package transcription

import (
	"math"
	"testing"
	"time"
)

func TestAdjustLeadSilence(t *testing.T) {
	got := adjustLeadSilence([]Segment{
		{Start: 0.2, End: 1.1, Text: "first"},
		{Start: 1.4, End: 2.0, Text: "second"},
	}, 800*time.Millisecond)

	if got[0].Start != 0 {
		t.Fatalf("first start = %v, want 0", got[0].Start)
	}
	if !near(got[0].End, 0.3) {
		t.Fatalf("first end = %v, want 0.3", got[0].End)
	}
	if !near(got[1].Start, 0.6) {
		t.Fatalf("second start = %v, want 0.6", got[1].Start)
	}
}

func TestNormalizeProviderOrder(t *testing.T) {
	got := normalizeProviderOrder([]string{"whisperx", "qwen", "voxtral", "qwen2-audio"})
	want := []string{ProviderWhisperX, ProviderQwenAudio, ProviderVoxtral}
	if len(got) != len(want) {
		t.Fatalf("providers = %#v, want %#v", got, want)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("providers = %#v, want %#v", got, want)
		}
	}
}

func TestNewWithOptionsBuildsComparisonProviders(t *testing.T) {
	client := NewWithOptions(Options{
		Providers:        []string{"whisperx", "qwen2-audio", "voxtral-small"},
		WhisperXURL:      "http://whisperx",
		QwenAudioBaseURL: "http://qwen",
		VoxtralBaseURL:   "http://voxtral",
	})
	if client == nil {
		t.Fatal("client is nil")
	}
	got := make([]string, 0, len(client.providers))
	for _, provider := range client.providers {
		got = append(got, provider.Name)
	}
	want := []string{ProviderWhisperX, ProviderQwenAudio, ProviderVoxtral}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("providers = %#v, want %#v", got, want)
		}
	}
}

func near(got, want float64) bool {
	return math.Abs(got-want) < 0.000001
}