using System;
using System.IO;
using System.Reflection.Metadata.Ecma335;
using System.Runtime.Serialization.Formatters;
using System.Text;
using System.Text.RegularExpressions;
using LibGit2Sharp.Handlers;
using ln.logging;
using ln.type;

namespace ln.build
{

    public class DotNetPipeLine : PipeLine
    {
        static Regex regexPackages = new Regex(".*(Successfully created package '(.*)').*");

        public DotNetPipeLine()
        {
            AddStep(new RestoreStep());
            AddStep(new CleanStep());

            BuildStep buildStep = new BuildStep();
            buildStep.OnCommandExited += FilterPackageFilenames;
            AddStep(buildStep);

            AddStep(new TestStep());

            PackStep packStep = new PackStep();
            packStep.OnCommandExited += FilterPackageFilenames;
            AddStep(packStep);

            AddStep(new PublishStep());
        }
        
        void FilterPackageFilenames(CommandStep commandStep, CIJob job, int exitCode)
        {
            Stream outStream = job.GetLogStream(commandStep.DefaultLogFileName);
            outStream.Position = 0;

            job.Logger.Log(LogLevel.INFO,"filterPackageFilenames(): started");

            String consoleOutput = Encoding.UTF8.GetString(outStream.ReadToEnd());

            MatchCollection matches = regexPackages.Matches(consoleOutput);
            foreach (Match match in matches)
            {
                Logging.Log(LogLevel.INFO,"filterPackageFilenames(): {0}", match.Groups[2].Value);
                job.ExtendVariable("DOTNET_PACKAGES", match.Groups[2].Value);
            }
        }


        class CleanStep : CommandStep
        {
            public CleanStep():base("clean", "dotnet","clean"){ }
        }
        class RestoreStep : CommandStep
        {
            public RestoreStep():base("restore", "dotnet","restore"){ }
        }
        class TestStep : CommandStep
        {
            public TestStep():base("test", "dotnet","test"){ }
        }
        class BuildStep : CommandStep
        {
            public BuildStep():base("build", "dotnet","build"){ }
        }
        class PackStep : CommandStep
        {
            public PackStep():base("pack", "dotnet","pack"){ }
        }
        class PublishStep : CommandStep
        {
            public PublishStep():base("push", "dotnet","nuget", "push", "<filename>", "-s", "<source>", "-k", "<apikey>"){ }

            public override int Run(CIJob job)
            {
                bool success = true;

                CommandRunner.Arguments[4] = "http://nuget.l--n.de/nuget/l--n/v3/index.json";
                CommandRunner.Arguments[6] = "3yAJPMxcaEhb_HP62dxK";

                foreach (string package in job.GetVariable("DOTNET_PACKAGES","").Split(':',StringSplitOptions.RemoveEmptyEntries))
                {
                    CommandRunner.Arguments[2] = package;
                    if (base.Run(job) != 0)
                        success = false;
                }
                return success ? 0 : -1;
            }
        }
        

    }

}