using Cysharp.Threading.Tasks;

using PMaker.Messaging;

using System.Threading;

using UnityEngine;

public class MessageBridge<TRoute, TMessage>
{
    public struct Message
    {
        public Message(TRoute route, DomainStructEvents<TRoute, TMessage>.MessageDelegate handle)
        {
            this._route = route;
            this._handle = handle;
        }
        private TRoute _route;
        private DomainStructEvents<TRoute, TMessage>.MessageDelegate _handle;

        public async void AddTo(CancellationToken token)
        {
            await token.WaitUntilCanceled();
            DomainStructEvents<TRoute, TMessage>.Unsubscribe(_route, _handle);
        }

        public async void AddTo(Component component)
        {
            var token = component.GetCancellationTokenOnDestroy();
            await token.WaitUntilCanceled();
            DomainStructEvents<TRoute, TMessage>.Unsubscribe(_route, _handle);
        }
    }

    public static Message Subscribe(TRoute route, DomainStructEvents<TRoute, TMessage>.MessageDelegate handle, CancellationToken token = default)
    {
        DomainStructEvents<TRoute, TMessage>.Subscribe(route, handle);
        return new Message(route, handle);
    }
}

public class ClssOnlyMessageBridge<TRoute, TMessage> where TMessage : class where TRoute : class
{
    public struct ClessOnlyMessage
    {
        public ClessOnlyMessage(TRoute route, DomainEvents<TRoute, TMessage>.MessageDelegate handle)
        {
            this._route = route;
            this._handle = handle;
        }
        private TRoute _route;
        private DomainEvents<TRoute, TMessage>.MessageDelegate _handle;

        public async void AddTo(CancellationToken token)
        {
            await token.WaitUntilCanceled();
            DomainEvents<TRoute, TMessage>.Unsubscribe(_route, _handle);
        }

        public async void AddTo(Component component)
        {
            var token = component.GetCancellationTokenOnDestroy();
            await token.WaitUntilCanceled();
            DomainEvents<TRoute, TMessage>.Unsubscribe(_route, _handle);
        }
    }

    public static ClessOnlyMessage Subscribe(TRoute route, DomainEvents<TRoute, TMessage>.MessageDelegate handle, CancellationToken token = default)
    {
        DomainEvents<TRoute, TMessage>.Subscribe(route, handle);
        return new ClessOnlyMessage(route, handle);
    }

}