using BrewMonster.Network;
using BrewMonster.Scripts.Skills;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;

namespace BrewMonster
{

    // CECSkillStr class - inherits from SkillStr
    public class CECSkillStr : SkillStr
    {
        public override string Find(int id)
        {
            // TODO: Implement GetNameDisplay - requires game instance access
            BrewMonster.CECStringTab pStrTab = EC_Game.GetSkillDesc();
            string str = pStrTab.GetWideString(id);
            return string.IsNullOrEmpty(str) ? string.Empty : str;
        }
    }

    // Skill array wrapper structure
    public struct SkillArrayWrapper
    {
        public Dictionary<uint, int> skillDic;

        public SkillArrayWrapper(Dictionary<uint, int> rhs)
        {
            skillDic = rhs ?? new Dictionary<uint, int>();
            RemoveInvalid();
        }

        // Remove invalid skills (for example, those with ID == 0)
        public void RemoveInvalid()
        {
            if (skillDic == null) return;

            var invalidKeys = skillDic
                .Where(kv => kv.Key == 0)
                .Select(kv => kv.Key)
                .ToList();

            foreach (var key in invalidKeys)
                skillDic.Remove(key);
        }

        public bool Find(uint id)
        {
            return skillDic != null && skillDic.ContainsKey(id);
        }

        public bool Empty()
        {
            return skillDic == null || skillDic.Count == 0;
        }

        public int Count()
        {
            return skillDic?.Count ?? 0;
        }

        public uint this[int index]
        {
            get
            {
                if (skillDic == null || index < 0 || index >= skillDic.Count)
                    throw new System.IndexOutOfRangeException();

                return skillDic.ElementAt(index).Key;
            }
        }
    }
    // CECSkill class
    public class CECSkill
    {

        // Skill type enum
        public enum SkillType
        {
            TYPE_ATTACK = 1,        // 攻击技能
            TYPE_BLESS,             // 祝福技能
            TYPE_CURSE,             // 诅咒技能
            TYPE_SUMMON,            // 召唤
            TYPE_PASSIVE,           // 被动
            TYPE_ENABLED,           // 启用
            TYPE_LIVE,              // 生活
            TYPE_FLASHMOVE,         // 瞬移
            TYPE_PRODUCE,           // 生产
            TYPE_BLESSPET,          // 宠物祝福
            TYPE_NEUTRALBLESS,      // 中立祝福
        }

        // Range type enum
        public enum RangeType
        {
            RANGE_POINT = 0,        // 点
            RANGE_LINE,             // 线
            RANGE_SELFSPHERE,       // 自身为圆心的圆
            RANGE_TARGETSPHERE,     // 目标为圆心的圆
            RANGE_TAPER,            // 圆锥
            RANGE_SLEF,             // 自身
        }

        private ElementSkill m_pSkillCore;
        private int m_idSkill;
        private int m_iLevel;
        private int m_iCoolCnt;
        private int m_iCoolTime;
        private bool m_bCooling;
        private int m_iChargeCnt;
        private int m_iChargeMax;
        public int ChargeMax => m_iChargeMax;
        private bool m_bCharging;

        private static CECSkillStr l_SkillStr = new CECSkillStr();

        public ElementSkill SkillCore => m_pSkillCore;

        // Constructor
        public CECSkill(int id, int iLevel)
        {
            if (iLevel < 0) return;
            m_pSkillCore = ElementSkill.Create((uint)id, iLevel);
            if (m_pSkillCore == null)
            {
                // Fallback to default skill
                m_pSkillCore = ElementSkill.Create(1, 1);
            }

            m_idSkill = id;
            m_iLevel = iLevel;
            m_iCoolTime = m_pSkillCore != null ? m_pSkillCore.GetCoolingTime() : 0;
            m_iCoolCnt = 0;
            m_bCooling = false;
            m_iChargeCnt = 0;
            m_iChargeMax = 0;
            m_bCharging = false;
        }

        // Tick routine
        public void Tick(float deltaTime)
        {
            // Convert deltaTime (seconds) to milliseconds
            int tickTime = (int)(deltaTime * 1000f);

            if (m_bCooling)
            {
                m_iCoolCnt -= tickTime;
                if (m_iCoolCnt <= 0)
                {
                    m_iCoolCnt = 0;
                    m_bCooling = false;
                    // TODO: do something here ?
                }
            }

            if (m_bCharging)
            {
                // In charging state
                m_iChargeCnt += tickTime;
                if (m_iChargeCnt >= m_iChargeMax)
                {
                    m_iChargeCnt = m_iChargeMax;
                    m_bCharging = false;
                    // TODO: do something here ?
                }
            }
        }

        // Skill level up
        public void LevelUp()
        {
            m_iLevel++;
            if (m_pSkillCore != null)
            {
                m_pSkillCore.SetLevel(m_iLevel);
            }
        }

        // Set Skill level
        public void SetLevel(int iLevel)
        {
            m_iLevel = iLevel;
            if (m_pSkillCore != null)
            {
                m_pSkillCore.SetLevel(m_iLevel);
            }
        }

        // Start into cooling state
        // iTotalTime: total cooling time, 0 means to use cooling time in database
        public void StartCooling(int iTotalTime, int iStartCnt)
        {
            m_iCoolTime = iTotalTime != 0 ? iTotalTime : GetCoreCoolingTime();
            m_iCoolCnt = iStartCnt;
            m_bCooling = true;
        }
        public bool ValidWeapon(int idWeapon) { return m_pSkillCore.ValidWeapon(idWeapon); }

        // Ready to be cast ?
        public bool ReadyToCast()
        {
            return !m_bCooling;
        }

        // Get cooling time counter
        public int GetCoolingCnt()
        {
            return m_iCoolCnt;
        }

        // Get total cooling time
        public int GetCoolingTime()
        {
            return m_iCoolTime;
        }

        // Start charging
        public void StartCharging(int iChargeMax)
        {
            if (m_pSkillCore != null && m_pSkillCore.IsWarmup())
            {
                m_iChargeMax = iChargeMax;
                m_iChargeCnt = 0;
                m_bCharging = true;
            }
        }

        // End charging
        public void EndCharging()
        {
            m_bCharging = false;
        }

        // Get charging flag
        public bool IsCharging()
        {
            return m_bCharging;
        }

        // Get charging counter
        public int GetChargingCnt()
        {
            return m_iChargeCnt;
        }

        // Get charging maximum count
        public int GetChargingMax()
        {
            return m_iChargeMax;
        }

        // Charge full
        public bool ChargeFull()
        {
            return m_pSkillCore != null && m_pSkillCore.IsWarmup() && m_iChargeCnt >= m_iChargeMax;
        }

        // Get skill ID
        public int GetSkillID()
        {
            return m_idSkill;
        }

        // Get skill level
        public int GetSkillLevel()
        {
            return m_iLevel;
        }

        // Get skill icon file
        public string GetIconFile()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetIcon() ?? string.Empty : string.Empty;
        }

        public string GetName()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetName() ?? string.Empty : string.Empty;
        }

        public string GetNameDisplay()
        {
            return EC_Game.GetSkillDesc().GetWideString(GetSkillID() * 10);
        }

        public StringBuilder GetDesc()
        {
            if (m_pSkillCore == null || l_SkillStr == null)
                return null;

            StringBuilder sb = new StringBuilder(1024);
            m_pSkillCore.GetIntroduction(sb, l_SkillStr);
            return sb;
        }
        public static StringBuilder GetDesc(int idSkill, int iLevel, StringBuilder szText, int iBufLen)
        {
            if (szText == null || iBufLen == 0)
                return null;

            CECSkill pSkill = new CECSkill(idSkill, iLevel);
            if (pSkill == null)
            {
                return null;
            }
            szText = pSkill.GetDesc();
            return szText;
        }
        public int GetCoreCoolingTime()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetCoolingTime() : 0;
        }
        public int GetComboSkPreSkill() { return m_pSkillCore.GetComboSkPreSkill(); }

        public int GetExecuteTime()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetExecuteTime() : 0;
        }
        public int GetCommonCoolDown() { return m_pSkillCore.GetCommonCoolDown(); }

        public int GetType()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetType() : 0;
        }

        public int GetRangeType()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetRangeType() : 0;
        }

        public float GetCastRange(float fAtkDist, float fPrayDistancePlus)
        {
            return m_pSkillCore != null ? m_pSkillCore.GetPrayRange(fAtkDist, fPrayDistancePlus) : 0f;
        }
        public string GetEffect()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetEffect() ?? string.Empty : string.Empty;
        }

        public int GetTargetType()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetTargetType() : 0;
        }

        public int GetCastEnv()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetCastEnv() : 0;
        }

        /*  public int[] GetRequiredGenius()
          {
              return m_pSkillCore != null ? m_pSkillCore.GetRequiredGenius(m_idSkill) ?? new int[0] : new int[0];
          }*/

        public int GetShowOrder()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetShowOrder() : 0;
        }

        public bool IsChargeable()
        {
            return m_pSkillCore != null && m_pSkillCore.IsWarmup();
        }

        /*  public string GetNativeName()
          {
              return m_pSkillCore != null ? m_pSkillCore.GetNativeName() ?? string.Empty : string.Empty;
          }*/

        /*
                public bool ValidShape(int iShape)
                {
                    return m_pSkillCore != null && m_pSkillCore.IsValidForm((char)iShape);
                }*/

        public bool ChangeToMelee()
        {
            return m_pSkillCore != null && m_pSkillCore.IsAutoAttack();
        }

        public bool IsInstant()
        {
            return m_pSkillCore != null && m_pSkillCore.IsInstant();
        }

        public bool IsDurative()
        {
            return m_pSkillCore != null && m_pSkillCore.IsDurative();
        }

        public SkillArrayWrapper GetJunior()
        {
            var juniorList = m_pSkillCore.GetJunior();
            return new SkillArrayWrapper(juniorList);
        }

        public int GetRequiredLevel()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetRequiredLevel() : 0;
        }

        public int GetRequiredBook()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetRequiredBook() : 0;
        }

        /*   public SkillArrayWrapper GetRequiredSkill()
           {
               return m_pSkillCore != null ? m_pSkillCore.GetRequiredSkill() : new SkillArrayWrapper(new List<SkillArrayWrapper.IDLevelPair>());
           }*/

        /* public int GetRequiredItem()
         {
             return m_pSkillCore != null ? m_pSkillCore.GetItemCost() : 0;
         }*/

        // 获取技能公共冷却mask，其中bit0-4为技能公共冷却，bit5-9为物品公共冷却
        /*        public int GetCommonCoolDown()
                {
                    return m_pSkillCore != null ? m_pSkillCore.GetCommonCoolDown() : 0;
                }*/

        // 获取技能公共冷却时间，单位毫秒
        /*   public int GetCommonCoolDownTime()
           {
               return m_pSkillCore != null ? m_pSkillCore.GetCommonCoolDownTime() : 0;
           }*/

        // Check skill type
        public bool IsGoblinSkill()
        {
            return m_pSkillCore != null && m_pSkillCore.GetCls() == 258;
        }

        public bool IsPlayerSkill()
        {
            // TODO: NUM_PROFESSION should be defined elsewhere
            const int NUM_PROFESSION = 256; // Placeholder
            int cls = m_pSkillCore != null ? m_pSkillCore.GetCls() : -1;
            return cls >= 0 && cls < NUM_PROFESSION;
        }

        public bool IsGeneralSkill()
        {
            return GetCls() == 255;
        }

        public int GetCls()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetCls() : -1;
        }

        // 技能等级
        public int GetRank()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetRank() : 0;
        }

        // 技能最大等级
        public int GetMaxLevel()
        {
            return m_pSkillCore != null ? m_pSkillCore.GetMaxLevel() : 0;
        }

        /*  public int GetComboSkPreSkill()
          {
              return m_pSkillCore != null ? m_pSkillCore.GetComboSkPreSkill() : 0;
          }*/

        public bool IsPositiveSkill()
        {
            int t = GetType();
            return t != (int)SkillType.TYPE_PASSIVE
                && t != (int)SkillType.TYPE_PRODUCE
                && t != (int)SkillType.TYPE_LIVE;
        }
    }
}