using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.AspNetCore.SignalR;
using Microsoft.Extensions.Logging;
using OpenCvSharp;
using Squirrowse.Core.Models;
using Squirrowse.Core.Services;

namespace Squirrowse.Service.Hubs
{
    public class StreamHub : Hub, IStreamHub //fujka
    {
        private readonly ILogger<StreamHub> logger;
        private readonly IStreamManager manager;

        public StreamHub(ILogger<StreamHub> logger, IStreamManager manager)
        {
            this.logger = logger;
            this.manager = manager;
        }

        public async Task AddUser(string UserName, ConnectionType type)
        {
            await manager.AddUser(Context.ConnectionId, UserName,type);
            logger.LogInformation($"{nameof(AddUser)}: {UserName} of {type}");

        }


        public async Task AddToGroup(Groups group, string user = "")
        {
            var connectionId = string.IsNullOrWhiteSpace(user) ? Context.ConnectionId : user;
            await Groups.AddToGroupAsync(connectionId, group.ToString());
            logger.LogInformation($"{nameof(AddToGroup)}: {connectionId} joined to {group}");
        }

        /// <summary>
        ///     USE ONLY FOR DEBUG
        /// </summary>
        /// <param name="act"></param>
        /// <returns>DESTRUCTION</returns>
        public async Task ExecCommandOnAll(string command, object[] act)
        {
            await Clients.All.SendCoreAsync(command, act);
        }

        public async Task RemoveFromGroup(Groups group, string user = "")
        {
            var connectionId = string.IsNullOrWhiteSpace(user) ? Context.ConnectionId : user;
            await Groups.RemoveFromGroupAsync(connectionId, group.ToString());
            logger.LogInformation($"{nameof(AddToGroup)}: {connectionId} joined to {group}");
        }

        public async Task Startstream(string clientId)
        {
            var client = Clients.Client(clientId);

            await client.SendAsync("Start");
        }


        public async Task StopStream(string clientId)
        {
            var client = Clients.Client(clientId);

            await client.SendAsync("Stop");
        }

        public async Task UploadByteStream(IAsyncEnumerable<byte[]> stream)
        {
            foreach (var user in manager.getServerSideUsers())
            {
                await Clients.Client(user.ConnectionId).SendAsync("RecData", stream);
            }
            await foreach (var frame in stream) 
            {
                logger.LogInformation($"Got frame size: {frame.Length} ");
                 await Task.Delay(100); //leave some delay for debug purpose 
            }
        }

        public async Task<IEnumerable<User>> GetListOfTypeUser(ConnectionType t)
        {
            if (t == ConnectionType.Client) return manager.getClientSideUsers();
            if (t == ConnectionType.Server) return manager.getServerSideUsers();
            throw new Exception("not found") ;
        }

        public async Task<IEnumerable<User>> GetAllUsers()
        {
            return manager.getAllUsers();
        }
    }
}