using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.VisualStudio.TemplateWizard;
using System.Windows.Forms;
using System.IO;

namespace Cosmos.VS.Package.Templates
{
    public class GenerateCosmosProjectWizard: IWizard
    {
        public void BeforeOpeningFile(EnvDTE.ProjectItem projectItem)
        {
        }

        private static string GetTemplateString()
        {
            var xAsm = typeof(GenerateCosmosProjectWizard).Assembly;
            using (var xStream = xAsm.GetManifestResourceStream(typeof(Cosmos.VS.Wizards.ResHelper), "CosmosProject.Cosmos"))
            {
                if (xStream == null)
                {
                    MessageBox.Show("Could not find template manifest stream!");
                    return null;
                }
                using (var xReader = new StreamReader(xStream))
                {
                    return xReader.ReadToEnd();
                }
            }
        }

        public void ProjectFinishedGenerating(EnvDTE.Project project)
        {
			// read embedded template file
            var xInputString = GetTemplateString();
            if (xInputString == null)
            {
                return;
            }

			// set project extension for reference
			string extension = null;
			switch (project.Kind)
			{
				// VB.NET
				case "{F184B08F-C81C-45F6-A57F-5ABD9991F28F}":
					extension = "vbproj";
					break;
				// C#
				case "{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}":
					extension = "csproj";
					break;
				default:
					// unknown project type
					extension = project.UniqueName.Split('.')[1];
					break;
			}

            xInputString = xInputString.Replace("$KernelGuid$", mGuidKernel.ToString("b"));
            xInputString = xInputString.Replace("$CosmosProjGuid$", mGuidCosmosProj.ToString("b"));
            xInputString = xInputString.Replace("$KernelName$", project.Name);
            xInputString = xInputString.Replace("$CosmosProjectName$", project.Name + "Boot");
			xInputString = xInputString.Replace("$ProjectTypeExtension$", extension);
            var xFilename = Path.GetDirectoryName(project.FullName);
            xFilename = Path.Combine(xFilename, project.Name + "Boot");
            xFilename += ".Cosmos";
            File.WriteAllText(xFilename, xInputString);
            project.DTE.Solution.AddFromFile(xFilename, false);

			// Make .Cosmos project dependent on library project.
			// not working for all people EnvDTE.BuildDependency bd = project.DTE.Solution.SolutionBuild.BuildDependencies.Item(project.Name + "Boot.Cosmos");
            var xEnu = project.DTE.Solution.SolutionBuild.BuildDependencies.GetEnumerator();
            while (xEnu.MoveNext())
            {
                EnvDTE.BuildDependency bd = (EnvDTE.BuildDependency) xEnu.Current;
                if (bd.Project.Name == project.Name + "Boot")
                {
                    bd.AddProject(project.UniqueName);
                    break;
                }
            }

			// found this with macro functionality in VS2010
			dynamic d2 = project.DTE.ActiveWindow.Object;
			d2.GetItem(project.Name + "\\" + project.Name + "Boot").Select(EnvDTE.vsUISelectionType.vsUISelectionTypeSelect);
			project.DTE.ExecuteCommand("Project.SetasStartUpProject");
			// because
			// project.DTE.Solution.SolutionBuild.StartupProjects = new object[] { project.Name + "Boot.Cosmos"}; 
			// didnt work correct
        }

        public void ProjectItemFinishedGenerating(EnvDTE.ProjectItem projectItem)
        {
        }

        public void RunFinished()
        {
        }

        private Guid mGuidKernel;
        private Guid mGuidCosmosProj;

        public void RunStarted(object automationObject, Dictionary<string, string> replacementsDictionary, WizardRunKind runKind, object[] customParams)
        {
            mGuidKernel = Guid.NewGuid();
            mGuidCosmosProj = Guid.NewGuid();
            replacementsDictionary.Add("$KernelGuid$", mGuidKernel.ToString("B"));
            replacementsDictionary.Add("$CosmosProjGuid$", mGuidCosmosProj.ToString("B"));

        }

        public bool ShouldAddProjectItem(string filePath)
        {
            return true;
        }
    }
}