package providers

import "testing"

func TestMergeResults(t *testing.T) {
	dz := []Result{
		{Provider: "deezer", Title: "Death Race", Subtitle: "Magnetico"},
		{Provider: "deezer", Title: "Celeste (Original Soundtrack)", Subtitle: "Lena Raine"},
	}
	mb := []Result{
		{Provider: "musicbrainz", Title: "Death Magnetic", Subtitle: "Metallica"},
		{Provider: "musicbrainz", Title: "Death Race", Subtitle: "Magnetico"}, // duplicate of a Deezer hit
	}
	got := mergeResults("death magnetic", dz, mb)
	if len(got) != 3 {
		t.Fatalf("want duplicates dropped, got %d results: %+v", len(got), got)
	}
	if got[0].Title != "Death Magnetic" {
		t.Errorf("best match should come first, got %q", got[0].Title)
	}
	for _, r := range got {
		if r.Title == "Death Race" && r.Provider != "deezer" {
			t.Errorf("duplicate should keep the Deezer copy (it has previews)")
		}
	}
}

func TestMatching(t *testing.T) {
	titles := []struct {
		a, b string
		want bool
	}{
		{"Dreams", "Dreams (2004 Remaster)", true},
		{"Death Magnetic", "Death Magnetic", true},
		{"Celeste: Original Soundtrack", "Celeste (Original Soundtrack)", true},
		{"Hey Ya!", "Hey Ya", true},
		{"Dreams", "Sweet Dreams", false},
		{"Nights", "Nights in White Satin", true},
		{"Blonde", "Blond", false},
	}
	for _, c := range titles {
		if got := sameTitle(c.a, c.b); got != c.want {
			t.Errorf("sameTitle(%q, %q) = %v, want %v", c.a, c.b, got, c.want)
		}
	}
	artists := []struct {
		a, b string
		want bool
	}{
		{"Metallica", "METALLICA", true},
		{"Frank Ocean", "Frank Ocean feat. André 3000", true},
		{"Queen", "Queens of the Stone Age", false},
		{"", "Queen", false},
	}
	for _, c := range artists {
		if got := sameArtist(c.a, c.b); got != c.want {
			t.Errorf("sameArtist(%q, %q) = %v, want %v", c.a, c.b, got, c.want)
		}
	}
}

func TestSameThing(t *testing.T) {
	for _, c := range []struct {
		a, b string
		want bool
	}{
		{"Dreams", "Dreams (2004 Remaster)", true},
		{"DM (old)", "Death Magnetic", false},
		{"Blonde", "Blond", false},
		{"Hamilton", "Getting On", false},
		{"The Legend of Zelda: Breath of the Wild", "Zelda: Breath of the Wild", true},
		{"", "Anything", true},
	} {
		if got := SameThing(c.a, c.b); got != c.want {
			t.Errorf("SameThing(%q, %q) = %v, want %v", c.a, c.b, got, c.want)
		}
	}
}