bip-pages.php

<?php
namespace BipPages;
/**
 * BIP Pages
 *
 * @package     bip-pages
 * @author      Łukasz Garczewski
 * @copyright   2019-2020 Łukasz Garczewski
 * @license     GPL-3.0-or-later
 *
 * @wordpress-plugin
 * Plugin Name: BIP Pages
 * Plugin URI: https://klucznicy.org.pl/oprogramowanie/bip-pages/
 * Description: A plugin adding BIP (Biuletyn Informacji Publicznej) functionality to WordPress
 * Version: 1.2.1
 * Author: Stowarzyszenie Klucznicy
 * Author URI: https://klucznicy.org.pl/
 * Text Domain: bip-pages
 * Domain Path: /languages
 * License: GPL v3 or later
 * License URI: https://www.gnu.org/licenses/gpl-3.0.txt
 */

const CURRENT_VERSION = '1.2.1';

function plugin_init() {
  include_submodules();

  include( 'bip-pages-update.php' );
}
add_action('plugins_loaded', __NAMESPACE__ . '\plugin_init');

function include_submodules() {
  include( 'bip-pages-main-page.php' );
  include( 'bip-pages-settings.php' );
  include( 'bip-pages-styling.php' );
  include( 'bip-logo-widget.php' );
  include( 'bip-pages-meta-boxes.php' );
  include( 'bip-pages-activation.php' );
  include( 'blocks/bip-blocks.php' );
}

register_activation_hook( __FILE__, __NAMESPACE__ . '\activate' );
register_deactivation_hook( __FILE__, __NAMESPACE__ . '\deactivate' );

function activate() {
  add_option('Activated_Plugin','bip-pages'); // deleted later in post_activation_flow

  add_option( 'bip-pages-edit-access-role', 'contributor' );
  add_option( 'bip-pages-publish-access-role', 'editor' );
  add_option( 'bip-pages-delete-access-role', 'editor' );

  include_submodules();

  create_instructions_page();
  create_main_page(); // includes link to instructions page so needs to go 2nd
}

function deactivate() {
  include( 'bip-pages-deactivation.php' );

  set_transient( 'bip-pages-deactivation-msg', true, 5 );

  remove_widgets();
  convert_page_types();
}

add_action( 'wp_enqueue_scripts', __NAMESPACE__ . '\register_css');
add_action( 'admin_enqueue_scripts', __NAMESPACE__ . '\register_css' );
function register_css() {
  wp_enqueue_style(
    'bip-pages',
    plugin_dir_url( __FILE__ ) . 'css/style.css',
    array(),
    CURRENT_VERSION
  );
}

add_action( 'init', __NAMESPACE__ . '\load_textdomain' );
function load_textdomain() {
  load_plugin_textdomain(
    'bip-pages',
    false,
    dirname( plugin_basename( __FILE__ ) ) . '/languages'
  );
}

/** BIP page type registration **/
function register_bip_page_type() {
    $labels = array(
        'name'                  => _x( 'BIP pages', 'Post type general name', 'bip-pages' ),
        'singular_name'         => _x( 'BIP page', 'Post type singular name', 'bip-pages' ),
        'menu_name'             => _x( 'BIP Pages', 'Admin Menu text', 'bip-pages' ),
        'name_admin_bar'        => _x( 'BIP page', 'Add New on Toolbar', 'bip-pages' ),
        'add_new'               => __( 'Add New', 'bip-pages' ),
        'add_new_item'          => __( 'Add New BIP page', 'bip-pages' ),
        'new_item'              => __( 'New BIP page', 'bip-pages' ),
        'edit_item'             => __( 'Edit BIP page', 'bip-pages' ),
        'view_item'             => __( 'View BIP page', 'bip-pages' ),
        'all_items'             => __( 'All BIP pages', 'bip-pages' ),
        'search_items'          => __( 'Search BIP pages', 'bip-pages' ),
        'parent_item_colon'     => __( 'Parent BIP pages:', 'bip-pages' ),
        'not_found'             => __( 'No BIP pages found.', 'bip-pages' ),
        'not_found_in_trash'    => __( 'No BIP pages found in Trash.', 'bip-pages' ),
    );

    $args = array(
        'labels'             => $labels,
        'public'             => true,
        'publicly_queryable' => true,
        'show_ui'            => true,
        'show_in_menu'       => true,
        'capability_type'    => 'post',
        'has_archive'        => true,
        'hierarchical'       => true,
        'menu_icon'          => plugin_dir_url( __FILE__ ) . 'assets/bip-settings-icon.png',
        'menu_position'      => 21,
        'supports'           => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'revisions' ),
        'delete_with_user'   => false,
        'show_in_rest'       => true
    );

    register_post_type( 'bip', $args );
}
add_action( 'init', __NAMESPACE__ . '\register_bip_page_type' );

function change_bip_template( $single_template ) {
  $post = get_post();

	if ( 'bip' == $post->post_type ) {
    $page_template = get_template_directory() . '/page.php';
    if ( file_exists( $page_template ) ) {
		  $single_template = $page_template;
    }
	}

	return $single_template;
}
add_filter('single_template', __NAMESPACE__ . '\change_bip_template');

function add_footer( $content = '' ) {
  $post = get_post();

  if ( !is_single() || $post->post_type != 'bip' ) {
    return $content;
  }

  $custom = get_post_custom( $post->ID );

  if ( !empty( $custom[ "_bip_prepared_by" ] ) && !empty( $custom[ "_bip_prepared_by" ][ 0 ] ) ) {
    $prepared_by = $custom[ "_bip_prepared_by" ][ 0 ];
  } else {
    $prepared_by = get_the_author_link();
  }

  $creation_time = get_the_date( 'c' );
  $last_mod_time = get_the_modified_date( 'c' );

  $creation_tag = "<time datetime='{$creation_time}'>";
  $creation_tag .= sprintf(
    /* translators: %1$s is replaced with date, %2$s is replaced with time */
    esc_html( __('%1$s at %2$s', 'bip-pages') ),
    get_the_date(),
    get_the_time()
  );
  $creation_tag .= '</time>';

  $last_modification_tag = "<time datetime='{$last_mod_time}'>";
  $last_modification_tag .= sprintf(
    esc_html( __('%1$s at %2$s', 'bip-pages') ),
    get_the_modified_date(),
    get_the_modified_time()
  );
  $last_modification_tag .= '</time>';

  ob_start();
  include( __DIR__ . '/templates/bip-page-footer-template.php' );
  $content .= ob_get_clean();

  return $content;
}
add_filter('the_content', __NAMESPACE__ . '\add_footer' );

function redirect_to_bip_main_page() {
  if ( is_post_type_archive( 'bip' ) && !is_search() ) {
    wp_redirect( get_permalink( get_post( get_bip_main_page() ) ), '301' );
    exit;
  }
}
add_action( 'template_redirect', __NAMESPACE__ . '\redirect_to_bip_main_page' );

function enqueue_editor_notices() {
  global $post;

  // only proceed if user is editing a BIP page
  if ( get_post_type( $post ) != 'bip' ) {
    return;
  }

  wp_enqueue_script(
        'bip-editor-notices',
        plugin_dir_url( __FILE__ ) . '/js/editor_notices.js',
        array( 'wp-notices', 'wp-i18n', 'wp-editor', 'jquery' ),
        CURRENT_VERSION
    );

    $vars = array(
      'bip_main_page' => get_bip_main_page(),
      'bip_current_id' => $post->ID
    );

    wp_localize_script( 'bip-editor-notices', 'bip_pages_vars', $vars );

  wp_set_script_translations( 'bip-editor-notices', 'bip-pages' );
}
add_action( 'enqueue_block_editor_assets', __NAMESPACE__ . '\enqueue_editor_notices' );

/** main page **/
function get_bip_main_page() {
  return get_option( 'bip_pages_main_page_id' );
}

function add_bip_main_page_to_main_page_dropdown( $output, $parsed_args, $pages ){
    if ( 'page_on_front' !== $parsed_args['name'] ) {
      return $output;
    }

    $bip_pages = get_posts( array(
      'post_type' => 'bip',
      'post__in' => array( get_bip_main_page() )
    ));

    if ( !empty( $bip_pages ) ) {
      // first remove the closing tag, i.e. </select>\n
      $new_output = substr( $output, 0, -10 );

      // then add additional option
      $new_output .= walk_page_dropdown_tree( $bip_pages, $parsed_args['depth'], $parsed_args );

      // then re-add closing tag
      $new_output .= substr( $output, -10 );
    }

    return $new_output;
}
add_filter( 'wp_dropdown_pages', __NAMESPACE__ . '\add_bip_main_page_to_main_page_dropdown', 10, 3 );

/** instruction page **/
function get_bip_instruction_page() {
  return get_option( 'bip_pages_instruction_id' );
}

function set_bip_instruction_page( $id ) {
  return update_option( 'bip_pages_instruction_id', $id );
}