<?php
/**
 * Shared identity chrome: VIP / verify / level / badges for author bar & comments.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

if (!function_exists('aksrt_get_user_identity_signals')) {
	/**
	 * @return list<array{type?:string,label:string,icon:string,tone:string,title?:string,icon_url?:string,slug?:string,wear?:bool}>
	 */
	function aksrt_get_user_identity_signals(int $user_id): array {
		if ($user_id <= 0) {
			return [];
		}
		if (class_exists('\AKSRT\User\Home')) {
			$signals = \AKSRT\User\Home::get_instance()->get_profile_signals($user_id);
			return is_array($signals) ? array_values($signals) : [];
		}
		return [];
	}
}

if (!function_exists('aksrt_render_user_identity_chips')) {
	/**
	 * Render compact identity chips (verify / level / badges).
	 *
	 * Badge signals with icon_url render as Zibll-like medal images.
	 *
	 * @param int    $user_id
	 * @param string $context author|comment|card
	 * @param array  $args    {
	 *     Optional. Additional options.
	 *
	 *     @type bool $include_vip Whether to prepend VIP badge. Default true.
	 *     @type bool $skip_level  Whether to omit the level chip (rendered inline elsewhere). Default false.
	 *     @type bool $skip_badges Whether to omit badge signals from this row. Default false.
	 * }
	 */
	function aksrt_render_user_identity_chips(int $user_id, string $context = 'author', array $args = []): string {
		if ($user_id <= 0) {
			return '';
		}
		$args = wp_parse_args($args, [
			'include_vip' => true,
			'skip_level'  => false,
		]);
		$html = '';
		if (!empty($args['include_vip']) && function_exists('aksrt_render_vip_badge')) {
			$vip = aksrt_render_vip_badge($user_id, 'sm');
			if (is_string($vip) && $vip !== '') {
				$html .= $vip;
			}
		}
		$signals = aksrt_get_user_identity_signals($user_id);
		// Keep the public identity order stable: certification, worn badge, level.
		usort($signals, static function (array $left, array $right): int {
			$priority = ['verify' => 0, 'badge' => 1, 'level' => 2];
			return ($priority[(string) ($left['type'] ?? '')] ?? 3) <=> ($priority[(string) ($right['type'] ?? '')] ?? 3);
		});
			if ($context === 'comment') {
				$signals = array_values(array_filter($signals, static function (array $signal): bool {
					return (string) ($signal['type'] ?? '') !== 'badge' || !empty($signal['wear']);
				}));
			}
			// Comments stay compact; author/card can show more.
		$limit = $context === 'comment' ? 3 : 6;
		$n     = 0;
		foreach ($signals as $signal) {
			if ($n >= $limit) {
				break;
			}
			$label = trim((string) ($signal['label'] ?? ''));
			if ($label === '') {
				continue;
			}
			$type     = sanitize_html_class((string) ($signal['type'] ?? ''));
			// Level is rendered inline next to the name by the caller; skip it here.
			if (!empty($args['skip_level']) && $type === 'level') {
				continue;
			}
			if (!empty($args['skip_badges']) && $type === 'badge') {
				continue;
			}
			$tone     = sanitize_html_class((string) ($signal['tone'] ?? 'info'));
			$icon     = sanitize_html_class((string) ($signal['icon'] ?? 'check'));
			$icon_url = esc_url((string) ($signal['icon_url'] ?? ''));
			$title    = (string) ($signal['title'] ?? $label);
			$is_wear  = !empty($signal['wear']);

			// Image medal when dictionary provides icon_url.
			if ($icon_url !== '') {
				$classes = 'medal-icon img-icon ml3 aksrt-identity-medal aksrt-identity-medal--' . $context;
				if ($is_wear) {
					$classes .= ' is-wear';
				}
				if ($type !== '') {
					$classes .= ' aksrt-identity-medal--' . $type;
				}
				$html .= '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, $classes) . ' alt="' . esc_attr($label) . '" title="' . esc_attr($title) . '" decoding="async">';
				$n++;
				continue;
			}

			// Font Awesome: map short names to fa-* if needed.
			if ($icon !== '' && !str_contains($icon, 'fa-')) {
				$icon = 'fa-' . $icon;
			}
			$html .= '<span class="badg badg-sm ml3 aksrt-identity-chip aksrt-identity-chip--' . esc_attr($tone) . ' aksrt-identity-chip--' . esc_attr($context) . ($is_wear ? ' is-wear' : '') . '" title="' . esc_attr($title) . '">';
			if ($icon !== '') {
				$html .= '<i class="fa ' . esc_attr($icon) . '" aria-hidden="true"></i> ';
			}
			$html .= esc_html($label) . '</span>';
			$n++;
		}
		return $html;
	}
}

if (!function_exists('aksrt_get_user_name')) {
	/**
	 * Zibll zib_get_user_name parity: name link + auth + wear medal + level + optional follow.
	 *
	 * @param array|int $args User id or args array.
	 */
	function aksrt_get_user_name($args = []): string {
		$defaults = [
			'id'         => 0,
			'class'      => 'flex ac flex1',
			'name_class' => '',
			'vip'        => true,
			'medal'      => true,
			'auth'       => true,
			'level'      => true,
			'follow'     => false,
		];
		if (is_numeric($args)) {
			$defaults['id'] = (int) $args;
			$args           = $defaults;
		} else {
			$args = wp_parse_args(is_array($args) ? $args : [], $defaults);
		}
		$user_id = (int) $args['id'];
		if ($user_id <= 0) {
			$user_id = get_current_user_id();
		}
		if ($user_id <= 0) {
			return '';
		}

		$user = get_userdata($user_id);
		if (!$user) {
			return '';
		}

		$home = function_exists('get_author_posts_url') ? get_author_posts_url($user_id) : '';
		$display = $user->display_name;
		$vip_html = '';
		if (!empty($args['vip']) && function_exists('aksrt_render_vip_badge')) {
			$vip_html = (string) aksrt_render_vip_badge($user_id, 'sm');
		}
		$name_class = trim('display-name text-ellipsis ' . (string) $args['name_class']);
		$name_link  = '<a class="' . esc_attr($name_class) . '" href="' . esc_url($home) . '">' . esc_html($display) . '</a>';

		$auth_html  = '';
		$medal_html = '';
		$level_html = '';
		$signals    = aksrt_get_user_identity_signals($user_id);
		foreach ($signals as $signal) {
			$type  = (string) ($signal['type'] ?? '');
			$label = trim((string) ($signal['label'] ?? ''));
			if ($label === '') {
				continue;
			}
			$icon_url = esc_url((string) ($signal['icon_url'] ?? ''));
			$title    = (string) ($signal['title'] ?? $label);
			if ($type === 'verify' && !empty($args['auth']) && $auth_html === '') {

				$auth_html = $icon_url !== ''

					? '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'aksrt-identity-certification-icon img-icon ml3') . ' alt="' . esc_attr($label) . '" title="' . esc_attr($title) . '" decoding="async">'

					: '<span class="badg badg-sm ml3 aksrt-identity-chip aksrt-identity-chip--success" title="' . esc_attr($title) . '"><i class="fa fas fa-check-circle" aria-hidden="true"></i> ' . esc_html($label) . '</span>';

			} elseif ($type === 'level' && !empty($args['level']) && $level_html === '') {
				if ($icon_url !== '') {
					$level_html = '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'aksrt-user-level-icon img-icon ml3') . ' alt="' . esc_attr($label) . '" title="' . esc_attr($title) . '" decoding="async">';
				} else {
					// Text fallback mirrors zibll LV badge: small pill, never oversized.
					$level_html = '<span class="badg badg-sm ml3 aksrt-user-level-badge" title="' . esc_attr($title) . '">' . esc_html($label) . '</span>';
				}
			} elseif ($type === 'badge' && !empty($args['medal']) && $medal_html === '' && !empty($signal['wear'])) {
				if ($icon_url !== '') {
					$medal_html = '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'medal-icon img-icon ml3 aksrt-identity-medal is-wear') . ' alt="' . esc_attr($label) . '" title="' . esc_attr($title) . '" decoding="async">';
				} else {
					$medal_html = '<span class="badg badg-sm ml3 aksrt-identity-chip is-wear" title="' . esc_attr($title) . '"><i class="fa fas fa-trophy" aria-hidden="true"></i> ' . esc_html($label) . '</span>';
				}
			}
		}
		// If medal requested but no wear flag, use first badge with icon.
		if (!empty($args['medal']) && $medal_html === '') {
			foreach ($signals as $signal) {
				if ((string) ($signal['type'] ?? '') !== 'badge') {
					continue;
				}
				$label = trim((string) ($signal['label'] ?? ''));
				$icon_url = esc_url((string) ($signal['icon_url'] ?? ''));
				$title = (string) ($signal['title'] ?? $label);
				if ($label === '') {
					continue;
				}
				if ($icon_url !== '') {
					$medal_html = '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'medal-icon img-icon ml3 aksrt-identity-medal') . ' alt="' . esc_attr($label) . '" title="' . esc_attr($title) . '" decoding="async">';
				} else {
					$medal_html = '<span class="badg badg-sm ml3 aksrt-identity-chip" title="' . esc_attr($title) . '"><i class="fa fas fa-trophy" aria-hidden="true"></i> ' . esc_html($label) . '</span>';
				}
				break;
			}
		}

		$follow_html = '';
		if (!empty($args['follow']) && get_current_user_id() !== $user_id) {
			if (is_user_logged_in()) {
				$follow_html = '<button type="button" class="focus-color ml10 follow flex0 but" data-aksrt-follow="' . (int) $user_id . '"><i class="fa fas fa-heart em09" aria-hidden="true"></i> ' . esc_html__('关注', 'aksrt') . '</button>';
			} else {
				$login = function_exists('aksrt_get_login_url') ? aksrt_get_login_url() : wp_login_url();
				$follow_html = '<a class="focus-color ml10 follow flex0 but" href="' . esc_url($login) . '"><i class="fa fas fa-heart em09" aria-hidden="true"></i> ' . esc_html__('关注', 'aksrt') . '</a>';
			}
		}

		// Order: name → auth → wear medal → level → follow (Zibll).
		$html = '<name class="' . esc_attr((string) $args['class']) . '">' . $name_link . $vip_html . $auth_html . $medal_html . $level_html . $follow_html . '</name>';
		/**
		 * Filter rendered user name chrome.
		 *
		 * @param string $html
		 * @param int    $user_id
		 * @param array  $args
		 */
		return (string) apply_filters('aksrt_user_show_name', $html, $user_id, $args);
	}
}

if (!function_exists('aksrt_render_user_medal_entry')) {
	/**
	 * Render the compact Zibll-style badge overview entry.
	 *
	 * The configured limit controls preview icons only; the count remains
	 * the complete owned badge count returned by the privacy-aware DTO.
	 *
	 * @param int    $user_id
	 * @param string $context user-center|user-home
	 * @param bool   $can_wear Whether the viewer may initially wear a badge.
	 */
	function aksrt_render_user_medal_entry(int $user_id, string $context = 'user-home', bool $can_wear = false): string {
		if ($user_id <= 0 || !class_exists('AKSRT\\User\\Badges') || !class_exists('AKSRT\\Settings\\Settings')) {
			return '';
		}

		$settings = \AKSRT\Settings\Settings::get_user_identity_settings();
		$medal    = is_array($settings['medal'] ?? null) ? $settings['medal'] : [];
		if (empty($medal['enabled']) || ($context === 'user-home' && empty($medal['public_display']))) {
			return '';
		}

		$data = \AKSRT\User\Badges::list_for_user($user_id);
		if (empty($data['enabled']) || ($context === 'user-home' && empty($data['public_display']))) {
			return '';
		}
		$count = max(0, (int) ($data['count'] ?? 0));
		$is_manager = \AKSRT\User\Badges::can_manually_set(get_current_user_id());
		if ($context === 'user-home' && $count === 0 && !$is_manager) {
			return '';
		}
		$action = $is_manager && $context === 'user-home' && $count === 0 ? 'aksrt_user_medal_manually_add_modal' : 'aksrt_user_medal_info_modal';
		$modal_class = $action === 'aksrt_user_medal_manually_add_modal'
			? 'aksrt-badge-modal aksrt-badge-modal--grant'
			: 'aksrt-badge-modal aksrt-badge-modal--overview';
		$query = ['action' => $action, 'id' => $user_id];
		$url = add_query_arg($query, admin_url('admin-ajax.php'));

		$limit = max(1, min(8, (int) ($medal['limit'] ?? 3)));
		$icons = [];
		foreach ((array) ($data['categories'] ?? []) as $category) {
			foreach ((array) ($category['items'] ?? []) as $item) {
				if (empty($item['owned'])) {
					continue;
				}
				$icon_url = esc_url((string) ($item['icon_url'] ?? ''));
				if ($icon_url === '') {
					continue;
				}
				$label = sanitize_text_field((string) ($item['label'] ?? __('徽章', 'aksrt')));
				$icons[] = '<img' . aksrt_get_lazy_attr('lazy_other', $icon_url, 'img-icon medal-icon aksrt-medal-entry__icon') . ' alt="' . esc_attr($label) . '" title="' . esc_attr($label) . '" decoding="async">';
				if (count($icons) >= $limit) {
					break 2;
				}
			}
		}

		$label = $count > 0 ? sprintf(_n('%d枚徽章', '%d枚徽章', $count, 'aksrt'), $count) : ($is_manager && $context === 'user-home' ? __('授予徽章', 'aksrt') : __('获取徽章', 'aksrt'));
		$icons_html = implode('', $icons);
		if ($icons_html === '') {
			$icons_html = '<span class="aksrt-medal-entry__fallback" aria-hidden="true"><i class="fa fas fa-trophy"></i></span>';
		}
		$classes = 'aksrt-medal-entry aksrt-medal-entry--' . sanitize_html_class($context);
		return '<a class="' . esc_attr($classes . ' aksrt-modal-link') . '" data-aksrt-modal="remote" data-aksrt-modal-url="' . esc_url($url) . '" data-aksrt-modal-class="' . esc_attr($modal_class) . '" data-aksrt-modal-mobile-bottom="true" data-aksrt-modal-cache="false" href="' . esc_url($url) . '" aria-label="' . esc_attr($label) . '"><span class="aksrt-medal-entry__icons">' . $icons_html . '</span><span class="aksrt-medal-entry__count">' . esc_html($label) . '</span><i class="fa fas fa-angle-right aksrt-medal-entry__arrow" aria-hidden="true"></i></a>';
	}
}

if (!function_exists('aksrt_user_has_visible_badges')) {
	/**
	 * Whether a user owns at least one badge that exists in the current catalog.
	 *
	 * Used by user-center surfaces to decide whether to show the "我的徽章"
	 * button. Prevents rendering a button that opens an empty modal when the
	 * badge dictionary has no entries or none of the user's badges match it.
	 *
	 * @param int $user_id Target user (0 = current user).
	 * @return bool
	 */
	function aksrt_user_has_visible_badges(int $user_id = 0): bool {
		if ($user_id <= 0) {
			$user_id = get_current_user_id();
		}
		if ($user_id <= 0 || !class_exists('AKSRT\\User\\Badges')) {
			return false;
		}
		$map = \AKSRT\User\Badges::get_dictionary_map();
		if (empty($map)) {
			return false;
		}
		$owned = \AKSRT\User\Badges::get_owned($user_id);
		foreach ((array) $owned as $slug) {
			if (is_string($slug) && $slug !== '' && isset($map[$slug])) {
				return true;
			}
		}
		return false;
	}
}

if (!function_exists('aksrt_get_worn_medal_icon')) {
	/**
	 * Render the worn medal icon HTML for a user (standalone, zibll parity).
	 *
	 * Returns an <img> tag when a badge is worn and has an icon_url in the
	 * dictionary. Handles the edge case where the worn slug lives in user meta
	 * but the badge class is unavailable (defensive: rebuilds from settings).
	 *
	 * @param int    $user_id Target user (0 = current user).
	 * @param string $class   Extra CSS classes ( space-separated ).
	 * @return string HTML safe for echo; '' when nothing to render.
	 */
	function aksrt_get_worn_medal_icon(int $user_id = 0, string $class = ''): string {
		if ($user_id <= 0) {
			$user_id = get_current_user_id();
		}
		if ($user_id <= 0) {
			return '';
		}

		$enabled = false;
		$slug    = '';
		$icon    = '';
		$label   = '';

		if (class_exists('AKSRT\\User\\Badges') && is_callable(['AKSRT\\User\\Badges', 'enabled'])) {
			if (\AKSRT\User\Badges::enabled()) {
				$enabled = true;
			}
		}

		if (!$enabled && class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_user_identity_settings')) {
			$ident = \AKSRT\Settings\Settings::get_user_identity_settings();
			if (!empty($ident['badge']['enabled'])) {
				$enabled = true;
			}
		}

		if (!$enabled) {
			return '';
		}

		// Class-backed path (canonical).
		if (class_exists('AKSRT\\User\\Badges')
			&& is_callable(['AKSRT\\User\\Badges', 'get_wear'])
			&& is_callable(['AKSRT\\User\\Badges', 'get_dictionary_map'])) {
			$slug  = sanitize_key((string) \AKSRT\User\Badges::get_wear($user_id));
			$map   = \AKSRT\User\Badges::get_dictionary_map();
			$entry = is_array($map[$slug] ?? null) ? $map[$slug] : [];
			if (is_array($entry) && !empty($entry)) {
				$icon  = isset($entry['icon_url']) ? esc_url((string) $entry['icon_url']) : '';
				$label = isset($entry['label']) ? sanitize_text_field((string) $entry['label']) : '';
			}
		}

		// Fallback when class is missing or returned nothing: rebuild from settings.
		if ($slug === '' && $icon === '' && class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_user_identity_settings')) {
			$ident = \AKSRT\Settings\Settings::get_user_identity_settings();
			$slug  = sanitize_key((string) get_user_meta($user_id, 'aksrt_wear_badge', true));
			if ($slug !== '') {
				$dictionary = is_array($ident['badge']['dictionary'] ?? null) ? $ident['badge']['dictionary'] : [];
				foreach ((array) $dictionary as $item) {
					if (is_array($item) && !empty($item['slug']) && (string) $item['slug'] === $slug) {
						$icon  = isset($item['icon_url']) ? esc_url((string) $item['icon_url']) : '';
						$label = isset($item['label']) ? sanitize_text_field((string) $item['label']) : '';
						break;
					}
				}
			}
		}

		if ($slug === '' || ($icon === '' && $label === '')) {
			return '';
		}

		if ($icon !== '') {
			$extra  = $class !== '' ? ' ' . esc_attr($class) : '';
			return '<img' . aksrt_get_lazy_attr('lazy_other', $icon, 'medal-icon img-icon ml3 aksrt-identity-medal is-wear' . $extra) . ' alt="' . esc_attr($label) . '" title="' . esc_attr($label) . '" decoding="async">';
		}

		// Text fallback (rare): small pill labelled with badge text.
		$extra = $class !== '' ? ' ' . esc_attr($class) : '';
		return '<span class="badg badg-sm ml3 aksrt-identity-medal is-wear' . $extra . '" title="' . esc_attr($label) . '"><i class="fa fas fa-trophy" aria-hidden="true"></i> ' . esc_html($label) . '</span>';
	}
}

if (!function_exists('aksrt_is_blog_comment_hot')) {
	/**
	 * "神评" for ordinary post comments when likes cross threshold.
	 */
	function aksrt_is_blog_comment_hot($comment): bool {
		$comment_id = $comment instanceof WP_Comment ? (int) $comment->comment_ID : (int) $comment;
		if ($comment_id <= 0) {
			return false;
		}
		if ('1' === (string) get_comment_meta($comment_id, '_aksrt_comment_hot', true)) {
			return true;
		}
		$threshold = 10;
		if (class_exists('\AKSRT\Settings\Settings') && method_exists('\AKSRT\Settings\Settings', 'get_comment_display_settings')) {
			$display = \AKSRT\Settings\Settings::get_comment_display_settings();
			if (isset($display['hot_threshold'])) {
				$threshold = max(1, (int) $display['hot_threshold']);
			}
		}
		$all = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_all() : [];
		if (isset($all['comment_hot_threshold'])) {
			$threshold = max(1, (int) $all['comment_hot_threshold']);
		}
		$likes = function_exists('aksrt_get_comment_likes') ? aksrt_get_comment_likes($comment_id) : (int) get_comment_meta($comment_id, 'aksrt_comment_likes', true);
		if ($likes < $threshold) {
			return false;
		}
		update_comment_meta($comment_id, '_aksrt_comment_hot', '1');
		return true;
	}
}