namespace ChivaXR.VR
{
    using UnityEngine;
    #region 按键枚举
    public enum CVR_ButtonPressTypes
    {
        /// <summary>
        /// The button is currently being pressed.
        /// </summary>
        Press,
        /// <summary>
        /// The button has just been pressed down.
        /// </summary>
        PressDown,
        /// <summary>
        /// The button has just been released.
        /// </summary>
        PressUp,
        /// <summary>
        /// The button is currently being touched.
        /// </summary>
        Touch,
        /// <summary>
        /// The button has just been touched.
        /// </summary>
        TouchDown,
        /// <summary>
        /// The button is no longer being touched.
        /// </summary>
        TouchUp
    }

    public enum CVR_ButtonTypes
    {
        /// <summary>
        /// Button One on the controller.
        /// </summary>
        ButtonOne,
        /// <summary>
        /// Button Two on the controller.
        /// </summary>
        ButtonTwo,
        /// <summary>
        /// Grip on the controller.
        /// </summary>
        Grip,
        /// <summary>
        /// Grip Hairline on the controller.
        /// </summary>
        GripHairline,
        /// <summary>
        /// Start Menu on the controller.
        /// </summary>
        StartMenu,
        /// <summary>
        /// Trigger on the controller.
        /// </summary>
        Trigger,
        /// <summary>
        /// Trigger Hairline on the controller.
        /// </summary>
        TriggerHairline,
        /// <summary>
        /// Touchpad on the controller.
        /// </summary>
        Touchpad,
        /// <summary>
        /// Touchpad Two on the controller.
        /// </summary>
        TouchpadTwo,
        /// <summary>
        /// Middle Finger on the controller.
        /// </summary>
        MiddleFinger,
        /// <summary>
        /// Ring Finger on the controller.
        /// </summary>
        RingFinger,
        /// <summary>
        /// Pinky Finger on the controller.
        /// </summary>
        PinkyFinger
    }
    /// <summary>
    /// Controller hand reference.
    /// </summary>
    public enum CVR_ControllerHand
    {
        /// <summary>
        /// No hand is assigned.
        /// </summary>
        None,
        /// <summary>
        /// The left hand is assigned.
        /// </summary>
        Left,
        /// <summary>
        /// The right hand is assigned.
        /// </summary>
        Right
    }
    #endregion

    /// <summary>
    /// CVR交互接口(ChivaVR)
    /// </summary>
    public interface IVR_Interactable
    {
        /// <summary>
        /// 工具类型
        /// </summary>
        /// <returns></returns>
        CVR_ToolType GetToolType();
        /// <summary>
        /// 是否处于抓取状态
        /// </summary>
        /// <returns></returns>
        bool CVR_IsGrabbed();
        /// <summary>
        /// 是否处于使用状态
        /// </summary>
        /// <returns></returns>
        bool CVR_IsUsing();

        /// <summary>
        /// 断开使用状态
        /// </summary>
        /// <returns></returns>
        void ForceStopUsing();

        /// <summary>
        /// 获取当前手柄手部类型（左右）
        /// </summary>
        /// <returns></returns>
        CVR_ControllerHand CVR_GetCurrentHand();

        /// <summary>
        /// 检测手柄按钮状态
        /// </summary>
        /// <param name="btnType"></param>
        /// <param name="pressType"></param>
        /// <returns></returns>
        bool CVR_CheckButtonState(CVR_ButtonTypes btnType, CVR_ButtonPressTypes pressType);

        Vector2 CVR_GetControllerAxis(CVR_ButtonTypes btnType);

        /// <summary>
        /// 获取当前手部脚本Object
        /// </summary>
        /// <returns></returns>
        GameObject CVR_GetInteractableObject();
        /// <summary>
        /// 获取当前物体GameObject
        /// </summary>
        /// <returns></returns>
        GameObject CVR_GetCurrentObject();

        /// <summary>
        /// 获取VR摄像机
        /// </summary>
        /// <returns></returns>
        GameObject CVR_GetHeadsetCamera();
        /// <summary>
        /// 当前物体被拾取时
        /// </summary>
        event CVR_InteractableObjectEventHandler CVR_InteractableObjectGrabbed;
        /// <summary>
        /// 当前物体松手前
        /// </summary>
        event CVR_InteractableObjectEventHandler CVR_InteractableObjectPreUnGrabbed;
        /// <summary>
        /// 当前物体点击使用时
        /// </summary>
        event CVR_InteractableObjectEventHandler CVR_InteractableObjectUsed;
        /// <summary>
        /// 当前物体退出使用时
        /// </summary>
        event CVR_InteractableObjectEventHandler CVR_InteractableObjectUnused;
    }

    public struct CVR_InteractableObjectEventArgs
    {
        public GameObject interactingObject;
    }

    /// <summary>
    /// Event Payload
    /// </summary>
    /// <param name="sender">this object</param>
    /// <param name="e"><see cref="InteractableObjectEventArgs"/></param>
    public delegate void CVR_InteractableObjectEventHandler(object sender, CVR_InteractableObjectEventArgs e);
}