using UnityEngine;
using UnityEngine.UI;
using System;
using System.Collections;

public class AlertPanel : PopUpPanel {

	public const uint YES = 0x1;
	public const uint NO = 0x2;
	public const uint OK = 0x4;
	public const uint CANCEL = 0x8;

	public uint flags;

	protected string _okLabel;
	protected string _yesLabel;
	protected string _noLabel;
	protected string _cancelLabel;

	public Button okBtn;
	public Button yesBtn;
	public Button noBtn;
	public Button cancelBtn;

	public Text yesBtnText;
	public Text noBtnText;
	public Text cancelBtnText;
    public Text titleText;

	public Text contentText;
	protected float oldTextHeight = 0;

	protected event AlertPanelCloseDelegate closeEvent;
	public object data;

	void Awake()
	{
        Transform panelTrans = transform.FindChild("Panel");
        yesBtn = panelTrans.FindChild("BtnContainer/YesBtn").GetComponent<Button>();
        noBtn = panelTrans.FindChild("BtnContainer/NoBtn").GetComponent<Button>();
        cancelBtn = panelTrans.FindChild("BtnContainer/CancelBtn").GetComponent<Button>();
        if (panelTrans.FindChild("BtnContainer/OkBtn") != null)
            okBtn = panelTrans.FindChild("BtnContainer/OkBtn").GetComponent<Button>();
        yesBtnText = yesBtn.transform.FindChild("Text").GetComponent<Text>();
        noBtnText = noBtn.transform.FindChild("Text").GetComponent<Text>();
        cancelBtnText = cancelBtn.transform.FindChild("Text").GetComponent<Text>();
        titleText = panelTrans.FindChild("Title/Text").GetComponent<Text>();
        contentText = panelTrans.FindChild("Text").GetComponent<Text>();

        //redefine font
//        if(okBtn != null)
//            okBtn.GetComponentInChildren<Text>().font = Resources.Load<Font>(Language.GetFont());
//        contentText.font = Resources.Load<Font>(Language.GetFont());
//        titleText.font = Resources.Load<Font>(Language.GetFont());
//        yesBtnText.font = Resources.Load<Font>(Language.GetFont());
//        noBtnText.font = Resources.Load<Font>(Language.GetFont());
//        cancelBtnText.font = Resources.Load<Font>(Language.GetFont());

        //init sound
//        if (okBtn != null)
//        {
//            UISound okBtnSound = okBtn.gameObject.AddComponent<UISound>();
//            okBtnSound.soundType = UISound.Type.Normal;
//        }
//        UISound yesBtnSound = yesBtn.gameObject.AddComponent<UISound>();
//        yesBtnSound.soundType = UISound.Type.Normal;
//        UISound noBtnSound = noBtn.gameObject.AddComponent<UISound>();
//        noBtnSound.soundType = UISound.Type.Back;
//        UISound cancelBtnSound = cancelBtn.gameObject.AddComponent<UISound>();
//        cancelBtnSound.soundType = UISound.Type.Back;

        if(okBtn != null)
        {
            okBtn.onClick.AddListener(
                delegate
                {
                    OnClick((int)OK);
                });
        }
        yesBtn.onClick.AddListener(
            delegate
            {
                OnClick((int)YES);
            });
        noBtn.onClick.AddListener(
            delegate
            {
                OnClick((int)NO);
            });
        cancelBtn.onClick.AddListener(
            delegate
            {
                OnClick((int)CANCEL);
            });
    }

	public string okLabel
	{
		set
		{
			_okLabel = value;
            if ((flags & OK) != 0)
            { 
				yesBtnText.text = value;
            }
		}
		get
		{
			return _okLabel;
		}
	}

	public string yesLabel
	{
		set
		{
			_yesLabel = value;
            if ((flags & YES) != 0)
            {
                yesBtnText.text = value;
            }
		}
		get
		{
			return _yesLabel;
		}
	}

	public string noLabel
	{
		set
		{
			_noLabel = value;
            if ((flags & NO) != 0)
            {
				noBtnText.text = value;
            }
		}
		get
		{
			return _noLabel;
		}
	}

	public string cancelLabel
	{
		set
		{
			_cancelLabel = value;
            if ((flags & CANCEL) != 0)
            {
				cancelBtnText.text = value;
            }
		}
		get
		{
			return _cancelLabel;
		}
	}


	public virtual void OnClick(int detail)
	{
		if((flags & OK) != 0 && detail == YES)
			detail = (int)OK;

		AlertCloseEvent evt = new AlertCloseEvent();
		evt.detail = (uint)detail;
		evt.target = this;

		if(closeEvent != null)
		{
			closeEvent(evt);
		}
		PopUpManager.RemovePopUp(this); 
	}

    void OnDestroy()
    {
        yesBtn.onClick.RemoveAllListeners();
        noBtn.onClick.RemoveAllListeners();
        cancelBtn.onClick.RemoveAllListeners();
    }

	public delegate void AlertPanelCloseDelegate(AlertCloseEvent evt);


	public static AlertPanel Show(string title, string content, uint flags=0x4, AlertPanelCloseDelegate closeHandler=null)
	{
		AlertPanel alertPanel = (AlertPanel)PopUpManager.AddPopUp((GameObject)Resources.Load("Prefabs/UI/AlertPanel"), null, true, typeof(AlertPanel));

		alertPanel.flags = flags;
		alertPanel.closeEvent += closeHandler;

		alertPanel.contentText.text = content;
		if(title != null)
        	alertPanel.titleText.text = title;

		if((flags & OK) == 0 && (flags & YES) == 0)
		{
			GameObject.Destroy(alertPanel.yesBtn.gameObject);
		}
		else
		{
			if((flags & OK) != 0)
				alertPanel.yesBtnText.text = Language.GetStr("Public", "ok");
			else if((flags & YES) != 0)
				alertPanel.yesBtnText.text = Language.GetStr("Public", "yes");
		}


		if((flags & NO) == 0)
			GameObject.Destroy(alertPanel.noBtn.gameObject);
		else
			alertPanel.noBtnText.text = Language.GetStr("Public", "no");


		if((flags & CANCEL) == 0)
			GameObject.Destroy(alertPanel.cancelBtn.gameObject);
		else
			alertPanel.cancelBtnText.text = Language.GetStr("Public", "cancel");

		return alertPanel;
	}


	public static AlertPanel Show(string content, uint flags=0x4, AlertPanelCloseDelegate closeHandler=null)
	{
		return AlertPanel.Show (null, content, flags, closeHandler);
	}
}