using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Xml.Linq;

namespace MonoBuildScriptGenerator

{

class Program

{

private static XNamespace ns = "http://schemas.microsoft.com/developer/msbuild/2003";

static IEnumerable<string> GetIncludes(IEnumerable<XElement> itemGroups, string name)

{

return itemGroups

.SelectMany(x => x.Elements(ns + name).Attributes("Include"))

.Where(x => x != null)

.Select(x => x.Value);

}

static IEnumerable<XElement> GetItemGroups(XDocument document)

{

return document.Root.Elements(ns + "ItemGroup");

}

static Project LoadProject(string csproj)

{

var path = Path.GetDirectoryName(csproj);

var doc = XDocument.Load(csproj);

var itemGroups = GetItemGroups(doc);

return new Project(

csproj,

GetIncludes(itemGroups, "Reference"),

GetIncludes(itemGroups, "Compile")

.Select(x => Path.IsPathRooted(x) ? x : Path.Combine(path, x)),

null,

null,

GetIncludes(itemGroups, "None"));

}

static string CreateRefArg(Project project)

{

return string.Join(" ", project.Reference.Select(x => "-r:" + x));

}

static string CreateCompileArgs(Project project)

{

return string.Join(" ", project.Compile.Select(x => "\"" + x + "\""));

}

static void Main(string[] args)

{

var projects = args[0]

.Split(',')

.Select(LoadProject)

.ToArray();

var outFile = args[1];

var script = args[2];

var mainProject = projects.First();

var asmInfo = @"\assemblyinfo.cs";

var assemblyInfo = mainProject.Compile

.FirstOrDefault(x => x.ToLower().EndsWith(asmInfo));

var mergedReference = projects.SelectMany(x => x.Reference).Distinct();

var mergedCompile = projects

.SelectMany(x => x.Compile)

.Where(x => !x.ToLower().EndsWith(asmInfo) || x == assemblyInfo)

.Distinct();

var mergedCopies = projects.SelectMany(x => x.Copies).Distinct();

var mergedProject = new Project(

mainProject.CSProj,

mergedReference,

mergedCompile,

outFile,

new [] { "MONO", "DEBUG", "TRACE" },

mergedCopies);

var generator = new WindowsBuildScriptGenerator();

var cmd = generator.CreateScript(mergedProject);

File.WriteAllText(script, cmd);

}

}

}