private string CreateHtmlInnerRecursively(IEnumerable <Snippet> snippets, IDictionary <string, NumberingSchema> numbering)
{
var flatContent = new StringBuilder();
Action <Snippet> convert = null;
convert = e =>
{
var builder = e.GetType().GetCustomAttributes(typeof(SnippetElementAttribute), true).OfType <SnippetElementAttribute>().Single();
if (builder.CreateResource)
{
string itemHref = String.Empty;
// BaseType because it's a proxy element; if database context changes behavior, change this
switch (e.GetType().BaseType.Name)
{
case "ImageSnippet":
// pull resource from BLOB storage
if (e.Content != null)
{
itemHref = ((ImageSnippet)e).ItemHref;
var properties = System.Web.Helpers.Json.Decode <ImageProperties>(((ImageSnippet)e).Properties);
var image = ImageUtil.ApplyImageProperties(e.Content, properties);
if (image != null)
{
using (var ms = new MemoryStream())
{
image.Save(ms, ImageFormat.Png);
byte[] bytes = ms.ToArray();
((ImageSnippet)e).ItemHref = CreateImage(this, new CreateImageArguments {
Content = bytes, FileName = itemHref
});
}
}
else
{
// create a placeholder image
var fs = File.ReadAllBytes(HttpContext.Current.Server.MapPath("~/Images/bullet.png"));
((ImageSnippet)e).ItemHref = CreateImage(this, new CreateImageArguments {
Content = fs, FileName = itemHref
});
}
}
break;
}
flatContent.Append(builder.BuildHtml(e, numbering));
}
else
{
flatContent.Append(builder.BuildHtml(e, numbering));
// if resource do not add again
if (e.HasChildren())
{
e.Children.OfType <Snippet>().ToList().ForEach(c => convert(c));
}
}
};
snippets.ToList().ForEach(c => convert(c));
return(flatContent.ToString());
}