#if NEVER // 使用编译指令确保此文件永远不会被编译

// Unity引擎集成示例代码 - 方法一：直接引用.NET库
// 
// 【适用场景】
// - 快速原型开发和单一项目使用
// - 直接将 ThreatSource.dll 复制到 Assets/Plugins/ 目录
// - 不需要复杂的Package管理
//
// 【前置条件】
// 1. 将 ThreatSource.dll 放入 Assets/Plugins/
// 2. 将 data/ 目录复制到 Assets/StreamingAssets/ThreatSource/
// 3. Unity项目设置 Api Compatibility Level 为 .NET Standard 2.1+
//
// 展示如何将Unity引擎与ThreatSource仿真系统集成
// 需要实现的核心功能: 实体同步、事件处理、状态管理

using ThreatSource.Simulation;
using ThreatSource.Data;
using ThreatSource.Missile;
using UnityEngine;  // 仅用于示例，实际项目中需要引用真实的Unity命名空间

/// <summary>
/// Unity引擎适配器类，演示如何将Unity引擎集成到仿真系统中
/// </summary>
/// <remarks>
/// 该类提供了以下功能：
/// - Unity引擎与仿真系统的双向通信
/// - GameObject与仿真实体的映射和同步
/// - MonoBehaviour生命周期管理
/// - 事件的发布和订阅
/// 本示例代码仅作为参考，展示了基本的集成方法
/// </remarks>
public class UnityThreatSourceAdapter : MonoBehaviour
{
    /// <summary>
    /// 仿真管理器实例
    /// </summary>
    private ISimulationManager _simulationManager;

    /// <summary>
    /// 数据管理器实例
    /// </summary>
    private ThreatSourceDataManager _dataManager;

    /// <summary>
    /// 实体映射字典：仿真实体ID -> Unity GameObject
    /// </summary>
    private Dictionary<string, GameObject> _entityGameObjects = new Dictionary<string, GameObject>();

    /// <summary>
    /// 导弹预制体路径
    /// </summary>
    [SerializeField]
    private string missilePrefabPath = "Prefabs/Missile";

    /// <summary>
    /// 目标预制体路径
    /// </summary>
    [SerializeField]
    private string targetPrefabPath = "Prefabs/Target";

    /// <summary>
    /// 仿真时间步长
    /// </summary>
    [SerializeField]
    private float simulationTimeStep = 0.02f;

    /// <summary>
    /// Unity生命周期方法：初始化
    /// </summary>
    private void Awake()
    {
        InitializeSimulation();
    }

    /// <summary>
    /// 初始化仿真系统
    /// </summary>
    private void InitializeSimulation()
    {
        try
        {
            // 创建仿真管理器和数据管理器
            _simulationManager = new SimulationManager();
            _dataManager = new ThreatSourceDataManager();

            // 启动仿真
            _simulationManager.StartSimulation(simulationTimeStep);

            // 订阅仿真事件
            _simulationManager.Subscribe<MissileFireEvent>(OnMissileFireEvent);
            _simulationManager.Subscribe<MissileExplodeEvent>(OnMissileExplodeEvent);
            _simulationManager.Subscribe<FlightPhaseChangeEvent>(OnFlightPhaseChangeEvent);

            Debug.Log("ThreatSource仿真系统初始化成功");
        }
        catch (System.Exception ex)
        {
            Debug.LogError($"仿真系统初始化失败: {ex.Message}");
        }
    }

    /// <summary>
    /// Unity生命周期方法：更新
    /// </summary>
    private void Update()
    {
        if (_simulationManager != null)
        {
            // 更新仿真
            _simulationManager.UpdateSimulation();

            // 同步实体状态
            SyncEntityStates();
        }
    }

    /// <summary>
    /// 同步仿真实体状态到Unity GameObject
    /// </summary>
    private void SyncEntityStates()
    {
        foreach (var kvp in _entityGameObjects)
        {
            string entityId = kvp.Key;
            GameObject gameObject = kvp.Value;

            // 获取仿真实体
            var entity = _simulationManager.GetEntity(entityId);
            if (entity != null && entity.KState != null)
            {
                // 同步位置
                gameObject.transform.position = new Vector3(
                    entity.KState.Position.X,
                    entity.KState.Position.Z, // Unity使用Y作为高度
                    entity.KState.Position.Y
                );

                // 同步旋转
                var orientation = entity.KState.Orientation;
                gameObject.transform.rotation = Quaternion.Euler(
                    orientation.Pitch * Mathf.Rad2Deg,
                    orientation.Yaw * Mathf.Rad2Deg,
                    orientation.Roll * Mathf.Rad2Deg
                );
            }
        }
    }

    /// <summary>
    /// 创建导弹实体
    /// </summary>
    /// <param name="missileType">导弹类型</param>
    /// <param name="position">初始位置</param>
    /// <param name="targetId">目标ID</param>
    public void CreateMissile(string missileType, Vector3 position, string targetId)
    {
        try
        {
            // 从配置创建导弹
            var missileData = _dataManager.GetMissile(missileType);
            string missileId = $"missile_{System.Guid.NewGuid():N}";
            
            var missile = new InfraredImagingTerminalGuidanceMissile(missileId, missileData)
            {
                KState = new KinematicState
                {
                    Position = new ThreatSource.Simulation.Vector3(position.x, position.z, position.y),
                    Velocity = new ThreatSource.Simulation.Vector3(0, 0, 0),
                    Orientation = new Orientation(0, 0, 0)
                }
            };

            // 注册到仿真系统
            _simulationManager.RegisterEntity(missile);

            // 在Unity中创建GameObject
            var missilePrefab = Resources.Load<GameObject>(missilePrefabPath);
            if (missilePrefab != null)
            {
                var missileGameObject = Instantiate(missilePrefab, position, Quaternion.identity);
                missileGameObject.name = missileId;

                // 添加导弹控制组件
                var missileController = missileGameObject.GetComponent<MissileController>();
                if (missileController == null)
                {
                    missileController = missileGameObject.AddComponent<MissileController>();
                }
                missileController.Initialize(missileId, targetId);

                // 建立映射关系
                _entityGameObjects[missileId] = missileGameObject;

                Debug.Log($"创建导弹: {missileId}, 目标: {targetId}");
            }
            else
            {
                Debug.LogError($"无法加载导弹预制体: {missilePrefabPath}");
            }
        }
        catch (System.Exception ex)
        {
            Debug.LogError($"创建导弹失败: {ex.Message}");
        }
    }

    /// <summary>
    /// 创建目标实体
    /// </summary>
    /// <param name="targetId">目标ID</param>
    /// <param name="position">位置</param>
    /// <param name="velocity">速度</param>
    public void CreateTarget(string targetId, Vector3 position, Vector3 velocity)
    {
        try
        {
            // 创建目标实体
            var target = new BaseEquipment(targetId)
            {
                KState = new KinematicState
                {
                    Position = new ThreatSource.Simulation.Vector3(position.x, position.z, position.y),
                    Velocity = new ThreatSource.Simulation.Vector3(velocity.x, velocity.z, velocity.y),
                    Orientation = new Orientation(0, 0, 0)
                }
            };

            // 注册到仿真系统
            _simulationManager.RegisterEntity(target);

            // 在Unity中创建GameObject
            var targetPrefab = Resources.Load<GameObject>(targetPrefabPath);
            if (targetPrefab != null)
            {
                var targetGameObject = Instantiate(targetPrefab, position, Quaternion.identity);
                targetGameObject.name = targetId;

                // 建立映射关系
                _entityGameObjects[targetId] = targetGameObject;

                Debug.Log($"创建目标: {targetId}");
            }
            else
            {
                Debug.LogError($"无法加载目标预制体: {targetPrefabPath}");
            }
        }
        catch (System.Exception ex)
        {
            Debug.LogError($"创建目标失败: {ex.Message}");
        }
    }

    /// <summary>
    /// 处理导弹发射事件
    /// </summary>
    private void OnMissileFireEvent(MissileFireEvent evt)
    {
        Debug.Log($"导弹发射事件: {evt.SenderId} -> {evt.TargetId}");
        
        // 可以在这里添加视觉效果，如发射烟雾、声音等
        var missileGameObject = GetGameObject(evt.SenderId);
        if (missileGameObject != null)
        {
            // 播放发射特效
            var particleSystem = missileGameObject.GetComponentInChildren<ParticleSystem>();
            if (particleSystem != null)
            {
                particleSystem.Play();
            }
        }
    }

    /// <summary>
    /// 处理导弹爆炸事件
    /// </summary>
    private void OnMissileExplodeEvent(MissileExplodeEvent evt)
    {
        Debug.Log($"导弹爆炸事件: {evt.SenderId} 在位置 {evt.Position}");

        var missileGameObject = GetGameObject(evt.SenderId);
        if (missileGameObject != null)
        {
            // 播放爆炸特效
            var explosionPrefab = Resources.Load<GameObject>("Prefabs/Explosion");
            if (explosionPrefab != null)
            {
                Instantiate(explosionPrefab, missileGameObject.transform.position, Quaternion.identity);
            }

            // 销毁导弹GameObject
            Destroy(missileGameObject);
            _entityGameObjects.Remove(evt.SenderId);
        }
    }

    /// <summary>
    /// 处理飞行阶段变化事件
    /// </summary>
    private void OnFlightPhaseChangeEvent(FlightPhaseChangeEvent evt)
    {
        Debug.Log($"导弹 {evt.SenderId} 进入 {evt.NewPhase} 阶段");

        // 可以根据飞行阶段改变导弹的视觉表现
        var missileGameObject = GetGameObject(evt.SenderId);
        if (missileGameObject != null)
        {
            var missileController = missileGameObject.GetComponent<MissileController>();
            if (missileController != null)
            {
                missileController.OnFlightPhaseChanged(evt.NewPhase);
            }
        }
    }

    /// <summary>
    /// 根据实体ID获取对应的GameObject
    /// </summary>
    private GameObject GetGameObject(string entityId)
    {
        _entityGameObjects.TryGetValue(entityId, out GameObject gameObject);
        return gameObject;
    }

    /// <summary>
    /// Unity生命周期方法：销毁
    /// </summary>
    private void OnDestroy()
    {
        CleanupSimulation();
    }

    /// <summary>
    /// 清理仿真系统
    /// </summary>
    private void CleanupSimulation()
    {
        if (_simulationManager != null)
        {
            _simulationManager.StopSimulation();
            _simulationManager = null;
        }

        // 清理GameObject映射
        foreach (var gameObject in _entityGameObjects.Values)
        {
            if (gameObject != null)
            {
                Destroy(gameObject);
            }
        }
        _entityGameObjects.Clear();

        Debug.Log("ThreatSource仿真系统已清理");
    }
}

/// <summary>
/// 导弹控制器组件
/// </summary>
public class MissileController : MonoBehaviour
{
    private string _missileId;
    private string _targetId;
    private TrailRenderer _trailRenderer;

    public void Initialize(string missileId, string targetId)
    {
        _missileId = missileId;
        _targetId = targetId;

        // 获取拖尾渲染器
        _trailRenderer = GetComponent<TrailRenderer>();
        if (_trailRenderer == null)
        {
            _trailRenderer = gameObject.AddComponent<TrailRenderer>();
        }
    }

    public void OnFlightPhaseChanged(FlightPhase newPhase)
    {
        // 根据飞行阶段调整视觉效果
        switch (newPhase)
        {
            case FlightPhase.Boost:
                // 助推阶段：显示推进器火焰
                break;
            case FlightPhase.Midcourse:
                // 中段飞行：调整拖尾效果
                if (_trailRenderer != null)
                {
                    _trailRenderer.enabled = true;
                }
                break;
            case FlightPhase.Terminal:
                // 末段制导：可能改变颜色或效果
                if (_trailRenderer != null)
                {
                    _trailRenderer.material.color = Color.red;
                }
                break;
        }
    }
}

/// <summary>
/// 示例使用脚本
/// </summary>
public class ThreatSourceExample : MonoBehaviour
{
    private UnityThreatSourceAdapter _adapter;

    private void Start()
    {
        // 获取适配器组件
        _adapter = FindObjectOfType<UnityThreatSourceAdapter>();
        if (_adapter == null)
        {
            _adapter = gameObject.AddComponent<UnityThreatSourceAdapter>();
        }

        // 延迟创建示例场景
        Invoke(nameof(CreateExampleScene), 1.0f);
    }

    private void CreateExampleScene()
    {
        // 创建目标
        _adapter.CreateTarget("target_001", new Vector3(1000, 0, 100), new Vector3(-50, 0, 0));

        // 创建导弹
        _adapter.CreateMissile("IR_Missile_Example", Vector3.zero, "target_001");
    }
}

#endif // 结束编译指令块