using System.Net;
using System.Net.Sockets;
using System.Text;

namespace Nonemm.Network.Tests;

public class RadioMirrorTests
{
    [Fact]
    public async Task A_radio_message_sent_to_the_port_is_raised_and_other_data_is_not()
    {
        int port = FreePort();
        using RadioMirror mirror = new(port);
        TaskCompletionSource<RadioBroadcast> received = new();
        mirror.Received += (_, message) => received.TrySetResult(message);
        using UdpClient sender = new();
        IPEndPoint target = new(IPAddress.Loopback, port);

        byte[] other = Encoding.UTF8.GetBytes("<spot><dxcall>DL1ABC</dxcall></spot>");
        await sender.SendAsync(other, target);
        byte[] radio = Encoding.UTF8.GetBytes(BroadcastMessages.Radio(
            new RadioReport(1, 7_012_300, 7_012_300, "CW", "OK1ABC", "OK1ABC", false, 1, false, 1, false, "", true),
            "RUN-PC"));
        await sender.SendAsync(radio, target);

        RadioBroadcast message = await received.Task.WaitAsync(TimeSpan.FromSeconds(5));
        Assert.Equal("RUN-PC", message.StationName);
        Assert.Equal(7_012_300, message.Radio.Frequency);
    }

    private static int FreePort()
    {
        using UdpClient probe = new(new IPEndPoint(IPAddress.Loopback, 0));
        return ((IPEndPoint)probe.Client.LocalEndPoint!).Port;
    }
}