public async Task <IActionResult> Index(int id)
{
var course = await courseService.GetFullCourseByIdAsync(id);
var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
if (!string.IsNullOrWhiteSpace(userId))
{
ViewBag.IsInShoppingCart = await appCourseListService.IsInListAsync(id, userId, CourseListType.ShoppingCart);
ViewBag.IsInWishList = await appCourseListService.IsInListAsync(id, userId, CourseListType.WishList);
ViewBag.IsPurchased = await appCourseListService.IsPurchasedAsync(id, userId);
}
return(View(course));
}
