Add functions for current status and metadata

pkg/player/playerctl.go

@@ -89,3 +89,19 @@ func Status(onChange func(bool)) error {
 	}
 	return nil
 }
+
+func CurrentMetadata(key string) (string, error) {
+	out, err := exec.Command("playerctl", "metadata", key).Output()
+	if err != nil {
+		return "", err
+	}
+	return string(out), nil
+}
+
+func CurrentStatus() (string, error) {
+	out, err := exec.Command("playerctl", "status").Output()
+	if err != nil {
+		return "", err
+	}
+	return string(out), nil
+}