using JetBrains.Annotations;
using Robust.Shared.GameObjects;
using Robust.Shared.Map;

namespace Content.Shared.Interaction
{
    /// <summary>
    ///     Raised directed on the used object when clicking on another object before an interaction is handled.
    /// </summary>
    [PublicAPI]
    public class BeforeInteractEvent : HandledEntityEventArgs
    {
        /// <summary>
        ///     Entity that triggered the interaction.
        /// </summary>
        public IEntity User { get; }

        /// <summary>
        ///     Entity that triggered the interaction.
        /// </summary>
        public EntityUid UserUid => User.Uid;

        /// <summary>
        ///     Entity that the user used to interact.
        /// </summary>
        public IEntity Used { get; }

        /// <summary>
        ///     Entity that the user used to interact.
        /// </summary>
        public EntityUid UsedUid => Used.Uid;

        /// <summary>
        ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
        /// </summary>
        public IEntity? Target { get; }

        /// <summary>
        ///     Entity that was interacted on. This can be null if the attack did not click on an entity.
        /// </summary>
        public EntityUid? TargetUid => Target?.Uid;

        /// <summary>
        ///     Location that the user clicked outside of their interaction range.
        /// </summary>
        public EntityCoordinates ClickLocation { get; }

        /// <summary>
        /// Is the click location close enough to reach by the player? This does not check for obstructions, just that the target is within
        /// reach radius around the user.
        /// </summary>
        public bool CanReach { get; }

        public BeforeInteractEvent(
            IEntity user,
            IEntity used,
            IEntity? target,
            EntityCoordinates clickLocation,
            bool canReach)
        {
            User = user;
            Used = used;
            Target = target;
            ClickLocation = clickLocation;
            CanReach = canReach;
        }
    }
}