using System;
using System.Threading.Tasks;
using ThreatSource.Simulation;
using ThreatSource.Guidance;
using ThreatSource.Sensor;

namespace ThreatSource.Examples
{
    /// <summary>
    /// 红外成像制导导弹仿真示例
    /// 本示例展示了如何：
    /// 1. 创建和配置一个红外成像制导导弹
    /// 2. 设置仿真环境和参数
    /// 3. 运行仿真并获取结果
    /// </summary>
    public class IRMissileSimulationExample
    {
        private TestSimulationAdapter _adapter;
        private SimulationEntity _missile;
        private SimulationEntity _target;
        private InfraredImagingGuidanceSystem _guidanceSystem;

        public async Task RunSimulationExample()
        {
            try
            {
                // 步骤1：创建导弹实体
                _missile = new SimulationEntity
                {
                    Id = "missile_001",
                    Position = new Vector3(0, 0, 0),
                    Velocity = new Vector3(0, 0, 0),
                    Mass = 100.0f  // kg
                };

                // 步骤2：配置红外成像制导系统
                _guidanceSystem = new InfraredImagingGuidanceSystem
                {
                    FieldOfView = 60.0f,       // 视场角（度）
                    TrackingRange = 20000.0f,  // 最大跟踪距离（米）
                    UpdateRate = 50            // 制导更新频率（Hz）
                };

                _missile.GuidanceSystem = _guidanceSystem;

                // 步骤3：设置目标
                _target = new SimulationEntity
                {
                    Id = "target_001",
                    Position = new Vector3(10000.0f, 1000.0f, 1000.0f),  // 目标在10km外
                    Velocity = new Vector3(-100.0f, 0.0f, 0.0f),         // 目标以100m/s速度移动
                    Signature = new InfraredSignature
                    {
                        Temperature = 400.0f,        // 目标温度（开尔文）
                        EmissivityFactor = 0.8f
                    }
                };

                // 步骤4：配置仿真参数
                var config = new SimulationConfig
                {
                    TimeStep = 0.02f,           // 仿真步长（秒）
                    MaxSimulationTime = 60.0f,  // 最大仿真时间（秒）
                    EnvironmentConditions = new EnvironmentConditions
                    {
                        Temperature = 288.15f,    // 环境温度（开尔文）
                        Pressure = 101325.0f,     // 大气压力（帕）
                        Humidity = 0.5f           // 相对湿度
                    }
                };

                // 步骤5：创建仿真适配器并注册事件
                _adapter = new TestSimulationAdapter();
                _adapter.EntityUpdated += OnEntityUpdated;
                _adapter.GuidanceUpdate += OnGuidanceUpdate;

                // 步骤6：初始化仿真
                await _adapter.Initialize(config);
                await _adapter.AddEntity(_missile);
                await _adapter.AddEntity(_target);

                // 步骤7：启动仿真
                await _adapter.StartSimulation();

                // 步骤8：等待仿真结束
                while (_adapter.IsRunning)
                {
                    await Task.Delay(100);
                }

                // 步骤9：获取仿真结果
                var results = await _adapter.GetSimulationResults();
                Trace.TraceInformation($"仿真结束，命中精度: {results.MissDistance:F2}米");
            }
            catch (Exception ex)
            {
                Trace.TraceError($"仿真过程出错: {ex.Message}");
            }
        }

        private void OnEntityUpdated(SimulationEntity entity)
        {
            Trace.TraceInformation($"实体 {entity.Id} 位置更新: ({entity.Position.X:F2}, {entity.Position.Y:F2}, {entity.Position.Z:F2})");
        }

        private void OnGuidanceUpdate(GuidanceInfo info)
        {
            Trace.TraceInformation($"制导更新: 距离目标 {info.DistanceToTarget:F2}米");
        }
    }
}