<#@ template debug="false" hostspecific="true" language="C#" #>
<#@ assembly name="System.Core" #>
<#@ assembly name="VSLangProj" #>
<#@ assembly name="EnvDTE" #>
<#@ import namespace="EnvDTE" #>
<#@ import namespace="System" #>
<#@ import namespace="System.Linq" #>
<#@ import namespace="System.IO" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System.Collections.Generic" #>
<#@ output extension=".ts" #>
<#

    Action<ProjectItem, string, List<ProjectItem>> getAllFilesInternal = null;
    getAllFilesInternal = (item, mask, result) => {
        if (item.FileCount == 0)
            return;

        var fileName = item.FileNames[0];
        if (fileName.EndsWith(mask))
        {
            result.Add(item);
        }
        else
        {
            foreach (ProjectItem subItem in item.ProjectItems)
            {
                getAllFilesInternal(subItem, mask, result);
            }
        }
    };

    Action<ProjectItems, string, List<ProjectItem>> getAllFiles = (items, mask, result) => {
        result.Clear();
        foreach (ProjectItem item in items) {
            getAllFilesInternal(item, mask, result);
        }
    };



    Func<string, string, string> makeRelativePath = (String fromPath, String toPath) =>
    {
        if (String.IsNullOrEmpty(fromPath)) throw new ArgumentNullException("fromPath");
        if (String.IsNullOrEmpty(toPath))   throw new ArgumentNullException("toPath");

        Uri fromUri = new Uri(fromPath);
        Uri toUri = new Uri(toPath);

        Uri relativeUri = fromUri.MakeRelativeUri(toUri);
        String relativePath = Uri.UnescapeDataString(relativeUri.ToString());

        return relativePath.Replace('/', Path.DirectorySeparatorChar);
    };

    Dictionary<string, ProjectItem> classesInFiles = new Dictionary<string, ProjectItem>();
    Dictionary<string, string> hierarchy = new Dictionary<string, string>();
    Dictionary<ProjectItem, bool> emitted = new Dictionary<ProjectItem, bool>();

    Action<string> emitHierarchy = null;
    emitHierarchy = (className) => {
        if (!classesInFiles.ContainsKey(className))
            return;
        var pi = classesInFiles[className];
        if (emitted.ContainsKey(pi))
        {
            return;
        }
        if (hierarchy.ContainsKey(className)) {
            var parent = hierarchy[className];
            if (!String.IsNullOrEmpty(parent))
                emitHierarchy(parent);
        }
#>
///<reference path="<#=makeRelativePath(Host.ResolvePath("") + "\\", pi.FileNames[0])#>"/>
<#

        emitted.Add(pi, true);
    };

    Action<ProjectItem, string> writeReferences = null;
    writeReferences = (ProjectItem item, string mask) => {
        if (item.FileCount == 0)
            return;

            var fileName = item.FileNames[0];
            if (fileName.EndsWith(mask))
            {
#>
///<reference path="<#=makeRelativePath(Host.ResolvePath("") + "\\", fileName)#>"/>
<#
            } else {
                foreach (ProjectItem subItem in item.ProjectItems)  {
                    writeReferences(subItem, mask);
                }
            }
    };

    var projectName = new DirectoryInfo(Host.ResolvePath("")).Name;

    var serviceProvider = this.Host as IServiceProvider;
    var dte = serviceProvider.GetService(typeof(DTE)) as DTE;

    var inheritancePattern = new System.Text.RegularExpressions.Regex("class ([^ <]*)( extends ([^ <]*))*");

    foreach (Project p in dte.Solution.Projects)
    {
        if (p.Name == projectName)
        {

            foreach (VSLangProj.Reference reference in ((VSLangProj.VSProject)p.Object).References)
            {
                if (reference.SourceProject == null)
                    continue;

                foreach (ProjectItem item in reference.SourceProject.ProjectItems)
                {
                    if (item.FileCount == 0)
                        continue;

                    writeReferences(item, "References.ts");
                }
            }


            List<ProjectItem> tsFiles = new List<ProjectItem>();
            getAllFiles(p.ProjectItems, ".ts", tsFiles);

            foreach (ProjectItem item in tsFiles)
            {
                if (item.FileNames[0].EndsWith(".d.ts"))
                    continue;
                var file = System.IO.File.ReadAllText(item.FileNames[0]);
                var match = inheritancePattern.Match(file);

                if (match.Groups.Count > 0)
                {
                    string className = match.Groups[1].Value;
                    string parentName = null;
                    if (match.Groups.Count > 2)
                    {
                        parentName = match.Groups[3].Value;
                    }
                    if (string.IsNullOrEmpty(className))
                        continue;

                    if (classesInFiles.ContainsKey(className)) {
                        throw new Exception(className + " is duplicite");
                    }
                    classesInFiles.Add(className, item);
                    hierarchy.Add(className, parentName);

                }
            }


            tsFiles = new List<ProjectItem>();
            getAllFiles(p.ProjectItems, ".ts", tsFiles);

            foreach (ProjectItem item in tsFiles)
            {
                if (item.FileCount > 0 && item.FileNames[0].EndsWith("References.ts"))
                    continue;

                var fileName = item.FileNames[0];

                bool contains = false;
                foreach (var i in classesInFiles.Values) {
                    if (i.FileCount == 0)
                        continue;
                    if (i.FileNames[0].Equals(fileName)) {
                        contains = true;
                        break;
                    }
                }
                if (!contains)
                {
                    if (fileName.EndsWith(".ts"))
                    {
#>
///<reference path="<#=makeRelativePath(Host.ResolvePath("") + "\\", fileName)#>"/>
<#
                    }
                }

            }

            foreach (string className in hierarchy.Keys)
            {
                emitHierarchy(className);
            }




        }
    }
#>