package match

import (
	"context"
	"strings"
	"testing"

	"navimigrate/internal/model"
	"navimigrate/internal/navidrome"
)

type fakeSearcher struct {
	tracks []navidrome.Track
}

func (f fakeSearcher) SearchTracks(context.Context, string, int) ([]navidrome.Track, error) {
	return f.tracks, nil
}

func TestNormalizeTransliteratesCyrillic(t *testing.T) {
	got := normalize("детство")
	if got != "detstvo" {
		t.Fatalf("expected detstvo, got %q", got)
	}
}

func TestBuildQueriesIncludesLatinVariant(t *testing.T) {
	m := NewMatcher(fakeSearcher{}, 45)
	q := m.buildQueries(model.Track{
		Title:   "детство",
		Artists: []string{"Rauf & Faik"},
	})

	joined := strings.Join(q, "\n")
	if !strings.Contains(strings.ToLower(joined), "detstvo") {
		t.Fatalf("expected transliterated query to include detstvo, got %v", q)
	}
}

func TestMatchThresholdIsConfigurable(t *testing.T) {
	src := model.Track{
		Title:      "One More Time",
		Artists:    []string{"Daft Punk"},
		DurationMS: 317000,
	}
	candidate := navidrome.Track{
		ID:       "track-1",
		Title:    "One More Time",
		Artist:   "Daft Punk",
		Duration: 317,
	}

	m := NewMatcher(fakeSearcher{tracks: []navidrome.Track{candidate}}, 100)
	res := m.MatchTrack(context.Background(), src)
	if res.Matched {
		t.Fatalf("expected no match with high threshold, score=%.1f", res.Score)
	}

	m = NewMatcher(fakeSearcher{tracks: []navidrome.Track{candidate}}, 0)
	res = m.MatchTrack(context.Background(), src)
	if !res.Matched {
		t.Fatalf("expected match with low threshold, score=%.1f", res.Score)
	}
}