using System;

using System.Collections.Generic;

using System.Configuration;

using System.Linq;

using System.Text;

using System.Web;

using System.Web.UI;

using uComponents.Core;

using uComponents.DataTypes.Shared.Extensions;

using umbraco;

using umbraco.cms.businesslogic.datatype;

using Umbraco.Web;

using umbraco.editorControls;

using Umbraco.Core.IO;

namespace uComponents.UI

{

/// <summary>

/// This module adds the scripts required for the shared ui extensions

/// </summary>

public class uComponentsModule : IHttpModule

{

/// <summary>

/// Include resources from these IResourceSets

/// </summary>

private static List<IResourceSet> sets = new List<IResourceSet> { new UIExtensionResources() };

private static bool _trayPeek;

private static bool _dragAndDrop;

/// <summary>

/// Gets the sets.

/// </summary>

/// <value>The sets.</value>

public static IList<IResourceSet> Sets { get { return sets; } }

#region IHttpModule Members

/// <summary>

/// Disposes of the resources (other than memory) used by the module that implements <see cref="T:System.Web.IHttpModule"/>.

/// </summary>

public void Dispose()

{

}

/// <summary>

/// Initializes a module and prepares it to handle requests.

/// </summary>

/// <param name="context">An <see cref="T:System.Web.HttpApplication"/> that provides access to the methods, properties, and events common to all application objects within an ASP.NET application</param>

public void Init(HttpApplication context)

{

//Item info service

context.BeginRequest += (sender, e) =>

{

ItemInfoService.ProcessRequest((HttpApplication)sender);

};

#region Script injection (for drag & drop etc.)

string umbracoPath = GlobalSettings.Path + "/";

string enableDragAndDrop = ConfigurationManager.AppSettings[Constants.AppKey_DragAndDrop] ?? "true";

string enableTrayPeek = ConfigurationManager.AppSettings[Constants.AppKey_TrayPeek] ?? "true";

bool.TryParse(enableDragAndDrop, out _dragAndDrop);

bool.TryParse(enableTrayPeek, out _trayPeek);

context.PostMapRequestHandler += (sender, e) =>

{

if (context.Request.CurrentExecutionFilePath.StartsWith(umbracoPath, StringComparison.CurrentCultureIgnoreCase)) // Fix for #12951

{

if (context.Request.CurrentExecutionFilePath.Equals(umbracoPath + "default.aspx", StringComparison.InvariantCultureIgnoreCase))

{

// /umbraco/default.aspx forwards to umbraco.aspx with Server.Transfer. That's evil, because then the code below doesn't work because it doesn't have the right page, i.e. umbraco.aspx

// Until a better solution is found this redirect works well.

context.Response.Redirect("umbraco.aspx");

return;

}

var page = HttpContext.Current.CurrentHandler as Page;

if (page != null && !UmbracoContext.Current.InPreviewMode)

{

page.Load += (s2, e2) =>

IncludeScripts(page, (reg) => reg.Filters == null || reg.Filters.Any(x => x.IsMatch(context.Request.CurrentExecutionFilePath)));

}

}

};

#endregion

}

#endregion

/// <summary>

/// Includes the scripts.

/// </summary>

/// <param name="page">The page.</param>

/// <param name="filter">The filter.</param>

protected static void IncludeScripts(Page page, Func<ResourceRegistration, bool> filter)

{

//BUG Fix: Unfortunately, CD doesn't work with all IIS's in all versions

//var loader = ClientDependencyLoader.Instance;

//if (loader == null)

//{

// if (page.Header != null)

// {

// //If the page doesn't have a ClientDependecyLoader already, and doesn't have a head with runat="server" we don't bother

// page.Header.Controls.Add(loader = new ClientDependencyLoader());

// }

//}

//Item info service

page.ClientScript.RegisterClientScriptBlock(page.GetType(), "uComponentsItemInfoService",

"var UC_ITEM_INFO_SERVICE = \"" + ItemInfoService.ServicePath + "\";" +

//Used when inserting images in content editors

"var UC_IMAGE_SERVICE = \"" +

IOHelper.ResolveUrl(SystemDirectories.Umbraco) +

"/controls/Images/ImageViewerUpdater.asmx/UpdateImage\";", true);

var ucSettings = new StringBuilder();

ucSettings.Append("var UC_SETTINGS = { ENABLE_DRAG_AND_DROP: ").Append(_dragAndDrop ? "true" : "false")

.Append(", ENABLE_TRAY_PEEK: ").Append(_trayPeek ? "true" : "false").Append("};");

page.ClientScript.RegisterClientScriptBlock(page.GetType(), "uComponentsSettings",

ucSettings.ToString(), true);

//// int userPriority = 100; // Core umbraco stuff must be added first

var resourcesHtml = new StringBuilder();

resourcesHtml.Append("<!-- uComponents -->");

foreach (var set in sets)

{

foreach (var reg in set.Resources)

{

if (filter(reg))

{

page.RegisterEmbeddedClientResource(

set.GetType(),

reg.ResourceName,

reg.IsScript ? ClientDependencyType.Javascript : ClientDependencyType.Css);

//loader.RegisterDependency(userPriority++, resourceUrl,

// reg.IsScript ? ClientDependencyType.Javascript : ClientDependencyType.Css);

}

}

}

}

/// <summary>

/// Use this method to include drag and drop and shortcut scripts on the page specified

/// </summary>

public void IncludeScripts(Page page)

{

string[] purposes = { "*", "trees", "shortucts" };

IncludeScripts(page, (reg) => reg.Purposes == null || reg.Purposes.Any(x => purposes.Any(p => p == x)));

}

}

}