using System;
using System.Collections.Generic;
using Fantasy;
using Fantasy.Entitas;
using NBF.Utils;
using UnityEngine;

namespace NBF
{
    public class Player : Entity
    {
        // ========== 本地状态 ==========
        /// <summary>
        /// 是否本地玩家
        /// </summary>
        public bool IsLocalPlayer;

        /// <summary>
        /// 是否切换物品中
        /// </summary>
        public bool IsChangeItemIng;

        public bool IsLureRod => false;

        public bool IsSelf => RoleModel.Instance.Id == Id;

        // ========== 物理状态（高频同步） ==========
        public Vector3 Position;
        public Quaternion Rotation;
        public Vector2 MoveInput;
        public float Speed;
        public float RotationSpeed;
        public bool IsGrounded;
        public bool Run;
        public float EyeAngle;

        /// <summary>
        /// 标志量
        /// </summary>
        public long TagValue;

        /// <summary>
        /// 上一个状态
        /// </summary>
        public PlayerState PreviousState;

        /// <summary>
        /// 当前状态
        /// </summary>
        public PlayerState State;

        /// <summary>
        /// 状态参数
        /// </summary>
        public StateEnterParams StateParams;


        /// <summary>
        /// 玩家的物品
        /// </summary>
        public Dictionary<long, PlayerItem> Items = new Dictionary<long, PlayerItem>();

        /// <summary>
        /// 当前手持物品id
        /// </summary>
        public long HandItemId;

        /// <summary>
        /// 当前手持物品
        /// </summary>
        public PlayerItem HandItem => Items.GetValueOrDefault(HandItemId);

        #region 初始化

        public void InitPlayer(MapUnitInfo unitInfo)
        {
            AddComponent<PlayerView>();
            AddComponent<PlayerStateView>();
            if (unitInfo.Id == RoleModel.Instance.Id)
            {
                //自己
                AddComponent<PlayerInput>();
            }
        }

        #endregion

        #region 物品

        public void ReleaseItem(PlayerItem item)
        {
            if (Items.ContainsValue(item))
            {
                Items.Remove(item.Id);
                item.Dispose();
            }
        }

        public void UnUseItem()
        {
            var prevItem = HandItem;
            HandItemId = 0;
            ItemChangeEvent(prevItem);
        }

        public void UseItem(ItemInfo item)
        {
            var prevItem = HandItem;
            var itemType = item.ConfigId.GetItemType();
            if (itemType == ItemType.Rod)
            {
                var playerItemRod = Create<PlayerItemRod>(Scene);
                playerItemRod.Init(this, item);
                Items[playerItemRod.Id] = playerItemRod;
                HandItemId = playerItemRod.Id;
            }

            ItemChangeEvent(prevItem);
        }

        private void ItemChangeEvent(PlayerItem prevItem)
        {
            Scene.EventComponent.Publish(new PlayerItemChangeEvent
            {
                Player = this,
                Item = HandItem,
                PrevItem = prevItem
            });
        }

        #endregion

        #region 状态切换

        /// <summary>
        /// 切换状态
        /// </summary>
        /// <param name="state"></param>
        /// <param name="stateParams"></param>
        public void ChangeState(PlayerState state, StateEnterParams stateParams = null)
        {
            if (state == State)
            {
                return;
            }

            PreviousState = State;
            State = state;
            StateParams = stateParams;
            Scene.EventComponent.Publish(new PlayerStateChangeEvent
            {
                Player = this
            });
        }

        #endregion
    }
}