secure-sharing/MVCTemplate/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(action: "Link", controller: "Home", values: new { id = @Model.message.Id }, protocol: "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>