way better auth middleware, enroll team server fn and pb fn

src/features/tournaments/server.ts

@@ -41,3 +41,32 @@ export const getTournament = createServerFn()
     const tournament = await pbAdmin.getTournament(tournamentId);
     return tournament;
   });
+
+export const enrollTeam = createServerFn()
+  .validator(z.object({
+    tournamentId: z.string(),
+    teamId: z.string()
+  }))
+  .middleware([superTokensFunctionMiddleware])
+  .handler(async ({ data: { tournamentId, teamId }, context }) => {
+    try {
+      const userId = context.userAuthId;
+      const isAdmin = context.roles.includes("Admin"); 
+
+      const team = await pbAdmin.getTeam(teamId);
+      if (!team) { throw new Error('Team not found'); }
+
+      const isPlayerOnTeam = team.players?.some(player => player.id === userId);
+
+      if (!isPlayerOnTeam && !isAdmin) {
+        throw new Error('You do not have permission to enroll this team');
+      }
+
+      logger.info('Enrolling team in tournament', { tournamentId, teamId, userId });
+      const tournament = await pbAdmin.enrollTeam(tournamentId, teamId);
+      return tournament;
+    } catch (error) {
+      logger.error('Error enrolling team', error);
+      throw error;
+    }
+  });