using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Microsoft.VisualStudio.SharePoint;

using EnvDTE;

using VSLangProj;



namespace CKS.Dev.VisualStudio.SharePoint.Deployment.QuickDeployment

{

    /// <summary>

    /// Extensions to the ISharePointProjectItem object.

    /// </summary>

    public static class ISharePointProjectItemExtensions

    {

        #region Methods



        /// <summary>

        /// Gets all features in the given project whether packaged or not that contain this SPI.

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="project">The current project.</param>

        /// <returns>Returns all features in the given project.</returns>

        public static List<ISharePointProjectFeature> ParentFeaturesInProject(this ISharePointProjectItem item, ISharePointProject project)

        {

            List<ISharePointProjectFeature> features = new List<ISharePointProjectFeature>();

            features.AddRange(

                  from feature

                    in project.Features

                  where feature.ProjectItems.Contains(item)

                  select feature

                );

            return features;

        }



        /// <summary>

        /// Determines if this SPI is packaged in the given project directly (i.e. not as part of a feature).

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="project">The current project.</param>

        /// <returns>Returns true if this SPI is packaged in the given project directly (i.e. not as part of a feature).</returns>

        public static bool IsDirectPartOfProjectPackage(this ISharePointProjectItem item, ISharePointProject project)

        {

            return project.Package.ProjectItems.Contains(item);

        }



        /// <summary>

        /// Determines if this SPI is packaged in any project in the solution directly (i.e. not as part of a feature).

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="service">The sharepoint project service.</param>

        /// <returns>Returns true if this SPI is packaged in any project in the solution directly (i.e. not as part of a feature).</returns>

        public static bool IsDirectPartOfAnyProjectPackage(this ISharePointProjectItem item, ISharePointProjectService service)

        {

            return service.Projects.Any(p => p.Package.ProjectItems.Contains(item));

        }



        /// <summary>

        /// Determines if this SPI is included inside a feature that is itself packaged in the given project.

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="project">The current project.</param>

        /// <returns>Returns true if this SPI is included inside a feature that is itself packaged in the given project.</returns>

        public static bool IsPartOfPackagedProjectFeature(this ISharePointProjectItem item, ISharePointProject project)

        {

            return item.ParentFeaturesInProject(project).Any(feature => feature.IsPartOfProjectPackage(project));

        }



        /// <summary>

        /// Determines if this SPI is included inside a feature that is packaged in any project in the solution.

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="service">The sharepoint project service.</param>

        /// <returns>Returns true if this SPI is included inside a feature that is packaged in any project in the solution.</returns>

        public static bool IsPartOfAnyPackagedProjectFeature(this ISharePointProjectItem item, ISharePointProjectService service)

        {

            foreach (ISharePointProject project in service.Projects)

            {

                if (item.IsPartOfPackagedProjectFeature(project))

                {

                    return true;

                }

            }



            return false;

        }



        /// <summary>

        /// Determines if this SPI is packaged in the given project whether by feature or direct (e.g. mapped folder).

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="project">The current project.</param>

        /// <returns>Returns true if this SPI is packaged in the given project whether by feature or direct (e.g. mapped folder).</returns>

        public static bool IsPartOfProjectPackage(this ISharePointProjectItem item, ISharePointProject project)

        {

            return item.IsDirectPartOfProjectPackage(project) || item.IsPartOfPackagedProjectFeature(project);

        }



        /// <summary>

        /// Determines if this SPI is packaged in any project in the solution whether by feature or direct (e.g. mapped folder).

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="service">The sharepoint project service.</param>

        /// <returns>Returns true if this SPI is packaged in any project in the solution whether by feature or direct (e.g. mapped folder).</returns>

        public static bool IsPartOfAnyProjectPackage(this ISharePointProjectItem item, ISharePointProjectService service)

        {

            return item.IsDirectPartOfAnyProjectPackage(service) || item.IsPartOfAnyPackagedProjectFeature(service);

        }



        /// <summary>

        /// Retrieves all projects in the solution where this SPI is packaged.

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="service">The sharepoint project service.</param>

        /// <returns>Returns all projects in the solution where this SPI is packaged.</returns>

        public static IEnumerable<ISharePointProject> GetProjectsWhereInPackage(this ISharePointProjectItem item, ISharePointProjectService service)

        {

            List<ISharePointProject> pkgProjects = new List<ISharePointProject>();



            foreach (ISharePointProject project in service.Projects)

            {

                if (item.IsPartOfProjectPackage(project))

                {

                    pkgProjects.Add(project);

                }

            }



            return pkgProjects;

        }



        /// <summary>

        /// Retrieves all packaged features this SPI is a part of within a specific project.

        /// </summary>

        /// <param name="item">The ISharePointProjectItem being extended.</param>

        /// <param name="project">The current project.</param>

        /// <returns>Returns all packaged features this SPI is a part of within a specific project.</returns>

        public static IEnumerable<ISharePointProjectFeature> GetFeaturesWhereInPackage(this ISharePointProjectItem item, ISharePointProject project)

        {

            return item.ParentFeaturesInProject(project).Where(feature => feature.IsPartOfProjectPackage(project));

        }



        /// <summary>

        /// Converts to project item.

        /// </summary>

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

        /// <returns></returns>

        public static ProjectItem ConvertToProjectItem(this ISharePointProjectItem item)

        {

            return item.DefaultFile.ProjectItem.Project.ProjectService.Convert<ISharePointProjectItemFile, ProjectItem>(item.DefaultFile);

        }



        /// <summary>

        /// Converts to VS project item.

        /// </summary>

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

        /// <returns></returns>

        public static VSProjectItem ConvertToVSProjectItem(this ISharePointProjectItem item)

        {

            ProjectItem dteItem = item.DefaultFile.ProjectItem.Project.ProjectService.Convert<ISharePointProjectItemFile, ProjectItem>(item.DefaultFile);

            return dteItem.Object as VSProjectItem; 

        }



        #endregion

    }

}