using Unity.Entities;
using Unity.NetCode;

namespace ProjectM.Simulation
{
    /// <summary>
    /// One (item, count) row in a shared storage container's contents. The container's DynamicBuffer of
    /// these is the server-authoritative shared inventory; it is a GhostField buffer so the server's
    /// mutations replicate to every client. The container is an ownerless INTERPOLATED ghost, so no
    /// OwnerSendType / GhostOwner applies (those are for owner-predicted ghosts like the player).
    /// ItemId is an opaque id; a richer item model (and the M7 machine input/output generalisation)
    /// layers on top without changing replication.
    /// </summary>
    [InternalBufferCapacity(16)]
    public struct StorageEntry : IBufferElementData
    {
        /// <summary>Opaque item identifier (0 = empty/unused).</summary>
        [GhostField] public ushort ItemId;

        /// <summary>Quantity of this item in the container.</summary>
        [GhostField] public int Count;
    }
}