package com.social.media.domain.shared;

import java.util.List;

public class PageResponse<T> {
    
    private List<T> content;
    private long totalElements;
    private int totalPages;
    private int size;
    private int number;
    private boolean first;
    private boolean last;
    
    public PageResponse() {}
    
    public PageResponse(List<T> content, long totalElements, int totalPages, int size, int number, boolean first, boolean last) {
        this.content = content;
        this.totalElements = totalElements;
        this.totalPages = totalPages;
        this.size = size;
        this.number = number;
        this.first = first;
        this.last = last;
    }
    
    public static <T> PageResponse<T> of(List<T> content, long totalElements, int page, int size) {
        int totalPages = (int) Math.ceil((double) totalElements / size);
        return new PageResponse<>(
            content,
            totalElements,
            totalPages,
            size,
            page,
            page == 0,
            page >= totalPages - 1
        );
    }
    
    // Getters e Setters
    public List<T> getContent() { return content; }
    public void setContent(List<T> content) { this.content = content; }
    
    public long getTotalElements() { return totalElements; }
    public void setTotalElements(long totalElements) { this.totalElements = totalElements; }
    
    public int getTotalPages() { return totalPages; }
    public void setTotalPages(int totalPages) { this.totalPages = totalPages; }
    
    public int getSize() { return size; }
    public void setSize(int size) { this.size = size; }
    
    public int getNumber() { return number; }
    public void setNumber(int number) { this.number = number; }
    
    public boolean isFirst() { return first; }
    public void setFirst(boolean first) { this.first = first; }
    
    public boolean isLast() { return last; }
    public void setLast(boolean last) { this.last = last; }
}