From 0d9ba2c33a4a978cbed80394f4ac44cd84f710d3 Mon Sep 17 00:00:00 2001
From: truewhile <62226914+truewhile@users.noreply.github.com>
Date: Wed, 19 Aug 2026 22:33:23 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A4=84=E7=90=86=E5=88=A0=E5=BA=93=E9=87=8D?=
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本地文件入库媒体库删除后重新入库导致0条目bug
---
 internal/service/media_cloud_test.go | 7 +++++++
 internal/service/media_library.go    | 5 ++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/internal/service/media_cloud_test.go b/internal/service/media_cloud_test.go
index 0f89d68..c6dbda9 100644
--- a/internal/service/media_cloud_test.go
+++ b/internal/service/media_cloud_test.go
@@ -51,6 +51,13 @@ func TestDeleteLibraryHardDeletesLibraryRoots(t *testing.T) {
 	if visibleLibraryCount != 0 {
 		t.Fatalf("deleted library should not remain visible, count=%d", visibleLibraryCount)
 	}
+	var mediaCount int64
+	if err := db.Unscoped().Model(&model.Media{}).Where("library_id = ?", lib.ID).Count(&mediaCount).Error; err != nil {
+		t.Fatal(err)
+	}
+	if mediaCount != 0 {
+		t.Fatalf("local library media rows should be hard deleted, count=%d", mediaCount)
+	}
 }
 
 func TestDeleteCloudLibraryPurgesMountWithoutRecycleBin(t *testing.T) {
diff --git a/internal/service/media_library.go b/internal/service/media_library.go
index b2f2f6b..ffb6948 100644
--- a/internal/service/media_library.go
+++ b/internal/service/media_library.go
@@ -37,7 +37,10 @@ func (s *MediaService) DeleteLibrary(ctx context.Context, id string) error {
 		}
 	}
 	err = s.repo.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
-		if err := tx.Where("library_id = ?", id).Delete(&model.Media{}).Error; err != nil {
+		// 本地库媒体行统一硬删除（与云库分支一致）：删库即彻底清空该库的
+		// media 行，避免重扫时旧行被 upsert 复活却仍挂在已删库下，导致重建
+		// 同名库后条目始终为 0。只作用于数据库表行，磁盘文件不受影响。
+		if err := tx.Unscoped().Where("library_id = ?", id).Delete(&model.Media{}).Error; err != nil {
 			return err
 		}
 		if err := hardDeleteLibraryRoots(ctx, tx, id); err != nil {