using System;
using System.Collections;
using System.Collections.Generic;
using Unity.Collections;
using UnityEngine;
using UnityEngine.Serialization;

public class TeamManager : MonoBehaviour
{
    public static TeamManager Instance {get; private set;}

    public teamSettingPanel teamSettingPanelInstance;
    /// <summary>
    /// 当前玩家存档下的所有编队配置,key为编队索引，value为该编队的角色列表，表内只有角色ID
    /// </summary>
    public Dictionary<int, TeamSetting> currentTeamSettings = new Dictionary<int, TeamSetting>();
    /// <summary>
    /// 玩家存档下已经解锁的角色信息列表
    /// </summary>
    public List<CharacterView> SelectableCharacterList = new List<CharacterView>();
    /// <summary>
    /// 根据此字段来在编队信息页显示已有编队
    /// </summary>
    public int currentSelectedTeam = 0;
    /// <summary>
    /// 记录被选中的编队中角色的索引，用于处理队列位置交换的逻辑。-1表示无角色被选中
    /// </summary>
     public int currentSelectedTeamCharacter = -1;
    /// <summary>
    /// 标记要被放入编队的角色
    /// </summary>
    public CharacterView currentSelectedCharacterCard = null;
    /// <summary>
    /// 在修改被选中的编队中角色的索引时触发
    /// </summary>
    public event Action OnSelectedCharacterChanged;
    /// <summary>
    /// 修改选定的预设队伍时触发
    /// </summary>
    public event Action OnSelectedTeamChanged;
    
    void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
        }
        else
        {
            Destroy(gameObject);
        }
    }

    void testTeamSetting()
    {
        SelectableCharacterList.Add(new CharacterView(1001001,"C"));
        SelectableCharacterList.Add(new CharacterView(1001002,"S"));
        
        //手动向currentTeamSettings和SelectableCharacterList添加测试数据
        currentTeamSettings.Add(0,new TeamSetting(new List<CharacterView>(),1001001));
        currentTeamSettings[0].teamIdList.Add(new CharacterView(1001001,"C"));
        currentTeamSettings[0].teamIdList.Add(new CharacterView(1001002,"S"));
        currentTeamSettings[0].teamIdList.Add(new CharacterView(1001001,"C"));
        currentTeamSettings[0].teamIdList.Add( new CharacterView(1001002,"C"));
        currentTeamSettings[0].teamIdList.Add(new CharacterView(0,null));
        
        currentTeamSettings.Add(1,new TeamSetting(new List<CharacterView>(),1001002));
        currentTeamSettings[1].teamIdList.Add(new CharacterView(1001001,"C"));
        currentTeamSettings[1].teamIdList.Add(new CharacterView(1001002,"B"));
        currentTeamSettings[1].teamIdList.Add(new CharacterView(1001001,"C"));
        currentTeamSettings[1].teamIdList.Add( new CharacterView(1001002,"A"));
        currentTeamSettings[1].teamIdList.Add(new CharacterView(1001002,"A"));
        //在当前版本中，就算是空队伍也要用如下填满，请等待数据结构的重构
        currentTeamSettings.Add(2,new TeamSetting(new List<CharacterView>(),-1));
        currentTeamSettings[2].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[2].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[2].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[2].teamIdList.Add( new CharacterView(0,null));
        currentTeamSettings[2].teamIdList.Add(new CharacterView(0,null));
        
        currentTeamSettings.Add(3,new TeamSetting(new List<CharacterView>(),-1));
        currentTeamSettings[3].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[3].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[3].teamIdList.Add(new CharacterView(0,null));
        currentTeamSettings[3].teamIdList.Add( new CharacterView(0,null));
        currentTeamSettings[3].teamIdList.Add(new CharacterView(0,null));
        
        
        Debug.Log("testTeamSetting ready");
    }
    public void openTeamSettingPanel()=> teamSettingPanelInstance.gameObject.SetActive(true);
    public void closeTeamSettingPanel()=> teamSettingPanelInstance.gameObject.SetActive(false);

    public void setCurrentSelectedTeam(int index)
    {
        if (index > 3 || index < 0)
        {
            Debug.LogWarning("所选队伍预设索引超出范围");
            return;
        }
        currentSelectedTeam = index;
    }
    void Start()
    {
        // if(teamSettingPanelInstance == null)
        // {
        //     teamSettingPanelInstance = teamSettingPanel.Instance;
        // }
        testTeamSetting();//接入玩家存档后请注释掉此行
    }
    void saveTeamSetting()
    {
        //todo:我想，在接存档系统的时候这个会有用。
    }
    /// <summary>
    /// 读取玩家存档信息后可直接在此写入编队信息
    /// </summary>
    /// <param name="playerTeamSettings"></param>
    public void setcurrentTeamSettings(Dictionary<int,TeamSetting> playerTeamSettings)
    {
        currentTeamSettings = playerTeamSettings;
    }
    /// <summary>
    /// 依据选定的队伍预设索引来获得队伍信息
    /// </summary>
    /// <returns></returns>
    public TeamSetting getCurrentSelectedTeam()
    {
        return currentTeamSettings[currentSelectedTeam];
    }

    public void setCurrentSelectedTeam(TeamSetting newTeamData, int teamIndex)
    {
        currentTeamSettings[teamIndex] = newTeamData;
    }
    public void setCurrentSelectedCharacterInTeam(int characterIndex)
    {
        if (characterIndex != currentSelectedTeamCharacter)
        {
            Debug.Log($"修改选中对象从{currentSelectedTeamCharacter}到{characterIndex}");
            currentSelectedTeamCharacter = characterIndex;
            OnSelectedCharacterChanged?.Invoke(); // 触发事件
        }
    }

    public void setCurrentSelectedTeamSetting(int teamIndex)
    {
        if(teamIndex != currentSelectedTeam)
        {
            Debug.Log($"修改选中队伍预设从{currentSelectedTeam}到{teamIndex}");
            currentSelectedTeam = teamIndex;
            OnSelectedTeamChanged?.Invoke(); // 触发事件
        }
    }
    /// <summary>
    /// 交换指定索引中的两个队伍中元素的位置
    /// </summary>
    /// <param name="firstIndex">当前元素</param>
    /// <param name="secondIndex">目标元素位置</param>
    public void swapTeamElements(int firstIndex, int secondIndex)
    {
        List<CharacterView> newCurrentTeam = getCurrentSelectedTeam().teamIdList;
        CharacterView temp = newCurrentTeam[firstIndex];
        newCurrentTeam[firstIndex] = newCurrentTeam[secondIndex];
        newCurrentTeam[secondIndex] = temp;
        currentTeamSettings[currentSelectedTeam].teamIdList = newCurrentTeam;
        teamSettingPanelInstance.updateTeamSettingElements();
        setCurrentSelectedCharacterInTeam(secondIndex);

    }

    public void setTeamLeader(int characterID)
    {
        Debug.Log($"{characterID},{SelectableCharacterList.Count}");
        currentTeamSettings[currentSelectedTeam].LeaderId=characterID;
        teamSettingPanelInstance.updateTeamSettingElements();
    }
    /// <summary>
    /// 填入或者覆盖队伍指定位置的信息
    /// </summary>
    /// <param name="aimListIndex"></param>
    public void ResetTeamCharacter (int aimListIndex)
    {
        //如果在队伍中已有角色的情况下再次触发此方法，首先要去掉旧信息，再放新信息
        CharacterView newCharacter = currentSelectedCharacterCard;
        List<CharacterView> newCurrentTeam = getCurrentSelectedTeam().teamIdList;
        
        if (aimListIndex > 0 || aimListIndex < newCurrentTeam.Count)
        {
            for(int i=0;i<newCurrentTeam.Count;i++)
            {
                if (newCurrentTeam[i].characterId == newCharacter.characterId && aimListIndex != i)//满足此条件为更换角色的队伍位置
                {
                     //说明是在更换角色所在的位置下标,旧角色，位置置空
                     newCurrentTeam[aimListIndex] = newCharacter;
                     CharacterView characterView = new CharacterView(0, null);
                     newCurrentTeam[i] = characterView;
                     currentTeamSettings[currentSelectedTeam].teamIdList = newCurrentTeam;
                     teamSettingPanelInstance.updateTeamSettingElements();
                     return;
                }
                else if (newCurrentTeam[i].characterId == newCharacter.characterId && aimListIndex == i)
                {
                    //原地点击操作，不做任何操作
                    return;
                }
            }
        }
        newCurrentTeam[aimListIndex] = newCharacter;
        currentTeamSettings[currentSelectedTeam].teamIdList = newCurrentTeam;
        teamSettingPanelInstance.updateTeamSettingElements();
    }
    /// <summary>
    /// 移除队伍中的指定角色
    /// </summary>
    /// <param name="characterID"></param>
    public void removeTeamCharacter(int characterId)
    {
        currentSelectedCharacterCard = null;
        List<CharacterView> newCurrentTeam = getCurrentSelectedTeam().teamIdList;
        foreach (CharacterView character in newCurrentTeam)
        {
            if (character.characterId == characterId)
            {
                character.characterId = 0;
                character.currentBoundaryLevel = null;
            }
        }
        currentTeamSettings[currentSelectedTeam].teamIdList = newCurrentTeam;
        teamSettingPanelInstance.updateTeamSettingElements();
    }
    
}