<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * WordPress admin UI for the WordPress.org directory package.
 */
class DPSUPPORT_Admin {
	private $tickets;
	private $messages;
	private $attachments;
	private $activity;

	public function __construct(
		DPSUPPORT_Ticket_Repository $tickets,
		DPSUPPORT_Message_Repository $messages,
		DPSUPPORT_Attachment_Repository $attachments,
		DPSUPPORT_Activity_Repository $activity
	) {
		$this->tickets     = $tickets;
		$this->messages    = $messages;
		$this->attachments = $attachments;
		$this->activity    = $activity;
	}

	public function init() {
		add_action( 'admin_menu', array( $this, 'register_menu' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_assets' ) );
		add_action( 'admin_post_dpsupport_create_ticket', array( $this, 'handle_create_ticket' ) );
		add_action( 'admin_post_dpsupport_add_message', array( $this, 'handle_add_message' ) );
		add_action( 'admin_post_dpsupport_update_ticket', array( $this, 'handle_update_ticket' ) );
		add_action( 'admin_post_dpsupport_archive_ticket', array( $this, 'handle_archive_ticket' ) );
		add_action( 'admin_post_dpsupport_restore_ticket', array( $this, 'handle_restore_ticket' ) );
		add_action( 'admin_post_dpsupport_delete_ticket', array( $this, 'handle_delete_ticket' ) );
		add_action( 'admin_post_dpsupport_save_settings', array( $this, 'handle_save_settings' ) );
		add_action( 'admin_post_dpsupport_send_test_email', array( $this, 'handle_send_test_email' ) );
		add_action( 'admin_post_dpsupport_create_support_page', array( $this, 'handle_create_support_page' ) );
		add_action( 'admin_post_dpsupport_resend_guest_link', array( $this, 'handle_resend_guest_link' ) );
	}

	public function register_menu() {
		add_menu_page(
			__( '24laser Support Tickets', '24laser-support-tickets' ),
			__( 'Support', '24laser-support-tickets' ),
			'dpsupport_view_support',
			'dpsupport-support',
			array( $this, 'render_tickets_page' ),
			'dashicons-sos',
			56
		);

		add_submenu_page( 'dpsupport-support', __( 'Tickets', '24laser-support-tickets' ), __( 'Tickets', '24laser-support-tickets' ), 'dpsupport_view_support', 'dpsupport-support', array( $this, 'render_tickets_page' ) );
		add_submenu_page( 'dpsupport-support', __( 'Neues Ticket', '24laser-support-tickets' ), __( 'Neues Ticket', '24laser-support-tickets' ), 'dpsupport_manage_support', 'dpsupport-support-new', array( $this, 'render_new_ticket_page' ) );
		add_submenu_page( 'dpsupport-support', __( 'Statistiken', '24laser-support-tickets' ), __( 'Statistiken', '24laser-support-tickets' ), 'dpsupport_view_support', 'dpsupport-support-statistics', array( $this, 'render_statistics_page' ) );
		add_submenu_page( 'dpsupport-support', __( 'Einstellungen', '24laser-support-tickets' ), __( 'Einstellungen', '24laser-support-tickets' ), 'dpsupport_manage_settings', 'dpsupport-support-settings', array( $this, 'render_settings_page' ) );
	}

	public function enqueue_assets( $hook ) {
		if ( false === strpos( (string) $hook, 'dpsupport-support' ) ) {
			return;
		}
		wp_enqueue_style( 'dpsupport-admin', DPSUPPORT_URL . 'assets/css/admin.css', array(), DPSUPPORT_VERSION );
		wp_enqueue_script( 'dpsupport-admin', DPSUPPORT_URL . 'assets/js/admin.js', array(), DPSUPPORT_VERSION, true );
	}

	private function guard( $capability = 'dpsupport_view_support' ) {
		if ( ! current_user_can( $capability ) ) {
			wp_die( esc_html__( 'Du hast keine Berechtigung für diesen Bereich.', '24laser-support-tickets' ) );
		}
	}

	public function render_tickets_page() {
		$this->guard();
		$this->render_notice();

		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Read-only ticket navigation; capability checks are enforced before rendering.
		$ticket_id = isset( $_GET['ticket_id'] ) ? absint( $_GET['ticket_id'] ) : 0;
		if ( $ticket_id ) {
			$this->render_ticket_detail( $ticket_id );
			return;
		}

		// phpcs:disable WordPress.Security.NonceVerification.Recommended -- Read-only list filters/pagination; these values never mutate state.
		$status   = isset( $_GET['status'] ) ? sanitize_key( wp_unslash( $_GET['status'] ) ) : '';
		$priority = isset( $_GET['priority'] ) ? sanitize_key( wp_unslash( $_GET['priority'] ) ) : '';
		$category = isset( $_GET['category'] ) ? sanitize_key( wp_unslash( $_GET['category'] ) ) : '';
		$search   = isset( $_GET['s'] ) ? sanitize_text_field( wp_unslash( $_GET['s'] ) ) : '';
		$archive  = isset( $_GET['archive'] ) && 'archived' === sanitize_key( wp_unslash( $_GET['archive'] ) ) ? 'archived' : 'active';
		$paged    = max( 1, isset( $_GET['paged'] ) ? absint( $_GET['paged'] ) : 1 );
		// phpcs:enable WordPress.Security.NonceVerification.Recommended
		$per_page = 20;
		$args = compact( 'status', 'priority', 'category', 'search', 'archive', 'paged', 'per_page' );
		$tickets = $this->tickets->query( $args );
		$total   = $this->tickets->count( $args );
		$statuses   = $this->tickets->statuses();
		$priorities = $this->tickets->priorities();
		$categories = $this->tickets->categories();
		$sources = $this->activity->creation_sources( wp_list_pluck( $tickets, 'id' ) );
		?>
		<div class="wrap dpsupport-admin-wrap">
			<div class="dpsupport-page-head"><div><h1><?php esc_html_e( 'Support-Tickets', '24laser-support-tickets' ); ?></h1><p><?php esc_html_e( 'Kundenanfragen zentral lesen, beantworten und verwalten.', '24laser-support-tickets' ); ?></p></div><?php if ( current_user_can( 'dpsupport_manage_support' ) ) : ?><a class="button button-primary" href="<?php echo esc_url( admin_url( 'admin.php?page=dpsupport-support-new' ) ); ?>"><?php esc_html_e( 'Neues Ticket', '24laser-support-tickets' ); ?></a><?php endif; ?></div>

			<div class="dpsupport-tabs"><a class="<?php echo esc_attr( 'active' === $archive ? 'is-active' : '' ); ?>" href="<?php echo esc_url( admin_url( 'admin.php?page=dpsupport-support' ) ); ?>"><?php esc_html_e( 'Aktiv', '24laser-support-tickets' ); ?></a><a class="<?php echo esc_attr( 'archived' === $archive ? 'is-active' : '' ); ?>" href="<?php echo esc_url( admin_url( 'admin.php?page=dpsupport-support&archive=archived' ) ); ?>"><?php esc_html_e( 'Archiv', '24laser-support-tickets' ); ?></a></div>

			<form method="get" class="dpsupport-filter-bar">
				<input type="hidden" name="page" value="dpsupport-support"><input type="hidden" name="archive" value="<?php echo esc_attr( $archive ); ?>">
				<input type="search" name="s" value="<?php echo esc_attr( $search ); ?>" placeholder="<?php esc_attr_e( 'Ticket, Kunde oder E-Mail suchen …', '24laser-support-tickets' ); ?>">
				<select name="status"><option value=""><?php esc_html_e( 'Alle Status', '24laser-support-tickets' ); ?></option><?php foreach ( $statuses as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $status, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select>
				<select name="priority"><option value=""><?php esc_html_e( 'Alle Prioritäten', '24laser-support-tickets' ); ?></option><?php foreach ( $priorities as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $priority, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select>
				<select name="category"><option value=""><?php esc_html_e( 'Alle Kategorien', '24laser-support-tickets' ); ?></option><?php foreach ( $categories as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $category, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select>
				<button class="button"><?php esc_html_e( 'Filtern', '24laser-support-tickets' ); ?></button>
			</form>

			<div class="dpsupport-card dpsupport-table-card">
				<table class="widefat fixed striped dpsupport-ticket-table"><thead><tr><th><?php esc_html_e( 'Ticket', '24laser-support-tickets' ); ?></th><th><?php esc_html_e( 'Kunde', '24laser-support-tickets' ); ?></th><th><?php esc_html_e( 'Status', '24laser-support-tickets' ); ?></th><th><?php esc_html_e( 'Priorität', '24laser-support-tickets' ); ?></th><th><?php esc_html_e( 'Letzte Änderung', '24laser-support-tickets' ); ?></th></tr></thead><tbody>
				<?php if ( ! $tickets ) : ?><tr><td colspan="5"><div class="dpsupport-empty"><?php esc_html_e( 'Keine Tickets gefunden.', '24laser-support-tickets' ); ?></div></td></tr><?php else : foreach ( $tickets as $ticket ) : $source = $sources[ $ticket->id ] ?? 'unknown'; ?>
					<tr><td><a class="dpsupport-ticket-title" href="<?php echo esc_url( add_query_arg( array( 'page' => 'dpsupport-support', 'ticket_id' => $ticket->id ), admin_url( 'admin.php' ) ) ); ?>"><strong><?php echo esc_html( $ticket->subject ); ?></strong><span><?php echo esc_html( $ticket->ticket_number ); ?> · <?php echo esc_html( $this->source_label( $source ) ); ?></span></a></td><td><strong><?php echo esc_html( $ticket->customer_name ?: '—' ); ?></strong><br><small><?php echo esc_html( $ticket->customer_email ?: '—' ); ?></small></td><td><span class="dpsupport-status-badge is-<?php echo esc_attr( $ticket->status ); ?>"><?php echo esc_html( $statuses[ $ticket->status ] ?? $ticket->status ); ?></span></td><td><?php echo esc_html( $priorities[ $ticket->priority ] ?? $ticket->priority ); ?></td><td><?php echo esc_html( mysql2date( 'd.m.Y H:i', $ticket->updated_at ) ); ?></td></tr>
				<?php endforeach; endif; ?>
				</tbody></table>
			</div>
			<?php
			$total_pages = max( 1, (int) ceil( $total / $per_page ) );
			if ( $total_pages > 1 ) {
				echo '<div class="tablenav"><div class="tablenav-pages">' . wp_kses_post( paginate_links( array( 'base' => add_query_arg( 'paged', '%#%' ), 'format' => '', 'current' => $paged, 'total' => $total_pages, 'type' => 'plain' ) ) ) . '</div></div>';
			}
			?>
		</div>
		<?php
	}

	public function render_new_ticket_page() {
		$this->guard( 'dpsupport_manage_support' );
		$this->render_notice();
		$categories = $this->tickets->categories();
		$priorities = $this->tickets->priorities();
		?>
		<div class="wrap dpsupport-admin-wrap"><div class="dpsupport-page-head"><div><h1><?php esc_html_e( 'Neues Ticket', '24laser-support-tickets' ); ?></h1><p><?php esc_html_e( 'Lege eine neue Kundenanfrage direkt im Backend an.', '24laser-support-tickets' ); ?></p></div><a class="button" href="<?php echo esc_url( admin_url( 'admin.php?page=dpsupport-support' ) ); ?>"><?php esc_html_e( 'Zurück zu Tickets', '24laser-support-tickets' ); ?></a></div>
			<form method="post" enctype="multipart/form-data" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="dpsupport-card dpsupport-form-card"><input type="hidden" name="action" value="dpsupport_create_ticket"><?php wp_nonce_field( 'dpsupport_create_ticket' ); ?>
				<div class="dpsupport-form-grid"><label><span><?php esc_html_e( 'Kundenname', '24laser-support-tickets' ); ?></span><input type="text" name="customer_name" maxlength="190"></label><label><span><?php esc_html_e( 'E-Mail', '24laser-support-tickets' ); ?></span><input type="email" name="customer_email" maxlength="190"></label></div>
				<label><span><?php esc_html_e( 'Betreff', '24laser-support-tickets' ); ?> *</span><input type="text" name="subject" maxlength="255" required></label>
				<div class="dpsupport-form-grid"><label><span><?php esc_html_e( 'Kategorie', '24laser-support-tickets' ); ?></span><select name="category"><?php foreach ( $categories as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Priorität', '24laser-support-tickets' ); ?></span><select name="priority"><?php foreach ( $priorities as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( 'normal', $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label></div>
				<label><span><?php esc_html_e( 'Nachricht', '24laser-support-tickets' ); ?> *</span><textarea name="message" rows="9" maxlength="20000" required></textarea></label>
				<label><span><?php esc_html_e( 'Anhang (optional)', '24laser-support-tickets' ); ?></span><input type="file" name="dpsupport_attachment" accept=".jpg,.jpeg,.png,.webp,.pdf"><small><?php /* translators: %s: maximum upload size configured for this WordPress site. */ printf( esc_html__( 'JPG, PNG, WebP oder PDF. Maximale Dateigröße: %s.', '24laser-support-tickets' ), esc_html( size_format( DPSUPPORT_Upload_Handler::max_upload_size() ) ) ); ?></small></label>
				<div class="dpsupport-form-actions"><button class="button button-primary button-large"><?php esc_html_e( 'Ticket anlegen', '24laser-support-tickets' ); ?></button></div>
			</form>
		</div>
		<?php
	}

	private function render_ticket_detail( $ticket_id ) {
		$ticket = $this->tickets->get( $ticket_id );
		if ( ! $ticket ) {
			wp_die( esc_html__( 'Ticket wurde nicht gefunden.', '24laser-support-tickets' ) );
		}
		$messages = $this->messages->get_for_ticket( $ticket_id );
		$activity = $this->activity->get_for_ticket( $ticket_id );
		$statuses = $this->tickets->statuses();
		$priorities = $this->tickets->priorities();
		$categories = $this->tickets->categories();
		$source = $this->activity->creation_source( $ticket_id );
		$attachment_map = array();
		foreach ( (array) $this->attachments->get_for_ticket( $ticket_id ) as $attachment ) {
			$attachment_map[ absint( $attachment->message_id ) ][] = absint( $attachment->attachment_id );
		}
		$guest_url = empty( $ticket->customer_id ) && 'frontend_guest' === $source ? DPSUPPORT_Guest_Ticket_Access::ticket_url( $ticket ) : '';
		?>
		<div class="wrap dpsupport-admin-wrap"><div class="dpsupport-page-head"><div><a class="dpsupport-back-link" href="<?php echo esc_url( admin_url( 'admin.php?page=dpsupport-support' ) ); ?>">← <?php esc_html_e( 'Alle Tickets', '24laser-support-tickets' ); ?></a><h1><?php echo esc_html( $ticket->subject ); ?></h1><p><?php echo esc_html( $ticket->ticket_number ); ?> · <?php echo esc_html( $this->source_label( $source ) ); ?></p></div><?php if ( ! empty( $ticket->archived_at ) ) : ?><span class="dpsupport-status-badge"><?php esc_html_e( 'Archiviert', '24laser-support-tickets' ); ?></span><?php endif; ?></div>
			<div class="dpsupport-ticket-layout"><main>
				<div class="dpsupport-card dpsupport-ticket-summary"><div><small><?php esc_html_e( 'Kunde', '24laser-support-tickets' ); ?></small><strong><?php echo esc_html( $ticket->customer_name ?: '—' ); ?></strong><span><?php echo esc_html( $ticket->customer_email ?: '—' ); ?></span></div><div><small><?php esc_html_e( 'Status', '24laser-support-tickets' ); ?></small><strong><?php echo esc_html( $statuses[ $ticket->status ] ?? $ticket->status ); ?></strong></div><div><small><?php esc_html_e( 'Priorität', '24laser-support-tickets' ); ?></small><strong><?php echo esc_html( $priorities[ $ticket->priority ] ?? $ticket->priority ); ?></strong></div><div><small><?php esc_html_e( 'Kategorie', '24laser-support-tickets' ); ?></small><strong><?php echo esc_html( $categories[ $ticket->category ] ?? $ticket->category ); ?></strong></div></div>
				<?php if ( $guest_url ) : ?><div class="dpsupport-card dpsupport-guest-card"><h2><?php esc_html_e( 'Gastzugang', '24laser-support-tickets' ); ?></h2><p><?php esc_html_e( 'Dieser persönliche Link erlaubt dem Gast ausschließlich den Zugriff auf dieses Ticket.', '24laser-support-tickets' ); ?></p><div class="dpsupport-copy-row"><input type="text" readonly value="<?php echo esc_attr( $guest_url ); ?>"><button type="button" class="button dpsupport-copy-button" data-copy="<?php echo esc_attr( $guest_url ); ?>"><?php esc_html_e( 'Link kopieren', '24laser-support-tickets' ); ?></button><a class="button" target="_blank" rel="noopener noreferrer" href="<?php echo esc_url( $guest_url ); ?>"><?php esc_html_e( 'Gastansicht öffnen', '24laser-support-tickets' ); ?></a></div><?php if ( current_user_can( 'dpsupport_manage_support' ) ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="dpsupport_resend_guest_link"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_resend_guest_link_' . $ticket_id ); ?><button class="button"><?php esc_html_e( 'Zugangslink erneut per E-Mail senden', '24laser-support-tickets' ); ?></button></form><?php endif; ?></div><?php endif; ?>

				<div class="dpsupport-card"><h2><?php esc_html_e( 'Verlauf', '24laser-support-tickets' ); ?></h2><div class="dpsupport-thread">
				<?php if ( ! $messages ) : ?><p><?php esc_html_e( 'Noch keine Nachrichten.', '24laser-support-tickets' ); ?></p><?php else : foreach ( $messages as $message ) : $kind = ! empty( $message->is_internal ) ? 'internal' : $message->author_type; ?>
					<article class="dpsupport-message is-<?php echo esc_attr( $kind ); ?>"><header><strong><?php echo esc_html( $message->author_name ?: ( 'customer' === $message->author_type ? __( 'Kunde', '24laser-support-tickets' ) : __( 'Support', '24laser-support-tickets' ) ) ); ?></strong><span><?php echo esc_html( mysql2date( 'd.m.Y H:i', $message->created_at ) ); ?><?php if ( ! empty( $message->is_internal ) ) : ?> · <?php esc_html_e( 'Interne Notiz', '24laser-support-tickets' ); ?><?php endif; ?></span></header><div><?php echo wp_kses_post( wpautop( $message->body ) ); ?></div><?php if ( ! empty( $attachment_map[ $message->id ] ) ) : ?><footer><?php foreach ( $attachment_map[ $message->id ] as $attachment_id ) : $url = wp_get_attachment_url( $attachment_id ); if ( ! $url ) { continue; } ?><a class="dpsupport-attachment" href="<?php echo esc_url( $url ); ?>" target="_blank" rel="noopener noreferrer"><?php echo esc_html( get_the_title( $attachment_id ) ?: basename( get_attached_file( $attachment_id ) ) ); ?></a><?php endforeach; ?></footer><?php endif; ?></article>
				<?php endforeach; endif; ?></div></div>

				<?php if ( current_user_can( 'dpsupport_reply_support' ) && empty( $ticket->archived_at ) && 'closed' !== $ticket->status ) : ?><form method="post" enctype="multipart/form-data" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="dpsupport-card dpsupport-reply-card"><input type="hidden" name="action" value="dpsupport_add_message"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_add_message_' . $ticket_id ); ?><h2><?php esc_html_e( 'Antwort schreiben', '24laser-support-tickets' ); ?></h2><textarea name="message" rows="8" maxlength="20000" required></textarea><div class="dpsupport-reply-options"><label><input type="checkbox" name="is_internal" value="1"> <?php esc_html_e( 'Interne Notiz – für Kunden unsichtbar', '24laser-support-tickets' ); ?></label><label><?php esc_html_e( 'Anhang', '24laser-support-tickets' ); ?> <input type="file" name="dpsupport_attachment" accept=".jpg,.jpeg,.png,.webp,.pdf"></label></div><button class="button button-primary button-large"><?php esc_html_e( 'Antwort speichern', '24laser-support-tickets' ); ?></button></form><?php endif; ?>
			</main><aside>
				<?php if ( current_user_can( 'dpsupport_manage_support' ) ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="dpsupport-card"><input type="hidden" name="action" value="dpsupport_update_ticket"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_update_ticket_' . $ticket_id ); ?><h2><?php esc_html_e( 'Ticketdaten', '24laser-support-tickets' ); ?></h2><label><span><?php esc_html_e( 'Kundenname', '24laser-support-tickets' ); ?></span><input type="text" name="customer_name" value="<?php echo esc_attr( $ticket->customer_name ); ?>"></label><label><span><?php esc_html_e( 'E-Mail', '24laser-support-tickets' ); ?></span><input type="email" name="customer_email" value="<?php echo esc_attr( $ticket->customer_email ); ?>"></label><label><span><?php esc_html_e( 'Betreff', '24laser-support-tickets' ); ?></span><input type="text" name="subject" value="<?php echo esc_attr( $ticket->subject ); ?>"></label><label><span><?php esc_html_e( 'Status', '24laser-support-tickets' ); ?></span><select name="status"><?php foreach ( $statuses as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $ticket->status, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Priorität', '24laser-support-tickets' ); ?></span><select name="priority"><?php foreach ( $priorities as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $ticket->priority, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Kategorie', '24laser-support-tickets' ); ?></span><select name="category"><?php foreach ( $categories as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( $ticket->category, $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><button class="button button-primary"><?php esc_html_e( 'Speichern', '24laser-support-tickets' ); ?></button></form><?php endif; ?>
				<div class="dpsupport-card"><h2><?php esc_html_e( 'Aktionen', '24laser-support-tickets' ); ?></h2><?php if ( empty( $ticket->archived_at ) ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="dpsupport_archive_ticket"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_archive_ticket_' . $ticket_id ); ?><button class="button"><?php esc_html_e( 'Archivieren', '24laser-support-tickets' ); ?></button></form><?php else : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="dpsupport_restore_ticket"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_restore_ticket_' . $ticket_id ); ?><button class="button"><?php esc_html_e( 'Wiederherstellen', '24laser-support-tickets' ); ?></button></form><?php endif; ?><?php if ( current_user_can( 'dpsupport_delete_tickets' ) ) : ?><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" onsubmit="return confirm('<?php echo esc_js( __( 'Ticket inklusive Nachrichten und Anhängen dauerhaft löschen?', '24laser-support-tickets' ) ); ?>');"><input type="hidden" name="action" value="dpsupport_delete_ticket"><input type="hidden" name="ticket_id" value="<?php echo esc_attr( $ticket_id ); ?>"><?php wp_nonce_field( 'dpsupport_delete_ticket_' . $ticket_id ); ?><button class="button button-link-delete"><?php esc_html_e( 'Dauerhaft löschen', '24laser-support-tickets' ); ?></button></form><?php endif; ?></div>
				<div class="dpsupport-card"><h2><?php esc_html_e( 'Aktivität', '24laser-support-tickets' ); ?></h2><div class="dpsupport-activity"><?php foreach ( array_reverse( $activity ) as $row ) : ?><div><span><?php echo esc_html( mysql2date( 'd.m.Y H:i', $row->created_at ) ); ?></span><p><?php echo esc_html( $row->message ?: $row->action ); ?></p></div><?php endforeach; ?></div></div>
			</aside></div>
		</div>
		<?php
	}

	public function render_statistics_page() {
		$this->guard();
		$stats = ( new DPSUPPORT_Statistics() )->overview( 30 );
		?>
		<div class="wrap dpsupport-admin-wrap"><div class="dpsupport-page-head"><div><h1><?php esc_html_e( 'Statistiken', '24laser-support-tickets' ); ?></h1><p><?php esc_html_e( 'Grundlegender Überblick über deine Support-Tickets.', '24laser-support-tickets' ); ?></p></div></div><div class="dpsupport-metric-grid"><div class="dpsupport-metric"><span><?php esc_html_e( 'Aktive Tickets', '24laser-support-tickets' ); ?></span><strong><?php echo esc_html( $stats['counts']['active'] ); ?></strong></div><div class="dpsupport-metric"><span><?php esc_html_e( 'Neu', '24laser-support-tickets' ); ?></span><strong><?php echo esc_html( $stats['counts']['new'] ); ?></strong></div><div class="dpsupport-metric"><span><?php esc_html_e( 'Offen', '24laser-support-tickets' ); ?></span><strong><?php echo esc_html( $stats['counts']['open'] ); ?></strong></div><div class="dpsupport-metric"><span><?php esc_html_e( 'Gelöst/Geschlossen', '24laser-support-tickets' ); ?></span><strong><?php echo esc_html( $stats['counts']['resolved'] ); ?></strong></div><div class="dpsupport-metric"><span><?php esc_html_e( 'Neue Tickets / 30 Tage', '24laser-support-tickets' ); ?></span><strong><?php echo esc_html( $stats['counts']['period'] ); ?></strong></div></div><div class="dpsupport-card"><h2><?php esc_html_e( 'Neue Tickets der letzten 30 Tage', '24laser-support-tickets' ); ?></h2><div class="dpsupport-mini-bars"><?php $max = max( 1, max( array_column( $stats['daily'], 'value' ) ) ); foreach ( $stats['daily'] as $day ) : ?><div title="<?php echo esc_attr( $day['label'] . ': ' . $day['value'] ); ?>"><span style="height:<?php echo esc_attr( max( 3, round( ( $day['value'] / $max ) * 100 ) ) ); ?>%"></span><small><?php echo esc_html( $day['label'] ); ?></small></div><?php endforeach; ?></div></div></div>
		<?php
	}

	public function render_settings_page() {
		$this->guard( 'dpsupport_manage_settings' );
		$this->render_notice();
		$categories = $this->tickets->categories();
		$category_lines = array();
		foreach ( $categories as $key => $label ) {
			$category_lines[] = $key . ' | ' . $label;
		}
		$page_id = absint( get_option( DPSUPPORT_Guest_Ticket_Access::OPTION_PAGE_ID, 0 ) );
		$page_url = $page_id ? get_permalink( $page_id ) : '';
		?>
		<div class="wrap dpsupport-admin-wrap"><div class="dpsupport-page-head"><div><h1><?php esc_html_e( '24laser Support Einstellungen', '24laser-support-tickets' ); ?></h1><p><?php esc_html_e( 'Lokale Ticketverwaltung mit WordPress-Mailversand, Kundenportal und Frontendformular.', '24laser-support-tickets' ); ?></p></div></div>
			<form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>" class="dpsupport-settings-grid"><input type="hidden" name="action" value="dpsupport_save_settings"><?php wp_nonce_field( 'dpsupport_save_settings' ); ?>
				<section class="dpsupport-card"><h2><?php esc_html_e( 'Benachrichtigungen', '24laser-support-tickets' ); ?></h2><label><span><?php esc_html_e( 'Support-Empfänger', '24laser-support-tickets' ); ?></span><input type="text" name="notification_email" value="<?php echo esc_attr( get_option( 'dpsupport_notification_email', get_option( 'admin_email', '' ) ) ); ?>"><small><?php esc_html_e( 'Eine oder mehrere E-Mail-Adressen, getrennt mit Komma.', '24laser-support-tickets' ); ?></small></label><label><span><?php esc_html_e( 'Absendername', '24laser-support-tickets' ); ?></span><input type="text" name="from_name" value="<?php echo esc_attr( get_option( 'dpsupport_support_from_name', get_bloginfo( 'name' ) . ' Support' ) ); ?>"></label><label><span><?php esc_html_e( 'Absender-E-Mail', '24laser-support-tickets' ); ?></span><input type="email" name="from_email" value="<?php echo esc_attr( get_option( 'dpsupport_support_from_email', get_option( 'admin_email', '' ) ) ); ?>"></label><label><span><?php esc_html_e( 'Reply-To', '24laser-support-tickets' ); ?></span><input type="email" name="reply_to_email" value="<?php echo esc_attr( get_option( 'dpsupport_support_reply_to_email', '' ) ); ?>"></label><div class="dpsupport-checks"><label><input type="checkbox" name="notify_staff_new" value="yes" <?php checked( 'yes', get_option( 'dpsupport_notify_staff_new_ticket', 'yes' ) ); ?>> <?php esc_html_e( 'Support bei neuem Ticket informieren', '24laser-support-tickets' ); ?></label><label><input type="checkbox" name="notify_staff_reply" value="yes" <?php checked( 'yes', get_option( 'dpsupport_notify_staff_customer_reply', 'yes' ) ); ?>> <?php esc_html_e( 'Support bei Kundenantwort informieren', '24laser-support-tickets' ); ?></label><label><input type="checkbox" name="notify_customer_created" value="yes" <?php checked( 'yes', get_option( 'dpsupport_notify_customer_ticket_created', 'yes' ) ); ?>> <?php esc_html_e( 'Kunden den Ticketeingang bestätigen', '24laser-support-tickets' ); ?></label><label><input type="checkbox" name="notify_customer_reply" value="yes" <?php checked( 'yes', get_option( 'dpsupport_notify_customer_staff_reply', 'yes' ) ); ?>> <?php esc_html_e( 'Kunden bei Supportantwort informieren', '24laser-support-tickets' ); ?></label></div></section>

				<section class="dpsupport-card"><h2><?php esc_html_e( 'Ticket-Standardwerte', '24laser-support-tickets' ); ?></h2><label><span><?php esc_html_e( 'Standardstatus', '24laser-support-tickets' ); ?></span><select name="default_status"><?php foreach ( $this->tickets->statuses() as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( get_option( 'dpsupport_default_status', 'new' ), $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Standardpriorität', '24laser-support-tickets' ); ?></span><select name="default_priority"><?php foreach ( $this->tickets->priorities() as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( get_option( 'dpsupport_default_priority', 'normal' ), $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Standardkategorie', '24laser-support-tickets' ); ?></span><select name="default_category"><?php foreach ( $categories as $key => $label ) : ?><option value="<?php echo esc_attr( $key ); ?>" <?php selected( get_option( 'dpsupport_default_category', 'allgemein' ), $key ); ?>><?php echo esc_html( $label ); ?></option><?php endforeach; ?></select></label><label><span><?php esc_html_e( 'Kategorien', '24laser-support-tickets' ); ?></span><textarea name="categories" rows="8"><?php echo esc_textarea( implode( "\n", $category_lines ) ); ?></textarea><small><?php esc_html_e( 'Eine Zeile pro Kategorie: slug | Bezeichnung', '24laser-support-tickets' ); ?></small></label></section>

				<section class="dpsupport-card"><h2><?php esc_html_e( 'Frontend-Supportformular', '24laser-support-tickets' ); ?></h2><div class="dpsupport-checks"><label><input type="checkbox" name="frontend_enabled" value="yes" <?php checked( 'yes', get_option( 'dpsupport_frontend_form_enabled', 'yes' ) ); ?>> <?php esc_html_e( 'Formular aktivieren', '24laser-support-tickets' ); ?></label><label><input type="checkbox" name="frontend_guests" value="yes" <?php checked( 'yes', get_option( 'dpsupport_frontend_form_guests', 'yes' ) ); ?>> <?php esc_html_e( 'Anfragen ohne Benutzerkonto erlauben', '24laser-support-tickets' ); ?></label></div><label><span><?php esc_html_e( 'Überschrift', '24laser-support-tickets' ); ?></span><input type="text" name="frontend_title" value="<?php echo esc_attr( get_option( 'dpsupport_frontend_form_title', __( 'Wie können wir helfen?', '24laser-support-tickets' ) ) ); ?>"></label><label><span><?php esc_html_e( 'Einleitung', '24laser-support-tickets' ); ?></span><textarea name="frontend_intro" rows="4"><?php echo esc_textarea( get_option( 'dpsupport_frontend_form_intro', __( 'Beschreibe deine Frage oder dein Problem. Unser Support-Team erhält daraus direkt ein neues Ticket.', '24laser-support-tickets' ) ) ); ?></textarea></label><label><span><?php esc_html_e( 'Erfolgsmeldung', '24laser-support-tickets' ); ?></span><input type="text" name="frontend_success" value="<?php echo esc_attr( get_option( 'dpsupport_frontend_form_success', __( 'Vielen Dank. Deine Support-Anfrage wurde erfolgreich übermittelt.', '24laser-support-tickets' ) ) ); ?>"></label><div class="dpsupport-code-box"><code>[dpsupport_form]</code><span><?php esc_html_e( 'Diesen Shortcode auf einer beliebigen Seite einfügen.', '24laser-support-tickets' ); ?></span></div><?php if ( $page_url ) : ?><p><a class="button" target="_blank" rel="noopener noreferrer" href="<?php echo esc_url( $page_url ); ?>"><?php esc_html_e( 'Supportseite öffnen', '24laser-support-tickets' ); ?></a></p><?php endif; ?></section>

				<div class="dpsupport-settings-save"><button class="button button-primary button-large"><?php esc_html_e( 'Einstellungen speichern', '24laser-support-tickets' ); ?></button></div>
			</form>
			<div class="dpsupport-card dpsupport-tools-card"><h2><?php esc_html_e( 'Werkzeuge', '24laser-support-tickets' ); ?></h2><div class="dpsupport-tools-row"><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="dpsupport_send_test_email"><?php wp_nonce_field( 'dpsupport_send_test_email' ); ?><input type="email" name="recipient" value="<?php echo esc_attr( get_option( 'admin_email', '' ) ); ?>" required><button class="button"><?php esc_html_e( 'Test-E-Mail senden', '24laser-support-tickets' ); ?></button></form><form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>"><input type="hidden" name="action" value="dpsupport_create_support_page"><?php wp_nonce_field( 'dpsupport_create_support_page' ); ?><button class="button"><?php esc_html_e( 'Supportseite automatisch erstellen', '24laser-support-tickets' ); ?></button></form></div></div>
		</div>
		<?php
	}

	public function handle_create_ticket() {
		$this->guard( 'dpsupport_manage_support' );
		check_admin_referer( 'dpsupport_create_ticket' );
		$subject = sanitize_text_field( wp_unslash( $_POST['subject'] ?? '' ) );
		$message = wp_kses_post( wp_unslash( $_POST['message'] ?? '' ) );
		if ( '' === trim( $subject ) || '' === trim( wp_strip_all_tags( $message ) ) ) {
			$this->redirect_new( 'error', __( 'Betreff und Nachricht sind erforderlich.', '24laser-support-tickets' ) );
		}
		$ticket_id = $this->tickets->create( array( 'customer_name' => sanitize_text_field( wp_unslash( $_POST['customer_name'] ?? '' ) ), 'customer_email' => sanitize_email( wp_unslash( $_POST['customer_email'] ?? '' ) ), 'subject' => $subject, 'category' => sanitize_key( wp_unslash( $_POST['category'] ?? '' ) ), 'status' => 'new', 'priority' => sanitize_key( wp_unslash( $_POST['priority'] ?? 'normal' ) ) ) );
		if ( is_wp_error( $ticket_id ) ) {
			$this->redirect_new( 'error', $ticket_id->get_error_message() );
		}
		$message_id = $this->messages->create( $ticket_id, array( 'author_type' => 'staff', 'author_user_id' => get_current_user_id(), 'body' => $message, 'is_internal' => 0 ) );
		if ( is_wp_error( $message_id ) ) {
			$this->tickets->delete_permanently( $ticket_id );
			$this->redirect_new( 'error', $message_id->get_error_message() );
		}
		$this->activity->add( $ticket_id, 'ticket_created', __( 'Ticket wurde im Backend erstellt.', '24laser-support-tickets' ) );
		$this->handle_upload( $ticket_id, $message_id );
		DPSUPPORT_Notifications::notify_customer_ticket_created( $ticket_id, $message_id, false );
		do_action( 'dpsupport_ticket_created', $ticket_id, 'backend' );
		$this->redirect_ticket( $ticket_id, 'success', __( 'Ticket wurde angelegt.', '24laser-support-tickets' ) );
	}

	public function handle_add_message() {
		$this->guard( 'dpsupport_reply_support' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_add_message_' . $ticket_id );
		$ticket = $this->tickets->get( $ticket_id );
		if ( ! $ticket ) {
			$this->redirect_list( 'error', __( 'Ticket wurde nicht gefunden.', '24laser-support-tickets' ) );
		}
		$body = wp_kses_post( wp_unslash( $_POST['message'] ?? '' ) );
		if ( '' === trim( wp_strip_all_tags( $body ) ) ) {
			$this->redirect_ticket( $ticket_id, 'error', __( 'Bitte gib eine Nachricht ein.', '24laser-support-tickets' ) );
		}
		$is_internal = ! empty( $_POST['is_internal'] );
		$body = DPSUPPORT_Workflow::prepare_staff_message( $body, $ticket, $is_internal, get_current_user_id() );
		$message_id = $this->messages->create( $ticket_id, array( 'author_type' => 'staff', 'author_user_id' => get_current_user_id(), 'body' => $body, 'is_internal' => $is_internal ? 1 : 0 ) );
		if ( is_wp_error( $message_id ) ) {
			$this->redirect_ticket( $ticket_id, 'error', $message_id->get_error_message() );
		}
		$this->tickets->touch( $ticket_id );
		$this->activity->add( $ticket_id, $is_internal ? 'internal_note' : 'staff_reply', $is_internal ? __( 'Interne Notiz hinzugefügt.', '24laser-support-tickets' ) : __( 'Support hat geantwortet.', '24laser-support-tickets' ) );
		$this->handle_upload( $ticket_id, $message_id );
		if ( ! $is_internal ) {
			DPSUPPORT_Notifications::notify_customer_staff_reply( $ticket_id, $message_id );
			do_action( 'dpsupport_staff_replied', $ticket_id, $message_id );
		}
		$this->redirect_ticket( $ticket_id, 'success', __( 'Nachricht wurde gespeichert.', '24laser-support-tickets' ) );
	}

	public function handle_update_ticket() {
		$this->guard( 'dpsupport_manage_support' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_update_ticket_' . $ticket_id );
		$ok = $this->tickets->update( $ticket_id, array( 'customer_name' => sanitize_text_field( wp_unslash( $_POST['customer_name'] ?? '' ) ), 'customer_email' => sanitize_email( wp_unslash( $_POST['customer_email'] ?? '' ) ), 'subject' => sanitize_text_field( wp_unslash( $_POST['subject'] ?? '' ) ), 'status' => sanitize_key( wp_unslash( $_POST['status'] ?? '' ) ), 'priority' => sanitize_key( wp_unslash( $_POST['priority'] ?? '' ) ), 'category' => sanitize_key( wp_unslash( $_POST['category'] ?? '' ) ) ) );
		if ( $ok ) {
			$this->activity->add( $ticket_id, 'ticket_updated', __( 'Ticketdaten wurden aktualisiert.', '24laser-support-tickets' ) );
		}
		$this->redirect_ticket( $ticket_id, $ok ? 'success' : 'error', $ok ? __( 'Ticket wurde gespeichert.', '24laser-support-tickets' ) : __( 'Ticket konnte nicht gespeichert werden.', '24laser-support-tickets' ) );
	}

	public function handle_archive_ticket() {
		$this->guard( 'dpsupport_manage_support' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_archive_ticket_' . $ticket_id );
		$this->tickets->archive( $ticket_id );
		$this->activity->add( $ticket_id, 'archived', __( 'Ticket wurde archiviert.', '24laser-support-tickets' ) );
		$this->redirect_list( 'success', __( 'Ticket wurde archiviert.', '24laser-support-tickets' ) );
	}

	public function handle_restore_ticket() {
		$this->guard( 'dpsupport_manage_support' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_restore_ticket_' . $ticket_id );
		$this->tickets->restore( $ticket_id );
		$this->activity->add( $ticket_id, 'restored', __( 'Ticket wurde wiederhergestellt.', '24laser-support-tickets' ) );
		$this->redirect_ticket( $ticket_id, 'success', __( 'Ticket wurde wiederhergestellt.', '24laser-support-tickets' ) );
	}

	public function handle_delete_ticket() {
		$this->guard( 'dpsupport_delete_tickets' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_delete_ticket_' . $ticket_id );
		foreach ( $this->attachments->get_attachment_ids_for_ticket( $ticket_id ) as $attachment_id ) {
			wp_delete_attachment( $attachment_id, true );
		}
		$this->tickets->delete_permanently( $ticket_id );
		$this->redirect_list( 'success', __( 'Ticket wurde dauerhaft gelöscht.', '24laser-support-tickets' ), 'archived' );
	}

	public function handle_save_settings() {
		$this->guard( 'dpsupport_manage_settings' );
		check_admin_referer( 'dpsupport_save_settings' );
		update_option( 'dpsupport_notification_email', sanitize_text_field( wp_unslash( $_POST['notification_email'] ?? '' ) ) );
		update_option( 'dpsupport_support_from_name', sanitize_text_field( wp_unslash( $_POST['from_name'] ?? '' ) ) );
		update_option( 'dpsupport_support_from_email', sanitize_email( wp_unslash( $_POST['from_email'] ?? '' ) ) );
		update_option( 'dpsupport_support_reply_to_email', sanitize_email( wp_unslash( $_POST['reply_to_email'] ?? '' ) ) );
		update_option( 'dpsupport_notify_staff_new_ticket', ! empty( $_POST['notify_staff_new'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_notify_staff_customer_reply', ! empty( $_POST['notify_staff_reply'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_notify_customer_ticket_created', ! empty( $_POST['notify_customer_created'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_notify_customer_staff_reply', ! empty( $_POST['notify_customer_reply'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_default_status', $this->tickets->sanitize_status( sanitize_key( wp_unslash( $_POST['default_status'] ?? 'new' ) ) ) );
		update_option( 'dpsupport_default_priority', $this->tickets->sanitize_priority( sanitize_key( wp_unslash( $_POST['default_priority'] ?? 'normal' ) ) ) );

		$categories = array();
		$raw_lines = preg_split( '/\r\n|\r|\n/', sanitize_textarea_field( wp_unslash( $_POST['categories'] ?? '' ) ) );
		foreach ( (array) $raw_lines as $line ) {
			$parts = array_map( 'trim', explode( '|', $line, 2 ) );
			$key   = sanitize_key( $parts[0] ?? '' );
			$label = sanitize_text_field( $parts[1] ?? '' );
			if ( $key && $label ) {
				$categories[ $key ] = $label;
			}
		}
		if ( ! $categories ) {
			$categories = array( 'allgemein' => __( 'Allgemein', '24laser-support-tickets' ), 'sonstiges' => __( 'Sonstiges', '24laser-support-tickets' ) );
		}
		update_option( 'dpsupport_categories', $categories );
		$default_category = sanitize_key( wp_unslash( $_POST['default_category'] ?? 'allgemein' ) );
		update_option( 'dpsupport_default_category', isset( $categories[ $default_category ] ) ? $default_category : array_key_first( $categories ) );
		update_option( 'dpsupport_frontend_form_enabled', ! empty( $_POST['frontend_enabled'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_frontend_form_guests', ! empty( $_POST['frontend_guests'] ) ? 'yes' : 'no' );
		update_option( 'dpsupport_frontend_form_title', sanitize_text_field( wp_unslash( $_POST['frontend_title'] ?? '' ) ) );
		update_option( 'dpsupport_frontend_form_intro', sanitize_textarea_field( wp_unslash( $_POST['frontend_intro'] ?? '' ) ) );
		update_option( 'dpsupport_frontend_form_success', sanitize_text_field( wp_unslash( $_POST['frontend_success'] ?? '' ) ) );
		$this->redirect_settings( 'success', __( 'Einstellungen wurden gespeichert.', '24laser-support-tickets' ) );
	}

	public function handle_send_test_email() {
		$this->guard( 'dpsupport_manage_settings' );
		check_admin_referer( 'dpsupport_send_test_email' );
		$result = DPSUPPORT_Notifications::send_test_email( sanitize_email( wp_unslash( $_POST['recipient'] ?? '' ) ) );
		$this->redirect_settings( ! empty( $result['sent'] ) ? 'success' : 'error', $result['message'] ?? __( 'Test abgeschlossen.', '24laser-support-tickets' ) );
	}

	public function handle_create_support_page() {
		$this->guard( 'dpsupport_manage_settings' );
		check_admin_referer( 'dpsupport_create_support_page' );
		$page_id = absint( get_option( DPSUPPORT_Guest_Ticket_Access::OPTION_PAGE_ID, 0 ) );
		if ( $page_id && 'trash' !== get_post_status( $page_id ) ) {
			$this->redirect_settings( 'notice', __( 'Es ist bereits eine Supportseite hinterlegt.', '24laser-support-tickets' ) );
		}
		$page_id = wp_insert_post( array( 'post_title' => __( 'Support', '24laser-support-tickets' ), 'post_content' => '[dpsupport_form]', 'post_status' => 'publish', 'post_type' => 'page' ), true );
		if ( is_wp_error( $page_id ) ) {
			$this->redirect_settings( 'error', $page_id->get_error_message() );
		}
		update_option( DPSUPPORT_Guest_Ticket_Access::OPTION_PAGE_ID, absint( $page_id ) );
		DPSUPPORT_Guest_Ticket_Access::remember_current_page( get_permalink( $page_id ) );
		$this->redirect_settings( 'success', __( 'Supportseite wurde erstellt.', '24laser-support-tickets' ) );
	}

	public function handle_resend_guest_link() {
		$this->guard( 'dpsupport_manage_support' );
		$ticket_id = absint( $_POST['ticket_id'] ?? 0 );
		check_admin_referer( 'dpsupport_resend_guest_link_' . $ticket_id );
		$ticket = $this->tickets->get( $ticket_id );
		if ( ! $ticket || ! empty( $ticket->customer_id ) || 'frontend_guest' !== $this->activity->creation_source( $ticket_id ) ) {
			$this->redirect_ticket( $ticket_id, 'error', __( 'Gastzugang ist für dieses Ticket nicht verfügbar.', '24laser-support-tickets' ) );
		}
		$result = DPSUPPORT_Notifications::send_guest_access_link_detailed( $ticket_id );
		if ( ! empty( $result['sent'] ) ) {
			$this->activity->add( $ticket_id, 'guest_access_resent', __( 'Persönlicher Gastzugangslink wurde erneut per E-Mail gesendet.', '24laser-support-tickets' ) );
		}
		$this->redirect_ticket( $ticket_id, ! empty( $result['sent'] ) ? 'success' : 'error', $result['message'] ?? __( 'Versand abgeschlossen.', '24laser-support-tickets' ) );
	}

	private function handle_upload( $ticket_id, $message_id ) {
		return DPSUPPORT_Upload_Handler::handle( $ticket_id, $message_id, $this->attachments );
	}

	private function source_label( $source ) {
		$labels = array( 'backend' => __( 'Backend', '24laser-support-tickets' ), 'customer_portal' => __( 'Kundenkonto', '24laser-support-tickets' ), 'frontend_customer' => __( 'Frontend · Kunde', '24laser-support-tickets' ), 'frontend_guest' => __( 'Frontend · Gast', '24laser-support-tickets' ), 'unknown' => __( 'Unbekannt', '24laser-support-tickets' ) );
		return $labels[ $source ] ?? $labels['unknown'];
	}

	private function render_notice() {
		// phpcs:disable WordPress.Security.NonceVerification.Recommended -- Read-only flash-message parameters generated by the plugin after a safe redirect.
		$type = isset( $_GET['dpsupport_notice_type'] ) ? sanitize_key( wp_unslash( $_GET['dpsupport_notice_type'] ) ) : '';
		$text = isset( $_GET['dpsupport_notice'] ) ? sanitize_text_field( wp_unslash( $_GET['dpsupport_notice'] ) ) : '';
		// phpcs:enable WordPress.Security.NonceVerification.Recommended
		if ( ! $text ) {
			return;
		}
		$class = 'error' === $type ? 'notice-error' : ( 'notice' === $type ? 'notice-warning' : 'notice-success' );
		echo '<div class="notice ' . esc_attr( $class ) . ' is-dismissible"><p>' . esc_html( $text ) . '</p></div>';
	}

	private function notice_args( $type, $message ) {
		return array( 'dpsupport_notice_type' => sanitize_key( $type ), 'dpsupport_notice' => sanitize_text_field( $message ) );
	}

	private function redirect_ticket( $ticket_id, $type, $message ) {
		wp_safe_redirect( add_query_arg( array_merge( array( 'page' => 'dpsupport-support', 'ticket_id' => absint( $ticket_id ) ), $this->notice_args( $type, $message ) ), admin_url( 'admin.php' ) ) );
		exit;
	}

	private function redirect_list( $type, $message, $archive = 'active' ) {
		$args = array_merge( array( 'page' => 'dpsupport-support' ), $this->notice_args( $type, $message ) );
		if ( 'archived' === $archive ) {
			$args['archive'] = 'archived';
		}
		wp_safe_redirect( add_query_arg( $args, admin_url( 'admin.php' ) ) );
		exit;
	}

	private function redirect_new( $type, $message ) {
		wp_safe_redirect( add_query_arg( array_merge( array( 'page' => 'dpsupport-support-new' ), $this->notice_args( $type, $message ) ), admin_url( 'admin.php' ) ) );
		exit;
	}

	private function redirect_settings( $type, $message ) {
		wp_safe_redirect( add_query_arg( array_merge( array( 'page' => 'dpsupport-support-settings' ), $this->notice_args( $type, $message ) ), admin_url( 'admin.php' ) ) );
		exit;
	}
}