using Newtonsoft.Json;

namespace skyscraper8.Tests.NUnit;

public sealed class VoileOnlineUploader
{
    public static void Upload(VoileOnlineTestPost voileOnlinePost)
    {
        if (_instance == null)
        {
            _instance = new VoileOnlineUploader();
        }

        _instance.PushResult(voileOnlinePost);
    }

    private static VoileOnlineUploader _instance;
    private Thread _uploaderThread;
    private Queue<VoileOnlineTestPost> _queue;
    
    private void PushResult(VoileOnlineTestPost voileOnlinePost)
    {
        if (_queue == null)
            _queue = new Queue<VoileOnlineTestPost>();

        lock (_queue)
        {
            _queue.Enqueue(voileOnlinePost);
        }
        
        if (_uploaderThread == null)
        {
            _uploaderThread = new Thread(PusherThread);
            _uploaderThread.Priority = ThreadPriority.Lowest;
            _uploaderThread.Name = "VoileOnlineUploader";
        }

        switch (_uploaderThread.ThreadState)
        {
            case ThreadState.Unstarted:
                _uploaderThread.Start();
                break;
            case ThreadState.Running:
                break;
            case ThreadState.Stopped:
                _uploaderThread = new Thread(PusherThread);
                _uploaderThread.Priority = ThreadPriority.Lowest;
                _uploaderThread.Name = "VoileOnlineUploader";
                _uploaderThread.Start();
                break;
            default:
                throw new NotImplementedException(String.Format("ThreadState: {0}", _uploaderThread.ThreadState));
        }
    }

    private void PusherThread()
    {
        int numElements = 0;
        lock (_queue)
        {
            numElements = _queue.Count;
        }
        while (numElements > 0)
        {
            VoileOnlineTestPost voileOnlinePost;
            lock (_queue)
            {
                voileOnlinePost = _queue.Dequeue();
            }
            
            string json = JsonConvert.SerializeObject(voileOnlinePost);
            DoPost(json);

            lock (_queue)
            {
                numElements = _queue.Count;
            }
        }
    }

    private void DoPost(string json)
    {
    }
}