using System;
using ActiveProtect.SimulationEnvironment;

namespace ActiveProtect.Models
{
    /// <summary>
    /// 激光干扰器类，用于对抗激光制导武器
    /// </summary>
    public class LaserJammer : SimulationElement
    {
        /// <summary>
        /// 是否正在进行干扰
        /// </summary>
        public bool IsJamming { get; private set; }

        /// <summary>
        /// 当前干扰功率（瓦特）
        /// </summary>
        public double JammingPower { get; private set; }

        /// <summary>
        /// 当前冷却时间（秒）
        /// </summary>
        private double jammingCooldown = 0;

        /// <summary>
        /// 最大冷却时间（秒）
        /// </summary>
        private readonly double maxJammingCooldown;

        /// <summary>
        /// 最大干扰功率（瓦特）
        /// </summary>
        private readonly double maxJammingPower;

        /// <summary>
        /// 初始干扰功率（瓦特）
        /// </summary>
        private readonly double initialJammingPower;

        /// <summary>
        /// 功率增加速率（瓦特/秒）
        /// </summary>
        private readonly double powerIncreaseRate;

        /// <summary>
        /// 被监视实体的ID
        /// </summary>
        public string MonitoredEntityId { get; private set; }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="id">激光干扰器ID</param>
        /// <param name="position">初始位置</param>
        /// <param name="orientation">初始朝向</param>
        /// <param name="simulationManager">仿真管理器</param>
        /// <param name="monitoredEntityId">被监视实体的ID</param>
        /// <param name="config">激光干扰器配置</param>
        public LaserJammer(string id, Vector3D position, Orientation orientation, ISimulationManager simulationManager, string monitoredEntityId, LaserJammerConfig config)
            : base(id, position, orientation, 0, simulationManager)
        {
            MonitoredEntityId = monitoredEntityId;
            IsJamming = false;
            JammingPower = 0;
            maxJammingCooldown = config.MaxJammingCooldown;
            maxJammingPower = config.MaxJammingPower;
            initialJammingPower = config.InitialJammingPower;
            powerIncreaseRate = config.PowerIncreaseRate;
            SimulationManager.SubscribeToEvent<LaserWarnerAlarmEvent>(OnLaserWarnerAlarmEvent);
            SimulationManager.SubscribeToEvent<LaserWarnerAlarmStopEvent>(OnLaserWarnerAlarmStopEvent);
        }

        /// <summary>
        /// 更新激光干扰器状态
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        public override void Update(double deltaTime)
        {
            if (!IsActive) return;

            if (SimulationManager.GetEntityById(MonitoredEntityId) is Tank tank)
            {
                Position = tank.Position;
                Orientation = tank.Orientation;
            }

            if (IsJamming)
            {
                JammingPower = Math.Min(JammingPower + powerIncreaseRate * deltaTime, maxJammingPower);
                
                jammingCooldown += deltaTime;
                if (jammingCooldown >= maxJammingCooldown)
                {
                    StopJamming();
                }
                else
                {
                    // 发布干扰事件
                    PublishEvent(new LaserJammingEvent
                    {
                        TargetId = MonitoredEntityId,
                        JammingPower = JammingPower
                    });
                }
                
                Console.WriteLine($"激光干扰器 {Id} 正在工作，当前功率: {JammingPower:F2}");
            }
        }

        /// <summary>
        /// 处理激光告警器警报事件
        /// </summary>
        /// <param name="evt">激光告警器警报事件</param>
        private void OnLaserWarnerAlarmEvent(LaserWarnerAlarmEvent evt)
        {
            if (evt.TargetId == MonitoredEntityId)
            {
                StartJamming();
            }
        }

        /// <summary>
        /// 处理激光告警器警报停止事件
        /// </summary>
        /// <param name="evt">激光告警器警报停止事件</param>
        private void OnLaserWarnerAlarmStopEvent(LaserWarnerAlarmStopEvent evt)
        {
            if (evt.TargetId == MonitoredEntityId)
            {
                StopJamming();
            }
        }

        /// <summary>
        /// 开始干扰
        /// </summary>
        private void StartJamming()
        {
            if (!IsJamming)
            {
                IsJamming = true;
                JammingPower = initialJammingPower;
                jammingCooldown = 0;
                Console.WriteLine($"激光干扰器 {Id} 开始工作，初始功率: {JammingPower:F2}");
            }
        }

        /// <summary>
        /// 停止干扰
        /// </summary>
        private void StopJamming()
        {
            if (IsJamming)
            {
                IsJamming = false;
                JammingPower = 0;
                jammingCooldown = 0;
                Console.WriteLine($"激光干扰器 {Id} 停止工作");
            }
        }

        /// <summary>
        /// 获取激光干扰器状态信息
        /// </summary>
        /// <returns>状态信息字符串</returns>
        public override string GetStatus()
        {
            return $"激光干扰器 {Id}:\n" +
                   $"  监视实体: {MonitoredEntityId}\n" +
                   $"  干扰状态: {(IsJamming ? "干扰中" : "未干扰")}\n" +
                   $"  当前功率: {JammingPower:F2}/{maxJammingPower:F2}\n" +
                   $"  冷却时间: {jammingCooldown:F2}/{maxJammingCooldown:F2}";
        }

        /// <summary>   
        /// 激活激光干扰器
        /// </summary>
        public override void Activate()
        {
            base.Activate();
            SimulationManager.SubscribeToEvent<LaserWarnerAlarmEvent>(OnLaserWarnerAlarmEvent);
            SimulationManager.SubscribeToEvent<LaserWarnerAlarmStopEvent>(OnLaserWarnerAlarmStopEvent);
        }

        /// <summary>
        /// 停用激光干扰器
        /// </summary>
        public override void Deactivate()
        {
            base.Deactivate();
            SimulationManager.UnsubscribeFromEvent<LaserWarnerAlarmEvent>(OnLaserWarnerAlarmEvent);
            SimulationManager.UnsubscribeFromEvent<LaserWarnerAlarmStopEvent>(OnLaserWarnerAlarmStopEvent);
        }
    }
}