using Microsoft.AspNetCore.Components;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.SignalR.Client;

namespace FruitBankHybrid.Shared.Services
{

    public class SignalRService : IAsyncDisposable, ISignalRService
    {
        private HubConnection _hubConnection;
        private readonly NavigationManager _navigationManager;

        public event Action<string, string>? MessageReceived;

        public SignalRService(NavigationManager navigationManager)
        {
            _navigationManager = navigationManager;
        }

        public async Task InitializeAsync()
        {
            // Build the connection (assuming same domain as Blazor app, otherwise use full URL)
            _hubConnection = new HubConnectionBuilder()
                .WithUrl(_navigationManager.ToAbsoluteUri("https://localhost:59579/fbhub"))
                .WithAutomaticReconnect()
                .Build();

            // Register incoming handler
            _hubConnection.On<string, string>("ReceiveMessage", (user, message) =>
            {
                MessageReceived?.Invoke(user, message);
            });

            await _hubConnection.StartAsync();
        }

        public async Task SendMessageAsync(string user, string message)
        {
            if (_hubConnection.State == HubConnectionState.Connected)
                await _hubConnection.InvokeAsync("SendMessage", user, message);
        }

        public async ValueTask DisposeAsync()
        {
            if (_hubConnection is not null)
            {
                await _hubConnection.DisposeAsync();
            }
        }
    }
}