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package com.haoxuer.discover.data.core;

import java.util.List;

/**
 * 列表分页。包含list属性。
 */
@SuppressWarnings("serial")
public class Pagination extends SimplePage implements java.io.Serializable,
    Paginable {

  public Pagination() {
  }

  /**
   * 构造器
   *
   * @param pageNo     页码
   * @param pageSize   每页几条数据
   * @param totalCount 总共几条数据
   */
  public Pagination(int pageNo, int pageSize, int totalCount) {
    super(pageNo, pageSize, totalCount);
  }

  /**
   * 构造器
   *
   * @param pageNo     页码
   * @param pageSize   每页几条数据
   * @param totalCount 总共几条数据
   * @param list       分页内容
   */
  public Pagination(int pageNo, int pageSize, int totalCount, List list) {
    super(pageNo, pageSize, totalCount);
    this.list = list;
  }

  /**
   * 第一条数据位置
   *
   * @return
   */
  public int getFirstResult() {
    return (pageNo - 1) * pageSize;
  }

  /**
   * 第一条数据位置
   *
   * @return
   */
  public int getFirstNo() {
    int result = 1;
    result = pageNo - size;

    int t = getEndNo() - result;
    int num = size * 2;
    if (t < num) {
      result = result - (num - t);
    }
    if (result <= 0) {
      result = 1;
    }
    return result;
  }

  int size = 2;

  /**
   * 第一条数据位置
   *
   * @return
   */
  public int getEndNo() {
    int result = 1;
    result = getPageNo() + size;

    if (getPageNo() <= size) {
      result = result + size - getPageNo();
      result++;
    } else {
    }


    if (result > getTotalPage()) {
      result = getTotalPage();
    }
    return result;
  }

  /**
   * 当前页的数据
   */
  private List list;

  /**
   * 获得分页内容
   *
   * @return
   */
  public List getList() {
    return list;
  }

  /**
   * 设置分页内容
   *
   * @param list
   */
  @SuppressWarnings("unchecked")
  public void setList(List list) {
    this.list = list;
  }

  @Override
  public String toString() {
    return "Pagination [totalCount=" + totalCount + ", pageSize="
        + pageSize + ", pageNo=" + pageNo + "]";
  }

  public static void main(String[] args) {

    Pagination p = new Pagination(9, 10, 100);


    System.out.println(p.getFirstNo());
    System.out.println(p.getEndNo());
    System.out.println(p.getPageNo());
    System.out.println(p.getNextPage());
    System.out.println(p.getPrePage());
    System.out.println(p.getTotalPage());


  }
}