secure-sharing/SecureSharing/Views/Home/Link.cshtml

@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}
@model LinkModel

<div class="text-center">
    @if (!Model.IsValid)
    {
        <p>This link has expired</p>
    }
    else
    {
        @if (Model.Share == true)
        {
            @Url.Action("Link", "Home", new { id = Model.message.Id }, "https")
        }
        else
        {
            <div>
                @if (Model.TimeLeft != null)
                {
                    var time = Model.TimeLeft.Value;
                    if (time.Days > 0)
                    {
                        <p>This message will expire in: @time.ToString("%d") days @time.ToString("%h") hours @time.ToString("%m") minutes</p>
                    }
                    else
                    {
                        <p>This message will expire in: @time.ToString(@"hh\:mm\:ss")</p>
                    }
                }
                else
                {
                    <p>This message will expire when you leave this page</p>
                }
            </div>
        }
        <div>
            Message: @Model.message.Text
        </div>
    }
    <a class="btn btn-light" asp-controller="Home" asp-action="Index">Back</a>

</div>