using System;
using ActiveProtect.Models;

namespace ActiveProtect.SimulationEnvironment
{
    /// <summary>
    /// 仿真元素的抽象基类，所有仿真中的实体都继承自此类
    /// </summary>
    public abstract class SimulationElement
    {
        /// <summary>
        /// 仿真元素的唯一标识符
        /// </summary>
        public virtual string Id { get; set; }

        /// <summary>
        /// 仿真元素的当前位置
        /// </summary>
        public virtual Vector3D Position { get; set; }

        /// <summary>
        /// 仿真元素的当前速度
        /// </summary>
        public virtual Vector3D Velocity { get; set; }

        /// <summary>
        /// 仿真元素的当前朝向
        /// </summary>
        public virtual Orientation Orientation { get; set; }

        /// <summary>
        /// 仿真元素是否处于活动状态
        /// </summary>
        public virtual bool IsActive { get; protected set; }

        /// <summary>
        /// 仿真管理器的引用
        /// </summary>
        protected ISimulationManager SimulationManager { get; set; }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="id">仿真元素的唯一标识符</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>
        protected SimulationElement(string id, Vector3D position, Orientation orientation, double speed, ISimulationManager simulationManager)
        {
            Id = id;
            Position = position;
            Orientation = orientation;
            Velocity = orientation.ToVector() * speed;
            this.SimulationManager = simulationManager;
            IsActive = false;
        }

        /// <summary>
        /// 更新仿真元素的状态
        /// </summary>
        /// <param name="deltaTime">时间步长</param>
        public abstract void Update(double deltaTime);

        /// <summary>
        /// 获取仿真元素的状态信息
        /// </summary>
        /// <returns>状态信息字符串</returns>
        public virtual string GetStatus()
        {
            return $"{GetType().Name} {Id} at {Position}, Orientation: {Orientation}, Active: {IsActive}";
        }

        /// <summary>
        /// 发布仿真事件
        /// </summary>
        /// <param name="evt">要发布的事件</param>
        protected void PublishEvent(SimulationEvent evt)
        {
            evt.SenderId = Id;
            evt.Timestamp = SimulationManager.CurrentTime;
            SimulationManager.PublishEvent(evt);
        }

        /// <summary>
        /// 激活仿真元素
        /// </summary>
        public virtual void Activate()
        {
            IsActive = true;
            PublishEvent(new EntityActivatedEvent { ActivatedEntityId = Id });
        }
    
        /// <summary>
        /// 停用仿真元素
        /// </summary>
        public virtual void Deactivate()
        {
            IsActive = false;
            PublishEvent(new EntityDeactivatedEvent { DeactivatedEntityId = Id });
        }
    }
}