Paginazionelol

<?php

class Pagination
{
    private $last;
    private $next;
    private $prev;
    private $first;
    private $items;
    private $current;

    private $options = array(
        'separator' => '...',
        'sideItemsCount' => 1,
        'edgeItemsCount' => 1,
        'activeClass' => 'active',
        'paginationClass' => '',
        'showNextPrevButtons' => false,
        'renderOnePage' => false
    );

    public function __construct(array $options = array())
    {
        $this->setOptions($options);
    }

    public function __toString()
    {
        return '';
    }

    public function last()
    {
        return $this->last;
    }

    public function next()
    {
        return $this->next;
    }

    public function prev()
    {
        return $this->prev;
    }

    public function first()
    {
        return $this->first;
    }

    public function items()
    {
        return $this->items;
    }

    public function current()
    {
        return $this->current;
    }

    public function paginate($current, $pages)
    {
        $this->current = $current;
        $this->pages = $pages;
        $this->last = $pages;

        $this->first = 1;
        $this->prev = ($this->current > 1) ? $this->current - 1 : null;
        $this->next = ($this->current) < $this->pages ? $this->current + 1 : null;

        $this->setItems();

        return $this;
    }

    public function setOption(string $option, $value)
    {
        $this->options[$option] = $value;

        return $this;
    }

    public function setOptions(array $options)
    {
        foreach ($this->options as $option => $value) {
            $this->options[$option] = isset($options[$option]) ? $options[$option] : $this->options[$option];
        }

        return $this;
    }

    private function visibleEdgeItemsCount()
    {
        $separators = $this->options['separator'] ? 2 : 1;

        return 2 * $this->options['sideItemsCount'] + $this->options['edgeItemsCount'] + $separators;
    }

    private function edgeItems()
    {
        $edgeItems = array();

        for ($i = 1; $i <= $this->options['edgeItemsCount']; $i++) {
            $edgeItems[] = $i;
        }

        for ($i = 0; $i < $this->options['edgeItemsCount']; $i++) {
            $edgeItems[] = $this->last - $i;
        }

        return $edgeItems;
    }

    private function sideItems()
    {
        $sideItems = array();

        // when current page is in start edge
        if ($this->current + $this->options['sideItemsCount'] <= $this->visibleEdgeItemsCount()) {
            $start = $this->first;
            $end = $this->visibleEdgeItemsCount();
        }

        // when current page is in end edge
        elseif ($this->current - $this->options['sideItemsCount'] > $this->last - $this->visibleEdgeItemsCount()) {
            $start = $this->last - $this->visibleEdgeItemsCount() + 1;
            $end = $this->last;
        }

        else {
            $start = $this->current - $this->options['sideItemsCount'];
            $end = $this->current + $this->options['sideItemsCount'];
        }

        for ($i = $start; $i <= $end; $i++) {
            if ($i > 0 && $i <= $this->last) {
                $sideItems[] = $i;
            }
        }

        return $sideItems;
    }

    private function setItems()
    {
        $visiblePages = array_unique(array_merge($this->edgeItems(), $this->sideItems()));

        $this->items = array();

        for ($page = 1; $page <= $this->pages; $page++) {

            if (in_array($page, $visiblePages)) {
                $this->items[] = $page;
            }

            elseif ($page == ($this->first + $this->options['edgeItemsCount'])) {
                if ($this->options['separator']) {
                    $this->items[] = $this->options['separator'];
                }
            }

            elseif ($page == ($this->last - $this->options['edgeItemsCount'])) {
                if ($this->options['separator']) {
                    $this->items[] = $this->options['separator'];
                }
            }

        }

        return $this->items;
    }

    public function checkIfPaginationIsNeeded()
    {
        return $this->options['renderOnePage'] || $this->last > 1;
    }

    public function fresh()
    {
        $this->setItems();

        return $this;
    }

    public function render($echo = false, $prevText = 'prev', $nextText = 'next')
    {
        if (!$this->checkIfPaginationIsNeeded()) {
            return false;
        }

        $content = '';

        if ($this->options['showNextPrevButtons'] && $this->prev) {
            $content .= '<li class="pagination-prev-page"><a class="pagination-prev-link" href="?page=' . $this->prev . '">'. $prevText .'</a></li>';
        }

        foreach ($this->items as $item) {

            if ($item == $this->options['separator']) {

                $content .= '<li class="pagination-list-item pagination-separator-item"><span class="pagination-separator">' . $item . '</span></li>';

            } else {

                $activeClass = ($this->current == $item) ? ' ' . $this->options['activeClass'] : '';
                $link = '<a class="pagination-page-link'. $activeClass .'" href="?page=' . $item . '">' . $item . "</a>";

                $content .= '<li class="pagination-list-item">' . $link .'</li>';

            }

        }

        if ($this->options['showNextPrevButtons'] && $this->prev) {
            $content .= '<li class="pagination-next-page"><a class="pagination-next-link" href="?page=' . $this->next . '">' . $nextText . '</a></li>';
        }

        // $html = '<ul class="' . $this->options['paginationClass'] . '">' . $content . '</ul>';
        $html = $content;

        if ($echo) {
            echo $html;
        }

        return $html;
    }
}