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There is a newer version: 2023.2.5
package shz.spring.model;

import shz.core.model.PageInfo;

import java.util.function.Function;

public class PageVo extends RequestVo {
    private Integer page;
    private Integer size;
    private Integer current;
    private O currentFirst;
    private O currentLast;
    private Integer pageNum;
    private Integer pageSize;

    public Integer getPage() {
        return page;
    }

    public void setPage(Integer page) {
        this.page = page;
    }

    public Integer getSize() {
        return size;
    }

    public void setSize(Integer size) {
        this.size = size;
    }

    public Integer getCurrent() {
        return current;
    }

    public void setCurrent(Integer current) {
        this.current = current;
    }

    public O getCurrentFirst() {
        return currentFirst;
    }

    public void setCurrentFirst(O currentFirst) {
        this.currentFirst = currentFirst;
    }

    public O getCurrentLast() {
        return currentLast;
    }

    public void setCurrentLast(O currentLast) {
        this.currentLast = currentLast;
    }

    public Integer getPageNum() {
        return pageNum;
    }

    public void setPageNum(Integer pageNum) {
        this.pageNum = pageNum;
    }

    public Integer getPageSize() {
        return pageSize;
    }

    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }

    @Override
    public String toString() {
        return "PageVo{" +
                "page=" + page +
                ", size=" + size +
                ", current=" + current +
                ", currentFirst=" + currentFirst +
                ", currentLast=" + currentLast +
                ", pageNum=" + pageNum +
                ", pageSize=" + pageSize +
                "} " + super.toString();
    }

    public  PageInfo simple() {
        PageInfo pageInfo = PageInfo.of(page != null ? page : pageNum != null ? pageNum : 1, size != null ? size : pageSize != null ? pageSize : 10);
        pageInfo.setCurrent(current == null ? 0 : current);
        return pageInfo;
    }

    public  PageInfo map(Function mapper) {
        PageInfo pageInfo = simple();
        if (currentFirst != null) pageInfo.setCurrentFirst(mapper.apply(currentFirst));
        if (currentLast != null) pageInfo.setCurrentLast(mapper.apply(currentLast));
        return pageInfo;
    }

    @SuppressWarnings("unchecked")
    public  PageInfo map() {
        return map(o -> (T) o);
    }

    public static  PageVo max(I data) {
        PageVo pageVo = new PageVo<>();
        pageVo.setSize(Integer.MAX_VALUE);
        pageVo.setData(data);
        return pageVo;
    }
}