/*  
    A simple udp broadcast library
    Copyright (C) 2024  Mike Nolan

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
    
    I am reachable at tesses@tesses.net
*/
using System;
using System.Threading;
using Eto.Forms;
using Tesses.Broadcast;
namespace Tesses.Broadcast.Eto
{
    public sealed class BroadcastDialog : Dialog<string>
    {
        public BroadcastDialog(string serviceName,int port=6942)
        {
            CancellationTokenSource src=new CancellationTokenSource();
            Title="Pick a device";
            ListBox listBox=new ListBox();
            TextBox url=new TextBox(){PlaceholderText="Url"};
            Button cancel=new Button((sender,e)=>{
                if(!src.IsCancellationRequested)
                {
                    src.Cancel();
                    src.Dispose();
                }
                Close("");
            }){Text="Cancel"};
            Button ok=new Button((sender,e)=>{
                if(!src.IsCancellationRequested)
                {
                    src.Cancel();
                    src.Dispose();
                }
                Close(url.Text);
            }){Text="OK"};
            Shown += async(sender,e)=>{
                await foreach(var item in BroadcastClient.ScanAsync(serviceName,port,src.Token))
                {
                    listBox.Items.Add(item.DeviceName,item.ServiceUrl);
                }
            };
            Closing += (sender,e)=>{
                if(!src.IsCancellationRequested)
                {
                    src.Cancel();
                    src.Dispose();
                }
            };
            DynamicLayout layout=new DynamicLayout();
            layout.BeginVertical();
            layout.BeginHorizontal();
            layout.Add(listBox,true,true);
            layout.EndBeginHorizontal();
            DynamicLayout layout2=new DynamicLayout();
            layout2.BeginVertical();
            layout2.BeginHorizontal();
            layout2.Add(new Label(){Text="Url: "});
            layout2.Add(url,true);
            layout2.EndHorizontal();
            layout2.EndBeginVertical();
            layout2.BeginHorizontal();
            layout2.Add(null,true);
            layout2.Add(ok);
            layout2.Add(cancel);
            layout2.EndHorizontal();
            layout2.EndVertical();
            layout.Add(layout2,true);
            layout.EndHorizontal();
            layout.EndVertical();
            Content=layout;
            
            listBox.SelectedKeyChanged += (sender,e)=>{
                url.Text = listBox.SelectedKey;
            };
            Width=320;
            Height=480;
        }

        
    }
}