using ProjectM.Simulation;
using Unity.Entities;
using Unity.NetCode;
using UnityEngine;

namespace ProjectM.Client
{
    /// <summary>
    /// Client-side portal-interact sender: a static flag (the portal prompt / E-key) drained into a single
    /// <see cref="PortalInteractRequest"/> RPC. Coalesced (one per drain — repeat E while the server is still in
    /// RoomExplore is harmless, the server latches once). Statics reset on play-enter.
    /// </summary>
    [WorldSystemFilter(WorldSystemFilterFlags.ClientSimulation)]
    public partial class PortalInteractSendSystem : SystemBase
    {
        static bool s_pending;

        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
        static void ResetStatics() => s_pending = false;

        /// <summary>Request leaving via the portal (the HUD prompt / E-key near the portal drives this).</summary>
        public static void Interact() => s_pending = true;

        protected override void OnCreate() => RequireForUpdate<NetworkId>();

        protected override void OnUpdate()
        {
            if (!s_pending) return;
            s_pending = false;
            EntityManager.CreateEntity(typeof(PortalInteractRequest), typeof(SendRpcCommandRequest));
        }
    }
}