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

public class PagesController : MonoBehaviour
{
    public static PagesController Instance;
    public Button pre;
    public Button next;
    public GameObject prefab;
    public ToggleGroup togGroup;
    private int pageCount = 1; //一共的页数
    private int pageIndex = 1; //当前显示页数    
    private QueryOptions queryOptions = new QueryOptions();

    private void Awake()
    {
        Instance = this;
        //pre.onClick.AddListener(PrePage);//单机版注释
        //next.onClick.AddListener(NextPage);//单机版注释
        pre.gameObject.SetActive(false);//非单机版解开注释
        next.gameObject.SetActive(false);//非单机版解开注释
    }
    // Use this for initialization
    void Start()
    {
        ApplyForInitPage();
    }
    public void ApplyForInitPage()
    {
        pageIndex = 1;
        //1、向服务端申请获取一共的页数，返回调用GetPageCount()
        queryOptions.PageNumber = 1; //申请第一页数据
        queryOptions.PageSize = 5; //每页显示5条
        //NetworkManager.Default.SendAsync("GET_DISASTER_INFOS_REQUEST", queryOptions); //联机版
        DisasterList.Instance.ShowIndexDisasters(DisasterInfosManager.Instance.GetDisasterInfos()); //单机版，获取本地灾情列表
    }
    public void ApplyForPage(int number)
    {
        pageIndex = number;
        queryOptions.PageNumber = number; //申请第一页数据
        queryOptions.PageSize = 5; //每页显示5条
        //NetworkManager.Default.SendAsync("GET_DISASTER_INFOS_REQUEST", queryOptions);//单机版注释
        DisasterList.Instance.ShowIndexDisasters(DisasterInfosManager.Instance.GetDisasterInfos()); //单机版，获取本地灾情列表
    }
    public void GetPageCount(int count)
    {
        pageCount = count;
        for (int j = 0; j < transform.childCount; j++)
        {
            Destroy(transform.GetChild(j).gameObject);
        }
        //生成页码
        InstantiatePageIndex();
        CheckPreNextButton();
    }
    /// <summary>
    /// 生成页码
    /// </summary>
    /// <param name="count"></param>
    private void InstantiatePageIndex()
    {
        if (pageCount < 10)
        {
            for (int i = 0; i < pageCount; i++)
            {
                GameObject indexItem = Instantiate(prefab, transform);
                indexItem.GetComponent<PageIndex>().Index = i + 1;
                if (i + 1 == pageIndex)
                {
                    indexItem.GetComponent<PageIndex>().OnThisPage();
                }
            }
        }
        else if (pageIndex - 4 > 1 && pageIndex + 4 < pageCount)
        {
            for (int j = pageIndex - 4; j <= pageIndex + 4; j++)
            {
                GameObject indexItem = Instantiate(prefab, transform);
                indexItem.GetComponent<PageIndex>().Index = j;
                if (j == pageIndex)
                {
                    indexItem.GetComponent<PageIndex>().OnThisPage();
                }
            }
        }
        else if (pageIndex - 4 > 1 && pageIndex + 4 >= pageCount)
        {
            for (int k = pageCount - 8; k <= pageCount; k++)
            {
                GameObject indexItem = Instantiate(prefab, transform);
                indexItem.GetComponent<PageIndex>().Index = k;
                if (k == pageIndex)
                {
                    indexItem.GetComponent<PageIndex>().OnThisPage();
                }
            }
        }
        else //if (pageIndex < 6 && pageCount>9) 
        {
            for (int l = 1; l < 10; l++)
            {
                GameObject indexItem = Instantiate(prefab, transform);
                indexItem.GetComponent<PageIndex>().Index = l;
                if (l == pageIndex)
                {
                    indexItem.GetComponent<PageIndex>().OnThisPage();
                }
            }
        }
    }
    private void CheckPreNextButton()
    {
        if (pageIndex == 1)
        {
            pre.interactable = false;
            if (pageCount == 1)
            {
                next.interactable = false;
            }
            else
            {
                next.interactable = true;
            }
        }
        else if (pageIndex == pageCount)
        {
            next.interactable = false;
            if (pageCount > 1)
            {
                pre.interactable = true;
            }
            else
            {
                pre.interactable = false;
            }
        }
        else
        {
            pre.interactable = true;
            next.interactable = true;
        }
    }
    private void PrePage()
    {
        pageIndex -= 1;
        //如果页码是第一页，禁用“上一页”按钮
        if (pageIndex == 1)
        {
            pre.interactable = false;
        }
        //如果页码是倒数第二页，恢复“下一页”按钮
        else if (pageIndex == pageCount - 1)
        {
            next.interactable = true;
        }
        //向服务端申请第pageIndex页数据
        ApplyForPage(pageIndex);
    }
    private void NextPage()
    {
        pageIndex += 1;
        if (pageIndex == pageCount)
        {
            next.interactable = false;
        }
        else if (pageIndex == 2)
        {
            pre.interactable = true;
        }
        //向服务端申请第pageIndex页数据
        ApplyForPage(pageIndex);
    }
}