<?php



if ( ! class_exists( 'AM_Notification' ) ) {

	/**

	 * Awesome Motive Notifications

	 *

	 * This creates a custom post type (if it doesn't exist) and calls the API to

	 * retrieve notifications for this product.

	 *

	 * @package    AwesomeMotive

	 * @author     AwesomeMotive Team

	 * @license    GPL-2.0+

	 * @copyright  Copyright (c) 2018, Awesome Motive LLC

	 * @version    1.0.6

	 */

	class AM_Notification {



		/**

		 * The api url we are calling.

		 *

		 * @since 1.0.0

		 *

		 * @var string

		 */

		public $api_url = 'https://api.awesomemotive.com/v1/notification/';



		/**

		 * A unique slug for this plugin.

		 * (Not the WordPress plugin slug)

		 *

		 * @since 1.0.0

		 *

		 * @var string

		 */

		public $plugin;



		/**

		 * The current plugin version.

		 *

		 * @since 1.0.0

		 *

		 * @var string

		 */

		public $plugin_version;



		/**

		 * Flag if a notice has been registered.

		 *

		 * @since 1.0.0

		 *

		 * @var bool

		 */

		public static $registered = false;



		/**

		 * Construct.

		 *

		 * @since 1.0.0

		 *

		 * @param string $plugin The plugin slug.

		 * @param mixed $version The version of the plugin.

		 */

		public function __construct( $plugin = '', $version = 0 ) {

			$this->plugin         = $plugin;

			$this->plugin_version = $version;



			add_action( 'init', array( $this, 'custom_post_type' ) );

			add_action( 'admin_init', array( $this, 'get_remote_notifications' ), 100 );

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

			add_action( 'wp_ajax_am_notification_dismiss', array( $this, 'dismiss_notification' ) );

		}



		/**

		 * Registers a custom post type.

		 *

		 * @since 1.0.0

		 */

		public function custom_post_type() {

			register_post_type( 'amn_' . $this->plugin, array(

				'label'      => $this->plugin . ' Announcements',

				'can_export' => false,

				'supports'   => false,

			) );

		}



		/**

		 * Retrieve the remote notifications if the time has expired.

		 *

		 * @since 1.0.0

		 */

		public function get_remote_notifications() {

			if ( ! apply_filters( 'am_notifications_display', is_super_admin() ) ) {

				return;

			}



			$last_checked = get_option( '_amn_' . $this->plugin . '_last_checked', strtotime( '-1 week' ) );



			if ( $last_checked < strtotime( 'today midnight' ) ) {

				$plugin_notifications = $this->get_plugin_notifications( 1 );

				$notification_id      = null;



				if ( ! empty( $plugin_notifications ) ) {

					// Unset it from the array.

					$notification    = $plugin_notifications[0];

					$notification_id = get_post_meta( $notification->ID, 'notification_id', true );

				}



				$response = wp_remote_retrieve_body( wp_remote_post( $this->api_url, array(

					'body' => array(

						'slug'              => $this->plugin,

						'version'           => $this->plugin_version,

						'last_notification' => $notification_id,

					),

				) ) );



				$data = json_decode( $response );



				if ( ! empty( $data->id ) ) {

					$notifications = array();



					foreach ( (array) $data->slugs as $slug ) {

						$notifications = array_merge(

							$notifications,

							(array) get_posts(

								array(

									'post_type'   => 'amn_' . $slug,

									'post_status' => 'all',

									'meta_key'    => 'notification_id',

									'meta_value'  => $data->id,

								)

							)

						);

					}



					if ( empty( $notifications ) ) {

						$new_notification_id = wp_insert_post(

							array(

								'post_content' => wp_kses_post( $data->content ),

								'post_type'    => 'amn_' . $this->plugin,

							)

						);



						update_post_meta( $new_notification_id, 'notification_id', absint( $data->id ) );

						update_post_meta( $new_notification_id, 'type', sanitize_text_field( trim( $data->type ) ) );

						update_post_meta( $new_notification_id, 'dismissable', (bool) $data->dismissible ? 1 : 0 );

						update_post_meta( $new_notification_id, 'location', function_exists( 'wp_json_encode' ) ? wp_json_encode( $data->location ) : json_encode( $data->location ) );

						update_post_meta( $new_notification_id, 'version', sanitize_text_field( trim( $data->version ) ) );

						update_post_meta( $new_notification_id, 'viewed', 0 );

						update_post_meta( $new_notification_id, 'expiration', $data->expiration ? absint( $data->expiration ) : false );

						update_post_meta( $new_notification_id, 'plans', function_exists( 'wp_json_encode' ) ? wp_json_encode( $data->plans ) : json_encode( $data->plans ) );

					}

				}



				// Possibly revoke notifications.

				if ( ! empty( $data->revoked ) ) {

					$this->revoke_notifications( $data->revoked );

				}



				// Set the option now so we can't run this again until after 24 hours.

				update_option( '_amn_' . $this->plugin . '_last_checked', strtotime( 'today midnight' ) );

			}

		}



		/**

		 * Get local plugin notifications that have already been set.

		 *

		 * @since 1.0.0

		 *

		 * @param  integer $limit Set the limit for how many posts to retrieve.

		 * @param  array $args Any top-level arguments to add to the array.

		 *

		 * @return WP_Post[] WP_Post that match the query.

		 */

		public function get_plugin_notifications( $limit = - 1, $args = array() ) {

			return get_posts(

				array(

					'posts_per_page' => $limit,

					'post_type'      => 'amn_' . $this->plugin,

				) + $args

			);

		}



		/**

		 * Display any notifications that should be displayed.

		 *

		 * @since 1.0.0

		 */

		public function display_notifications() {

			if ( ! apply_filters( 'am_notifications_display', is_super_admin() ) ) {

				return;

			}



			$plugin_notifications = $this->get_plugin_notifications( - 1, array(

				'post_status' => 'all',

				'meta_key'    => 'viewed',

				'meta_value'  => '0',

			) );



			$plugin_notifications = $this->validate_notifications( $plugin_notifications );



			if ( ! empty( $plugin_notifications ) && ! self::$registered ) {

				foreach ( $plugin_notifications as $notification ) {

					$dismissable = get_post_meta( $notification->ID, 'dismissable', true );

					$type        = get_post_meta( $notification->ID, 'type', true );

					?>

					<div class="am-notification am-notification-<?php echo absint( $notification->ID ); ?> notice notice-<?php echo esc_attr( $type ); ?><?php echo $dismissable ? ' is-dismissible' : ''; ?>">

						<?php echo wp_kses_post( $notification->post_content ); ?>

					</div>

					<script type="text/javascript">

						jQuery( document ).ready( function ( $ ) {

							$( document ).on( 'click', '.am-notification-<?php echo absint( $notification->ID ); ?> button.notice-dismiss', function ( event ) {

								$.post( ajaxurl, {

									action: 'am_notification_dismiss',

									notification_id: '<?php echo absint( $notification->ID ); ?>'

								} );

							} );

						} );

					</script>

					<?php

				}



				self::$registered = true;

			}

		}



		/**

		 * Validate the notifications before displaying them.

		 *

		 * @since 1.0.0

		 *

		 * @param  array $plugin_notifications An array of plugin notifications.

		 *

		 * @return array                       A filtered array of plugin notifications.

		 */

		public function validate_notifications( $plugin_notifications ) {

			global $pagenow;



			foreach ( $plugin_notifications as $key => $notification ) {

				// Location validation.

				$location = (array) json_decode( get_post_meta( $notification->ID, 'location', true ) );

				$continue = false;

				if ( ! in_array( 'everywhere', $location, true ) ) {

					if ( in_array( 'index.php', $location, true ) && 'index.php' === $pagenow ) {

						$continue = true;

					}



					if ( in_array( 'plugins.php', $location, true ) && 'plugins.php' === $pagenow ) {

						$continue = true;

					}



					if ( ! $continue ) {

						unset( $plugin_notifications[ $key ] );

					}

				}



				// Plugin validation (OR conditional).

				$plugins  = (array) json_decode( get_post_meta( $notification->ID, 'plugins', true ) );

				$continue = false;

				if ( ! empty( $plugins ) ) {

					foreach ( $plugins as $plugin ) {

						if ( is_plugin_active( $plugin ) ) {

							$continue = true;

						}

					}



					if ( ! $continue ) {

						unset( $plugin_notifications[ $key ] );

					}

				}



				// Theme validation.

				$theme    = get_post_meta( $notification->ID, 'theme', true );

				$continue = (string) wp_get_theme() === $theme;



				if ( ! empty( $theme ) && ! $continue ) {

					unset( $plugin_notifications[ $key ] );

				}



				// Version validation.

				$version  = get_post_meta( $notification->ID, 'version', true );

				$continue = false;

				if ( ! empty( $version ) ) {

					if ( version_compare( $this->plugin_version, $version, '<=' ) ) {

						$continue = true;

					}



					if ( ! $continue ) {

						unset( $plugin_notifications[ $key ] );

					}

				}



				// Expiration validation.

				$expiration = get_post_meta( $notification->ID, 'expiration', true );

				$continue   = false;

				if ( ! empty( $expiration ) ) {

					if ( $expiration > time() ) {

						$continue = true;

					}



					if ( ! $continue ) {

						unset( $plugin_notifications[ $key ] );

					}

				}



				// Plan validation.

				$plans    = (array) json_decode( get_post_meta( $notification->ID, 'plans', true ) );

				$continue = false;

				if ( ! empty( $plans ) ) {

					$level = $this->get_plan_level();

					if ( in_array( $level, $plans, true ) ) {

						$continue = true;

					}



					if ( ! $continue ) {

						unset( $plugin_notifications[ $key ] );

					}

				}

			}



			return $plugin_notifications;

		}



		/**

		 * Grab the current plan level.

		 *

		 * @since 1.0.0

		 *

		 * @return string The current plan level.

		 */

		public function get_plan_level() {

			// Prepare variables.

			$key   = '';

			$level = '';



			switch ( $this->plugin ) {

				case 'wpforms':

					$option = get_option( 'wpforms_license' );

					$key    = is_array( $option ) && isset( $option['key'] ) ? $option['key'] : '';

					$level  = is_array( $option ) && isset( $option['type'] ) ? $option['type'] : '';



					// Possibly check for a constant.

					if ( empty( $key ) && defined( 'WPFORMS_LICENSE_KEY' ) ) {

						$key = WPFORMS_LICENSE_KEY;

					}

					break;

				case 'mi-lite':

				case 'mi':

					if ( version_compare( MONSTERINSIGHTS_VERSION, '6.9.0', '>=' ) ) {

						if ( MonsterInsights()->license->get_site_license_type() ) {

							$key  = MonsterInsights()->license->get_site_license_key();

							$type = MonsterInsights()->license->get_site_license_type();

						} else if ( MonsterInsights()->license->get_network_license_type() ) {

							$key  = MonsterInsights()->license->get_network_license_key();

							$type = MonsterInsights()->license->get_network_license_type();

						}



						// Check key fallbacks

						if ( empty( $key ) ) {

							$key = MonsterInsights()->license->get_license_key();

						}

					} else {

						$option = get_option( 'monsterinsights_license' );

						$key    = is_array( $option ) && isset( $option['key'] ) ? $option['key'] : '';

						$level  = is_array( $option ) && isset( $option['type'] ) ? $option['type'] : '';



						// Possibly check for a constant.

						if ( empty( $key ) && defined( 'MONSTERINSIGHTS_LICENSE_KEY' ) && is_string( MONSTERINSIGHTS_LICENSE_KEY ) && strlen( MONSTERINSIGHTS_LICENSE_KEY ) > 10 ) {

							$key = MONSTERINSIGHTS_LICENSE_KEY;

						}

					}

					break;

				case 'om':

					$option = get_option( 'optin_monster_api' );

					$key    = is_array( $option ) && isset( $option['api']['apikey'] ) ? $option['api']['apikey'] : '';



					// Possibly check for a constant.

					if ( empty( $key ) && defined( 'OPTINMONSTER_REST_API_LICENSE_KEY' ) ) {

						$key = OPTINMONSTER_REST_API_LICENSE_KEY;

					}



					// If the key is still empty, check for the old legacy key.

					if ( empty( $key ) ) {

						$key = is_array( $option ) && isset( $option['api']['key'] ) ? $option['api']['key'] : '';

					}

					break;

			}



			// Possibly set the level to 'none' if the key is empty and no level has been set.

			if ( empty( $key ) && empty( $level ) ) {

				$level = 'none';

			}



			// Possibly set the level to 'unknown' if a key is entered, but no level can be determined (such as manually entered key)

			if ( ! empty( $key ) && empty( $level ) ) {

				$level = 'unknown';

			}	



			// Normalize the level.

			switch ( $level ) {

				case 'bronze':

				case 'personal':

					$level = 'basic';

					break;

				case 'silver':

				case 'multi':

					$level = 'plus';

					break;

				case 'gold':

				case 'developer':

					$level = 'pro';

					break;

				case 'platinum':

				case 'master':

					$level = 'ultimate';

					break;

			}



			// Return the plan level.

			return $level;

		}



		/**

		 * Dismiss the notification via AJAX.

		 *

		 * @since 1.0.0

		 */

		public function dismiss_notification() {

			if ( ! apply_filters( 'am_notifications_display', is_super_admin() ) ) {

				die;

			}



			$notification_id = intval( $_POST['notification_id'] );

			update_post_meta( $notification_id, 'viewed', 1 );

			die;

		}



		/**

		 * Revokes notifications.

		 *

		 * @since 1.0.0

		 *

		 * @param array $ids An array of notification IDs to revoke.

		 */

		public function revoke_notifications( $ids ) {

			// Loop through each of the IDs and find the post that has it as meta.

			foreach ( (array) $ids as $id ) {

				$notifications = $this->get_plugin_notifications( - 1, array( 'post_status' => 'all', 'meta_key' => 'notification_id', 'meta_value' => $id ) );

				if ( $notifications ) {

					foreach ( $notifications as $notification ) {

						update_post_meta( $notification->ID, 'viewed', 1 );

					}

				}

			}

		}

	}

}