using Integrative.Lara;
using System;
using System.Threading.Tasks;

namespace SampleApp
{
    public static class Program
    {
        public static async Task Main()
        {
            // create and start application
            const int port = 8182;
            using var app = new Application();
            app.PublishPage("/", () => new MyCounterComponent { Value = 5 });
            await app.Start(new StartServerOptions { Port = port });

            // print address on console
            var address = $"http://localhost:{port}";
            Console.WriteLine($"Listening on {address}/");

            // helper function to launch browser (comment out as needed)
            LaraUI.LaunchBrowser(address);

            // wait for ASP.NET Core shutdown
            await app.WaitForShutdown();
        }
    }

    internal class MyCounterComponent : WebComponent
    {
        private int _value; // triggers PropertyChanged event
        public int Value { get => _value; set => SetProperty(ref _value, value); }

        public MyCounterComponent()
        {
            ShadowRoot.Children = new Node[]
            {
                new HtmlDivElement() // on PropertyChanged, assigns InnerText
                    .Bind(this, x => x.InnerText = Value.ToString()),
                new HtmlButtonElement
                    { InnerText = "Increase" }
                    .Event("click", () => Value++)
            };
        }
    }
}

private readonly Application _laraApp = new Application();

public void Configure(IApplicationBuilder app)  
{  
    app.UseLara(_laraApp, new LaraOptions
    {
        // configuration options
    });
}