use propper logger

internal/art.go

@@ -3,6 +3,7 @@ package oplcli
 import (
 	"fmt"
 	"io"
+	"log/slog"
 	"net/http"
 	"os"
 	"path"
@@ -38,12 +39,21 @@ func getArtUrlForGameFromGithub(gameID string) artUrls {
 	}
 }
 
-func downloadArtForGame(gameID string, targetDir string) error {
-
+func downloadArtForGame(gameID string, targetDir string) {
 	urls := getArtUrlForGameFromGithub(gameID)
 
-	dl := func(url, kind string) (bool, error) {
-		return downloadFile(url, path.Join(targetDir, fmt.Sprintf("%s_%s.png", gameID, kind)))
+	totalDownloads := 0
+
+	dl := func(url, kind string) {
+		file := path.Join(targetDir, fmt.Sprintf("%s_%s.png", gameID, kind))
+		found, err := downloadFile(url, file)
+		if err != nil {
+			slog.Warn("Failed to download art file", "gameID", gameID, "url", url)
+		}
+		if found {
+			slog.Debug("Downloaded art file", "gameID", gameID, "kind", kind, "target", file)
+			totalDownloads++
+		}
 	}
 
 	dl(urls.cover, "COV")
@@ -54,7 +64,11 @@ func downloadArtForGame(gameID string, targetDir string) error {
 	dl(urls.screenshot2, "SRC2")
 	dl(urls.spine, "LAB")
 
-	return nil
+	if totalDownloads == 0 {
+		slog.Error("No art files found", "gameID", gameID)
+	} else {
+		slog.Info("Finished downloading art files", "gameID", gameID, "total", totalDownloads)
+	}
 }
 
 func downloadFile(url, target string) (bool, error) {