From f6a7d41261e4a37387440ce66a5eb71b8597280e Mon Sep 17 00:00:00 2001
From: jojii <jojii@gmx.net>
Date: Thu, 6 Feb 2025 15:45:09 +0100
Subject: [PATCH] Config for custom lrclib server url

---
 backend/app.go    |  2 +-
 backend/config.go |  1 +
 backend/lrclib.go | 27 +++++++++++++++++++++++----
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/backend/app.go b/backend/app.go
index 4ff7815..f17819b 100644
--- a/backend/app.go
+++ b/backend/app.go
@@ -146,7 +146,7 @@ func StartupApp(appName, displayAppName, appVersion, appVersionTag, latestReleas
 		_, _ = a.ImageManager.GetCoverThumbnail(coverID)
 	})
 	if a.Config.Application.EnableLrcLib {
-		a.LrcLibFetcher = NewLrcLibFetcher(a.cacheDir)
+		a.LrcLibFetcher = NewLrcLibFetcher(a.cacheDir, a.Config.Application.CustomLrcLibUrl)
 	}
 
 	a.PlaybackManager.OnPlaying(func() {
diff --git a/backend/config.go b/backend/config.go
index 047ebaa..cf67efe 100644
--- a/backend/config.go
+++ b/backend/config.go
@@ -47,6 +47,7 @@ type AppConfig struct {
 	AddToPlaylistSkipDuplicates bool
 	ShowTrackChangeNotification bool
 	EnableLrcLib                bool
+	CustomLrcLibUrl             string
 	EnablePasswordStorage       bool
 	SkipSSLVerify               bool
 	EnqueueBatchSize            int
diff --git a/backend/lrclib.go b/backend/lrclib.go
index 11f215e..685583d 100644
--- a/backend/lrclib.go
+++ b/backend/lrclib.go
@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"net/url"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -23,13 +24,14 @@ import (
 const lrclibCacheFolder = "lrclib"
 
 type LrcLibFetcher struct {
-	cachePath string
+	cachePath       string
+	customLrcLibUrl string
 }
 
-func NewLrcLibFetcher(baseCacheDir string) *LrcLibFetcher {
+func NewLrcLibFetcher(baseCacheDir string, customLrcLibUrl string) *LrcLibFetcher {
 	cachePath := filepath.Join(baseCacheDir, lrclibCacheFolder)
 	configdir.MakePath(cachePath)
-	return &LrcLibFetcher{cachePath: cachePath}
+	return &LrcLibFetcher{cachePath: cachePath, customLrcLibUrl: customLrcLibUrl}
 }
 
 func (l *LrcLibFetcher) FetchLrcLibLyrics(name, artist, album string, durationSecs int) (*mediaprovider.Lyrics, error) {
@@ -68,7 +70,9 @@ func (l *LrcLibFetcher) fetchFromServer(name, artist, album string, durationSecs
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "https://lrclib.net/api/get", nil)
+	lrclibUrl := l.getLrclibUrl()
+	fmt.Println(lrclibUrl)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, lrclibUrl, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -91,6 +95,21 @@ func (l *LrcLibFetcher) fetchFromServer(name, artist, album string, durationSecs
 	return parseLrcLibResponse(resp)
 }
 
+// Returns the Lrclib url the fetcher should use, based on the configuration.
+func (l *LrcLibFetcher) getLrclibUrl() string {
+	if l.customLrcLibUrl != "" {
+		u, err := url.JoinPath(l.customLrcLibUrl, "/api/get")
+		if err == nil {
+			// Return custom cunfig url
+			return u
+		}
+
+		log.Printf("Invalid LrcLib URL passed (err: %s). Falling back to default", err)
+	}
+
+	return "https://lrclib.net/api/get"
+}
+
 func parseLrcLibResponse(resp *http.Response) (*mediaprovider.Lyrics, error) {
 	if resp.StatusCode == http.StatusNotFound {
 		return nil, errors.New("lrclib lyrics not found")