Add difficulty param to leaderboard, per-difficulty completion status

src/api/leaderboards.ts

@@ -43,9 +43,10 @@ export async function getLeaderboard(
   period: 'daily' | 'weekly' | 'all-time' = 'daily',
   page = 1,
   limit = 20,
+  difficulty?: string,
 ): Promise<LeaderboardResponse> {
   const { data } = await apiClient.get<LeaderboardResponse>('/leaderboards', {
-    params: { period, page, limit },
+    params: { period, page, limit, ...(difficulty && { difficulty }) },
   });
   return data;
 }
@@ -57,8 +58,14 @@ export async function getUserStats(mode: 'all' | 'daily' = 'daily'): Promise<Use
   return data;
 }
 
-export async function checkDailyCompletion(): Promise<{ completed: boolean }> {
-  const { data } = await apiClient.get<{ completed: boolean }>('/leaderboards/me/today');
+export interface DailyCompletionStatus {
+  easy: boolean;
+  medium: boolean;
+  hard: boolean;
+}
+
+export async function checkDailyCompletion(): Promise<DailyCompletionStatus> {
+  const { data } = await apiClient.get<DailyCompletionStatus>('/leaderboards/me/today');
   return data;
 }