using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using FSEvent;
using FSBattle;
using FSCard;

public class CardPanelManager : MonoBehaviour {
    public Transform cardPanel;
    public GameObject cardPrefab;

    // 牌比较区中的牌间距
    private int spaceX = 80;
    private int spaceY = 120;

    // 牌缩小的值
    private float cardScale = 0.6f;

	// Use this for initialization
	void Start () {
        InitEvents();
    }
	
	// Update is called once per frame
	void Update () {
		
	}

    private void OnDestroy() {
        RemoveEvents();
    }

    /*
     * 注册监听事件
    */
    private void InitEvents() {
        print("Card Panel 注册事件 ... ");

        EventListener.Instance.RegisterEvent(EventEnum.EVENT_PLAYER_SHUFFLING_CARD, ShufflingCard);
        EventListener.Instance.RegisterEvent(EventEnum.EVENT_CLEAR_HAND_CARDS, ClearHandCards);
        EventListener.Instance.RegisterEvent(EventEnum.EVENT_CLEAR_COMPAIRE_CARDS, ClearCompaireCards);
        EventListener.Instance.RegisterEvent(EventEnum.EVENT_REMOVE_TARGET_CARD, RemoveTargetCard);
        EventListener.Instance.RegisterEvent(EventEnum.EVENT_ENEMY_DEAL_CARD, EnemyDealCard);
        EventListener.Instance.RegisterEvent(EventEnum.EVENT_ARMY_DEAL_CARD, ArmyDealCard);
    }

    /*
     * 移除监听事件
    */
    private void RemoveEvents() {
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_PLAYER_SHUFFLING_CARD);
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_CLEAR_HAND_CARDS);
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_CLEAR_COMPAIRE_CARDS);
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_REMOVE_TARGET_CARD);
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_ENEMY_DEAL_CARD);
        EventListener.Instance.RemoveEvent(EventEnum.EVENT_ARMY_DEAL_CARD);
    }

    /*
     * 发牌
    */
    private void ShufflingCard() {
        // 如果手牌小于5，则
        if (BattleFieldManager.Instance.ArmyHandCards.Count < 5 && 
            BattleFieldManager.Instance.EnemyHandCards.Count < 5) {

            AddPlayerCard();
            AddEnemyCard();
            Invoke("ShufflingCard", 1.0f);
        } else {
            Invoke("NoticeEnemyDeal", 2.0f);
        }
    }

    /*
     * 通知可以进入敌人出牌的回合了
    */
    private void NoticeEnemyDeal() {
        EventListener.Instance.PostEvent(EventEnum.EVENT_ENTER_ENEMY_DEAL_ROUND);
    }
     
    /*
     *  添加卡牌
     */
    public void AddPlayerCard() {
        // 保证卡池中有牌
        if (BattleFieldManager.Instance.ArmyTakePool.Count > 0) {
            // 从卡池中取出一张牌放入手牌中
            Transform cardTrs = (Transform)BattleFieldManager.Instance.ArmyTakePool[0];
            // 加入手牌
            BattleFieldManager.Instance.ArmyHandCards.Add(cardTrs);
            // 从卡池中移除
            BattleFieldManager.Instance.ArmyTakePool.Remove(cardTrs);
            cardTrs.SetParent(cardPanel, false);
            // 添加卡片事件组件，如果没有，则添加事件
            CardAction action = cardTrs.GetComponent<CardAction>();
            if (action == null){
                cardTrs.gameObject.AddComponent<CardAction>();
            }

            // 通知修改
            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("index", 0);
            info.Add("num", BattleFieldManager.Instance.ArmyTakePool.Count);

            EventListener.Instance.PostEvent(EventEnum.EVENT_UPDATE_TABLE_INFO, info);
        } else {
            // 如果卡池中没有牌了，将弃牌区的卡全部放回卡池
            foreach(Transform cardTrs in BattleFieldManager.Instance.ArmyThrowPool) {
                BattleFieldManager.Instance.ArmyTakePool.Add(cardTrs);
            }

            BattleFieldManager.Instance.ArmyThrowPool.Clear();

            // 更新牌池数量显示
            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("index", 0);
            info.Add("num", BattleFieldManager.Instance.ArmyThrowPool.Count);

            EventListener.Instance.PostEvent(EventEnum.EVENT_UPDATE_TABLE_INFO, info);

            info["index"] = 1;
            info["num"] = 0;

            EventListener.Instance.PostEvent(EventEnum.EVENT_UPDATE_TABLE_INFO, info);
        }

        ArrangePlayerCards();
    }

    /*
     * 添加敌人卡牌
    */
    private void AddEnemyCard() {
        // 获取位置
        int index = BattleFieldManager.Instance.EnemyHandCards.Count;
        // 从卡池中获取卡片
        if (BattleFieldManager.Instance.EnemyTakePool.Count > 0) {
            // 从卡池取出手牌
            Transform cardTrs = (Transform)BattleFieldManager.Instance.EnemyTakePool[0];
            // 加入手牌
            BattleFieldManager.Instance.EnemyHandCards.Add(cardTrs);
            // 从卡池中移除
            BattleFieldManager.Instance.EnemyTakePool.Remove(cardTrs);
            cardTrs.SetParent(cardPanel);
            cardTrs.localScale = new Vector3(cardScale, cardScale, 1);
            cardTrs.localPosition = new Vector3(Screen.width / 2, Screen.height / 2 + index * 30, 0);
            // 如果有卡片事件组件，如果有则将事件移除
            //CardAction action = cardTrs.GetComponent<CardAction>();
            //if (action != null) {
            //    Object.Destroy(action);
            //}
        } else {
            // 如果卡池中没有牌了，将弃牌区的卡全部放回卡池
            foreach(Transform cardTrs in BattleFieldManager.Instance.EnemyThrowPool) {
                BattleFieldManager.Instance.EnemyTakePool.Add(cardTrs);
            }

            BattleFieldManager.Instance.EnemyThrowPool.Clear();
        }
    }

    /*
     * 重新排列卡牌
    */
    private void ArrangePlayerCards() {
        // 空隙
        float space = 50;
        // 配置的半径
        float radius = 400;
        // 获取偏移的角度
        float angle = Mathf.Atan(space / radius) * 180 / Mathf.PI;

        // 遍历数组
        for (int i = 0; i < BattleFieldManager.Instance.ArmyHandCards.Count; i++) {
            // 重定义位置
            float loc = i - (float)(BattleFieldManager.Instance.ArmyHandCards.Count - 1) / 2;
            
            Transform cardTransform = (Transform)BattleFieldManager.Instance.ArmyHandCards[i];
            // 设置位置
            cardTransform.localPosition = new Vector3(loc * space, 0, 0);
            CardAction action = cardTransform.GetComponent<CardAction>();
            action.StartPos = cardTransform.position;
            // 设置角度
            cardTransform.localRotation = Quaternion.Euler(0, 0, angle * (loc * -1));

            float scale = 1 - (Mathf.Abs(loc) / 5);
            cardTransform.localScale = new Vector3(scale, scale, 1);
        }
    }

    /*
     * 玩家出牌，由外部通知进行处理
    */
    private void ArmyDealCard(Dictionary<string, object> info) {
        print("我的牌出了 ... ");

        int originX = Screen.width / 2 - spaceX / 2 - 30;
        int originY = Screen.height / 2 + 50;
        Transform cardTrs = (Transform)info["card"];
        // 将传入的牌从手牌数组中移，再加入到比较牌数组中
        BattleFieldManager.Instance.ArmyHandCards.Remove(cardTrs);
        BattleFieldManager.Instance.ArmyCpArray.Add(cardTrs);

        // 放置位置
        int line = (BattleFieldManager.Instance.ArmyCpArray.Count - 1) / 3;
        int row = (BattleFieldManager.Instance.ArmyCpArray.Count - 1) % 3;

        cardTrs.position = new Vector3(originX - row * spaceX, originY - line * spaceY);
        cardTrs.localScale = new Vector3(cardScale, cardScale, 1);
        cardTrs.localRotation = Quaternion.Euler(0, 0, 0);

        // 重新排列
        ArrangePlayerCards();
    }

    /*
     * 敌人出牌
    */
    private void EnemyDealCard() {
        // 敌人出牌
        print("敌人出牌 ... ");

        int index = 0;
        int originX = Screen.width / 2 + spaceX / 2 + 30;
        int originY = Screen.height / 2 + 50;

        // 从数组中选出几张牌放入卡牌管理器的选择数组中
        while (BattleFieldManager.Instance.EnemyHandCards.Count > 0) {
            Transform cardTrs = (Transform)BattleFieldManager.Instance.EnemyHandCards[0];
            // 将此卡牌放入选择数组中
            BattleFieldManager.Instance.EnemyCpArray.Add(cardTrs);
            BattleFieldManager.Instance.EnemyHandCards.Remove(cardTrs);
            // 移动位置

            int line = index / 3;
            int row = index % 3;

            cardTrs.position = new Vector3(originX + row * spaceX, originY - line * spaceY);

            index++;
        }

        Invoke("NotifyPlayerDeal", 0.2f);
    }

    /*
     * 通知玩家出牌
    */
    private void NotifyPlayerDeal() {
        EventListener.Instance.PostEvent(EventEnum.EVENT_ENTER_PLAYER_DEAL_ROUND);
    }

    /*
     * 移除指定的卡片
    */
    private void RemoveTargetCard(Dictionary<string, object> info) {
        // 首先获取卡片
        Transform card = (Transform)info["card"];
        // 从视图和数组中
        Destroy(card.gameObject);
        BattleFieldManager.Instance.ArmyHandCards.Remove(card);

        // 重新排列
        ArrangePlayerCards();
    }

    /*
     * 清理手牌
    */
    private void ClearHandCards() {
        // 清理我方手牌
        while (BattleFieldManager.Instance.ArmyHandCards.Count > 0) {
            Transform cardTrs = (Transform)BattleFieldManager.Instance.ArmyHandCards[0];
            // 首先将卡片从数组移除，计入弃牌数组
            BattleFieldManager.Instance.ArmyHandCards.Remove(cardTrs);
            BattleFieldManager.Instance.ArmyThrowPool.Add(cardTrs);

            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("card", cardTrs);
            info.Add("num", BattleFieldManager.Instance.ArmyThrowPool.Count);
            info.Add("index", 1);
            EventListener.Instance.PostEvent(EventEnum.EVENT_ERASE_CARD, info);
            EventListener.Instance.PostEvent(EventEnum.EVENT_UPDATE_TABLE_INFO, info);
        }
        
        // 清理敌方手牌
        while (BattleFieldManager.Instance.EnemyHandCards.Count > 0) {
            Transform cardTrs = (Transform)BattleFieldManager.Instance.EnemyHandCards[0];
            // 将卡片从数组移除，放入弃牌卡组中
            BattleFieldManager.Instance.EnemyHandCards.Remove(cardTrs);
            BattleFieldManager.Instance.ArmyThrowPool.Add(cardTrs);
            // 通知更新位置
            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("card", cardTrs);
            info.Add("num", BattleFieldManager.Instance.ArmyThrowPool.Count);
            info.Add("index", 1);
            EventListener.Instance.PostEvent(EventEnum.EVENT_ERASE_CARD, info);
        }

        EventListener.Instance.PostEvent(EventEnum.EVENT_ENTER_PLAY_A_HAND_ROUND);
    }

    /*
     * 清理比较牌
    */
    private void ClearCompaireCards() {
        // 清理我方比较牌
        while (BattleFieldManager.Instance.ArmyCpArray.Count > 0) {
            Transform cardTrs = (Transform)BattleFieldManager.Instance.ArmyCpArray[0];
            // 将卡片从数组移除，加入弃牌数组
            BattleFieldManager.Instance.ArmyCpArray.Remove(cardTrs);
            BattleFieldManager.Instance.ArmyThrowPool.Add(cardTrs);

            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("card", cardTrs);
            info.Add("num", BattleFieldManager.Instance.ArmyThrowPool.Count);
            info.Add("index", 1);
            EventListener.Instance.PostEvent(EventEnum.EVENT_ERASE_CARD, info);
            EventListener.Instance.PostEvent(EventEnum.EVENT_UPDATE_TABLE_INFO, info);
        }
        
        // 清理敌方比较牌
        while (BattleFieldManager.Instance.EnemyCpArray.Count > 0) {
            Transform cardTrs = (Transform)BattleFieldManager.Instance.EnemyCpArray[0];
            // 将卡片从数组移除，放入弃牌卡组中
            BattleFieldManager.Instance.EnemyCpArray.Remove(cardTrs);
            BattleFieldManager.Instance.EnemyThrowPool.Add(cardTrs);
            // 通知更新位置
            Dictionary<string, object> info = new Dictionary<string, object>();
            info.Add("card", cardTrs);
            info.Add("num", BattleFieldManager.Instance.EnemyThrowPool.Count);
            info.Add("index", 1);
            EventListener.Instance.PostEvent(EventEnum.EVENT_ERASE_CARD, info);
        }
    }
}