using ActiveProtect.SimulationEnvironment;
using System;

namespace ActiveProtect.Models
{
    /// <summary>
    /// 表示仿真中的坦克
    /// </summary>
    public class Tank : SimulationElement
    {
        /// <summary>
        /// 当前速度(米/秒)
        /// </summary>
        public double Speed { get; set; }

        /// <summary>
        /// 最大速度(米/秒)
        /// </summary>
        public double MaxSpeed { get; private set; }

        /// <summary>
        /// 最大装甲值
        /// </summary>
        public double MaxArmor { get; private set; }

        /// <summary>
        /// 当前装甲值
        /// </summary>
        public double CurrentArmor { get; private set; }

        /// <summary>
        /// 红外辐射强度 (W/sr)
        /// </summary>
        public double InfraredRadiationIntensity { get; set; }

        /// <summary>
        /// 雷达截面积 (m^2)
        /// </summary>
        public double RadarCrossSection { get; set; }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="tankConfig">坦克配置</param>
        /// <param name="simulationManager">仿真管理器</param>
        public Tank(TankConfig tankConfig, ISimulationManager simulationManager)
            : base(tankConfig.Id, tankConfig.InitialPosition, tankConfig.InitialOrientation, tankConfig.InitialSpeed, simulationManager)
        {
            Speed = tankConfig.InitialSpeed;
            MaxSpeed = tankConfig.MaxSpeed;
            MaxArmor = tankConfig.MaxArmor;
            CurrentArmor = tankConfig.MaxArmor;
            InfraredRadiationIntensity = tankConfig.InfraredRadiationIntensity;
            RadarCrossSection = tankConfig.RadarCrossSection;
            IsActive = false;
        }

        /// <summary>
        /// 更新坦克状态
        /// </summary>
        /// <param name="deltaTime">时间步长(秒)</param>
        public override void Update(double deltaTime)
        {
            if (!IsActive) return;

            UpdatePosition(deltaTime);
        }

        /// <summary>
        /// 更新坦克位置
        /// </summary>
        /// <param name="deltaTime">时间步长(秒)</param>
        private void UpdatePosition(double deltaTime)
        {
            Vector3D direction = Orientation.ToVector();
            Vector3D movement = direction * Speed * deltaTime;
            Position += movement;
        }

        /// <summary>
        /// 坦克受到伤害
        /// </summary>
        /// <param name="damage">伤害值</param>
        /// <param name="isMissileDamage">是否为导弹造成的伤害</param>
        public void TakeDamage(double damage, bool isMissileDamage = false)
        {
            if (isMissileDamage)
            {
                damage = CurrentArmor * 0.5;
            }

            CurrentArmor = Math.Max(0, CurrentArmor - damage);
            if (CurrentArmor <= 0)
            {
                Deactivate();
            }
        }

        /// <summary>
        /// 获取坦克状态信息
        /// </summary>
        /// <returns>坦克状态字符串</returns>
        public override string GetStatus()
        {
            return $"坦克 {Id}:\n" +
                   $"  位置: {Position}\n" +
                   $"  速度: {Speed:F2}/{MaxSpeed:F2}\n" +
                   $"  装甲: {CurrentArmor:F2}/{MaxArmor:F2}\n" +
                   $"  状态: {(IsActive ? "活动" : "已销毁")}\n";
        }
    }
}