using System.Collections.Generic;
using UnityEngine;

public class CustomHB426CombinePack : GameNetPackBasic
{

    public HB426_tagSCTurnFightTag startTag;

    public HB426_tagSCTurnFightTag endTag;

    public int fromIndex;

    public int toIndex;

    public string guid;

    public List<GameNetPackBasic> packList = new List<GameNetPackBasic>();

    public override void ReadFromBytes(byte[] vBytes)
    {
        base.ReadFromBytes(vBytes);
    }

    public void SetHB426End(int _toIndex, HB426_tagSCTurnFightTag _endTag)
    {
        if (_endTag.Sign != 1)
        {
            Debug.LogError("HB426_tagSCTurnFightTag Sign must be 1 for end tag, but got: " + _endTag.Sign);
            return;
        }
        endTag = _endTag;
        toIndex = _toIndex;

        packList = CombineToSkillPackFromList(guid, packList);
    }


    public void SetHB426Start(int _fromIndex, HB426_tagSCTurnFightTag tag)
    {
        if (tag.Sign != 0)
        {
            Debug.LogError("HB426_tagSCTurnFightTag Sign must be 0 for start tag, but got: " + tag.Sign);
            return;
        }
        fromIndex = _fromIndex;
        startTag = tag;
    }

    public void AddPack(GameNetPackBasic pack)
    {
        if (startTag == null)
        {
            Debug.LogError("startTag is null, please set it first.");
            return;
        }

        packList.Add(pack);
    }

    public bool IsEndPack(HB426_tagSCTurnFightTag tag)
    {
        if (tag == null)
        {
            return false;
        }

        if (startTag == null)
        {
            Debug.LogError("startTag is null, please set it first.");
            return false;
        }

        return startTag.Tag == tag.Tag && tag.Sign == 1;
    }


    public static List<GameNetPackBasic> CombineToSkillPackFromList(string _guid, List<GameNetPackBasic> b421SeriesPackList)
    {
        CustomHB426CombinePack combinePack = null;
        for (int i = 0; i < b421SeriesPackList.Count; i++)
        {
            var pack = b421SeriesPackList[i];
            if (pack is HB426_tagSCTurnFightTag)
            {
                var tag = pack as HB426_tagSCTurnFightTag;
                if (null == combinePack)
                {
                    combinePack = new CustomHB426CombinePack();
                    combinePack.guid = _guid;
                    combinePack.SetHB426Start(i, tag);
                    continue;
                }
                else
                {
                    if (combinePack.IsEndPack(tag))
                    {
                        combinePack.SetHB426End(i, tag);
                        break;
                    }
                }
            }

            if (null != combinePack)
            {
                combinePack.AddPack(pack);
            }
        }

        List<GameNetPackBasic> newPackList = new List<GameNetPackBasic>();

        if (null != combinePack)
        {
            //  技能包前面的包（不包括b426的开始标签）
            for (int i = 0; i < combinePack.fromIndex; i++)
            {
                newPackList.Add(b421SeriesPackList[i]);
            }

            //  把合并的技能包加进来
            newPackList.Add(combinePack);

            //  技能包后面的包（不包括b426的结束标签）
            for (int i = combinePack.toIndex + 1; i < b421SeriesPackList.Count; i++)
            {
                newPackList.Add(b421SeriesPackList[i]);
            }

            return CombineToSkillPackFromList(_guid, newPackList);

        }
        else
        {
            return b421SeriesPackList;
        }

    }

    public void Distribute()
    {
        BattleField battleField = BattleManager.Instance.GetBattleField(guid);

        if (null == battleField)
        {
            Debug.LogError("BattleField not found for guid: " + guid);
            return;
        }

        var skillAction = CreateSkillAction();
        if (null != skillAction)
        {
            battleField.PlayRecord(skillAction);
        }
    }

    public SkillRecordAction CreateSkillAction()
    {
        BattleField battleField = BattleManager.Instance.GetBattleField(guid);

        if (null == battleField)
        {
            Debug.LogError("BattleField not found for guid: " + guid);
            return null;
        }

        if (startTag.Tag.StartsWith("Skill_"))
        {
            HB427_tagSCUseSkill skill = packList[0] as HB427_tagSCUseSkill;
            BattleObject _caster = battleField.battleObjMgr.GetBattleObject((int)skill.ObjID);
            SkillRecordAction skillAction = new SkillRecordAction(battleField, _caster, skill, packList);
            return skillAction;
        }

        return null;
    }
}