using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.Http;

namespace AyaNova.PlugIn.QBOI
{
    public partial class GetToken : Form
    {
        static readonly HttpClient client = new HttpClient();
        string QBOI2_SESSION_TOKEN = "";

        public string LastError { get; set; }
        public string FetchedToken { get; set; }

        public GetToken(string sessionID)
        {
            InitializeComponent();
            QBOI2_SESSION_TOKEN = sessionID;
            LastError = string.Empty;
            FetchedToken = string.Empty;
        }

        private async void GetToken_Load(object sender, EventArgs e)
        {
            while (string.IsNullOrEmpty(FetchedToken)  && string.IsNullOrEmpty(LastError))
            {
                await TryFetchAsync();
            }
        }

        private async Task TryFetchAsync()
        {
            try
            {
                HttpResponseMessage response = await client.GetAsync("https://qboauth.ayanova.com/fetch/" + QBOI2_SESSION_TOKEN);
                if (response.IsSuccessStatusCode)
                {
                    //set the token and return
                    FetchedToken = await response.Content.ReadAsStringAsync();
                    this.DialogResult = DialogResult.OK;
                    this.Close();
                }

                if (response.StatusCode != System.Net.HttpStatusCode.NotFound)
                {
                    response.EnsureSuccessStatusCode();//throw exception, is unexpected result
                }
            }
            catch (HttpRequestException err)
            {
                LastError = err.Message;
                this.DialogResult = DialogResult.Cancel;
                this.Close();
            }
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {
            LastError = "User selected CANCEL when attepting to fetch token";
            this.DialogResult = DialogResult.Cancel;
            this.Close();

        }





    }
}