use propper logger

internal/gamefile.go

@@ -2,6 +2,7 @@ package oplcli
 
 import (
 	"fmt"
+	"log/slog"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -11,7 +12,8 @@ import (
 func scanGameFileForID(filename string) (string, error) {
 	file, err := os.Open(filename)
 	if err != nil {
-		return "", fmt.Errorf("failed to open file: %w", err)
+		slog.Error("Failed to open file", "file", filename, "err", err)
+		return "", err
 	}
 	defer file.Close()
 
@@ -20,11 +22,13 @@ func scanGameFileForID(filename string) (string, error) {
 
 	n, err := file.Read(buffer)
 	if err != nil && n == 0 {
-		return "", fmt.Errorf("failed to read file: %w", err)
+		slog.Error("Failed to read file", "file", file, "err", err)
+		return "", err
 	}
 
 	id, found := scanBufferForID(buffer[:n])
 	if !found {
+		slog.Error("No PS2 ID found in the file", "file", file)
 		return "", fmt.Errorf("no PS2 game ID found in file")
 	}