package gallery

import (
	"os"
	"path/filepath"
	"testing"
)

func TestVideoPosterRel(t *testing.T) {
	if got := videoPosterRel("portal/clip.mp4"); got != "portal/clip.jpg" {
		t.Fatalf("got %q", got)
	}
}

func TestIsWebDerivative(t *testing.T) {
	if !isWebDerivative("clip.web.mp4") {
		t.Fatal("expected web derivative")
	}
	if isGalleryMedia("clip.web.mp4") {
		t.Fatal("web derivative must not be listed")
	}
}

func TestList_includesVideo(t *testing.T) {
	dir := t.TempDir()
	album := filepath.Join(dir, "portal")
	if err := os.MkdirAll(album, 0o755); err != nil {
		t.Fatal(err)
	}
	name := "showreel.mp4"
	if err := os.WriteFile(filepath.Join(album, name), []byte("fake"), 0o644); err != nil {
		t.Fatal(err)
	}

	images, err := List(dir)
	if err != nil {
		t.Fatal(err)
	}
	if len(images) != 1 || !images[0].IsVideo || images[0].RelPath != "portal/"+name {
		t.Fatalf("got %+v", images)
	}
}

func TestSelectHero_skipsVideo(t *testing.T) {
	images := []Image{
		{RelPath: "portal/showreel.mp4", IsVideo: true},
		{RelPath: "portal/photo.jpg", IsVideo: false},
	}
	hero, ok := SelectHero(images)
	if !ok || hero.RelPath != "portal/photo.jpg" {
		t.Fatalf("got %+v ok=%v", hero, ok)
	}
}