/application/modules/gallery/gallery.php

<?php

use CMSFactory\assetManager;
use CMSFactory\Events;

if (!defined('BASEPATH')) {
    exit('No direct script access allowed');
}

/**
 * Image CMS
 *
 * Gallery module
 * Need Imagebox module
 * @property Gallery_m $gallery_m
 * @property Components comments
 * @property Gallery_install gallery_install
 */
class Gallery extends MY_Controller
{

    public $conf = [
                    'upload_url'    => 'uploads/gallery/',
                    'thumbs_folder' => '_thumbs',
                   ];

    private $settings = [];

    public function __construct() {
        parent::__construct();
        $lang = new MY_Lang();
        $lang->load('gallery');

        $this->load->module('core');
        $this->load->model('gallery_m');

        // Load gallery settings
        $this->settings = $this->gallery_m->load_settings();
        $this->load->helper('gallery');
    }

    public function autoload() {

    }

    /**
     * List categories and get albums from first category
     */
    public function index() {
        $this->core->set_meta_tags(lang('Gallery', 'gallery'));

        $categories = $this->gallery_m->get_categories($this->settings['order_by'], $this->settings['sort_order']);
        $albums = $this->gallery_m->get_albums($this->settings['order_by'], $this->settings['sort_order']);

        $data = [
                 'gallery_category' => $categories,
                 'total'            => $this->gallery_m->getTotalImages(),
                 'categories'       => $categories,
                ];

        // Get covers
        $data['albums'] = is_array($albums) ? $this->create_albums_covers($albums) : NULL;

        Events::create()->raiseEvent($data, 'gallery:load');
        assetManager::create()
            ->setData($data)
            ->registerStyle('style', FAlSE)
            ->render('index');
    }

    public function albums() {
        $this->core->set_meta_tags(lang('Gallery', 'gallery'));

        $categories = $this->gallery_m->get_categories($this->settings['order_by'], $this->settings['sort_order']);
        $albums = $this->gallery_m->get_albums($this->settings['order_by'], $this->settings['sort_order']);

        $data = [
                 'gallery_category' => $categories,
                 'total'            => $this->gallery_m->getTotalImages(),
                ];

        // Get covers
        $data['albums'] = is_array($albums) ? $this->create_albums_covers($albums) : NULL;

        assetManager::create()
            ->setData($data)
            ->registerStyle('style', FAlSE)
            ->render('albums');
    }

    /**
     * Display category albums
     * @param int $id
     */
    public function category($id = 0) {
        $this->core->set_meta_tags(lang('Gallery', 'gallery'));

        $category = $this->gallery_m->get_category($id);

        if ($category === FALSE) {
            redirect('gallery');
        } else {
            $albums = $this->gallery_m->get_albums($this->settings['order_by'], $this->settings['sort_order'], $category['id']);

            if ($albums !== FALSE) {
                $albums = $this->create_albums_covers($albums);
            }

            $data = [
                     'albums'           => $albums,
                     'current_category' => $category,
                     'gallery_category' => $this->gallery_m->get_categories($this->settings['order_by'], $this->settings['sort_order']),
                    ];

            Events::create()->raiseEvent($data, 'gallery:category');
            assetManager::create()
                ->setData($data)
                ->render('albums');
        }
    }

    /**
     * Display album images
     * @param int $id
     */
    public function album($id = 0) {
        if (preg_match('/[A-Z]/', $this->uri->uri_string())) {
            redirect(site_url(strtolower($this->uri->uri_string())), 'location', 301);
        }

        $album = $this->gallery_m->get_album($id);
        if ($this->uri->total_segments() > 5) {
            $params = $this->uri->uri_to_assoc(5);
        } else {
            $params = $this->uri->uri_to_assoc(4);
        }

        if ($album == FALSE) {
            $this->core->error_404();
        }

        if ($params['image'] > 0) {
            $n = 0;
            foreach ($album['images'] as $image) {
                if ($image['id'] == $params['image']) {
                    $prev_img = $image;

                    // Create prev/next links
                    $next = $album['images'][$n + 1];
                    $prev = $album['images'][$n - 1];

                    $current_pos = $n + 1;
                }
                $n++;
            }
        } else {
            // Display first image prev
            $prev_img = $album['images'][0];

            $next = $album['images'][1];
            $prev = NULL;
            $current_pos = 1;
        }

        if ($prev_img == NULL) {
            $this->core->error_404();
            exit;
        }

        $prev_img['url'] = $this->conf['upload_url'] . $album['id'] . '/' . $prev_img['file_name'] . '_prev' . $prev_img['file_ext'];

        $data = [
                 'album'            => $album,
                 'thumb_url'        => $this->conf['upload_url'] . $album['id'] . '/' . $this->conf['thumbs_folder'] . '/',
                 'album_link'       => 'gallery/album/' . $album['id'] . '/',
                 'album_url'        => $this->conf['upload_url'] . $album['id'] . '/',
                 'prev_img'         => $prev_img,
                 'next'             => $next,
                 'prev'             => $prev,
                 'current_pos'      => $current_pos,
                 'current_category' => $this->gallery_m->get_category($album['category_id']),
                 'gallery_category' => $this->gallery_m->get_categories($this->settings['order_by'], $this->settings['sort_order']),
                ];

        $this->gallery_m->increase_image_views($prev_img['id']);
        $this->core->set_meta_tags([$album['name']]);
        Events::create()->raiseEvent($data, 'gallery:album');

        assetManager::create()
            ->setData($data)
            // ->registerStyle('jquery.fancybox-1.3.4', FAlSE)
            ->registerStyle('style', FAlSE)
            // ->registerScript('jquery.fancybox-1.3.4.pack', TRUE)
            // ->registerScript('jquery.easing-1.3.pack', TRUE)
            // ->registerScript('jquery.mousewheel-3.0.4.pack', TRUE)
            ->render($album['tpl_file'] ?: 'album');
    }

    /**
     * @param int $id
     * @param int $page
     */
    public function thumbnails($id = 0, $page = 0) {
        if (preg_match('/[A-Z]/', $this->uri->uri_string())) {
            redirect(site_url(strtolower($this->uri->uri_string())), 'location', 301);
        }

        $album = $this->gallery_m->get_album($id, true, 15, $page * 15);

        if ($album == FALSE) {
            $this->core->error_404();
            exit;
        }
        $this->load->library('Pagination');
        $this->pagination = new \CI_Pagination();
        $paginationConfig['uri_segment'] = 4;
        $paginationConfig['base_url'] = site_url('gallery/thumbnails/' . $id);
        $paginationConfig['total_rows'] = ceil($album[count] / 15);
        $paginationConfig['last_link'] = ceil($album[count] / 15);
        $paginationConfig['per_page'] = 1;

        $paginationConfig['page_query_string'] = true;
        $paginationConfig['first_link'] = '1';
        $paginationConfig['num_links'] = 3;
        include_once "./templates/{$this->config->item('template')}/paginations.php";

        $this->pagination->initialize($paginationConfig);

        $data = [
                 'album'            => $album,
                 'thumb_url'        => $this->conf['upload_url'] . $album['id'] . '/' . $this->conf['thumbs_folder'] . '/',
                 'album_link'       => 'gallery/album/' . $album['id'] . '/',
                 'album_url'        => $this->conf['upload_url'] . $album['id'] . '/',
                 'current_category' => $this->gallery_m->get_category($album['category_id']),
                 'pagination'       => $this->pagination->create_links(),
                ];

        $this->core->set_meta_tags([$album['name']]);

        assetManager::create()
            ->setData($data)
            ->render('thumbnails');
    }

    public function post_comment() {
        $image_id = (int) $this->input->post('comment_item_id');

        $this->load->module('comments');
        $this->comments->module = 'gallery';

        if ($this->db->get_where('gallery_images', ['id' => $image_id])->num_rows() > 0) {
            $this->comments->add($image_id);
        } else {
            $this->core->error_404();
        }
    }

    /**
     * Create cover url to each album
     * @param array $albums
     * @return array
     */
    public function create_albums_covers($albums = []) {
        $cnt = count($albums);
        for ($i = 0; $i < $cnt; $i++) {
            $thumb_url = '/' . $this->conf['upload_url'] . $albums[$i]['id'] . '/' . $this->conf['thumbs_folder'] . '/';

            $albums[$i]['cover_url'] = $thumb_url . $albums[$i]['cover_name'] . $albums[$i]['cover_ext'];

            if ($albums[$i]['cover_name'] == NULL) {
                $image = $this->gallery_m->get_last_image($albums[$i]['id']);
                if ($image) {
                    $albums[$i]['cover_url'] = $thumb_url . $image['file_name'] . $image['file_ext'];
                } else {
                    $albums[$i]['cover_url'] = media_url('application/modules/gallery/assets/images/nophoto.jpg');
                }
            } else {
                $albums[$i]['cover_url'] = $thumb_url . $albums[$i]['cover_name'] . $albums[$i]['cover_ext'];
            }
        }
        return $albums;
    }

    // Install

    public function _install() {
        if ($this->dx_auth->is_admin() == FALSE) {
            exit;
        }
        $this->load->model('gallery_install');
        $this->gallery_install->make_install();

    }

    // Delete module

    public function _deinstall() {
        if ($this->dx_auth->is_admin() == FALSE) {
            exit;
        }
        $this->load->model('gallery_install');
        $this->gallery_install->deinstall();
    }

}

/* End of file gallery.php */