using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using utils;
using Transform = UnityEngine.Transform;

public class teamSettingPanel : MonoBehaviour
{
    /// <summary>
    /// Documentation text normalized.
    [SerializeField]
    public GameObject teamSettingPanelObj;
    /// <summary>
    /// Documentation text normalized.
    /// </summary>
    [SerializeField]
    public GameObject[] teamElementsObj;
    /// <summary>
    /// Documentation text normalized.
    /// </summary>
    [SerializeField] public TeamIndexSetterView[] teamSettingButtonStatusObj;
    /// <summary>
    /// Documentation text normalized.
    /// </summary>
    [SerializeField]
    public TeamCharacterList teamCharacterList;
    /// <summary>
    /// Documentation text normalized.
    [SerializeField]
    public TeamCharacterLevelData teamCharacterLevelData;
    /// <summary>
    /// Documentation text normalized.
    [SerializeField]
    public GameObject teamCharacterPrefab;
    [SerializeField]
    public RectTransform teamCharacterViewContent;

    private TeamManager teamManager;
    
    
    public static teamSettingPanel Instance{get;private set;}

    void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
        }
        else
        {
            Destroy(gameObject);
        }
    }

    void Start()
    {
        teamManager = TeamManager.Instance;
        if(teamManager!=null)
        {
            teamManager.OnSelectedCharacterChanged += updateTeamCharacterSelectedStatus;
            
            teamManager.OnSelectedTeamChanged += updateTeamSettingSelectedStatus;
            teamManager.OnSelectedTeamChanged += updateTeamSettingElements;
            teamManager.OnSelectedTeamChanged += updateSelectableCharacterViewList;
        }
        updateTeamSettingElements();
        updateSelectableCharacterViewList();
        // StartCoroutine(UpdateTeamSettingAfterOneFrame());
        // StartCoroutine(UpdateSelectableCharacterAfterOneFrame());
    }
    void OnDestroy()
    {
        if (teamManager != null)
        {
            teamManager.OnSelectedCharacterChanged -= updateTeamCharacterSelectedStatus;
            
            teamManager.OnSelectedTeamChanged -= updateTeamSettingSelectedStatus;
            teamManager.OnSelectedTeamChanged -= updateTeamSettingElements;
            teamManager.OnSelectedTeamChanged -= updateSelectableCharacterViewList;
        }
    }
    /// <summary>
    /// Documentation text normalized.
    /// </summary>
    /// <param name="index"></param>
    public void updateSelectedTeam(int index)
    {
        teamManager.setCurrentSelectedTeam(index);
        updateTeamSettingElements();
    }
    public TeamCharacterDataInfo getCharacterViewInfo(int characterID)
    {
        if (teamCharacterList == null)
        {
            Debug.LogError("teamCharacterList is missing.");
            return null;
        }
        foreach (TeamCharacterDataInfo tcdi in teamCharacterList.characters)
        {
            if(tcdi.CharacterID==characterID)
            {
                return tcdi;
            }
        }
        Debug.LogWarning($"Character data not found for characterID={characterID}.");
        return null;
    }

    public Sprite getLevelSprite(string level)
    {
        if(level==null)
        {
            Debug.LogWarning("Level is null, cannot resolve level sprite.");
            return null;
        }

        switch (level)
        {
            case "S":
                return teamCharacterLevelData.LevelSSprite;
            case "A":
                return teamCharacterLevelData.LevelASprite;
            case "B":
                return teamCharacterLevelData.LevelBSprite;
            case "C":
                return teamCharacterLevelData.LevelCSprite;
            default:
                Debug.LogWarning($"No level sprite mapped for level '{level}'.");
                return null;
        }
    }
    /// <summary>
    /// Documentation text normalized.
    public void clearTeamSettingElements()
    {
        foreach (GameObject gameObject in teamElementsObj)
        {
            teamCharacterView t = gameObject.GetComponent<teamCharacterView>();
            if (t != null)
            {
                t.characterID = -1;
                t.charcterImg.sprite = null;
                t.charcterImg.color=new Color(t.charcterImg.color.r,t.charcterImg.color.g,t.charcterImg.color.b,0f);
                t.levelIcon.sprite = null;
                t.levelIcon.color=new Color(t.levelIcon.color.r,t.levelIcon.color.g,t.levelIcon.color.b,0f);
                t.skillName.text="";
                t.isLeader.SetActive(false);
                t.notLeader.SetActive(true);
            }
        }
    }
    public void updateTeamSettingElements()
    {
        // defensive guards
        if (teamManager == null) teamManager = TeamManager.Instance;
        if (teamManager == null)
        {
            Debug.LogWarning("teamSettingPanel.updateTeamSettingElements: TeamManager is null. Skipping update.");
            clearTeamSettingElements();
            return;
        }

        TeamSetting currentSelectedTeam = null;
        try { currentSelectedTeam = teamManager.getCurrentSelectedTeam(); } catch { currentSelectedTeam = null; }
        if (currentSelectedTeam == null)
        {
            clearTeamSettingElements();
            return;
        }

        if (currentSelectedTeam.teamIdList == null)
        {
            clearTeamSettingElements();
            return;
        }

        if (teamElementsObj == null)
        {
            Debug.LogWarning("teamSettingPanel.updateTeamSettingElements: teamElementsObj is null");
            return;
        }

        List<CharacterView> currentTeam = currentSelectedTeam.teamIdList;
        clearTeamSettingElements();
        for (int i = 0; i < teamElementsObj.Length && i < currentTeam.Count; i++)
        {
            if (teamElementsObj[i] == null) continue;
            if (currentTeam[i] == null) continue;

            teamCharacterView t = teamElementsObj[i].GetComponent<teamCharacterView>();
            if (t == null) continue;

            t.characterID= currentTeam[i].characterId;
            TeamCharacterDataInfo tcdi = getCharacterViewInfo(t.characterID);
            if (tcdi != null)
            {
                if (t.charcterImg != null) { t.charcterImg.sprite = tcdi.CharacterTeamSprite; t.charcterImg.color=new Color(t.charcterImg.color.r,t.charcterImg.color.g,t.charcterImg.color.b,1f); }
                if (t.levelIcon != null) { t.levelIcon.sprite = getLevelSprite(currentTeam[i].currentBoundaryLevel); t.levelIcon.color=new Color(t.levelIcon.color.r,t.levelIcon.color.g,t.levelIcon.color.b,1f); }
                if (t.skillName != null) t.skillName.text = tcdi.CharacterSkillName ?? string.Empty;
            }
            else
            {
                if (t.charcterImg != null) { t.charcterImg.sprite = null; t.charcterImg.color=new Color(t.charcterImg.color.r,t.charcterImg.color.g,t.charcterImg.color.b,0f); }
                if (t.levelIcon != null) { t.levelIcon.sprite = null; t.levelIcon.color=new Color(t.levelIcon.color.r,t.levelIcon.color.g,t.levelIcon.color.b,0f); }
                if (t.skillName != null) t.skillName.text="";
            }

            if(currentSelectedTeam.LeaderId==currentTeam[i].characterId)
            {
                if (t.isLeader != null) t.isLeader.SetActive(true);
                if (t.notLeader != null) t.notLeader.SetActive(false);
            }
            else
            {
                if (t.isLeader != null) t.isLeader.SetActive(false);
                if (t.notLeader != null) t.notLeader.SetActive(true);
            }
        }
    }
    /// <summary>
    /// Documentation text normalized.
    public void updateSelectableCharacterViewList()
    {
        foreach (Transform child in teamCharacterViewContent.transform)
        {
            Destroy(child.gameObject);
        }

        teamManager.currentSelectedCharacterCard = null;
        List<CharacterView> currentTeam = teamManager.getCurrentSelectedTeam().teamIdList;
        List<CharacterView> selectAbleCharacters = teamManager.SelectableCharacterList;
        foreach (CharacterView c in selectAbleCharacters)  //id and level
        {
            if (!IsCharacterUnlocked(c != null ? c.characterId : 0))
            {
                continue;
            }

            GameObject characterObj = Instantiate(teamCharacterPrefab, teamCharacterViewContent.transform);
            CharacterCardView ccv = characterObj.GetComponent<CharacterCardView>();
            TeamCharacterDataInfo tcdi = getCharacterViewInfo(c.characterId);
            if (ccv != null&& tcdi!=null)
            {
                ccv.characterID = tcdi.CharacterID;
                ccv.currentBoundaryLevel= c.currentBoundaryLevel;
                ccv.characterImage.sprite =tcdi.CharacterCardSprite;
                ccv.levelIcon.sprite = getLevelSprite(c.currentBoundaryLevel);
                ccv.occupationIcon.sprite = tcdi.CharacterRoleSprite;
            }

            if (checkExistenceStatus(currentTeam, ccv.characterID))
            {
                ccv.isSelected = true;
                ccv.characterImage.color = new Color(0.5f, 0.5f, 0.5f,1);
            }
        }
    }

    private bool IsCharacterUnlocked(int characterID)
    {
        if (characterID <= 0)
        {
            return false;
        }

        AllyHero_SO[] heroes = RuntimeResourcesCache.LoadAllAllyHeroes();
        for (int i = 0; i < heroes.Length; i++)
        {
            AllyHero_SO hero = heroes[i];
            if (hero != null && hero.ally_heroID == characterID)
            {
                return hero.isUnlocked;
            }
        }

        return false;
    }

    private bool checkExistenceStatus(List<CharacterView> currentTeam,int characterID)
    {
        foreach (CharacterView c in currentTeam)
        {
            if (c.characterId == characterID)
                return true;
        }
        return false;
    }
    /// <summary>
    /// Documentation text normalized.
    public  void updateTeamCharacterSelectedStatus()
    {
        int currentSelectedCharacter = teamManager.currentSelectedTeamCharacter;
        for (int i = 0; i < teamElementsObj.Length; i++)
        {
            if (i != currentSelectedCharacter)
            {
                teamCharacterView teamCharacterView = teamElementsObj[i].GetComponent<teamCharacterView>();
                if(teamCharacterView!=null)
                {
                    teamCharacterView.SetUnSelected();
                }
            }
            else
            {
                teamCharacterView teamCharacterView = teamElementsObj[i].GetComponent<teamCharacterView>();
                teamCharacterView.SetSelected();
            }
        }
    }
    /// <summary>
    /// Documentation text normalized.
    public void rightChangeTeamSettingIndex()
    {
        int currentSelectedTeam = teamManager.currentSelectedTeam;
        if (currentSelectedTeam < 4)
        {
            teamManager.setCurrentSelectedTeamSetting(currentSelectedTeam + 1);
        }
    }
    /// <summary>
    /// Documentation text normalized.
    public void leftChangeTeamSettingIndex()
    {
        int currentSelectedTeam = teamManager.currentSelectedTeam;
        if(currentSelectedTeam>0)
        {
            teamManager.setCurrentSelectedTeamSetting(currentSelectedTeam - 1);
        }
    }
    public void updateTeamSettingSelectedStatus()
    {
        int currentSelectedTeam = teamManager.currentSelectedTeam;
        for(int i= 0;i<teamSettingButtonStatusObj.Length;i++)
        {
            if(i!=currentSelectedTeam)
            {
                teamSettingButtonStatusObj[i].setUnSelectedTeamSetting();
            }
            else
            {
                teamSettingButtonStatusObj[i].setTeamSettingSelect();
            }
            
        }
    }
    public void updateCharacter()
    {
        
    }
    
}