using System;
using System.Collections.Generic;
using UnityEngine;

public class BattleEffectMgr : MonoBehaviour
{
    private BattleField battleField;

    private Dictionary<int, List<EffectPlayer>> effectDict = new Dictionary<int, List<EffectPlayer>>();

    public void Init(BattleField _battleField)
    {
        battleField = _battleField;
    }

    public void PauseGame()
    {
        foreach (KeyValuePair<int, List<EffectPlayer>> kvPair in effectDict)
        {
            foreach (EffectPlayer effectPlayer in kvPair.Value)
            {
                if (effectPlayer != null)
                {
                    effectPlayer.Pause();
                }
            }
        }
    }

    public void ResumeGame()
    {
        foreach (KeyValuePair<int, List<EffectPlayer>> kvPair in effectDict)
        {
            foreach (EffectPlayer effectPlayer in kvPair.Value)
            {
                if (effectPlayer != null)
                {
                    effectPlayer.Resume();
                }
            }
        }
    }

    public EffectPlayer PlayEffect(int ObjID, int effectId, Transform parent)
    {
        if (!effectDict.ContainsKey(effectId))
        {
            effectDict[effectId] = new List<EffectPlayer>();
        }

        EffectPlayer effectPlayer = EffectPlayer.Create(effectId, parent);
        effectPlayer.onDestroy += OnEffectDestroy;
        if (effectPlayer != null)
        {
            effectDict[effectId].Add(effectPlayer);
        }
        return effectPlayer;
    }

    public void RemoveEffect(int effectId, EffectPlayer effectPlayer)
    {
        List<EffectPlayer> effectPlayers = null;

        if (effectDict.TryGetValue(effectId, out effectPlayers))
        {
            effectPlayers.Remove(effectPlayer);
            GameObject.DestroyImmediate(effectPlayer.gameObject);
            effectPlayer = null;
        }
        else
        {
            Debug.LogError("could not find effect in list, effectid : " + effectId);
        }
    }

    protected void OnEffectDestroy(EffectPlayer effectPlayer)
    {
        if (effectDict.ContainsKey(effectPlayer.effectId))
        {
            effectDict[effectPlayer.effectId].Remove(effectPlayer);
            if (effectDict[effectPlayer.effectId].Count == 0)
            {
                effectDict.Remove(effectPlayer.effectId);
            }
        }
    }

    public void HaveRest()
    {
        foreach (KeyValuePair<int, List<EffectPlayer>> kvPair in effectDict)
        {
            foreach (EffectPlayer effectPlayer in kvPair.Value)
            {
                if (effectPlayer != null)
                {
                    GameObject.DestroyImmediate(effectPlayer.gameObject);
                }
            }
        }
        effectDict.Clear();
    }

    public void Release()
    {
        foreach (var effect in effectDict)
        {
            foreach (var effectPlayer in effect.Value)
            {
                if (effectPlayer != null)
                {
                    GameObject.DestroyImmediate(effectPlayer.gameObject);
                }
            }
        }

        effectDict.Clear();
    }
}