<?php
/**
 * Plugin Name: Envira Gallery
 * Plugin URI:  http://enviragallery.com
 * Description: Envira Gallery is the best responsive WordPress gallery plugin. This is the Pro version.
 * Author:      Envira Gallery Team
 * Author URI:  http://enviragallery.com
 * Version:     1.9.4.1
 * Text Domain: envira-gallery
 * Domain Path: languages
 *
 * Envira Gallery is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * any later version.
 *
 * Envira Gallery is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Envira Gallery. If not, see <http://www.gnu.org/licenses/>.
 *
 * @package Envira
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

update_option( 'envira_gallery', [
	'key'  => 'license-key',
	'type' => 'pro'
] );

// If the user does not have a sufficient version of PHP, exit.
if ( version_compare( PHP_VERSION, '5.6.0', '<' ) ) {
	/* translators: %s: admin url */
	wp_die( sprintf( esc_html__( 'Envira Gallery requires PHP 5.6 or higher. You\'re still on PHP %s. Please contact your web host for more information on how to upgrade your PHP version.', 'Envira Gallery' ), phpversion() ) ); // @codingStandardsIgnoreLine

}

use Envira\Admin\Admin_Container as Admin;
use Envira\Frontend\Frontend_Container as Frontend;
use Envira\Utils\Updater as Updater;
use Envira\Admin\Notices as Notices;
use Envira\Compress\Container as Compression_Container;

// Register the installation/uninstall hooks.
register_activation_hook( __FILE__, 'Envira_Gallery::activate' );
register_deactivation_hook( __FILE__, 'Envira_Gallery::deactivate' );
register_uninstall_hook( __FILE__, 'Envira_Gallery::uninstall' );

if ( ! class_exists( 'Envira_Gallery' ) ) :

	/**
	 * Main plugin class.
	 *
	 * @since 1.7.0
	 *
	 * @package Envira_Gallery
	 * @author  Envira Team
	 */
	final class Envira_Gallery {

		/**
		 * Holds the class object.
		 *
		 * @since 1.7.0
		 *
		 * @var object
		 */
		public static $instance = null;

		/**
		 * Plugin version, used for cache-busting of style and script file references.
		 *
		 * @since 1.7.0
		 *
		 * @var string
		 */

		public $version = '1.9.4.1';

		/**
		 * The name of the plugin.
		 *
		 * @since 1.7.0
		 *
		 * @var string
		 */
		public $plugin_name = 'Envira Gallery';

		/**
		 * Unique plugin slug identifier.
		 *
		 * @since 1.7.0
		 *
		 * @var string
		 */
		public $plugin_slug = 'envira-gallery';

		/**
		 * Plugin file.
		 *
		 * @since 1.7.0
		 *
		 * @var string
		 */
		public $file = __FILE__;

		/**
		 * Primary class constructor.
		 *
		 * @since 1.7.0
		 */
		public function __construct() {

			include_once ABSPATH . 'wp-admin/includes/plugin.php';

			if ( is_plugin_active( 'envira-albums/envira-albums.php' ) ) {

				$this->define( 'ENVIRA_STANDALONE_PLUGIN_NAME', 'Envira Gallery - Standalone Integrated' );

			}

			// Fire a hook before the class is setup.
			do_action( 'envira_gallery_pre_init' );

			// Load the plugin textdomain.
			add_action( 'plugins_loaded', array( $this, 'load_plugin_textdomain' ) );

			// Load the plugin.
			add_action( 'init', array( $this, 'init' ), 0 );

		}

		/**
		 * Setup enviromental constants for Envira.
		 *
		 * @since 1.7.0
		 *
		 * @access public
		 * @return void
		 */
		public function setup_constants() {

			$this->define( 'ENVIRA_VERSION', $this->version );
			$this->define( 'ENVIRA_SLUG', $this->plugin_slug );
			$this->define( 'ENVIRA_FILE', $this->file );
			$this->define( 'ENVIRA_DIR', plugin_dir_path( __FILE__ ) );
			$this->define( 'ENVIRA_URL', plugin_dir_url( __FILE__ ) );

		}

		/**
		 * Loads the plugin textdomain for translation.
		 *
		 * @since 1.7.0
		 */
		public function load_plugin_textdomain() {

			load_plugin_textdomain( $this->plugin_slug, false, dirname( plugin_basename( ENVIRA_FILE ) ) . '/languages/' );

		}

		/**
		 * Loads the plugin into WordPress.
		 *
		 * @since 1.7.0
		 */
		public function init() {

			// Lets check the install.
			$can_run = $this->check_installation();

			// If we cant run lets bail.
			if ( false === $can_run ) {

				return;

			}

			// Check if we need to run a update routine.
			$this->maybe_run_update();

			// Load the legacy fallbacks.
			$this->load_legacy();

			// Kick off the frontend.
			$this->public = new Frontend();

			// Load admin only components.
			if ( is_admin() ) {

				$this->require_admin();

				// Kick off the Admin.
				$this->admin       = new Admin();
				$this->compression = new Compression_Container();
				$this->require_updater();

			}

			// Run hook once Envira has been initialized.
			do_action( 'envira_gallery_init' );

			// Add hook for when Envira has loaded.
			do_action( 'envira_gallery_loaded' );

			if ( is_admin() ) {
				// Retrieve the license key. If it is not set, return early.
				$key = $this->get_license_key();
				if ( ! $key ) {
					return;
				}

				// If there are any errors with the key itself, return early.
				if ( $this->get_license_key_errors() ) {
					return;
				}

				// Fire a hook for Addons to register their updater since we know the key is present.
				do_action( 'envira_gallery_updater', $key );
			}

		}

		/**
		 * Display a nag notice if the user still has Lite activated, or they're on PHP < 5.3
		 *
		 * @since 1.3.8.2
		 */
		public function check_installation() {

			include_once ABSPATH . 'wp-admin/includes/plugin.php';

			if ( class_exists( 'Envira_Gallery_Lite' ) ) {

				add_action( 'admin_notices', array( $this, 'lite_notice' ) );

				return false;

			}

			// Check if supersize plugin is active.
			if ( is_plugin_active( 'envira-supersize/envira-supersize.php' ) ) {
				set_transient( 'envira_supersize_notice', true, 12 * HOUR_IN_SECONDS );
				deactivate_plugins( 'envira-supersize/envira-supersize.php' );
			}

			if ( ! empty( $_REQUEST['close_supersize_notice'] ) ) { // @codingStandardsIgnoreLine
				delete_transient( 'envira_supersize_notice' );
			}

			if ( get_transient( 'envira_supersize_notice' ) ) {
				add_action( 'admin_notices', array( $this, 'supersize_notice' ) );
			}

			// Check if standalone plugin is active.
			if ( is_plugin_active( 'envira-standalone/envira-standalone.php' ) ) {
				update_option( 'envira_gallery_standalone_enabled', true );
				set_transient( 'envira_standalone_notice', true, 12 * HOUR_IN_SECONDS );
				deactivate_plugins( 'envira-standalone/envira-standalone.php' );
			}

			if ( ! empty( $_REQUEST['close_standalone_notice'] ) ) { // @codingStandardsIgnoreLine
				delete_transient( 'envira_standalone_notice' );
			}

			if ( get_transient( 'envira_standalone_notice' ) ) {
				add_action( 'admin_notices', array( $this, 'standalone_notice' ) );
			}
			add_action( 'admin_notices', array( $this, 'beta_notice' ) );

			return true;

		}

		/**
		 * Determine if there needs to be an update based on Envira version.
		 *
		 * @since 1.3.8.2
		 */
		public function maybe_run_update() {

			$version = get_option( 'envira_version' );

			if ( version_compare( $version, ENVIRA_VERSION, '<' ) ) {

				envira_flush_all_cache();

				update_option( 'envira_version', ENVIRA_VERSION, 'no' );

				update_option( 'envira_display_welcome', 'true' );

			}
		}

		/**
		 * Output a nag notice if the user has supersize activated
		 *
		 * @since 1.5.7.2
		 */
		public function supersize_notice() {

			?>
			<div class="notice notice-error" style="position: relative;padding-right: 38px;">
				<p><?php esc_html_e( 'The Supersize addon was detected on your system. All features have been merged directly into Envira Gallery, so it is no longer necessary. It has been deactivated.', 'envira-gallery' ); ?></p>
				<a href="<?php echo esc_url( add_query_arg( 'close_supersize_notice', 'true' ) ); ?>"><button type="button" class="notice-dismiss"><span class="screen-reader-text"><?php esc_html_e( 'Dismiss this notice.', 'envira-gallery' ); ?></span></button></a>
			</div>
			<?php

		}

		/**
		 * Output a nag notice if the user has standalone activated
		 *
		 * @since 1.5.7.2
		 */
		public function standalone_notice() {

			?>
			<div class="notice notice-error" style="position: relative;padding-right: 38px;">
				<p><?php esc_html_e( 'The Standalone addon was detected on your system. All features have been merged directly into Envira Gallery, so it is no longer necessary. It has been deactivated.', 'envira-gallery' ); ?></p>
				<a href="<?php echo esc_url( add_query_arg( 'close_standalone_notice', 'true' ) ); ?>"><button type="button" class="notice-dismiss"><span class="screen-reader-text">Dismiss this notice.</span></button></a>
			</div>
			<?php

		}
		/**
		 * Output a notice for beta program
		 *
		 * @since 1.8.9.7
		 */
		public function beta_notice() {

			$allowed = array( 'pro', 'agency', 'gold', 'ultimate', 'platinum' );
			if ( ! in_array( strtolower( envira_get_license_key_type() ), $allowed, true ) ) {
				return false;
			}
			if ( ! is_envira_page() ) {
				return false;
			}

			$notices = new Notices();

			echo $notices->display_inline_notice('beta_noticexxx', false, 'Apply to our exclusive <a href="https://enviragallery.com/account/become-a-beta-tester" />Beta Test Program</a> to see new updates first!', 'updated', '', '', true, 0 ); // @codingStandardsIgnoreLine
		}
		/**
		 * Output a nag notice if the user has both Lite and Pro activated
		 *
		 * @since 1.3.8.2
		 */
		public function lite_notice() {

			?>
			<div class="error">
				<p><?php esc_html_e( 'Please', 'envira-gallery' ); ?><a href="plugins.php"><?php esc_html_e( 'deactivate', 'envira-gallery' ); ?></a><?php esc_html_e( 'the Envira Lite Plugin. Your premium version of Envira Gallery may not work as expected until the Lite version is deactivated.', 'envira-gallery' ); ?></p>
			</div>
			<?php

		}

		/**
		 * This function runs when WordPress completes its upgrade process
		 * It iterates through each plugin updated to see if Envira is included
		 *
		 * @param array $upgrader_object Upgrader Object.
		 * @param array $options Options.
		 */
		public function envira_wp_upe_upgrade_completed( $upgrader_object = false, $options = false ) {
			// The path to our plugin's main file.
			$our_plugin = plugin_basename( __FILE__ );
			// If an update has taken place and the updated type is plugins and the plugins element exists.
			if ( ( defined( 'ENVIRA_WELCOME_SCREEN_FORCE_UPDATE_TEST' ) && true === ENVIRA_WELCOME_SCREEN_FORCE_UPDATE_TEST ) || ( 'update' === $options['action'] && 'plugin' === $options['type'] && isset( $options['plugins'] ) && ! empty( $options['plugins'] ) && is_array( $options['plugins'] ) ) ) {
				// Iterate through the plugins being updated and check if ours is there.
				foreach ( $options['plugins'] as $plugin ) {
					if ( $plugin === $our_plugin ) {
						set_transient( 'envira_gallery_updated', 1, 5 ); // five seconds
						// Set a transient to record that our plugin has just been updated.
						if ( ( defined( 'ENVIRA_WELCOME_SCREEN_FORCE_UPDATE_TEST' ) && true === ENVIRA_WELCOME_SCREEN_FORCE_UPDATE_TEST ) || ( defined( 'ENVIRA_DEBUG' ) && true === ENVIRA_DEBUG ) ) {
							error_log( 'envira_gallery_updated transient set via envira_wp_upe_upgrade_completed' );
						}
					}
				}
			}
		}

		/**
		 * Loads all admin related files into scope.
		 *
		 * @since 1.7.0
		 */
		public function require_admin() {

			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/admin.php';

		}

		/**
		 * Loads all updater related files and functions into scope.
		 *
		 * @since 1.7.0
		 *
		 * @return null Return early if the license key is not set or there are key errors.
		 */
		public function require_updater() {

			// Retrieve the license key. If it is not set, return early.
			$key = $this->get_license_key();
			if ( ! $key ) {
				return;
			}

			// If there are any errors with the key itself, return early.
			if ( $this->get_license_key_errors() ) {
				return;
			}

			// Go ahead and initialize the updater.
			$args = array(
				'plugin_name' => $this->plugin_name,
				'plugin_slug' => $this->plugin_slug,
				'plugin_path' => plugin_basename( __FILE__ ),
				'plugin_url'  => trailingslashit( WP_PLUGIN_URL ) . $this->plugin_slug,
				'remote_url'  => 'https://enviragallery.com/',
				'version'     => $this->version,
				'key'         => $key,
			);

			$updater = new Updater( $args );

		}
		/**
		 * Load Legacy
		 *
		 * @return void
		 */
		public function load_legacy() {

			require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-common.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-settings.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-shortcode.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-updater.php';

			if ( is_admin() ) {

				require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-metaboxes.php';
				require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-import.php';
				require_once trailingslashit( ENVIRA_DIR ) . 'src/Legacy/class-envira-gallery-license.php';

			}

		}

		/**
		 * Loads all global files into scope.
		 *
		 * @since 1.7.0
		 */
		public function require_global() {

			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/ajax.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/gallery.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/image.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/themes.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/cropping.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/common.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/cache.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/utility.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/serialization.php';
			require_once trailingslashit( ENVIRA_DIR ) . 'src/Functions/template.php';

		}

		/**
		 * Returns a gallery based on ID.
		 *
		 * @since 1.7.0
		 *
		 * @param int $id     The gallery ID used to retrieve a gallery.
		 * @return array|bool Array of gallery data or false if none found.
		 */
		public function get_gallery( $id ) {

			// Return the gallery data.
			return envira_get_gallery( $id );

		}

		/**
		 * Internal method that returns a gallery based on ID.
		 *
		 * @since 1.7.0
		 *
		 * @param int $id     The gallery ID used to retrieve a gallery.
		 * @return array|bool Array of gallery data or false if none found.
		 */
		public function _get_gallery( $id ) { // @codingStandardsIgnoreLine

			return _envira_get_gallery( $id );

		}

		/**
		 * Returns a gallery based on slug.
		 *
		 * @since 1.7.0
		 *
		 * @param string $slug The gallery slug used to retrieve a gallery.
		 * @return array|bool  Array of gallery data or false if none found.
		 */
		public function get_gallery_by_slug( $slug ) {

			return envira_get_gallery_by_slug( $slug );

		}

		/**
		 * Internal method that returns a gallery based on slug.
		 *
		 * @since 1.7.0
		 *
		 * @param string $slug The gallery slug used to retrieve a gallery.
		 * @return array|bool  Array of gallery data or false if none found.
		 */
		public function _get_gallery_by_slug( $slug ) { // @codingStandardsIgnoreLine

			return _envira_get_gallery_by_slug( $slug );

		}

		/**
		 * Returns all galleries created on the site.
		 *
		 * @since 1.7.0
		 *
		 * @param   bool   $skip_empty         Skip empty sliders.
		 * @param   bool   $ignore_cache       Ignore Transient cache.
		 * @param   string $search_terms       Search for specified Galleries by Title.
		 *
		 * @return array|bool                   Array of gallery data or false if none found.
		 */
		public function get_galleries( $skip_empty = true, $ignore_cache = false, $search_terms = '' ) {

			return envira_get_galleries( $skip_empty, $ignore_cache, $search_terms );

		}

		/**
		 * Internal method that returns all galleries created on the site.
		 *
		 * @since 1.7.0
		 *
		 * @param bool   $skip_empty     Skip Empty Galleries.
		 * @param string $search_terms   Search for specified Galleries by Title.
		 * @return mixed                    Array of gallery data or false if none found.
		 */
		public function _get_galleries( $skip_empty = true, $search_terms = '' ) { // @codingStandardsIgnoreLine

			return _envira_get_galleries( $skip_empty, $search_terms );

		}

		/**
		 * Loads the default plugin options.
		 *
		 * @since 1.7.0
		 *
		 * @return array Array of default plugin options.
		 */
		public static function default_options() {

			$ret = array(
				'key'         => '',
				'type'        => '',
				'is_expired'  => false,
				'is_disabled' => false,
				'is_invalid'  => false,
			);

			return apply_filters( 'envira_gallery_default_options', $ret );

		}

		/**
		 * Replaces mb_substr
		 *
		 * @access public
		 * @static
		 * @param string $string The string.
		 * @param int    $offset The offset.
		 * @param int    $length The length.
		 * @return string
		 */
		public static function mb_substr( $string, $offset, $length ) {

			$arr   = preg_split( '//u', $string );
			$slice = array_slice( $arr, $offset + 1, $length );
			return implode( '', $slice );

		}

		/**
		 * Autoload function.
		 *
		 * @access public
		 * @static
		 * @param mixed $class The class.
		 * @return void
		 */
		public static function autoload( $class ) {

			// Prepare variables.
			$prefix   = 'Envira';
			$base_dir = __DIR__ . '/src/';
			$length   = mb_strlen( $prefix );

			// If the class is not using the namespace prefix, return.
			if ( 0 !== strncmp( $prefix, $class, $length ) ) {
				return;
			}

			// Prepare classes to be autoloaded.
			$relative_class = self::mb_substr( $class, 0, strlen( $class ) );
			$relative_class = str_replace( 'Envira\\', '', $relative_class );
			$file           = $base_dir . str_replace( '\\', '/', $relative_class ) . '.php';

			// If the file exists, load it.
			if ( file_exists( $file ) ) {
				require $file;
			}

		}


		/**
		 * Fired when the plugin is activated.
		 *
		 * @since 1.7.0
		 *
		 * @global int $wp_version      The version of WordPress for this install.
		 * @global object $wpdb         The WordPress database object.
		 * @param boolean $network_wide True if WPMU superadmin uses "Network Activate" action, false otherwise.
		 */
		public static function activate( $network_wide ) {

			global $wp_version;

			// Deactivate lite.
			deactivate_plugins( 'envira-gallery-lite/envira-gallery-lite.php' );

			if ( version_compare( $wp_version, '4.4.0', '<' ) && ! defined( 'ENVIRA_FORCE_ACTIVATION' ) ) {
				deactivate_plugins( plugin_basename( __FILE__ ) );
				/* translators: %s: admin url */
				wp_die( sprintf( __( 'Sorry, but your version of WordPress does not meet Envira Gallery\'s required version of <strong>4.4.0</strong> to run properly. The plugin has been deactivated. <a href="%s">Click here to return to the Dashboard</a>.', 'envira-gallery' ), esc_url( get_admin_url() ) ) ); // @codingStandardsIgnoreLine
			}

			if ( is_multisite() && $network_wide ) {
				$site_list = get_sites();
				foreach ( $site_list as $site ) {
					switch_to_blog( $site->blog_id );

					// Set default license option.
					$option = get_option( 'envira_gallery' );
					if ( ! $option || empty( $option ) ) {
						update_option( 'envira_gallery', self::default_options() );
					}

					restore_current_blog();
				}
			} else {
				// Set default license option.
				$option = get_option( 'envira_gallery' );
				if ( ! $option || empty( $option ) ) {
					update_option( 'envira_gallery', self::default_options() );
				}
			}

			// Clear Envira transients.
			if ( function_exists( 'envira_flush_all_cache' ) ) {
				envira_flush_all_cache();
			}

		}

		/**
		 * Fired when the plugin is deactivated to clear flushed permalinks flag and flush the permalinks.
		 *
		 * @since 1.5.7.2
		 *
		 * @param boolean $network_wide True if WPMU superadmin uses "Network Activate" action, false otherwise.
		 */
		public static function deactivate( $network_wide ) {

			// Flush rewrite rules.
			flush_rewrite_rules();
			envira_flush_all_cache();

			// Set flag = false in options.
			update_option( 'envira-standalone-flushed', false );

		}

		/**
		 * Fired when the plugin is uninstalled.
		 *
		 * @since 1.7.0
		 *
		 * @param object $network_wide Placeholder.
		 */
		public function uninstall( $network_wide ) {

			if ( is_multisite() ) {
				$site_list = get_sites();
				foreach ( $site_list as $site ) {
					switch_to_blog( $site->blog_id );
					delete_option( 'envira_gallery' );
					restore_current_blog();
				}
			} else {
				delete_option( 'envira_gallery' );
			}

		}

		/**
		 * Helper Method to define constants
		 *
		 * @since 1.8.8
		 *
		 * @param string $name The name.
		 * @param mixed  $value The value.
		 * @return void
		 */
		public function define( $name, $value ) {
			if ( ! defined( $name ) ) {
				define( $name, $value );
			}
		}
		/**
		 * Returns the singleton instance of the class.
		 *
		 * @since 1.7.0
		 *
		 * @return object The Envira_Gallery object.
		 */
		public static function get_instance() {

			if ( ! isset( self::$instance ) && ! ( self::$instance instanceof Envira_Gallery ) ) {

				self::$instance = new self();
				self::$instance->setup_constants();
				self::$instance->require_global();

			}

			return self::$instance;

		}

		// DEPRICATED!
		/**
		 * Returns the license key for Envira.
		 *
		 * @since 1.7.0
		 *
		 * @return string $key The user's license key for Envira.
		 */
		public function get_license_key() {

			return envira_get_license_key();

		}

		/**
		 * Returns the license key type for Envira.
		 *
		 * @since 1.7.0
		 *
		 * @return string $type The user's license key type for Envira.
		 */
		public function get_license_key_type() {

			return envira_get_license_key_type();

		}

		/**
		 * Returns possible license key error flag.
		 *
		 * @since 1.7.0
		 *
		 * @return bool True if there are license key errors, false otherwise.
		 */
		public function get_license_key_errors() {

			$option = get_option( 'envira_gallery' );
			return isset( $option['is_expired'] ) && $option['is_expired'] || isset( $option['is_disabled'] ) && $option['is_disabled'] || isset( $option['is_invalid'] ) && $option['is_invalid'];

		}

		/**
		 * Returns the number of images in a gallery.
		 *
		 * @since 1.7.0
		 *
		 * @param int $id The gallery ID used to retrieve a gallery.
		 * @return int    The number of images in the gallery.
		 */
		public function get_gallery_image_count( $id ) {

			return envira_get_gallery_image_count( $id );

		}

	}

	spl_autoload_register( 'Envira_Gallery::autoload' );

	/**
	 * Envira Gallery init function.
	 *
	 * @access public
	 * @return object
	 * @since 1.7.0
	 */
	function envira() {

		return Envira_Gallery::get_instance();

	}

	add_action( 'plugins_loaded', 'envira' );

endif;