<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Returns the settings index used by the admin search box.
 *
 * @return array
 */
function cwp_ai_shell_index() {
	$rows     = array(
		array( 'home', '', 'Home', 'overview dashboard start checklist summary' ),
		array( 'analytics', '', 'Analytics overview', 'stats report numbers clicks chats messages forms' ),
		array( 'performance', '', 'Site speed', 'speed performance slow load time page speed impact test' ),
		array( 'settings', '', 'Switch the chatbot on or off', 'enable disable hide turn off on' ),
		array( 'settings', '', 'Who can see it', 'visibility admins everyone live test mode' ),
		array( 'settings', '', 'Where it appears', 'pages posts selected except targeting show hide' ),
		array( 'usage', '', 'Your data and account', 'account data database move export import' ),
		array( 'analytics/report', '', 'Monthly report', 'report monthly email summary what to add' ),
		array( 'usage', '', 'Report service address', 'service url connection test advanced' ),
		array( 'knowledge', 'all', 'All entries', 'questions answers list edit delete knowledge' ),
		array( 'knowledge', '', 'Add questions and answers', 'faq question answer add new import csv keywords other words' ),
		array( 'vector', '', 'Test answers', 'search test score match try teach' ),
		array( 'appearance', 'theme', 'Theme and colour', 'colour color theme light dark mode' ),
		array( 'appearance', 'brand', 'Name and avatar', 'name tagline avatar mascot image flag' ),
		array( 'appearance', 'launcher', 'Chat button', 'launcher ring button corner teaser greeting' ),
		array( 'appearance', 'sound', 'Sound', 'sound chime volume mute' ),
		array( 'appearance', 'window', 'Chat window', 'size wide standard full backdrop typing voice' ),
		array( 'appearance', 'promos', 'Announcements', 'marquee announcements cards' ),
		array( 'form', '', 'Contact form', 'contact form fields shortcode plugin quote' ),
		array( 'leads', '', 'Enquiries', 'leads enquiries submissions entries' ),
		array( 'transfer', 'move', 'Move to another site', 'export import backup migrate' ),
	);
	$rows     = apply_filters( 'cwp_ai_shell_index_rows', $rows );
	$sections = cwp_ai_sections();
	$out      = array();

	foreach ( $rows as $r ) {
		list( $section, $pane ) = cwp_ai_route( $r[0] );

		if ( ! isset( $sections[ $section ] ) ) {
			continue;
		}

		$panes = $sections[ $section ]['panes'];
		$pane  = isset( $panes[ $pane ] ) ? $pane : (string) array_key_first( $panes );

		$out[] = array(
			'tab'      => $section . '/' . $pane,
			'icon'     => $sections[ $section ]['icon'],
			'tabLabel' => $sections[ $section ]['label'] . ( count( $panes ) > 1 ? ', ' . $panes[ $pane ]['label'] : '' ),
			'id'       => $r[1],
			'title'    => $r[2],
			'words'    => $r[3],
			'url'      => cwp_ai_admin_url( $section, $pane ) . ( '' !== $r[1] ? '#cwp-open=' . $r[1] : '' ),
		);
	}

	$out[] = array(
		'tab'      => 'setup',
		'icon'     => 'controls-play',
		'tabLabel' => 'Setup',
		'id'       => '',
		'title'    => 'Run the guided setup again',
		'words'    => 'setup wizard onboarding start',
		'url'      => cwp_ai_admin_url( 'setup' ),
	);

	return $out;
}

/**
 * Tells whether the knowledge reminder is closed for the current login session.
 *
 * @return bool
 */
function cwp_ai_kb_banner_dismissed() {
	$token = wp_get_session_token();

	if ( '' === $token ) {
		return false;
	}

	$stored = get_user_meta( get_current_user_id(), 'cwp_ai_kb_banner_dismissed', true );

	return is_string( $stored ) && '' !== $stored && hash_equals( wp_hash( $token ), $stored );
}

/**
 * Tells whether the knowledge reminder stays hidden.
 *
 * @param int|null $count Number of saved answers, or null to read it.
 * @return bool
 */
function cwp_ai_kb_banner_hidden( $count = null ) {
	if ( ! current_user_can( 'manage_options' ) ) {
		return true;
	}

	$n = null === $count ? (int) cwp_ai_knowledge()->count() : (int) $count;

	return $n >= 15 || cwp_ai_kb_banner_dismissed();
}

/**
 * Prints the reminder shown while the knowledge base has fewer than 15 answers.
 *
 * @param bool     $in_wizard True inside the setup wizard, where the form is already on screen.
 * @param int|null $count     Number of saved answers, or null to read it.
 */
function cwp_ai_render_knowledge_banner( $in_wizard = false, $count = null ) {
	if ( cwp_ai_kb_banner_hidden( $count ) ) {
		return;
	}

	$n = null === $count ? (int) cwp_ai_knowledge()->count() : (int) $count;

	if ( 0 === $n ) {
		$title = 'Add your first questions and answers';
	} elseif ( 1 === $n ) {
		$title = 'Your knowledge base has 1 answer';
	} else {
		$title = sprintf( 'Your knowledge base has %s answers', number_format_i18n( $n ) );
	}
	?>
	<div class="cwp-kb-banner" id="cwp-kb-banner" role="status">
		<div class="cwp-kb-banner-text">
			<strong id="cwp-kb-banner-title"><?php echo esc_html( $title ); ?></strong>
			<p>Your chatbot works best with at least 15 questions and answers, for example working hours, services, location, prices, contact details, booking and payment.</p>
		</div>
		<?php if ( ! $in_wizard ) : ?>
			<a class="cwp-shell-btn is-go" href="<?php echo esc_url( cwp_ai_admin_url( 'knowledge', 'add' ) ); ?>">Add answers</a>
		<?php endif; ?>
		<button type="button" class="cwp-kb-banner-close" id="cwp-kb-banner-close" data-nonce="<?php echo esc_attr( wp_create_nonce( 'cwp_ai_dismiss_kb_banner' ) ); ?>" aria-label="Dismiss this reminder"><span class="dashicons dashicons-no-alt"></span></button>
	</div>
	<?php
}

add_action(
	'wp_ajax_cwp_ai_dismiss_kb_banner',
	function () {
		check_ajax_referer( 'cwp_ai_dismiss_kb_banner', 'nonce' );

		if ( ! current_user_can( 'manage_options' ) ) {
			wp_send_json_error( array( 'message' => 'Unauthorized' ), 403 );
		}

		$token = wp_get_session_token();

		if ( '' !== $token ) {
			update_user_meta( get_current_user_id(), 'cwp_ai_kb_banner_dismissed', wp_hash( $token ) );
		}

		wp_send_json_success();
	}
);

/**
 * Prints the top of the admin layout: header, sections, panes and search.
 *
 * @param string $current The section being viewed.
 * @param string $theme   light or dark.
 */
function cwp_ai_render_shell( $current, $theme ) {
	$sections = cwp_ai_sections();
	$pane     = cwp_ai_current_pane();
	$panes    = $sections[ $current ]['panes'] ?? array();
	?>

	<div class="cwp-shell" id="cwp-shell">
		<div class="cwp-shell-top">
			<div class="cwp-shell-brand"><span class="cwp-shell-logo"><span class="dashicons dashicons-format-chat"></span></span> Cloudy AI Chatbot</div>
			<div class="cwp-shell-search">
				<span class="dashicons dashicons-search"></span>
				<input type="search" id="cwp-shell-q" placeholder="Search settings..." autocomplete="off" />
				<kbd id="cwp-shell-kbd">Ctrl K</kbd>
				<div class="cwp-shell-results" id="cwp-shell-results"></div>
			</div>
			<div class="cwp-shell-actions">
				<?php if ( apply_filters( 'cwp_ai_needs_setup', ! get_option( 'cwp_ai_setup_done' ) ) ) : ?>
					<a class="cwp-shell-btn is-go" href="<?php echo esc_url( cwp_ai_admin_url( 'setup' ) ); ?>"><span class="dashicons dashicons-controls-play"></span> Finish setup</a>
				<?php endif; ?>
				<button type="button" class="cwp-shell-btn cwp-shell-icon cwp-theme-toggle" id="cwp-theme-toggle" aria-pressed="<?php echo esc_attr( 'dark' === $theme ? 'true' : 'false' ); ?>" title="<?php echo esc_attr( 'dark' === $theme ? 'Switch to light' : 'Switch to dark' ); ?>" aria-label="Switch between light and dark">
					<span class="dashicons <?php echo esc_attr( 'dark' === $theme ? 'dashicons-lightbulb' : 'dashicons-admin-appearance' ); ?>"></span>
				</button>
			</div>
		</div>
		<nav class="cwp-shell-tabs" aria-label="Chatbot sections">
			<?php foreach ( $sections as $key => $section ) : ?>
				<a href="<?php echo esc_url( cwp_ai_admin_url( $key ) ); ?>" class="<?php echo esc_attr( $key === $current ? 'is-on' : '' ); ?>" aria-current="<?php echo esc_attr( $key === $current ? 'page' : 'false' ); ?>"><span class="dashicons dashicons-<?php echo esc_attr( $section['icon'] ); ?>"></span><?php echo esc_html( $section['label'] ); ?></a>
			<?php endforeach; ?>
		</nav>
	</div>

	<div class="cwp-shell-page">
		<div class="cwp-shell-intro">
			<h1><?php echo esc_html( $sections[ $current ]['label'] ?? '' ); ?></h1>
			<p><?php echo esc_html( $sections[ $current ]['desc'] ?? '' ); ?></p>
		</div>
		<?php if ( 'knowledge' === $current ) : ?>
			<?php cwp_ai_render_knowledge_banner(); ?>
		<?php endif; ?>
		<?php if ( count( $panes ) > 1 ) : ?>
			<nav class="cwp-panes" aria-label="<?php echo esc_attr( ( $sections[ $current ]['label'] ?? '' ) . ' pages' ); ?>">
				<?php foreach ( $panes as $key => $p ) : ?>
					<a href="<?php echo esc_url( cwp_ai_admin_url( $current, $key ) ); ?>" class="<?php echo esc_attr( $key === $pane ? 'is-on' : '' ); ?>" aria-current="<?php echo esc_attr( $key === $pane ? 'page' : 'false' ); ?>"><?php echo esc_html( $p['label'] ); ?></a>
				<?php endforeach; ?>
			</nav>
		<?php endif; ?>
	<?php
}

/**
 * Prints the end of the admin layout, with the settings search.
 */
function cwp_ai_render_shell_end() {
	?>
	</div>
	<?php
	cwp_ai_screen_script(
		'shell',
		array(
			'index' => cwp_ai_shell_index(),
			'here'  => cwp_ai_current_tab() . '/' . cwp_ai_current_pane(),
		)
	);
	?>
	<?php
}