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

public class FriendFindView : View
{
	public Text findLabel;
	public InputField inputField;
	public Text findBtnLabel;
	public Text findTipTxt;

	public Transform container;
	public FriendFindItem itemPrefab;

	void Awake()
	{
		findLabel.text = Language.GetStr ("ChatPanel", "findLabel");
		findBtnLabel.text = Language.GetStr ("ChatPanel", "findBtnLabel");
		findTipTxt.text = Language.GetStr ("ChatPanel", "findTip");

		inputField.onValidateInput += StringUtil.InputValidateHandler;

		OnFindResult (null);
	}

	protected override void OnDestroy ()
	{
		base.OnDestroy ();
		ChatManager.GetInstance ().FindFriendResult.RemoveListener (OnFindResult);
		inputField.onValidateInput -= StringUtil.InputValidateHandler;
	}

	public void FindInputChanged()
	{
		inputField.text = StringUtil.LimitInput (inputField.text, Config.MAX_USER_NAME_LENGTH);
	}

	public void Find()
	{
		if (!StringUtil.Empty (inputField.text)) {
			ChatManager.GetInstance ().FindFriendResult.AddListener (OnFindResult);
			ChatManager.GetInstance ().FindFriend (inputField.text);
		}
	}

	private void OnFindResult(List<UserData> list)
	{
		ChatManager.GetInstance ().FindFriendResult.RemoveListener (OnFindResult);

		int index = 0;
		if(list != null)
		{
			for(int i=0; i<list.Count; i++)
			{
				FriendFindItem item = null;
				if (i < container.childCount) {
					item = container.GetChild (i).GetComponent<FriendFindItem> ();
				} else {
					item = Instantiate<GameObject> (itemPrefab.gameObject).GetComponent<FriendFindItem> ();
					PopUpManager.AddToMainCanvas (item.gameObject, container);
				}
				item.gameObject.SetActive (true);
				item.SetData (list [i]);
				index++;
			}
		}

		for(int i=index; i<container.childCount; i++)
		{
			FriendFindItem item = container.GetChild(i).GetComponent<FriendFindItem>();
			item.gameObject.SetActive (false);
		}
	}
}