#r "Newtonsoft.Json"
#r "System.Configuration"

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Microsoft.TeamFoundation.Build.WebApi;
using Microsoft.VisualStudio.Services.Common;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

public static async Task<object> Run(HttpRequestMessage req, TraceWriter log)
{
    string jsonContent = await req.Content.ReadAsStringAsync();

    // Deserialize Json
    var jsonObject = JsonConvert.DeserializeObject<VSTSWebHook>(jsonContent);

    // From ApplicationSettings
    var vstsUser = ConfigurationManager.AppSettings["VstsUser"];
    var vstsPassword = ConfigurationManager.AppSettings["VstsPassword"];

    // Create VSTS Connection from Json Value
    var project = new Guid(jsonObject.resource.definition.project.id);
    var definitionId = jsonObject.resource.definition.id;
    var result = jsonObject.resource.result;
    var buildId = jsonObject.resource.id;
    var build = new BuildHttpClient(new Uri("https://<YOUR TENANT>.VisualStudio.com/DefaultCollection/"), new VssBasicCredential(vstsUser, vstsPassword));

    // Exception will happen at here.
    // Obrain definition from VSTS
    var buildDefinition = await build.GetDefinitionAsync(project, definitionId);

    return req.CreateResponse(HttpStatusCode.OK, new {
        body = $"Test Complete.",
    });
}

public class VSTSWebHook
{
    public string subscriptionId { get; set; }
    public int notificationId { get; set; }
    public string id { get; set; }
    public string eventType { get; set; }
    public string publisherId { get; set; }
    public Message message { get; set; }
    public Detailedmessage detailedMessage { get; set; }
    public Resource resource { get; set; }
    public string resourceVersion { get; set; }
    public Resourcecontainers resourceContainers { get; set; }
    public DateTime createdDate { get; set; }
}

public class Message
{
    public string text { get; set; }
    public string html { get; set; }
    public string markdown { get; set; }
}

public class Detailedmessage
{
    public string text { get; set; }
    public string html { get; set; }
    public string markdown { get; set; }
}

public class Resource
{
    public int id { get; set; }
    public string status { get; set; }
    public string result { get; set; }
    public DateTime queueTime { get; set; }
    public DateTime startTime { get; set; }
    public DateTime finishTime { get; set; }
    public string url { get; set; }
    public Definition definition { get; set; }
    public string uri { get; set; }
    public string sourceBranch { get; set; }
    public string sourceVersion { get; set; }
    public Queue queue { get; set; }
    public string priority { get; set; }
    public string reason { get; set; }
    public Requestedfor requestedFor { get; set; }
    public Requestedby requestedBy { get; set; }
    public DateTime lastChangedDate { get; set; }
    public Lastchangedby lastChangedBy { get; set; }
    public Orchestrationplan orchestrationPlan { get; set; }
    public Logs logs { get; set; }
    public Repository repository { get; set; }
}

public class Definition
{
    public string type { get; set; }
    public int revision { get; set; }
    public int id { get; set; }
    public string name { get; set; }
    public string url { get; set; }
    public Project project { get; set; }
}

public class Project
{
    public string id { get; set; }
    public string name { get; set; }
    public string url { get; set; }
    public string state { get; set; }
}

public class Queue
{
    public object pool { get; set; }
    public int id { get; set; }
    public string name { get; set; }
}

public class Requestedfor
{
    public string id { get; set; }
    public string displayName { get; set; }
    public string uniqueName { get; set; }
    public string url { get; set; }
    public string imageUrl { get; set; }
}

public class Requestedby
{
    public string id { get; set; }
    public string displayName { get; set; }
    public string uniqueName { get; set; }
    public string url { get; set; }
    public string imageUrl { get; set; }
    public bool isContainer { get; set; }
}

public class Lastchangedby
{
    public string id { get; set; }
    public string displayName { get; set; }
    public string uniqueName { get; set; }
    public string url { get; set; }
    public string imageUrl { get; set; }
    public bool isContainer { get; set; }
}

public class Orchestrationplan
{
    public string planId { get; set; }
}

public class Logs
{
    public int id { get; set; }
    public string type { get; set; }
    public string url { get; set; }
}

public class Repository
{
    public string id { get; set; }
    public string type { get; set; }
    public object clean { get; set; }
    public bool checkoutSubmodules { get; set; }
}

public class Resourcecontainers
{
    public Collection collection { get; set; }
    public Account account { get; set; }
    public Project1 project { get; set; }
}

public class Collection
{
    public string id { get; set; }
}

public class Account
{
    public string id { get; set; }
}

public class Project1
{
    public string id { get; set; }
}

{
 "frameworks": {
   "net46":{
     "dependencies": {
       "Microsoft.TeamFoundationServer.Client" : "14.89.0",
       "Microsoft.VisualStudio.Services.Client" : "14.89.0"
     }
   }
 }
}