package theming

import (
	"testing"
)

func TestListDiscoversThemes(t *testing.T) {
	themes := List()
	if len(themes) == 0 {
		t.Fatal("no themes discovered")
	}
	for _, th := range themes {
		if th.ID == "" || th.DisplayName == "" || th.NvChadTheme == "" {
			t.Errorf("incomplete theme: %+v", th)
		}
	}
}

func TestGetKnownThemeReturnsMatch(t *testing.T) {
	got, ok := Get("gruvbox")
	if !ok {
		t.Fatal("gruvbox should exist")
	}
	if got.ID != "gruvbox" || got.DisplayName == "" || got.NvChadTheme != "gruvbox" {
		t.Fatalf("got %+v", got)
	}
}

func TestGetUnknownThemeReturnsFalse(t *testing.T) {
	if _, ok := Get("does-not-exist"); ok {
		t.Fatal("bogus id should return ok=false")
	}
}

func TestListIsSortedByID(t *testing.T) {
	themes := List()
	for i := 1; i < len(themes); i++ {
		if themes[i].ID < themes[i-1].ID {
			t.Fatalf("not sorted: %s before %s", themes[i-1].ID, themes[i].ID)
		}
	}
}