From 385a716516858f144c9d33e040540d185b8e472e Mon Sep 17 00:00:00 2001
From: Brad Stein <Brad.Stein@gmail.com>
Date: Thu, 18 Sep 2025 02:48:31 -0500
Subject: [PATCH] fixed jellyfin refresh

---
 backend/internal/jellyfin.go |  8 +---
 backend/internal/refresh.go  | 82 ++++++++++++++++++++++++++++++++++++
 backend/main.go              |  2 +-
 3 files changed, 84 insertions(+), 8 deletions(-)
 create mode 100644 backend/internal/refresh.go

diff --git a/backend/internal/jellyfin.go b/backend/internal/jellyfin.go
index 729e072..ce3495b 100644
--- a/backend/internal/jellyfin.go
+++ b/backend/internal/jellyfin.go
@@ -4,7 +4,7 @@ package internal
 import (
 	"bytes"
 	"encoding/json"
-	"fmt"
+	"fmt"        // <-- keep this; used by fmt.Errorf
 	"net/http"
 	"os"
 	"time"
@@ -57,9 +57,3 @@ func (j *Jellyfin) AuthenticateByName(username, password string) (jfAuthResult,
 	}
 	return out, nil
 }
-
-func (j *Jellyfin) RefreshLibrary(token string) {
-	req, _ := http.NewRequest("GET", j.BaseURL+"/Library/Refresh", nil)
-	req.Header.Set("X-MediaBrowser-Token", token)
-	_, _ = j.Client.Do(req)
-}
diff --git a/backend/internal/refresh.go b/backend/internal/refresh.go
new file mode 100644
index 0000000..7212230
--- /dev/null
+++ b/backend/internal/refresh.go
@@ -0,0 +1,82 @@
+// backend/internal/refresh.go
+package internal
+
+import (
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+// Debounce refresh calls so a burst of uploads/renames/deletes only triggers one scan.
+var (
+	refreshMu    sync.Mutex
+	refreshTimer *time.Timer
+)
+
+// RefreshLibrary triggers a Jellyfin library scan.
+// - Prefers JELLYFIN_API_KEY (admin key). Falls back to userToken if no key.
+// - Debounced: calls within 2s are coalesced to a single scan.
+func (j *Jellyfin) RefreshLibrary(userToken string) {
+	refreshMu.Lock()
+	defer refreshMu.Unlock()
+
+	if refreshTimer != nil {
+		// push the timer out a bit if more events arrive
+		refreshTimer.Reset(2 * time.Second)
+		return
+	}
+
+	refreshTimer = time.AfterFunc(2*time.Second, func() {
+		base := strings.TrimRight(os.Getenv("JELLYFIN_URL"), "/")
+		if base == "" {
+			log.Printf("jellyfin refresh: JELLYFIN_URL missing; skipping")
+			safeClearTimer()
+			return
+		}
+		token := os.Getenv("JELLYFIN_API_KEY")
+		if token == "" {
+			token = userToken // last resort (may fail if user is not admin)
+		}
+		if token == "" {
+			log.Printf("jellyfin refresh: no token; skipping")
+			safeClearTimer()
+			return
+		}
+
+		req, _ := http.NewRequest(http.MethodPost, base+"/Library/Refresh", nil)
+		// Jellyfin/Emby accept API key via header or query; header is cleanest.
+		// Either X-Emby-Token or X-MediaBrowser-Token are accepted; we use X-Emby-Token.
+		req.Header.Set("X-Emby-Token", token)
+
+		client := j.Client
+		if client == nil {
+			client = &http.Client{Timeout: 20 * time.Second}
+		}
+		resp, err := client.Do(req)
+		if err != nil {
+			log.Printf("jellyfin refresh: request error: %v", err)
+			safeClearTimer()
+			return
+		}
+		_, _ = io.Copy(io.Discard, resp.Body)
+		_ = resp.Body.Close()
+
+		if resp.StatusCode >= 300 {
+			log.Printf("jellyfin refresh: HTTP %s", resp.Status)
+		} else {
+			log.Printf("jellyfin refresh: triggered")
+		}
+
+		safeClearTimer()
+	})
+}
+
+func safeClearTimer() {
+	refreshMu.Lock()
+	defer refreshMu.Unlock()
+	refreshTimer = nil
+}
diff --git a/backend/main.go b/backend/main.go
index fbb73bf..79fdbeb 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -100,7 +100,7 @@ func main() {
 			BasePath:                 "/tus/",
 			StoreComposer:            composer,
 			NotifyCompleteUploads:    true,
-			MaxSize:                  4 * 1024 * 1024 * 1024, // 4GB per file
+			MaxSize:                  8 * 1024 * 1024 * 1024, // 8GB per file
 			RespectForwardedHeaders:  true,                    // <<< important for https behind Traefik
 	}
 	tusHandler, err := tusd.NewUnroutedHandler(config)