From b126dc753a6f682d39e6ca0b4f23e4d9f384ac1e Mon Sep 17 00:00:00 2001
From: Kalle <38327916+Sendouc@users.noreply.github.com>
Date: Tue, 24 Feb 2026 20:49:30 +0200
Subject: [PATCH] Persist prepared maps for sibling bracket reuse

---
 .../actions/to.$id.brackets.server.ts         | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/app/features/tournament-bracket/actions/to.$id.brackets.server.ts b/app/features/tournament-bracket/actions/to.$id.brackets.server.ts
index 05fcb4113..bc7c58f03 100644
--- a/app/features/tournament-bracket/actions/to.$id.brackets.server.ts
+++ b/app/features/tournament-bracket/actions/to.$id.brackets.server.ts
@@ -24,6 +24,7 @@ import { idObject } from "~/utils/zod";
 import type { PreparedMaps } from "../../../db/tables";
 import { getServerTournamentManager } from "../core/brackets-manager/manager.server";
 import { roundMapsFromInput } from "../core/mapList.server";
+import * as PreparedMapsUtils from "../core/PreparedMaps";
 import * as Swiss from "../core/Swiss";
 import type { Tournament } from "../core/Tournament";
 import {
@@ -122,6 +123,27 @@ export const action: ActionFunction = async ({ params, request }) => {
 				);
 			})();
 
+			// persist maps as prepared even if they weren't initially so sibling brackets can reuse them
+			const existingPreparedMaps =
+				await TournamentRepository.findPreparedMapsById(tournamentId);
+			if (!existingPreparedMaps?.[data.bracketIdx]) {
+				await TournamentRepository.upsertPreparedMaps({
+					bracketIdx: data.bracketIdx,
+					tournamentId,
+					maps: {
+						maps,
+						authorId: user.id,
+						eliminationTeamCount:
+							bracket.type === "single_elimination" ||
+							bracket.type === "double_elimination"
+								? PreparedMapsUtils.eliminationTeamCountOptions(
+										seeding.length,
+									)[0].max
+								: undefined,
+					},
+				});
+			}
+
 			// ensures autoseeding is disabled
 			const isAllSeedsPersisted = tournament.ctx.teams.every(
 				(team) => typeof team.seed === "number",