package com.wondertek.util;

import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.Data;
import lombok.ToString;

import java.util.ArrayList;
import java.util.List;

/**
 * 分页对象
 *
 * @param <T>
 */
@Data
@ToString
@JsonInclude(JsonInclude.Include.NON_NULL)
public class PageDTO<T> {

	/**
     * 总的页数
     */
    private Integer totalPage;
    /**
     * 总记录数
     */
    private Long totalCount;
    /**
     * 分页数据
     */
    private List<T> list;


    public PageDTO() {}


	/**
	 *
	 * @param totalPage 总页数
	 * @param totalCount 总数
	 * @param list
	 */
	public <K> PageDTO(Integer totalPage, Long totalCount, List<T> list) {
		this.totalPage = totalPage;
		this.totalCount = totalCount;
		this.list = list;
	}

	public static <T> PageDTO<T> ok(Integer totalPage, Long totalCount, List<T> list){
	    return new PageDTO<>(totalPage, totalCount, list);
	}

	public static <T> PageDTO<T> empty() {
		return new PageDTO<>(0, 0L, new ArrayList<>());
	}

}