using System;
using System.Net.Http;
using System.Threading.Tasks;
using InABox.Mobile;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace PRS.Mobile
{
    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class UpdatePage
    {
        
        
        
        public UpdatePage()
        {
            
            InitializeComponent();
            ProgressVisible = true;
            
            Task.Run(async () =>
            {
                bool blatest = await MobileUtils.AppVersion.IsUsingLatestVersion();
                if (!blatest)
                {
                    var info = await MobileUtils.AppVersion.GetLatestVersion(false);
                    Dispatcher.BeginInvokeOnMainThread(() =>
                    {
                        _update.Text = $"Update from {MobileUtils.AppVersion.InstalledVersionNumber} to {info.Version}";
                        _update.IsEnabled = true;
                    });
                }
                else
                {
                    _update.Text = $"Up to date ({MobileUtils.AppVersion.InstalledVersionNumber})";
                    _update.IsEnabled = false;
                }
            });
            
            Task.Run(async () =>
            {
                
                String response = "";
                try
                {
                    using (HttpClient client = new HttpClient())
                    {
                        response = await client.GetStringAsync("https://prsdigital.com.au/updates/prsmobile/Release%20Notes.txt");    
                    }
                }
                catch (Exception eLatest)
                {
                    response = "Error retrieving release notes!";
                }
                
                Device.BeginInvokeOnMainThread(() =>
                {
                    _releaseNotes.Text = response;
                    ProgressVisible = false;
                });
                    
            });
        }
                
        private void _update_OnClicked(object sender, MobileButtonClickEventArgs args)
        {
            MobileUtils.AppVersion.OpenAppInStore();
        }
    }
}