +63,10 @@ export function getLeaderboard(options: LeaderboardOptions = {}): LeaderboardRes
         FROM measures JOIN identities p ON p.guid = measures.guid AND p.recency = 1 ${qualification}
     )`;
     const query = options.q?.trim() ?? '';
-    const search = query ? 'WHERE instr(lower(name), lower(?)) > 0 OR instr(lower(guid), lower(?)) > 0' : '';
-    const searchedParameters = query ? [...parameters, query, query] : parameters;
+    const search = exactGuid !== undefined ? 'WHERE guid = ?'
+        : query ? 'WHERE instr(lower(name), lower(?)) > 0 OR instr(lower(guid), lower(?)) > 0' : '';
+    const searchedParameters = exactGuid !== undefined ? [...parameters, exactGuid]
+        : query ? [...parameters, query, query] : parameters;
     const rankedEntries = handle.prepare(`${aggregated} SELECT * FROM ranked ${search}
         ORDER BY ${metric} DESC, name COLLATE NOCASE, name, guid LIMIT ? OFFSET ?`)
         .all(...searchedParameters, limit, offset) as Array<Omit<LeaderboardEntry, 'records'>>;