From 8fa179faed2805c74e0306d21eaee3f646652e58 Mon Sep 17 00:00:00 2001
From: schroda <50052685+schroda@users.noreply.github.com>
Date: Fri, 8 May 2026 18:24:31 +0200
Subject: [PATCH] Prevent starting single migration while migration is in
 progress

---
 src/features/manga/services/Mangas.ts | 5 +++++
 src/i18n/locales/en.po                | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/src/features/manga/services/Mangas.ts b/src/features/manga/services/Mangas.ts
index ab070749..8e810577 100644
--- a/src/features/manga/services/Mangas.ts
+++ b/src/features/manga/services/Mangas.ts
@@ -298,6 +298,11 @@ export class Mangas {
     }
 
     static async migrate(mangaIds: MangaIdInfo['id'][]): Promise<void> {
+        if (MigrationManager.isActive()) {
+            makeToast(t`A migration is already in progress`, 'error');
+            return;
+        }
+
         const mangas = mangaIds.map((mangaId) => {
             const manga = Mangas.getFromCache(mangaId, MANGA_MIGRATION_FIELDS, 'MANGA_MIGRATION_FIELDS');
             assertIsDefined(manga);
diff --git a/src/i18n/locales/en.po b/src/i18n/locales/en.po
index 244145d2..e0ec3e81 100644
--- a/src/i18n/locales/en.po
+++ b/src/i18n/locales/en.po
@@ -313,6 +313,10 @@ msgstr "*: Active setting"
 msgid "<0>Suwayomi does not provide any support for 3rd party repositories or extensions!</0><1/>Use with caution as there could be malicious actors making those repositories.<2/>You as the user need to verify the security and that you trust any repository or extension."
 msgstr "<0>Suwayomi does not provide any support for 3rd party repositories or extensions!</0><1/>Use with caution as there could be malicious actors making those repositories.<2/>You as the user need to verify the security and that you trust any repository or extension."
 
+#: src/features/manga/services/Mangas.ts
+msgid "A migration is already in progress"
+msgstr "A migration is already in progress"
+
 #: src/features/settings/Settings.constants.ts
 msgid "A preview focused web frontend built with svelte"
 msgstr "A preview focused web frontend built with svelte"