using System;
using System.Reactive;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Flawless.Client.Service;
using ReactiveUI;
using ReactiveUI.SourceGenerators;
using Refit;

namespace Flawless.Client.ViewModels;

public partial class ServerSetupPageViewModel : ViewModelBase, IRoutableViewModel
{

    public string? UrlPathSegment { get; } = Guid.NewGuid().ToString();
    
    public IScreen HostScreen { get; }
    
    [Reactive] private string _host = "http://localhost:5256/";

    [Reactive(SetModifier = AccessModifier.Protected)] private string? _issue;

    public IObservable<bool> CanSetHost { get; }
    
    public ServerSetupPageViewModel(IScreen hostScreen)
    {
        HostScreen = hostScreen;
        
        // Must clear this gateway
        if (Api.Current.IsGatewayReady) Api.Current.ClearGateway();

        CanSetHost = this.WhenAnyValue(x => x.Host, s => !string.IsNullOrWhiteSpace(s));
    }


    [ReactiveCommand]
    private async Task SetHostAsync()
    {
        try
        {
            Issue = string.Empty;
            await Api.Current.SetGatewayAsync(Host);
            HostScreen.Router.Navigate.Execute(new LoginPageViewModel(HostScreen));
        }
        catch (ApiException ex)
        {
            await Console.Error.WriteLineAsync("Can not connect to server: " + ex.ToString());
            Issue = ex.Content;
        }
        catch (Exception ex)
        {
            await Console.Error.WriteLineAsync("Can not connect to server: " + ex.ToString());
            Issue = ex.Message;
        }
    }
    
}