<?php
/**
 * Known activity types and translated, plain-text presentation.
 *
 * @package AdminWatch
 */

defined( 'ABSPATH' ) || exit;

class WebStudio_Admin_Watch_Activity_Events {
	const GROUPS = array(
		'users' => array( 'login_succeeded', 'logout', 'login_failed', 'user_created', 'user_deleted', 'user_role_changed', 'password_changed' ),
		'content' => array( 'post_created', 'post_updated', 'post_trashed', 'post_restored', 'post_deleted' ),
		'plugins' => array( 'plugin_installed', 'plugin_activated', 'plugin_deactivated', 'plugin_updated', 'plugin_deleted' ),
		'themes' => array( 'theme_installed', 'theme_switched', 'theme_updated', 'theme_deleted' ),
		'wordpress' => array( 'wordpress_updated' ),
		'adminwatch' => array( 'settings_updated' ),
	);

	/** Category labels for filters and badges. */
	public static function categories() {
		return array(
			'users' => __( 'Users & Access', 'adminwatch-central' ),
			'content' => __( 'Content', 'adminwatch-central' ),
			'plugins' => __( 'Plugins', 'adminwatch-central' ),
			'themes' => __( 'Themes', 'adminwatch-central' ),
			'wordpress' => __( 'WordPress', 'adminwatch-central' ),
			'adminwatch' => __( 'Admin Watch', 'adminwatch-central' ),
		);
	}

	/** Return a fixed event definition; unknown events cannot be persisted. */
	public static function definition( $type ) {
		foreach ( self::GROUPS as $category => $types ) {
			if ( in_array( $type, $types, true ) ) {
				$fields = array();
				if ( 'user_role_changed' === $type ) {
					$fields = array( 'old_roles', 'new_roles' );
				} elseif ( in_array( $type, array( 'plugin_updated', 'theme_updated', 'wordpress_updated' ), true ) ) {
					$fields = array( 'old_version', 'new_version' );
				} elseif ( 'theme_switched' === $type ) {
					$fields = array( 'old_theme' );
				} elseif ( 'settings_updated' === $type ) {
					$fields = array( 'monitor_404s', 'retention_days', 'delete_data', 'monitor_activity', 'activity_retention_days', 'record_failed_logins' );
				}
				if ( 'plugins' === $category ) {
					$fields[] = 'plugin_file';
				} elseif ( 'themes' === $category ) {
					$fields[] = 'theme_slug';
				}
				return array( 'category' => $category, 'severity' => 'login_failed' === $type || 'user_role_changed' === $type ? 'attention' : ( in_array( $category, array( 'plugins', 'themes', 'wordpress' ), true ) ? 'notice' : 'info' ), 'fields' => $fields );
			}
		}
		return null;
	}

	/** Match translated fixed message wording without storing or searching rendered HTML/JSON. */
	public static function search_types( $search ) {
		$matches = array();
		foreach ( self::GROUPS as $types ) {
			foreach ( $types as $type ) {
				$row = (object) array( 'event_type' => $type, 'actor_user_id' => 0, 'object_type' => '', 'object_id' => 0, 'object_label' => '' );
				$template = str_replace( self::user_label( 0 ), '', self::message( $row ) );
				if ( false !== stripos( $template, $search ) ) {
					$matches[] = $type;
				}
			}
		}
		return $matches;
	}

	/** Resolve account labels without storing duplicate personal names. */
	public static function user_label( $id ) {
		$user = $id ? get_userdata( absint( $id ) ) : false;
		if ( $user ) {
			return $user->display_name;
		}
		if ( $id ) {
			/* translators: %d: ID of an account no longer available. */
			return sprintf( __( 'User #%d (unavailable)', 'adminwatch-central' ), absint( $id ) );
		}
		return __( 'System / WordPress', 'adminwatch-central' );
	}

	/** Render known templates, never stored messages or HTML. */
	public static function message( $row ) {
		$actor = self::user_label( $row->actor_user_id );
		$object = 'user' === $row->object_type ? self::user_label( $row->object_id ) : $row->object_label;
		switch ( $row->event_type ) {
			case 'login_succeeded':
				/* translators: %s: User display name. */
				return sprintf( __( '%s logged in.', 'adminwatch-central' ), $actor );
			case 'logout':
				/* translators: %s: User display name. */
				return sprintf( __( '%s logged out.', 'adminwatch-central' ), $actor );
			case 'login_failed':
				if ( '' === $row->object_label ) {
					return __( 'Failed login attempts with other or unspecified identifiers.', 'adminwatch-central' );
				}
				/* translators: %s: Bounded attempted username or email address. */
				return sprintf( __( 'Failed login using identifier "%s".', 'adminwatch-central' ), $row->object_label );
			case 'user_created':
				/* translators: 1: Actor. 2: Target account. */
				return sprintf( __( '%1$s created account %2$s.', 'adminwatch-central' ), $actor, $object );
			case 'user_deleted':
				/* translators: 1: Actor. 2: Target account. */
				return sprintf( __( '%1$s deleted account %2$s.', 'adminwatch-central' ), $actor, $object );
			case 'user_role_changed':
				/* translators: 1: Actor. 2: Target account. */
				return sprintf( __( '%1$s changed roles for %2$s.', 'adminwatch-central' ), $actor, $object );
			case 'password_changed':
				/* translators: %s: Account whose password was changed; the actor may be unknown. */
				return sprintf( __( 'Password changed for %s.', 'adminwatch-central' ), $object );
			case 'post_created':
				/* translators: 1: Actor. 2: Content title. */
				return sprintf( __( '%1$s created "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'post_updated':
				/* translators: 1: Actor. 2: Content title. */
				return sprintf( __( '%1$s updated "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'post_trashed':
				/* translators: 1: Actor. 2: Content title. */
				return sprintf( __( '%1$s moved "%2$s" to Trash.', 'adminwatch-central' ), $actor, $object );
			case 'post_restored':
				/* translators: 1: Actor. 2: Content title. */
				return sprintf( __( '%1$s restored "%2$s" from Trash.', 'adminwatch-central' ), $actor, $object );
			case 'post_deleted':
				/* translators: 1: Actor. 2: Content title. */
				return sprintf( __( '%1$s permanently deleted "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'plugin_installed':
				/* translators: 1: Actor. 2: Plugin name. */
				return sprintf( __( '%1$s installed plugin "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'plugin_activated':
				/* translators: 1: Actor. 2: Plugin name. */
				return sprintf( __( '%1$s activated plugin "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'plugin_deactivated':
				/* translators: 1: Actor. 2: Plugin name. */
				return sprintf( __( '%1$s deactivated plugin "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'plugin_updated':
				/* translators: 1: Actor. 2: Plugin name. */
				return sprintf( __( '%1$s updated plugin "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'plugin_deleted':
				/* translators: 1: Actor. 2: Plugin name. */
				return sprintf( __( '%1$s deleted plugin "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'theme_installed':
				/* translators: 1: Actor. 2: Theme name. */
				return sprintf( __( '%1$s installed theme "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'theme_updated':
				/* translators: 1: Actor. 2: Theme name. */
				return sprintf( __( '%1$s updated theme "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'theme_deleted':
				/* translators: 1: Actor. 2: Theme name. */
				return sprintf( __( '%1$s deleted theme "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'theme_switched':
				/* translators: 1: Actor. 2: Theme name. */
				return sprintf( __( '%1$s switched to theme "%2$s".', 'adminwatch-central' ), $actor, $object );
			case 'wordpress_updated':
				return __( 'WordPress core update completed.', 'adminwatch-central' );
			case 'settings_updated':
				/* translators: %s: Actor. */
				return sprintf( __( '%s updated Admin Watch Central settings.', 'adminwatch-central' ), $actor );
		}
		return __( 'Activity recorded.', 'adminwatch-central' );
	}

	/** Human-readable details from known metadata fields only. */
	public static function details( $row ) {
		$data = json_decode( (string) $row->event_data, true );
		$data = is_array( $data ) ? $data : array();
		if ( 'login_failed' === $row->event_type ) {
			/* translators: %d: Number of attempts within this 15-minute bucket. */
			return sprintf( _n( '%d attempt', '%d attempts', $row->occurrence_count, 'adminwatch-central' ), $row->occurrence_count );
		}
		if ( isset( $data['old_version'], $data['new_version'] ) ) {
			/* translators: 1: Previous version. 2: New version. */
			return sprintf( __( 'Version %1$s → %2$s', 'adminwatch-central' ), $data['old_version'], $data['new_version'] );
		}
		if ( isset( $data['old_roles'], $data['new_roles'] ) ) {
			$old_roles = '' === $data['old_roles'] ? __( 'No role', 'adminwatch-central' ) : $data['old_roles'];
			$new_roles = '' === $data['new_roles'] ? __( 'No role', 'adminwatch-central' ) : $data['new_roles'];
			/* translators: 1: Previous role slugs. 2: New role slugs. */
			return sprintf( __( 'Roles: %1$s → %2$s', 'adminwatch-central' ), $old_roles, $new_roles );
		}
		if ( isset( $data['old_theme'] ) ) {
			/* translators: %s: Previous theme name. */
			return sprintf( __( 'Previous theme: %s', 'adminwatch-central' ), $data['old_theme'] );
		}
		if ( 'settings_updated' === $row->event_type ) {
			$labels = array(
				'monitor_404s' => __( '404 monitoring', 'adminwatch-central' ),
				'retention_days' => __( '404 retention', 'adminwatch-central' ),
				'delete_data' => __( 'Delete data on uninstall', 'adminwatch-central' ),
				'monitor_activity' => __( 'Site Activity', 'adminwatch-central' ),
				'activity_retention_days' => __( 'Activity retention', 'adminwatch-central' ),
				'record_failed_logins' => __( 'Failed-login recording', 'adminwatch-central' ),
			);
			$parts = array();
			foreach ( $labels as $key => $label ) {
				if ( isset( $data[ $key ] ) ) {
					/* translators: 1: Setting label. 2: Previous and new values. */
					$parts[] = sprintf( __( '%1$s: %2$s', 'adminwatch-central' ), $label, $data[ $key ] );
				}
			}
			return implode( '; ', $parts );
		}
		return '';
	}
}