<?php
/**
 * The conversation with the person behind a lead: what the team answered, by email with files or
 * on WhatsApp, and what the person wrote again through a form of the site.
 *
 * @package Dealroot
 */

namespace Dealroot;

use Dealroot\Admin\Admin;

defined( 'ABSPATH' ) || exit;

/**
 * Messages of leads.
 */
class Messages {

	/**
	 * Files of one email together, in bytes. Most mailboxes take 20 to 25 MB.
	 */
	const MAX_BYTES = 15 * MB_IN_BYTES;

	/**
	 * Files of one email.
	 */
	const MAX_FILES = 10;

	/**
	 * Days a lead stays open for what the same person sends again.
	 */
	const OPEN_DAYS = 90;

	/**
	 * Ways a message was sent or came in.
	 */
	const CHANNELS = array( 'email', 'mail_app', 'whatsapp', 'form', 'telegram', 'confirm', 'offer' );

	/**
	 * Hooks.
	 */
	public function register() {
		add_action( 'wp_ajax_dealroot_reply_email', array( __CLASS__, 'ajax_send' ) );
		add_action( 'wp_ajax_dealroot_reply_logged', array( __CLASS__, 'ajax_logged' ) );
		add_action( 'wp_ajax_dealroot_reply_unlog', array( __CLASS__, 'ajax_unlog' ) );
		add_filter( 'dealroot_attention_items', array( __CLASS__, 'attention' ), 8 );
	}

	/**
	 * People who wrote again, on the overview.
	 *
	 * @param array $items Items.
	 * @return array
	 */
	public static function attention( $items ) {
		$unread = self::unread( 3 );

		if ( 1 === count( $unread ) ) {
			$lead    = $unread[0];
			$items[] = array(
				'tone'   => 'info',
				/* translators: %s: name of the person */
				'title'  => sprintf( __( '%s wrote again', 'dealroot' ), '' !== trim( (string) $lead->name ) ? $lead->name : $lead->email ),
				'text'   => __( 'The new message is in the conversation of the enquiry.', 'dealroot' ),
				'url'    => admin_url( 'admin.php?page=dealroot&lead=' . (int) $lead->id ),
				'action' => __( 'Read it', 'dealroot' ),
			);
		} elseif ( $unread ) {
			$items[] = array(
				'tone'   => 'info',
				'title'  => __( 'People wrote again', 'dealroot' ),
				'text'   => implode( ', ', array_map( static fn( $lead ) => '' !== trim( (string) $lead->name ) ? $lead->name : $lead->email, $unread ) ),
				'url'    => admin_url( 'admin.php?page=dealroot-leads' ),
				'action' => __( 'Open the leads', 'dealroot' ),
			);
		}

		return $items;
	}

	/**
	 * Table name.
	 *
	 * @return string
	 */
	public static function table() {
		global $wpdb;

		return $wpdb->prefix . 'dealroot_messages';
	}

	/**
	 * Stores a message.
	 *
	 * @param int    $lead_id   Lead ID.
	 * @param string $direction "out" from the team, "in" from the person.
	 * @param string $channel   One of CHANNELS.
	 * @param string $body      Text.
	 * @param array  $extra     subject, files (list of id, name, url, size), user_id.
	 * @return int Message ID.
	 */
	public static function add( $lead_id, $direction, $channel, $body, array $extra = array() ) {
		global $wpdb;

		if ( ! in_array( $channel, self::CHANNELS, true ) || ! Leads::get( (int) $lead_id ) ) {
			return 0;
		}

		$now = current_time( 'mysql', true );

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
		$wpdb->insert(
			self::table(),
			array(
				'lead_id'    => (int) $lead_id,
				'created_at' => $now,
				'direction'  => 'in' === $direction ? 'in' : 'out',
				'channel'    => $channel,
				'user_id'    => (int) ( $extra['user_id'] ?? ( 'in' === $direction ? 0 : get_current_user_id() ) ),
				'subject'    => mb_substr( sanitize_text_field( (string) ( $extra['subject'] ?? '' ) ), 0, 191 ),
				'body'       => mb_substr( sanitize_textarea_field( (string) $body ), 0, 20000 ),
				'files'      => ! empty( $extra['files'] ) ? wp_json_encode( array_values( (array) $extra['files'] ) ) : '',
			)
		);

		$id = (int) $wpdb->insert_id;

		if ( $id ) {
			$columns = array( 'last_message_at' => $now );

			if ( 'in' === $direction ) {
				$columns['unread'] = 1;
			}

			$wpdb->update( Installer::table(), $columns, array( 'id' => (int) $lead_id ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		}

		return $id;
	}

	/**
	 * Messages of a lead, oldest first.
	 *
	 * @param int $lead_id Lead ID.
	 * @return object[]
	 */
	public static function for_lead( $lead_id ) {
		global $wpdb;

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		return (array) $wpdb->get_results( $wpdb->prepare( 'SELECT * FROM %i WHERE lead_id = %d ORDER BY id ASC LIMIT 200', self::table(), (int) $lead_id ) );
	}

	/**
	 * Removes the messages of deleted leads.
	 *
	 * @param int[] $ids Lead IDs.
	 */
	public static function delete_for( array $ids ) {
		global $wpdb;

		$ids = array_filter( array_map( 'absint', $ids ) );

		if ( $ids ) {
			// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
			$wpdb->query( $wpdb->prepare( 'DELETE FROM %i WHERE lead_id IN (' . implode( ',', array_fill( 0, count( $ids ), '%d' ) ) . ')', array_merge( array( self::table() ), $ids ) ) );
		}
	}

	/**
	 * Marks the new messages of a lead as seen.
	 *
	 * @param object $lead Lead.
	 */
	public static function seen( $lead ) {
		global $wpdb;

		if ( ! empty( $lead->unread ) ) {
			$wpdb->update( Installer::table(), array( 'unread' => 0 ), array( 'id' => (int) $lead->id ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		}
	}

	/**
	 * Leads with a message the team has not seen yet, newest first.
	 *
	 * @param int $limit Most leads.
	 * @return object[]
	 */
	public static function unread( $limit = 10 ) {
		global $wpdb;

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		return (array) $wpdb->get_results( $wpdb->prepare( "SELECT * FROM %i WHERE unread = 1 AND status <> 'spam' ORDER BY last_message_at DESC LIMIT %d", Installer::table(), (int) $limit ) );
	}

	/**
	 * The open lead of the same person, for what they send again through a form: a new enquiry
	 * is only made once the last one was won or lost, or is months old.
	 *
	 * @param array $data Columns of the new submission.
	 * @return object|null Lead.
	 */
	public static function open_lead( array $data ) {
		global $wpdb;

		$email = (string) ( $data['email'] ?? '' );
		$phone = self::digits( (string) ( $data['phone'] ?? '' ) );

		if ( ( '' === $email && strlen( $phone ) < 6 )
			|| 'spam' === ( $data['status'] ?? '' )
			|| in_array( (string) ( $data['form_plugin'] ?? '' ), array( 'order', 'woocommerce', 'manual' ), true )
			|| Orders::is_checkout( (string) ( $data['form_name'] ?? '' ) )
		) {
			return null;
		}

		/**
		 * Filters whether what a person sends again goes into their open lead.
		 *
		 * @param bool  $join Whether to add it to the open lead.
		 * @param array $data Columns of the new submission.
		 */
		if ( ! apply_filters( 'dealroot_join_open_lead', true, $data ) ) {
			return null;
		}

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		$rows = (array) $wpdb->get_results(
			$wpdb->prepare(
				"SELECT * FROM %i
				WHERE status IN ('new', 'contacted', 'qualified') AND form_plugin NOT IN ('order', 'woocommerce', 'manual') AND created_at >= %s
					AND ( email = NULLIF(%s, '') OR phone <> '' )
				ORDER BY id DESC LIMIT 50",
				Installer::table(),
				gmdate( 'Y-m-d H:i:s', time() - self::OPEN_DAYS * DAY_IN_SECONDS ),
				$email
			)
		);

		foreach ( $rows as $row ) {
			$same_email = '' !== $email && 0 === strcasecmp( (string) $row->email, $email );
			$same_phone = strlen( $phone ) >= 6 && self::digits( (string) $row->phone ) === $phone;

			if ( ( $same_email || $same_phone ) && ! Orders::is_checkout( (string) $row->form_name ) ) {
				return $row;
			}
		}

		return null;
	}

	/**
	 * What a person sent again through a form, as a message of their open lead.
	 *
	 * @param object $lead   Open lead.
	 * @param array  $data   Columns of the submission.
	 * @param array  $fields Normalized fields.
	 * @return int Message ID, 0 when it only repeated what is there.
	 */
	public static function received( $lead, array $data, array $fields ) {
		$body = self::text_of( $fields, $data );

		// The same form sent twice, e.g. a double click.
		$last = self::for_lead( (int) $lead->id );
		$last = $last ? end( $last ) : null;

		if ( '' === $body || ( $last && 'in' === $last->direction && $last->body === $body ) || self::text_of( (array) json_decode( (string) $lead->fields, true ), (array) $lead ) === $body ) {
			return 0;
		}

		$id = self::add(
			(int) $lead->id,
			'in',
			'form',
			$body,
			array(
				'subject' => (string) ( $data['form_name'] ?? '' ),
				'user_id' => 0,
			)
		);

		if ( $id ) {
			/**
			 * Fires after a person wrote again through a form of the site.
			 *
			 * @param int $lead_id    Lead ID.
			 * @param int $message_id Message ID.
			 */
			do_action( 'dealroot_message_received', (int) $lead->id, $id );
		}

		return $id;
	}

	/**
	 * What a person wrote, without the contact details and consent boxes.
	 *
	 * @param array $fields Normalized fields.
	 * @param array $data   Columns with name, email and phone.
	 * @return string
	 */
	public static function text_of( array $fields, array $data ) {
		$skip  = array_filter( array( (string) ( $data['email'] ?? '' ), (string) ( $data['phone'] ?? '' ), (string) ( $data['name'] ?? '' ) ), 'strlen' );
		$lines = array();

		foreach ( $fields as $field ) {
			$value = trim( (string) ( $field['value'] ?? '' ) );

			if ( '' === $value || in_array( $value, $skip, true ) || in_array( strtolower( $value ), array( 'on', 'yes', 'true', '1', 'ja' ), true ) || in_array( (string) ( $field['type'] ?? '' ), array( 'email', 'tel', 'hidden', 'checkbox', 'consent' ), true ) ) {
				continue;
			}

			$lines[] = 'textarea' === ( $field['type'] ?? '' ) ? $value : trim( (string) ( $field['label'] ?? '' ) . ': ' . $value, ': ' );
		}

		return trim( implode( "\n", $lines ) );
	}

	/**
	 * Files of the media library for an email, checked.
	 *
	 * @param int[] $ids Attachment IDs.
	 * @return array|\WP_Error List of id, name, url, size and path.
	 */
	public static function files( array $ids ) {
		$files = array();
		$bytes = 0;

		foreach ( array_slice( array_unique( array_filter( array_map( 'absint', $ids ) ) ), 0, self::MAX_FILES + 1 ) as $id ) {
			$path = 'attachment' === get_post_type( $id ) ? get_attached_file( $id ) : '';

			if ( ! $path || ! is_readable( $path ) ) {
				return new \WP_Error( 'dealroot_file', __( 'A file could not be found. Choose it again.', 'dealroot' ) );
			}

			$size   = (int) filesize( $path );
			$bytes += $size;

			$files[] = array(
				'id'   => $id,
				'name' => wp_basename( $path ),
				'url'  => (string) wp_get_attachment_url( $id ),
				'size' => $size,
				'path' => $path,
			);
		}

		if ( count( $files ) > self::MAX_FILES ) {
			/* translators: %s: number of files */
			return new \WP_Error( 'dealroot_files', sprintf( __( 'Up to %s files can go with one email.', 'dealroot' ), number_format_i18n( self::MAX_FILES ) ) );
		}

		if ( $bytes > self::MAX_BYTES ) {
			/* translators: %s: size, e.g. 15 MB */
			return new \WP_Error( 'dealroot_files', sprintf( __( 'The files are too large for one email: up to %s together.', 'dealroot' ), size_format( self::MAX_BYTES ) ) );
		}

		return $files;
	}

	/**
	 * Sends the answer of the lead screen by email, with files.
	 */
	public static function ajax_send() {
		check_ajax_referer( 'dealroot_quick_status', 'nonce' );

		if ( ! current_user_can( Admin::capability() ) ) {
			wp_send_json_error( array( 'message' => __( 'You are not allowed to edit leads.', 'dealroot' ) ), 403 );
		}

		$lead    = Leads::get( isset( $_POST['lead'] ) ? absint( $_POST['lead'] ) : 0 );
		$subject = isset( $_POST['subject'] ) ? sanitize_text_field( wp_unslash( $_POST['subject'] ) ) : '';
		$text    = isset( $_POST['text'] ) ? sanitize_textarea_field( wp_unslash( $_POST['text'] ) ) : '';
		$ids     = isset( $_POST['files'] ) ? array_map( 'absint', (array) wp_unslash( $_POST['files'] ) ) : array();
		$via     = isset( $_POST['via'] ) && 'ai' === $_POST['via'] ? 'ai' : 'reply';

		if ( ! $lead || ! is_email( $lead->email ) ) {
			wp_send_json_error( array( 'message' => __( 'This lead has no email address.', 'dealroot' ) ) );
		}

		if ( '' === trim( $text ) ) {
			wp_send_json_error( array( 'message' => __( 'Write the message first.', 'dealroot' ) ) );
		}

		$files = self::files( $ids );

		if ( is_wp_error( $files ) ) {
			wp_send_json_error( array( 'message' => $files->get_error_message() ) );
		}

		$subject = '' !== $subject ? $subject : Ai::in_locale( Ai::customer_locale( $lead ), fn() => __( 'Your enquiry', 'dealroot' ) );
		$sent    = Mail::customer( $lead->email, $subject, $text, array( 'attachments' => wp_list_pluck( $files, 'path' ) ) );

		if ( ! $sent ) {
			wp_send_json_error( array( 'message' => __( 'The email could not be sent. Check the email settings of your site.', 'dealroot' ) ) );
		}

		$kept = array_map(
			static function ( $file ) {
				unset( $file['path'] );
				return $file;
			},
			$files
		);

		$id = self::add(
			(int) $lead->id,
			'out',
			'email',
			$text,
			array(
				'subject' => $subject,
				'files'   => $kept,
			)
		);

		self::answered( $lead, $via );

		/** This action is documented in includes/class-inbox.php */
		do_action( 'dealroot_answer_sent', (int) $lead->id, $text );

		wp_send_json_success(
			array(
				/* translators: %s: email address */
				'message' => sprintf( __( 'Sent to %s.', 'dealroot' ), $lead->email ),
				'item'    => self::item_html( self::get( $id ) ),
				'status'  => Leads::get( (int) $lead->id )->status,
			)
		);
	}

	/**
	 * Notes an answer written in the email program or on WhatsApp, which Dealroot does not send.
	 */
	public static function ajax_logged() {
		check_ajax_referer( 'dealroot_quick_status', 'nonce' );

		if ( ! current_user_can( Admin::capability() ) ) {
			wp_send_json_error( null, 403 );
		}

		$lead    = Leads::get( isset( $_POST['lead'] ) ? absint( $_POST['lead'] ) : 0 );
		$channel = isset( $_POST['channel'] ) && 'whatsapp' === $_POST['channel'] ? 'whatsapp' : 'mail_app';
		$subject = isset( $_POST['subject'] ) ? sanitize_text_field( wp_unslash( $_POST['subject'] ) ) : '';
		$text    = isset( $_POST['text'] ) ? sanitize_textarea_field( wp_unslash( $_POST['text'] ) ) : '';
		$via     = isset( $_POST['via'] ) && 'ai' === $_POST['via'] ? 'ai' : 'reply';

		if ( ! $lead || '' === trim( $text ) ) {
			wp_send_json_error();
		}

		$id = self::add( (int) $lead->id, 'out', $channel, $text, array( 'subject' => 'mail_app' === $channel ? $subject : '' ) );

		self::answered( $lead, $via );

		/** This action is documented in includes/class-inbox.php */
		do_action( 'dealroot_answer_sent', (int) $lead->id, $text );

		wp_send_json_success(
			array(
				'item'   => self::item_html( self::get( $id ) ),
				'status' => Leads::get( (int) $lead->id )->status,
			)
		);
	}

	/**
	 * Takes an answer noted by hand out of the conversation, when it was not sent after all.
	 * Only answers written in the email program or on WhatsApp; what Dealroot sent stays.
	 */
	public static function ajax_unlog() {
		global $wpdb;

		check_ajax_referer( 'dealroot_quick_status', 'nonce' );

		if ( ! current_user_can( Admin::capability() ) ) {
			wp_send_json_error( null, 403 );
		}

		$message = self::get( isset( $_POST['message'] ) ? absint( $_POST['message'] ) : 0 );

		if ( ! $message || ! self::noted_by_hand( $message ) ) {
			wp_send_json_error();
		}

		$wpdb->delete( self::table(), array( 'id' => (int) $message->id ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching

		wp_send_json_success();
	}

	/**
	 * Whether an answer was written outside Dealroot and only noted here.
	 *
	 * @param object $message Message.
	 * @return bool
	 */
	private static function noted_by_hand( $message ) {
		return 'out' === $message->direction && in_array( $message->channel, array( 'mail_app', 'whatsapp' ), true );
	}

	/**
	 * A new lead that was answered is contacted.
	 *
	 * @param object $lead Lead.
	 * @param string $via  "ai" when the text came from the assistant, otherwise "reply".
	 */
	private static function answered( $lead, $via ) {
		if ( 'new' === $lead->status ) {
			Impact::answered( (int) $lead->id, $via );
			Leads::update( (int) $lead->id, array( 'status' => 'contacted' ) );
		} else {
			Leads::update( (int) $lead->id, array() );
		}
	}

	/**
	 * The last digits of a phone number, the same with or without the country code.
	 *
	 * @param string $phone Phone number.
	 * @return string
	 */
	private static function digits( $phone ) {
		return substr( (string) preg_replace( '/\D/', '', $phone ), -9 );
	}

	/**
	 * Date and time in the formats of the site.
	 *
	 * @param string $gmt Time in UTC.
	 * @return string
	 */
	private static function when( $gmt ) {
		return wp_date( get_option( 'date_format' ) . ' ' . get_option( 'time_format' ), strtotime( $gmt . ' UTC' ) );
	}

	/**
	 * One message.
	 *
	 * @param int $id Message ID.
	 * @return object|null
	 */
	public static function get( $id ) {
		global $wpdb;

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
		return $wpdb->get_row( $wpdb->prepare( 'SELECT * FROM %i WHERE id = %d', self::table(), (int) $id ) );
	}

	/**
	 * How a message was sent or came in.
	 *
	 * @param object $message Message.
	 * @return string
	 */
	private static function how( $message ) {
		$labels = array(
			'email'    => __( 'Email from Dealroot', 'dealroot' ),
			'mail_app' => __( 'Written in your email program', 'dealroot' ),
			'whatsapp' => __( 'WhatsApp', 'dealroot' ),
			'form'     => __( 'Form of your site', 'dealroot' ),
			'telegram' => __( 'Email, sent from Telegram', 'dealroot' ),
			'confirm'  => __( 'Automatic confirmation', 'dealroot' ),
			'offer'    => __( 'Offer by email', 'dealroot' ),
		);

		return $labels[ $message->channel ] ?? '';
	}

	/**
	 * One message in the conversation.
	 *
	 * @param object|null $message Message.
	 * @return string HTML.
	 */
	public static function item_html( $message ) {
		if ( ! $message ) {
			return '';
		}

		$user  = $message->user_id ? get_userdata( (int) $message->user_id ) : null;
		$who   = 'in' === $message->direction ? __( 'They wrote', 'dealroot' ) : ( $user ? $user->display_name : __( 'Dealroot', 'dealroot' ) );
		$files = (array) json_decode( (string) $message->files, true );

		ob_start();
		?>
		<li class="dealroot-thread__item dealroot-thread__item--<?php echo esc_attr( 'in' === $message->direction ? 'in' : 'out' ); ?>">
			<div class="dealroot-thread__meta">
				<strong><?php echo esc_html( $who ); ?></strong>
				<span><?php echo esc_html( self::how( $message ) ); ?></span>
				<time datetime="<?php echo esc_attr( gmdate( 'c', strtotime( $message->created_at . ' UTC' ) ) ); ?>"><?php echo esc_html( self::when( $message->created_at ) ); ?></time>
			</div>
			<?php if ( '' !== (string) $message->subject && 'form' !== $message->channel ) : ?>
				<p class="dealroot-thread__subject"><?php echo esc_html( $message->subject ); ?></p>
			<?php endif; ?>
			<div class="dealroot-thread__body"><?php echo nl2br( esc_html( (string) $message->body ) ); ?></div>
			<?php if ( self::noted_by_hand( $message ) ) : ?>
				<button type="button" class="dealroot-thread__remove" data-thread-remove="<?php echo (int) $message->id; ?>"><?php esc_html_e( 'Not sent? Remove', 'dealroot' ); ?></button>
			<?php endif; ?>
			<?php if ( $files ) : ?>
				<ul class="dealroot-thread__files">
					<?php foreach ( $files as $file ) : ?>
						<li><a href="<?php echo esc_url( (string) ( $file['url'] ?? '' ) ); ?>" target="_blank" rel="noopener noreferrer"><span class="dashicons dashicons-paperclip" aria-hidden="true"></span><?php echo esc_html( (string) ( $file['name'] ?? '' ) ); ?></a> <span class="dealroot-muted"><?php echo esc_html( size_format( (int) ( $file['size'] ?? 0 ) ) ); ?></span></li>
					<?php endforeach; ?>
				</ul>
			<?php endif; ?>
		</li>
		<?php
		return (string) ob_get_clean();
	}

	/**
	 * The conversation on the lead screen.
	 *
	 * @param object $lead Lead.
	 */
	public static function panel( $lead ) {
		$messages = self::for_lead( (int) $lead->id );
		?>
		<section class="dealroot-panel dealroot-thread" aria-labelledby="dealroot-thread-title" data-thread>
			<h2 id="dealroot-thread-title"><?php esc_html_e( 'Conversation', 'dealroot' ); ?></h2>
			<ol class="dealroot-thread__list" data-thread-list>
				<li class="dealroot-thread__item dealroot-thread__item--in">
					<div class="dealroot-thread__meta">
						<strong><?php esc_html_e( 'They wrote', 'dealroot' ); ?></strong>
						<?php /* translators: %s: name of the form */ ?>
						<span><?php echo esc_html( sprintf( __( 'Enquiry through “%s”', 'dealroot' ), '' !== (string) $lead->form_name ? $lead->form_name : __( 'Form', 'dealroot' ) ) ); ?></span>
						<time datetime="<?php echo esc_attr( gmdate( 'c', strtotime( $lead->created_at . ' UTC' ) ) ); ?>"><?php echo esc_html( self::when( $lead->created_at ) ); ?></time>
					</div>
					<?php $first = self::text_of( (array) json_decode( (string) $lead->fields, true ), (array) $lead ); ?>
					<?php if ( '' !== $first ) : ?>
						<div class="dealroot-thread__body"><?php echo nl2br( esc_html( wp_html_excerpt( $first, 600, '…' ) ) ); ?></div>
					<?php endif; ?>
					<p class="dealroot-thread__more"><a href="#dealroot-submission"><?php esc_html_e( 'See the enquiry', 'dealroot' ); ?></a></p>
				</li>
				<?php
				foreach ( $messages as $message ) {
					echo wp_kses( self::item_html( $message ), Kses::screen() );
				}
				?>
			</ol>
			<?php if ( ! $messages ) : ?>
				<p class="dealroot-muted" data-thread-empty><?php esc_html_e( 'What you answer from here is kept here, with the files you send. When the person writes again through a form of your site, it comes here too.', 'dealroot' ); ?></p>
			<?php endif; ?>
		</section>
		<?php
	}
}