feat: automatically resync completed downloads to webdav

main.go

@@ -37,6 +37,7 @@ func main() {
 		a.storage = NewWebDAVStorage(a.cfg)
 	}
 	a.startWorkers()
+	a.startWebDAVResync()
 
 	r := gin.Default()
 	r.StaticFile("/", "/app/index.html")

webdav_resync.go

@@ -0,0 +1,33 @@
+package main
+
+import "time"
+
+// resyncPendingUploads repairs tasks that finished locally while WebDAV was
+// unavailable or the user's WebDAV permission was not yet configured.
+func (a *App) resyncPendingUploads() {
+	var tasks []Task
+	if err := a.db.Where("status = ? AND local_path <> ? AND (remote_path = ? OR remote_path IS NULL)", "done", "", "").Order("id asc").Limit(100).Find(&tasks).Error; err != nil {
+		return
+	}
+	for i := range tasks {
+		t := tasks[i]
+		if _, _, ok := a.storageForTask(&t); !ok {
+			continue
+		}
+		a.upload(&t)
+		time.Sleep(50 * time.Millisecond)
+	}
+}
+
+// startWebDAVResync runs a small periodic repair loop. It is intentionally
+// conservative: only completed local tasks without a remote path are retried.
+func (a *App) startWebDAVResync() {
+	go func() {
+		a.resyncPendingUploads()
+		ticker := time.NewTicker(5 * time.Minute)
+		defer ticker.Stop()
+		for range ticker.C {
+			a.resyncPendingUploads()
+		}
+	}()
+}