public static class ConsulDistributedApplicationBuilderExtensions
{
    public static IResourceBuilder<ConsulResource> AddConsulContainer(
        this IDistributedApplicationBuilder builder, [ResourceName] string name)
    {
        ArgumentNullException.ThrowIfNull(builder);
        ArgumentNullException.ThrowIfNull(name);

        var consul = new ConsulResource(name);

        return builder.AddResource(consul)
            .WithImage("hashicorp/consul", "latest")
            .WithImageRegistry("docker.io")
            .WithHttpEndpoint(8500, isProxied: false)
            .WithHttpHealthCheck("http://localhost:8500/")
            .WithUrl("http://localhost:8500/v1/agent/services", "Services JSON")
            .WithUrl("http://localhost:8500/v1/agent/checks", "Checks JSON")
            .WithEndpoint("dns-tcp", ea =>
            {
                ea.Protocol = ProtocolType.Tcp;
                ea.Port = 53;
                ea.TargetPort = 8600;
                ea.IsProxied = false;
            })
            .WithEndpoint("dns-udp", ea =>
            {
                // TODO: Why does dashboard show tcp?
                ea.Protocol = ProtocolType.Udp;
                ea.Port = 53;
                ea.TargetPort = 8600;
                ea.IsProxied = false;
            });
    }
}

public sealed class ConsulResource(string name)
    : ContainerResource(name);

builder.Services.AddDnsSrvServiceEndpointProvider(
    options => options.QuerySuffix = "service.consul");

// PATCH-START: Change DNS query to work with Consul.
//var srvQuery = $"_{portName}._tcp.{query.ServiceName}.{_querySuffix}";  // example: _default._tcp.fortune-service.service.consul
var srvQuery = $"_{query.ServiceName}._tcp.{_querySuffix}";               // example: _fortune-service._tcp.service.consul
// PATCH-END: Change DNS query to work with Consul.

// PATCH-START: Use the Consul DNS server, instead of the local machine.
//public DnsResolver(TimeProvider timeProvider, ILogger<DnsResolver> logger) : this(timeProvider, logger, OperatingSystem.IsLinux() || OperatingSystem.IsMacOS() ? ResolvConf.GetOptions() : NetworkInfo.GetOptions())
public DnsResolver(TimeProvider timeProvider, ILogger<DnsResolver> logger) : this(timeProvider, logger, new ResolverOptions([new IPEndPoint(IPAddress.Parse("127.0.0.1"), 53)]))
// PATCH-END: Use the Consul DNS server, instead of the local machine.