using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using AX.NetworkSystem;
using AX.MessageSystem;

public struct PaperPageRequestPair
{
    public int currentPage;
    public int numberEachPage;
    public int Pattern;

}
public class PaperPageControl : MonoBehaviour {

    // Use this for initialization
    public int pageCount = 60;
    public int currentPage = 1;
    public int numberEachPage = 10;
    public GameObject itemPrefab;
    protected int startPage = 1;
    protected int endPage;
    public virtual void Start()
    {      
        getPageDataRequest();
        MessageDispatcher.AddListener("PAPER_PAGE_REFRESH", pageChanged);
    }
    public virtual void OnDestroy()
    {      
        MessageDispatcher.RemoveListener("PAPER_PAGE_REFRESH", pageChanged);
    }
    // Update is called once per frame
    void Update()
    {

    }
    public void ResetPageData()
    {
        currentPage = 1;
        getPageDataRequest();
    }
    //请求服务端考试数据
    public virtual void getPageDataRequest()
    {
        NetworkManager.Default.SendRequestAsync("PAPER_PAGE_REQUEST", new PaperPageRequestPair { currentPage = currentPage, numberEachPage = numberEachPage,Pattern=(int)ExamInfoHelpClass.applicationMode });
    }
    //刷新页码
    protected void changePagePanel(bool flag)
    {
        foreach (Transform child in transform)
        {
            Destroy(child.gameObject);
        }
        if (flag)
        {
            startPage = currentPage;
            endPage = currentPage + 7;
            if (endPage > pageCount)
            {
                endPage = pageCount;
            }
        }
        else
        {
            endPage = currentPage;
            startPage = currentPage - 7;
        }
        for (int startPage = this.startPage; startPage <= endPage; startPage++)
        {
            GameObject item = Instantiate(itemPrefab) as GameObject;
            item.transform.parent = transform;
            //item.transform.localScale = new Vector3(1, 1, 1);
            item.name = "Item";
            item.GetComponent<Toggle>().group = GetComponent<ToggleGroup>();
            item.GetComponent<PaperPageMessage>().setPage(startPage);
            if (startPage == currentPage)
            {
                item.GetComponent<Toggle>().isOn = true;
            }
        }
    }
    //换页请求返回后刷新页码
    protected void pageChanged(IMessage message)
    {
        PagingReplyInfo<ExaminationPaperObject> pair = (PagingReplyInfo<ExaminationPaperObject>)(message.Data);
        currentPage = pair.CurrentPage;
        numberEachPage = pair.NumberPerPage;
        pageCount = pair.PageCount;      
        if (currentPage < startPage)
        {
            changePagePanel(false);//向前刷新
        }
        else if (currentPage > endPage || currentPage == 1)
        {
            changePagePanel(true);//向后刷新
        }
        else                      //只改变选中页码
        {
            foreach (Transform child in transform)
            {
                if (child.GetComponent<PaperPageMessage>().page == currentPage)
                {
                    child.GetComponent<Toggle>().isOn = true;
                }
            }
        }
    }
    public void selectPage(int page)
    {
        currentPage = page;
        getPageDataRequest();
    }
    public void upPage()
    {
        if (currentPage == 1)
            return;
        currentPage--;
        getPageDataRequest();
    }
    public void downPage()
    {
        if (currentPage == pageCount || pageCount==0)
            return;
        currentPage++;
        getPageDataRequest();
    }
}