using System;
using System.Net.Http;
using Newtonsoft.Json;
using System.Text;
using System.Collections.Generic;

using Xamarin.Forms;

namespace Hackatown
{
    public partial class Login : ContentPage
    {
        public Login()
        {
            InitializeComponent();
            NavigationPage.SetHasNavigationBar(this, false);
            usernameEntry.Completed += (s, e) => passwordEntry.Focus();
            passwordEntry.Completed += BtnLogin_Clicked;
            btnLogin.Clicked += BtnLogin_Clicked;
        }

        async void BtnLogin_Clicked(object sender, EventArgs e)
        {
           btnLogin.IsEnabled = false;
            try
            {
                var client = new HttpClient();
                client.BaseAddress = new Uri("https://lassondehacks.io:8080/");

                string usernameLabel = "\"" + "username" + "\"";
                string passwordLabel = "\"" + "password" + "\"";
                string username = "\"" + usernameEntry.Text + "\"";
                string password = "\"" + passwordEntry.Text + "\"";

                string jsonData = @"{" + usernameLabel + " : " + username + ", " + passwordLabel + " : " + password + "}";

                var content = new StringContent(jsonData, Encoding.UTF8, "application/json");
                HttpResponseMessage response = await client.PostAsync("/auth/login", content);
                var result = await response.Content.ReadAsStringAsync();
                AuthentificationDecrypter auth = JsonConvert.DeserializeObject<AuthentificationDecrypter>(result);
                if (auth.success)
                {
                    await Navigation.PushModalAsync(new MasterPage(auth));
                    btnLogin.IsEnabled = true;
                    usernameEntry.Text = "";
                    passwordEntry.Text = "";
                }
                else {
                    IsBusy = false;
                    XFToast.LongMessage("Erreur de connexion, nom d'utilisateur ou mot de passe incorrect");
                    btnLogin.IsEnabled = true;
                    passwordEntry.Text = "";
                }
            }
            catch(Exception exep) {
                IsBusy = false;
                XFToast.LongMessage("Erreur de connexion");
                btnLogin.IsEnabled = true;

            }
        }
    }
}