using System.Collections;
using System.Collections.Generic;
using BehaviorDesigner.Runtime;
using DragonLi.Core;
using Mirror;
using Pathfinding;
using Pathfinding.RVO;
using UnityEngine;


public enum PlayerAIState
{
    Borning = 0,
    Charge = 1,
    Search = 2,
    Run = 3,
    Atk = 4,
    Die = 99,
}

public enum PlayerAIType
{
    PlayerAI1=0,
    PlayerAI2=1,
}

public class PlayerAI : Agent
{
    private BehaviorTree _behaviorTree;
    public BehaviorTree behaviorTree
    {
        get
        {
            if (_behaviorTree == null) _behaviorTree = GetComponent<BehaviorTree>();
            return _behaviorTree;
        }
    }
    
    private Collider _collider;
    public Collider selfCollider
    {
        get
        {
            if (_collider == null) _collider = GetComponent<Collider>();
            return _collider;
        }
    }
    
    public PlayerAIState state;
    
    [Header("编号")]
    [SyncVar]
    public int id = 0;

    [SyncVar] public PlayerAIType type;

    [Header("等级")]
    [SyncVar]
    public int lvl = 0;

    [Header("速度")]
    [SyncVar]
    public float speed = 0;

    [Header("攻击力")]
    [SyncVar]
    public float atk = 0;
    
    [Header("特殊攻击1攻击力")]
    [SyncVar]
    public float SpecialAtk1 = 0;
    
    [Header("特殊攻击2攻击力")]
    [SyncVar]
    public float SpecialAtk2 = 0;

    [Header("目标引用 (通常由 BT 设置)")]
    public GameObject target = null;

    public GunAiComponent gun;
    
    
    // 行为状态（本地/服务器）
    private bool updateAnimatorSpeedValue = false;
    private bool updateAnimatorSpeedFValue = false;
    private bool updateAnimatorSpeedRValue = false;
    
    // AI / 行为标志（server 上驱动）
    private bool introPlayed = false;
    private bool isAttacking = false;
    private bool isDead = false;
    void Awake()
    {
        InitAnimator();
    }

    void InitAnimator()
    {
        // 检测 Animator 参数，以便按需设置 speed / speedf / speedr
        if (AnimatorComponent == null) return;
        AnimatorControllerParameter[] parameters = AnimatorComponent.parameters;
        foreach (AnimatorControllerParameter val in parameters)
        {
            if (val.type == AnimatorControllerParameterType.Float)
            {
                switch (val.name)
                {
                    case "speed":
                        updateAnimatorSpeedValue = true;
                        break;
                    case "speedr":
                        updateAnimatorSpeedRValue = true;
                        break;
                    case "speedf":
                        updateAnimatorSpeedFValue = true;
                        break;
                }
            }
        }
    }

    [Server]
    public virtual void OnSpawn(int id, PlayerAIType type, int lvl,GameObject target)
    {
        base.OnSpawn();
        this.id = id;
        this.type = type;
        state = PlayerAIState.Borning;
        this.lvl = lvl;
        AiInfo enemyInfo = GameManager.Ins.AiInfos[id];
        speed = 1;
        atk = 1;
        health = 10;
        originHealth = 10;
        aiPath.enabled = true;
        aiPath.maxSpeed = speed;
        
        // 初始设置（server）
        if (isServer)
        {
            state = PlayerAIState.Borning;
            if (aiPath != null) aiPath.enabled = true;
            if (rvoController != null) rvoController.enabled = true;
            if (selfCollider != null) selfCollider.enabled = true;
            if (behaviorTree != null) {
                behaviorTree.enabled = true; 
                behaviorTree.SetVariable("target",(SharedGameObject)target);
            }
            // 初始血量已在 Agent.OnSpawn 中设置为 originHealth / health
        }
    }

    private void Update()
    {
        OnUpdate();
    }

    public override void OnUpdate()
    {
        // 只有 Server/Host 驱动移动（rvo / ai），其它客户端只做视觉播放（由 Rpc 通知）
        if (isServer && !isDead)
        {
            // 该方法在 Agent.Update 中由 Server 调用（以前你的实现）
            // 这里我们保持相同更新：更新动画参数 & 旋转等（只在 Server 上操作 AI/移动）
            if (aiPath != null && aiPath.enabled)
            {
                UpdateAnimatorValues(aiPath.velocity);
            }
            else if (RigidbodyComponent)
            {
                UpdateAnimatorValues(RigidbodyComponent.velocity);
            }
            UpdateRotation();
        }
    }

    protected void UpdateAnimatorValues(Vector3 vel)
    {
        if (AnimatorComponent != null)
        {
            if (updateAnimatorSpeedValue)
            {
                AnimatorComponent.SetFloat("speed", vel.magnitude);
            }
            Vector3 val;
            if (updateAnimatorSpeedFValue)
            {
                val = Vector3.Project(vel, transform.forward);
                float num = vel.magnitude > 0 ? val.magnitude / (vel.magnitude * (Vector3.Angle(vel, transform.forward) > 90f ? -1f : 1f)) : 0f;
                AnimatorComponent.SetFloat("speedf", num);
            }
            if (updateAnimatorSpeedRValue)
            {
                val = Vector3.Project(vel, transform.right);
                float num2 = vel.magnitude > 0 ? val.magnitude / (vel.magnitude * (Vector3.Angle(vel, transform.right) > 90f ? -1f : 1f)) : 0f;
                AnimatorComponent.SetFloat("speedr", num2);
            }
        }

        // 如果使用 Animancer 且你希望通过脚本控制 walkClip 的播放，则在 UpdateLocalVisuals 中处理（下文）
    }

    public virtual void UpdateRotation()
    {
        if (target != null)
        {
            transform.rotation = Quaternion.Lerp(transform.rotation, Quaternion.LookRotation(target.transform.position.ReflectVectorXOZ() - transform.position), Time.deltaTime * 10f);
        }
    }

    private void LateUpdate()
    {
        Vector3 pos = transform.position;
        pos.y = 0f;  // 或者设置为地面高度
        transform.position = pos;
    }
    
    public virtual void DoAttack()
    {
        if (!isServer) return; // 攻击判定/伤害应由 Server 执行（Host 权威）
        AnimatorComponent.SetInteger("state",1);
        //调用枪械开枪脚本
        gun.AiShoot();
    }
    
    
    public virtual void StopAttack()
    {
        if (!isServer) return; // 攻击判定/伤害应由 Server 执行（Host 权威）
        AnimatorComponent.SetInteger("state",0);
    }

    public virtual void EndEvent()
    {
        
    }

    public void ChangeKillEnemyTime()
    {
        behaviorTree.SetVariable("CountdownTime",(SharedFloat)10f);
    }

    public void KillEnemyEvent()
    {
        //gun.Shoot()
    }
}