using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using Newtonsoft.Json;

using DocuSign.eSign.Api;
using DocuSign.eSign.Model;
using DocuSign.eSign.Client;

namespace CoreRecipes
{
    class Program
{
    private string INTEGRATOR_KEY = "[key]";
    static void Main(string[] args)
    {
        Program recipes = new Program();
        recipes.listDocumentsAndDownloadTest();
        Console.Read();
    }
    public void listDocumentsAndDownloadTest()
    {
        string username = "[username]";
        string password = "[password]";
        string envelopeId = "envelopid";
        //configureApiClient("www.docusign.net/restapi");
        //http"s://demo.docusign.net/restapi"
        configureApiClient("https://demo.docusign.net/restpi");
        string accountId = loginApi(username, password);
        EnvelopesApi envelopesApi = new EnvelopesApi();
        EnvelopeDocumentsResult docsList = envelopesApi.ListDocuments(accountId, envelopeId);
        Console.WriteLine("EnvelopeDocumentsResult:n{0}", JsonConvert.SerializeObject(docsList));
        int docCount = docsList.EnvelopeDocuments.Count;
        string filePath = null;
        FileStream fs = null;
        for (int i = 0; i < docCount; i++)
        {
            MemoryStream docStream = (MemoryStream)envelopesApi.GetDocument(accountId, envelopeId, docsList.EnvelopeDocuments[i].DocumentId);
            filePath = Path.GetTempPath() + Path.GetRandomFileName() + ".pdf";
            fs = new FileStream(filePath, FileMode.Create);
            docStream.Seek(0, SeekOrigin.Begin);
            docStream.CopyTo(fs);
            fs.Close();
            Console.WriteLine("Envelope Document {0} has been downloaded to:  {1}", i, filePath);
        }
    }
    public void configureApiClient(string basePath)
    {
        ApiClient apiClient = new ApiClient(basePath);
        Configuration.Default.ApiClient = apiClient;
    }
    public string loginApi(string usr, string pwd)
    {
        ApiClient apiClient = Configuration.Default.ApiClient;
        string authHeader = "{"Username":"" + usr + "", "Password":"" + pwd + "", "IntegratorKey":"" + INTEGRATOR_KEY + ""}";
        Configuration.Default.AddDefaultHeader("X-DocuSign-Authentication", authHeader);
        string accountId = null;
        AuthenticationApi authApi = new AuthenticationApi();
        LoginInformation loginInfo = authApi.Login();
        foreach (LoginAccount loginAcct in loginInfo.LoginAccounts)
        {
            if (loginAcct.IsDefault == "true")
            {
                accountId = loginAcct.AccountId;
                break;
            }
        }
        if (accountId == null)
        {
            accountId = loginInfo.LoginAccounts[0].AccountId;
        }
        return accountId;
    }
}