package transcript

import (
	"os"
	"strings"
	"testing"
	"time"

	"tea.chunkbyte.com/kato/captioneer/src/captions"
)

func TestTranscriptWritesOnlyFinalCaptionsWithWallClockAndOffsets(t *testing.T) {
	now := time.Date(2026, 7, 17, 12, 34, 56, 123000000, time.UTC)
	sink, err := newWithClock(t.TempDir(), func() time.Time { return now })
	if err != nil {
		t.Fatal(err)
	}
	if err := sink.Publish(captions.Event{Kind: captions.Provisional, Text: "draft"}); err != nil {
		t.Fatal(err)
	}
	if err := sink.Publish(captions.Event{
		Kind: captions.Final, Text: "hello\nthere", StartedAt: time.Second, EndedAt: 2500 * time.Millisecond,
	}); err != nil {
		t.Fatal(err)
	}
	if err := sink.Close(); err != nil {
		t.Fatal(err)
	}
	data, err := os.ReadFile(sink.Path())
	if err != nil {
		t.Fatal(err)
	}
	want := "2026-07-17T12:34:56.123Z [1.00s-2.50s] hello there\n"
	if string(data) != want {
		t.Fatalf("transcript = %q, want %q", data, want)
	}
	if !strings.Contains(sink.Path(), "captioneer-2026-07-17_12-34-56.123.log") {
		t.Fatalf("unexpected transcript path %q", sink.Path())
	}
}