namespace Content.Shared.Pinpointer;

public abstract class SharedPinpointerSystem : EntitySystem
{
    /// <summary>
    ///     Manually set distance from pinpointer to target
    /// </summary>
    public void SetDistance(EntityUid uid, Distance distance, PinpointerComponent? pinpointer = null)
    {
        if (!Resolve(uid, ref pinpointer))
            return;

        if (distance == pinpointer.DistanceToTarget)
            return;

        pinpointer.DistanceToTarget = distance;
        Dirty(pinpointer);
    }

    /// <summary>
    ///     Try to manually set pinpointer arrow direction.
    ///     If difference between current angle and new angle is smaller than
    ///     pinpointer precision, new value will be ignored and it will return false.
    /// </summary>
    public bool TrySetArrowAngle(EntityUid uid, Angle arrowAngle, PinpointerComponent? pinpointer = null)
    {
        if (!Resolve(uid, ref pinpointer))
            return false;

        if (pinpointer.ArrowAngle.EqualsApprox(arrowAngle, pinpointer.Precision))
            return false;

        pinpointer.ArrowAngle = arrowAngle;
        Dirty(pinpointer);

        return true;
    }

    /// <summary>
    ///     Activate/deactivate pinpointer screen. If it has target it will start tracking it.
    /// </summary>
    public void SetActive(EntityUid uid, bool isActive, PinpointerComponent? pinpointer = null)
    {
        if (!Resolve(uid, ref pinpointer))
            return;
        if (isActive == pinpointer.IsActive)
            return;

        pinpointer.IsActive = isActive;
        Dirty(pinpointer);
    }
}