//======================================================================================================
// Copyright 2025, Rokoko Glove OptiTrack Integration
//======================================================================================================
/**
 * RokokoData.h defines the data structures for Rokoko Studio LiveFrame_v4 format.
 * These structures match the JSON format used by Rokoko Unity scripts.
 */

#pragma once
#include <vector>
#include <memory>
#include <optional>
#include <string>

namespace RokokoData
{
    // Vector3 structure for position data
    struct Vector3Frame
    {
        float x = 0.0f;
        float y = 0.0f;
        float z = 0.0f;
    };
    
    // Vector4 structure for quaternion rotation data
    struct Vector4Frame
    {
        float x = 0.0f;
        float y = 0.0f;
        float z = 0.0f;
        float w = 1.0f;
    };
    
    // Actor joint frame containing position and rotation
    struct ActorJointFrame
    {
        Vector3Frame position;
        Vector4Frame rotation;
    };
    
    // Body structure containing full skeleton (Unity BodyFrame와 동일)
    // ✅ OPTIMIZATION: Using std::optional instead of shared_ptr for stack allocation (zero heap allocations)
    struct Body
    {
        // 전신 스켈레톤 데이터 (Unity BodyFrame과 동일)
        std::optional<ActorJointFrame> hip;
        std::optional<ActorJointFrame> spine;
        std::optional<ActorJointFrame> chest;
        std::optional<ActorJointFrame> neck;
        std::optional<ActorJointFrame> head;

        std::optional<ActorJointFrame> leftShoulder;
        std::optional<ActorJointFrame> leftUpperArm;
        std::optional<ActorJointFrame> leftLowerArm;
        std::optional<ActorJointFrame> leftHand;

        std::optional<ActorJointFrame> rightShoulder;
        std::optional<ActorJointFrame> rightUpperArm;
        std::optional<ActorJointFrame> rightLowerArm;
        std::optional<ActorJointFrame> rightHand;

        // 다리 데이터 (필요시)
        std::optional<ActorJointFrame> leftUpLeg;
        std::optional<ActorJointFrame> leftLeg;
        std::optional<ActorJointFrame> leftFoot;
        std::optional<ActorJointFrame> leftToe;
        std::optional<ActorJointFrame> leftToeEnd;

        std::optional<ActorJointFrame> rightUpLeg;
        std::optional<ActorJointFrame> rightLeg;
        std::optional<ActorJointFrame> rightFoot;
        std::optional<ActorJointFrame> rightToe;
        std::optional<ActorJointFrame> rightToeEnd;

        // Left hand finger joints
        std::optional<ActorJointFrame> leftThumbProximal;
        std::optional<ActorJointFrame> leftThumbMedial;
        std::optional<ActorJointFrame> leftThumbDistal;
        std::optional<ActorJointFrame> leftThumbTip;

        std::optional<ActorJointFrame> leftIndexProximal;
        std::optional<ActorJointFrame> leftIndexMedial;
        std::optional<ActorJointFrame> leftIndexDistal;
        std::optional<ActorJointFrame> leftIndexTip;

        std::optional<ActorJointFrame> leftMiddleProximal;
        std::optional<ActorJointFrame> leftMiddleMedial;
        std::optional<ActorJointFrame> leftMiddleDistal;
        std::optional<ActorJointFrame> leftMiddleTip;

        std::optional<ActorJointFrame> leftRingProximal;
        std::optional<ActorJointFrame> leftRingMedial;
        std::optional<ActorJointFrame> leftRingDistal;
        std::optional<ActorJointFrame> leftRingTip;

        std::optional<ActorJointFrame> leftLittleProximal;
        std::optional<ActorJointFrame> leftLittleMedial;
        std::optional<ActorJointFrame> leftLittleDistal;
        std::optional<ActorJointFrame> leftLittleTip;

        // Right hand finger joints (similar structure)
        std::optional<ActorJointFrame> rightThumbProximal;
        std::optional<ActorJointFrame> rightThumbMedial;
        std::optional<ActorJointFrame> rightThumbDistal;
        std::optional<ActorJointFrame> rightThumbTip;

        std::optional<ActorJointFrame> rightIndexProximal;
        std::optional<ActorJointFrame> rightIndexMedial;
        std::optional<ActorJointFrame> rightIndexDistal;
        std::optional<ActorJointFrame> rightIndexTip;

        std::optional<ActorJointFrame> rightMiddleProximal;
        std::optional<ActorJointFrame> rightMiddleMedial;
        std::optional<ActorJointFrame> rightMiddleDistal;
        std::optional<ActorJointFrame> rightMiddleTip;

        std::optional<ActorJointFrame> rightRingProximal;
        std::optional<ActorJointFrame> rightRingMedial;
        std::optional<ActorJointFrame> rightRingDistal;
        std::optional<ActorJointFrame> rightRingTip;

        std::optional<ActorJointFrame> rightLittleProximal;
        std::optional<ActorJointFrame> rightLittleMedial;
        std::optional<ActorJointFrame> rightLittleDistal;
        std::optional<ActorJointFrame> rightLittleTip;
    };
    
    // Actor data structure
    struct ActorData
    {
        std::string id;
        std::string name;
        Body body;
    };
    
    // Scene structure containing actors
    struct SceneFrame
    {
        std::vector<ActorData> actors;
    };
    
    // Main LiveFrame_v4 structure
    struct LiveFrame_v4
    {
        double timestamp = 0.0;
        SceneFrame scene;
    };
}