Add admin challenge acceptance functionality: Implement adminAcceptChallenge method in ChallengeService, allowing admins to accept pending challenges. Update ChallengeManagement component to include a button for accepting challenges, enhancing admin capabilities and user feedback handling.

actions/admin/challenges.ts

@@ -234,3 +234,37 @@ export async function reactivateChallenge(challengeId: string) {
     };
   }
 }
+
+export async function adminAcceptChallenge(challengeId: string) {
+  try {
+    await checkAdminAccess();
+
+    const challenge = await challengeService.adminAcceptChallenge(challengeId);
+
+    revalidatePath("/admin");
+    revalidatePath("/challenges");
+
+    return {
+      success: true,
+      message: "Défi accepté avec succès",
+      data: challenge,
+    };
+  } catch (error) {
+    console.error("Admin accept challenge error:", error);
+
+    if (error instanceof ValidationError) {
+      return { success: false, error: error.message };
+    }
+    if (error instanceof NotFoundError) {
+      return { success: false, error: error.message };
+    }
+    if (error instanceof Error && error.message.includes("Accès refusé")) {
+      return { success: false, error: error.message };
+    }
+
+    return {
+      success: false,
+      error: "Une erreur est survenue lors de l'acceptation du défi",
+    };
+  }
+}