package player

import (
	"fmt"
	"testing"

	"github.com/lwoodard/rtsp-streamer/internal/logbuf"
)

func TestLastLinePrefersRealMessageOverStatus(t *testing.T) {
	w := logbuf.New(20)
	fmt.Fprintln(w, "Failed to open rtsps://host/x: Connection refused")
	fmt.Fprint(w, "\x1b[KV: 00:00:35 / 00:00:35 (100%)\n") // ANSI-wrapped status
	if got := lastLine(w); got != "Failed to open rtsps://host/x: Connection refused" {
		t.Errorf("lastLine = %q, want the error line", got)
	}
}

func TestLastLineFallsBackToStatusWhenOnlyStatus(t *testing.T) {
	w := logbuf.New(20)
	fmt.Fprint(w, "\x1b[KV: 00:00:20 / 00:00:20 (100%)\n")
	if got := lastLine(w); got != "V: 00:00:20 / 00:00:20 (100%)" {
		t.Errorf("lastLine = %q, want the stripped status line", got)
	}
}

func TestLastLineNil(t *testing.T) {
	if got := lastLine(nil); got != "" {
		t.Errorf("lastLine(nil) = %q, want empty", got)
	}
}