<?php
/**
 * @package AKSRT
 */

namespace AKSRT\Settings;

defined('ABSPATH') || exit;

class PostDisplay {

    public static function get_post_list_style_settings(): array {
        $settings = Settings::get_all();
        $list_type = sanitize_key((string) ($settings['list_type'] ?? 'thumb'));
        if (!in_array($list_type, ['text', 'thumb', 'thumb_if_has', 'card'], true)) {
            $list_type = 'thumb';
        }

        $list_option = is_array($settings['list_list_option'] ?? null) ? $settings['list_list_option'] : [];
        $list_style = sanitize_key((string) ($list_option['style'] ?? 'null'));
        $list_style = $list_style === 'style2' ? 'style2' : 'null';
        $list_position = sanitize_key((string) ($list_option['img_position'] ?? 'left'));
        $list_position = $list_position === 'right' ? 'right' : 'left';

        $card_option = is_array($settings['list_card_option'] ?? null) ? $settings['list_card_option'] : [];
        $card_style = sanitize_key((string) ($card_option['style'] ?? 'null'));
        $card_style = $card_style === 'style3' ? 'style3' : 'null';

        $sticky_pages = is_array($settings['sticky_s'] ?? null)
            ? array_values(array_intersect(array_map('sanitize_key', $settings['sticky_s']), ['home', 'cat', 'tag']))
            : ['home', 'cat'];
        $badge_types = is_array($settings['list_badge_show'] ?? null)
            ? array_values(array_intersect(array_map('sanitize_key', $settings['list_badge_show']), ['pay', 'cat', 'tag']))
            : ['pay', 'cat', 'tag'];
        $card_cat_ids = is_array($settings['list_card_cat'] ?? null)
            ? array_values(array_filter(array_map('intval', $settings['list_card_cat'])))
            : [];

        $time_source = sanitize_key((string) ($settings['post_time_source'] ?? 'modified'));
        $mobile_meta = sanitize_key((string) ($settings['list_meta_show'] ?? 'like'));
        $list_show_type = sanitize_key((string) ($settings['list_show_type'] ?? 'separate'));
        $list_orderby = sanitize_key((string) ($settings['list_orderby'] ?? 'modified'));

        return [
            'list_type'           => $list_type,
            'list_orderby'        => in_array($list_orderby, ['date', 'modified', 'default'], true) ? $list_orderby : 'modified',
            'post_time_source'    => $time_source === 'date' ? 'date' : 'modified',
            'sticky_s'            => $sticky_pages,
            'target_blank'        => !empty($settings['target_blank']),
            'item_heading_bold'   => !empty($settings['item_heading_bold']),
            'post_list_author'    => !array_key_exists('post_list_author', $settings) || !empty($settings['post_list_author']),
            'post_list_time'      => !array_key_exists('post_list_time', $settings) || !empty($settings['post_list_time']),
            'paging_ajax_s'       => (string) ($settings['paging_ajax_s'] ?? '1') === '1',
            'paging_ajax_ias_s'   => !array_key_exists('paging_ajax_ias_s', $settings) || !empty($settings['paging_ajax_ias_s']),
            'ias_max'             => max(0, min(10, (int) ($settings['ias_max'] ?? 3))),
            'list_meta_show'      => in_array($mobile_meta, ['view', 'like', 'comm'], true) ? $mobile_meta : 'like',
            'list_badge_show'     => $badge_types,
            'list_show_type'      => in_array($list_show_type, ['separate', 'no_margin'], true) ? $list_show_type : 'separate',
            'list_card_home'      => !empty($settings['list_card_home']),
            'list_card_tag'       => !empty($settings['list_card_tag']),
            'list_card_author'    => !empty($settings['list_card_author']),
            'list_card_cat'       => $card_cat_ids,
            'list_list_option'    => [
                'style'        => $list_style,
                'img_position' => $list_position,
                'scale'        => max(50, min(200, (int) ($list_option['scale'] ?? 70))),
            ],
            'list_card_option'    => [
                'style' => $card_style,
                'scale' => max(20, min(200, (int) ($card_option['scale'] ?? 70))),
            ],
            'mult_thumb_cat'      => is_array($settings['mult_thumb_cat'] ?? null) ? array_values(array_filter(array_map('intval', $settings['mult_thumb_cat']))) : [],
            'ajax_trigger'        => wp_kses_post((string) ($settings['ajax_trigger'] ?? '<i class="fa fas fa-angle-right"></i>加载更多')),
            'ajax_nomore'         => wp_kses_post((string) ($settings['ajax_nomore'] ?? '没有更多内容了')),
        ];
    }

	public static function get_post_thumb_settings(): array {
		$settings = Settings::get_all();
		$spare_settings = array_key_exists('spare_thumbnail', $settings)
			? (array) $settings['spare_thumbnail']
			: [['img' => get_template_directory_uri() . '/assets/img/thumbnail.svg']];
		$spare = [];
		foreach ($spare_settings as $item) {
            $url = is_array($item) ? (string) ($item['img'] ?? '') : '';
            if ($url !== '') {
                $spare[] = esc_url_raw($url);
            }
        }
        $fit = sanitize_key((string) ($settings['list_thumb_fit'] ?? ''));
        return [
            'list_thumb_slides_s'     => !array_key_exists('list_thumb_slides_s', $settings) || !empty($settings['list_thumb_slides_s']),
            'list_thumb_video_s'      => !array_key_exists('list_thumb_video_s', $settings) || !empty($settings['list_thumb_video_s']),
            'list_thumb_video_mute_s' => !array_key_exists('list_thumb_video_mute_s', $settings) || !empty($settings['list_thumb_video_mute_s']),
            'thumb_postfirstimg_s'    => !array_key_exists('thumb_postfirstimg_s', $settings) || !empty($settings['thumb_postfirstimg_s']),
            'thumb_catimg_s'          => !array_key_exists('thumb_catimg_s', $settings) || !empty($settings['thumb_catimg_s']),
            'list_thumb_fit'          => $fit === 'contain' ? 'contain' : '',
            'thumb_postfirstimg_size' => in_array(sanitize_key((string) ($settings['thumb_postfirstimg_size'] ?? 'medium')), ['thumbnail', 'medium', 'large', 'full'], true) ? sanitize_key((string) ($settings['thumb_postfirstimg_size'] ?? 'medium')) : 'medium',
            'spare_thumbnail'         => $spare,
        ];
    }

    public static function get_post_filter_settings(): array {
        $settings = Settings::get_all();

        return [
            'enabled'            => !empty($settings['filter_enabled']),
            'categories'         => !isset($settings['filter_categories']) || !empty($settings['filter_categories']),
            'tags'               => !empty($settings['filter_tags']),
            'sort'               => !isset($settings['filter_sort']) || !empty($settings['filter_sort']),
            'ajax_enabled'       => !empty($settings['filter_ajax_enabled']),
            'cat_show_cat'       => !isset($settings['filter_cat_show_cat']) || !empty($settings['filter_cat_show_cat']),
            'cat_show_tag'       => !empty($settings['filter_cat_show_tag']),
            'tag_show_cat'       => !isset($settings['filter_tag_show_cat']) || !empty($settings['filter_tag_show_cat']),
            'tag_show_tag'       => !empty($settings['filter_tag_show_tag']),
            'custom_filter_show' => is_array($settings['custom_filter_show'] ?? null) ? array_map('sanitize_key', $settings['custom_filter_show']) : ['cat', 'tag'],
            'custom_filter'      => self::sanitize_custom_filter_defs($settings['custom_filter'] ?? []),
            'cat_custom_filter'  => self::sanitize_cat_custom_filter($settings['cat_custom_filter'] ?? []),
        ];
    }

    public static function get_filter_config_for_category(int $term_id): array {
        $cfg = self::get_post_filter_settings();
        foreach ($cfg['cat_custom_filter'] as $rule) {
            if (in_array($term_id, $rule['cats'], true)) {
                return $rule;
            }
        }
        return [
            'cats'           => [],
            'cat_s'          => $cfg['cat_show_cat'],
            'tag_s'          => $cfg['cat_show_tag'],
            'orderby_s'      => $cfg['sort'],
            'custom_filters' => [],
        ];
    }

    public static function get_post_page_settings(): array {
        $settings = Settings::get_all();

        // Canonical render keys (used by aksrt_single_*). Legacy *_s aliases kept for older callers.
        $breadcrumbs = !isset($settings['breadcrumbs_single_s']) || !empty($settings['breadcrumbs_single_s']);
        $breadcrumbs_home = sanitize_text_field((string) ($settings['breadcrumbs_home_text'] ?? '首页'));
        // legacy breadcrumbs_single_text: true → last crumb is "正文"; false → full title.
        $breadcrumbs_single_text = !isset($settings['breadcrumbs_single_text']) || !empty($settings['breadcrumbs_single_text']);
        $prevnext = !isset($settings['post_prevnext_s']) || !empty($settings['post_prevnext_s']);
        $authordesc = !isset($settings['post_authordesc_s']) || !empty($settings['post_authordesc_s']);
        $hide_time = !empty($settings['post_single_hide_time_s']);
        $share_enabled = !isset($settings['share_s']) || !empty($settings['share_s']);
        $rewards_enabled = !empty($settings['post_rewards_s']);
        $rewards_text = sanitize_text_field((string) ($settings['post_rewards_text'] ?? ''));
        if ($rewards_text === '') {
            $rewards_text = '赞赏';
        }
		$reward_amount = static function ($value, string $default): \AKSRT\Ledger\AssetAmount {
			try {
				return \AKSRT\Ledger\AssetAmount::balance(is_string($value) ? trim($value) : '');
			} catch (\InvalidArgumentException $e) {
				return \AKSRT\Ledger\AssetAmount::balance($default);
			}
		};
		$rewards_amounts = [];
		foreach (explode(',', (string) ($settings['post_rewards_amounts'] ?? '5.00,10.00,20.00,50.00,100.00')) as $value) {
			try {
				$parsed = \AKSRT\Ledger\AssetAmount::balance(trim($value));
				if ($parsed->minor() > 0) {
					$rewards_amounts[] = $parsed->decimal();
				}
			} catch (\InvalidArgumentException $e) {
				continue;
			}
		}
		if ($rewards_amounts === []) {
			$rewards_amounts = ['5.00', '10.00', '20.00', '50.00', '100.00'];
		}
		$rewards_min_amount = $reward_amount($settings['post_rewards_min'] ?? '1.00', '1.00');
		if ($rewards_min_amount->minor() <= 0) {
			$rewards_min_amount = \AKSRT\Ledger\AssetAmount::balance('0.01');
		}
		$rewards_max_amount = $reward_amount($settings['post_rewards_max'] ?? '1000.00', '1000.00');
		if ($rewards_max_amount->minor() < $rewards_min_amount->minor()) {
			$rewards_max_amount = $rewards_min_amount;
		}
		$rewards_min = $rewards_min_amount->decimal();
		$rewards_max = $rewards_max_amount->decimal();
        $author_card_limit = max(0, min(12, (int) ($settings['post_author_card_limit'] ?? 6)));
        $author_card_orderby = sanitize_key((string) ($settings['post_author_card_orderby'] ?? 'views'));
        if (!in_array($author_card_orderby, ['views', 'date', 'modified', 'comment_count'], true)) {
            $author_card_orderby = 'views';
        }
        $author_card_style = sanitize_key((string) ($settings['post_author_card_style'] ?? 'card'));
        if (!in_array($author_card_style, ['card', 'list'], true)) {
            $author_card_style = 'card';
        }
        $maxheight_enabled = !empty($settings['article_maxheight_kg'])
            || !empty($settings['post_article_maxheight_kg'])
            || !empty($settings['post_maxheight_kg']);
        $maxheight = max(0, (int) ($settings['article_maxheight'] ?? $settings['post_article_maxheight'] ?? $settings['post_maxheight'] ?? 1000));
        if ($maxheight <= 0) {
            $maxheight = 1000;
        }

		$related_style = sanitize_key((string) ($settings['post_related_type'] ?? 'img'));
		if (!in_array($related_style, ['img', 'list', 'text'], true)) {
			$related_style = 'img';
		}

		$related_orderby = sanitize_key((string) ($settings['post_related_orderby'] ?? 'views'));
		if (!in_array($related_orderby, ['modified', 'date', 'views', 'like', 'comment_count', 'favorite', 'rand'], true)) {
			$related_orderby = 'views';
		}

        return [
            'reading_progress'         => !isset($settings['post_reading_progress']) || !empty($settings['post_reading_progress']),
            // Canonical + legacy breadcrumbs.
            'breadcrumbs'              => $breadcrumbs,
            'breadcrumbs_home'         => $breadcrumbs_home,
            'breadcrumbs_single_s'     => $breadcrumbs,
            'breadcrumbs_home_text'    => $breadcrumbs_home,
            'breadcrumbs_single_text'  => $breadcrumbs_single_text,
			// Canonical + legacy prev/next / time; canonical author card flag.
            'prevnext'                 => $prevnext,
            'prevnext_s'               => $prevnext,
			'authordesc'               => $authordesc,
			'hide_time'                => $hide_time,
            'single_hide_time_s'       => $hide_time,
            'article_image_cover'      => !isset($settings['post_article_image_cover']) || !empty($settings['post_article_image_cover']),
            'article_image_cover_scale'=> max(10, min(100, (int) ($settings['post_article_image_cover_scale'] ?? 35))),
            'article_slide_cover'      => !isset($settings['post_article_slide_cover']) || !empty($settings['post_article_slide_cover']),
            'article_video_cover'      => !isset($settings['post_article_video_cover']) || !empty($settings['post_article_video_cover']),
            'article_video_cover_scale'=> max(20, min(100, (int) ($settings['post_article_video_cover_scale'] ?? 56))),
            'lightbox'                 => !isset($settings['post_lightbox']) || !empty($settings['post_lightbox']),
            'lightbox_thumbs'          => !isset($settings['post_lightbox_thumbs']) || !empty($settings['post_lightbox_thumbs']),
            'lightbox_zoom'            => !isset($settings['post_lightbox_zoom']) || !empty($settings['post_lightbox_zoom']),
            'lightbox_full'            => !isset($settings['post_lightbox_full']) || !empty($settings['post_lightbox_full']),
            'lightbox_down'            => !empty($settings['post_lightbox_down']),
            'lightbox_play'            => !empty($settings['post_lightbox_play']),
			'related_enabled'          => !isset($settings['post_related_s']) || !empty($settings['post_related_s']),
			'related_count'            => max(4, min(12, (int) ($settings['post_related_n'] ?? 6))),
			'related_style'            => $related_style,
			'related_orderby'          => $related_orderby,
			'related_title'            => sanitize_text_field((string) ($settings['related_title'] ?? '相关推荐')),
            'like_enabled'             => !isset($settings['post_like_enabled']) || !empty($settings['post_like_enabled']),
            'favorite_enabled'         => !isset($settings['post_favorite_enabled']) || !empty($settings['post_favorite_enabled']),
            // Canonical + legacy share.
            'share_enabled'            => $share_enabled,
            'share_s'                  => $share_enabled,
            // Author card posts (legacy user_card_box defaults).
            'author_card_limit'        => $author_card_limit,
            'author_card_orderby'      => $author_card_orderby,
            'author_card_style'        => $author_card_style,
            // On-site wallet tipping.
            'rewards_enabled'          => $rewards_enabled,
            'post_rewards_s'           => $rewards_enabled,
            'rewards_text'             => $rewards_text,
            'rewards_btn_text'         => $rewards_text,
            'rewards_amounts'          => $rewards_amounts,
            'rewards_custom'           => !isset($settings['post_rewards_custom']) || !empty($settings['post_rewards_custom']),
            'rewards_min'              => $rewards_min,
            'rewards_max'              => $rewards_max,
            // Content max height (legacy article_maxheight_kg / article_maxheight).
            'maxheight_enabled'        => $maxheight_enabled,
            'maxheight'                => $maxheight,
            'copyright_enabled'        => !isset($settings['post_copyright_enabled']) || !empty($settings['post_copyright_enabled']),
            'copyright_text'           => (string) ($settings['post_copyright_text'] ?? ''),
            'button_toptext'           => sanitize_text_field((string) ($settings['post_button_toptext'] ?? '喜欢就支持一下吧')),
            'front_content'            => (string) ($settings['post_front_content'] ?? ''),
            'after_content'            => (string) ($settings['post_after_content'] ?? ''),
            'yiyan_header'             => !empty($settings['post_yiyan_header']),
            'yiyan_footer'             => !empty($settings['post_yiyan_footer']),
            'yiyan_box'                => !empty($settings['post_yiyan_box']),
            'default_views_min'        => max(0, min(9999, (int) ($settings['post_default_views_min'] ?? 20))),
            'default_views_max'        => max(1, min(9999, (int) ($settings['post_default_views_max'] ?? 50))),
            'default_likes_min'        => max(0, min(9999, (int) ($settings['post_default_likes_min'] ?? 5))),
            'default_likes_max'        => max(1, min(9999, (int) ($settings['post_default_likes_max'] ?? 15))),
            'print_enabled'            => !isset($settings['feature_print']) || !empty($settings['feature_print']),
            'pdf_export_enabled'       => !empty($settings['feature_pdf_export']),
        ];
    }

    public static function get_share_settings(): array {
        $settings = Settings::get_all();
        return [
            'enabled'              => !isset($settings['share_s']) || !empty($settings['share_s']),
            'wechat_appid'         => sanitize_text_field((string) ($settings['wechat_share_appid'] ?? '')),
            'wechat_timestamp'     => sanitize_text_field((string) ($settings['wechat_share_timestamp'] ?? '')),
            'wechat_nonce'         => sanitize_text_field((string) ($settings['wechat_share_nonce'] ?? '')),
            'wechat_signature'     => sanitize_text_field((string) ($settings['wechat_share_signature'] ?? '')),
            'poster_enabled'       => !empty($settings['post_share_poster_s']),
            'poster_qr_enabled'    => !empty($settings['post_share_poster_qr_s']),
            'poster_bg'            => (string) ($settings['post_share_poster_bg'] ?? ''),
            'social_items'         => is_array($settings['social_share_items'] ?? null) ? $settings['social_share_items'] : [],
            'copy_link_enabled'    => !isset($settings['post_share_copylink_s']) || !empty($settings['post_share_copylink_s']),
        ];
    }

    public static function get_submit_settings(): array {
        $settings = Settings::get_all();

        $money_setting = static function ($value, string $default): string {
            if (!is_string($value)) {
                return $default;
            }
            try {
                return \AKSRT\Ledger\AssetAmount::balance($value)->decimal();
            } catch (\InvalidArgumentException $e) {
                return $default;
            }
        };

        $title_min = max(1, min(100, (int) ($settings['post_article_title_strlen_limit_min'] ?? 5)));
        $title_max = max(5, min(200, (int) ($settings['post_article_title_strlen_limit_max'] ?? 30)));
        if ($title_max < $title_min) {
            $title_max = $title_min;
        }

        $review_mode = sanitize_key((string) ($settings['front_submit_review_mode'] ?? 'pending'));
        if (!in_array($review_mode, ['pending', 'publish', 'draft'], true)) {
            $review_mode = 'pending';
        }

        $editor_mode = sanitize_key((string) ($settings['front_submit_editor_mode'] ?? 'rich'));
        if (!in_array($editor_mode, ['rich', 'markdown', 'plain'], true)) {
            $editor_mode = 'rich';
        }

        return [
            'enabled'              => !isset($settings['front_submit_enabled']) || !empty($settings['front_submit_enabled']),
            'btn_text'             => sanitize_text_field((string) ($settings['post_article_btn_txte'] ?? '')) ?: __('发布文章', 'aksrt'),
            'title_min'            => $title_min,
            'title_max'            => $title_max,
            'title_placeholder'    => sanitize_text_field((string) ($settings['post_t_placeholder'] ?? '')) ?: __('请输入标题', 'aksrt'),
            'content_placeholder'  => sanitize_textarea_field((string) ($settings['post_c_placeholder'] ?? '')) ?: __('请输入内容', 'aksrt'),
            'allowed_cat_ids'      => is_array($settings['post_article_cat'] ?? null) ? array_values(array_filter(array_map('intval', $settings['post_article_cat']))) : [],
            'default_user_id'      => max(0, (int) ($settings['post_article_user'] ?? 0)),
            'guest_enabled'        => !empty($settings['front_submit_guest_enabled']),
            'allow_title'          => !isset($settings['front_submit_title']) || !empty($settings['front_submit_title']),
            'allow_content'        => !isset($settings['front_submit_content']) || !empty($settings['front_submit_content']),
            'allow_excerpt'        => !isset($settings['front_submit_excerpt']) || !empty($settings['front_submit_excerpt']),
            'allow_cover'          => !isset($settings['front_submit_cover']) || !empty($settings['front_submit_cover']),
            'allow_category'       => !isset($settings['front_submit_category']) || !empty($settings['front_submit_category']),
            'allow_tags'           => !isset($settings['front_submit_tags']) || !empty($settings['front_submit_tags']),
            'tags_s'               => !isset($settings['front_submit_tags']) || !empty($settings['front_submit_tags']),
            'cover_required'       => !empty($settings['front_submit_cover_required']),
            'max_images'           => max(0, min(50, (int) ($settings['front_submit_max_images'] ?? 5))),
            'review_mode'          => $review_mode,
            'editor_mode'          => $editor_mode,
            'draft_save'           => !isset($settings['front_submit_draft_save']) || !empty($settings['front_submit_draft_save']),
            'leave_warning'        => !isset($settings['front_submit_leave_warning']) || !empty($settings['front_submit_leave_warning']),
            'pay_free_s'           => !isset($settings['post_article_pay_free_s']) || !empty($settings['post_article_pay_free_s']),
            'pay_price_min'        => $money_setting($settings['post_article_pay_price_min'] ?? '0.00', '0.00'),
            'pay_price_max'        => $money_setting($settings['post_article_pay_price_max'] ?? '100.00', '100.00'),
            'pay_vip_price_s'      => !isset($settings['post_article_pay_vip_price_s']) || !empty($settings['post_article_pay_vip_price_s']),
            'pay_vip_1_enabled'    => !empty($settings['pay_user_vip_1_s']),
            'pay_vip_2_enabled'    => !empty($settings['pay_user_vip_2_s']),
            'pay_vip_1_discount'   => max(0, min(100, (int) ($settings['post_article_pay_vip_1_discount'] ?? 80))),
            'pay_vip_2_discount'   => max(0, min(100, (int) ($settings['post_article_pay_vip_2_discount'] ?? 50))),
            'custom_filter_s'      => !isset($settings['post_article_custom_filter_s']) || !empty($settings['post_article_custom_filter_s']),
        ];
    }

    public static function get_comment_display_settings(): array {
        $settings = Settings::get_all();
        $order = sanitize_key((string) ($settings['comment_order'] ?? 'desc'));
        if (!in_array($order, ['asc', 'desc'], true)) {
            $order = 'desc';
        }

        $empty_text = trim((string) ($settings['comment_empty_text'] ?? ''));
        $submit_text = trim((string) ($settings['comment_submit_text'] ?? ''));
        $box_placeholder = trim((string) ($settings['comment_text'] ?? ''));
        $title = trim((string) ($settings['comment_title'] ?? ''));

        return [
            'order'              => $order,
            'pagination_mode'    => self::get_comment_pagination_mode(),
            'paging_ajax_ias'    => !isset($settings['comment_paging_ajax_ias_s']) || !empty($settings['comment_paging_ajax_ias_s']),
            'paging_ajax_ias_max'=> max(0, min(10, (int) ($settings['comment_paging_ajax_ias_max'] ?? 3))),
            'per_page'           => max(5, min(100, (int) ($settings['comment_per_page'] ?? 20))),
            'nested_depth'       => max(1, min(10, (int) ($settings['comment_nested_depth'] ?? 3))),
            'require_login'      => Settings::comment_requires_registration(),
            'avatar_size'        => max(24, min(96, (int) ($settings['comment_avatar_size'] ?? 48))),
            'empty_text'         => $empty_text !== '' ? $empty_text : __('暂无评论，来做第一个评论的人吧~', 'aksrt'),
            'toolbar'            => [
                'code'       => !isset($settings['comment_code']) || !empty($settings['comment_code']),
                'image'      => !isset($settings['comment_img']) || !empty($settings['comment_img']),
                'link'       => !empty($settings['comment_link']),
                'upload_img' => function_exists('aksrt_user_can') && aksrt_user_can('upload_comment_image', get_current_user_id()),
            ],
            'like_enabled'       => !isset($settings['comment_like_s']) || !empty($settings['comment_like_s']),
            'author_tag'         => !isset($settings['comment_author_tag']) || !empty($settings['comment_author_tag']),
            'corderby'           => !isset($settings['comment_corderby']) || !empty($settings['comment_corderby']),
            'edit_window'        => max(0, min(1440, (int) ($settings['comment_edit_window'] ?? 10))),
            'submit_text'        => $submit_text !== '' ? $submit_text : __('提交评论', 'aksrt'),
            'box_placeholder'    => $box_placeholder !== '' ? $box_placeholder : __('说点什么吧...', 'aksrt'),
            'title'              => $title !== '' ? $title : __('评论', 'aksrt'),
            // Extended legacy-parity settings.
            'close_comments'     => !empty($settings['comment_close_comments']),
            'hot_threshold'      => max(1, min(999, (int) ($settings['comment_hot_threshold'] ?? 10))),
            'user_url'           => !empty($settings['comment_user_url_s']),
            'city_s'             => !isset($settings['comment_city_s']) || !empty($settings['comment_city_s']),
            'city_type'          => self::normalize_comment_city_type((string) ($settings['comment_city_type'] ?? 'province_city')),
        ];
    }

    private static function normalize_comment_city_type(string $type): string {
        $type = sanitize_key($type);
        // Map legacy legacy pro/city labels.
        if ($type === 'pro') {
            return 'province';
        }
        if ($type === 'city') {
            return 'province_city';
        }
        return in_array($type, ['province_city', 'province', 'country_province'], true)
            ? $type
            : 'province_city';
    }


    public static function apply_list_orderby($query): void {
        if (is_admin() || !($query instanceof \WP_Query) || !$query->is_main_query()) {
            return;
        }
        if (!$query->is_home() && !$query->is_archive()) {
            return;
        }
        if ($query->get('orderby')) {
            return;
        }

        $orderby = sanitize_key((string) (self::get_post_list_style_settings()['list_orderby'] ?? 'modified'));
        if ($orderby === '' || $orderby === 'default') {
            return;
        }
        if (in_array($orderby, ['date', 'modified'], true)) {
            $query->set('orderby', $orderby);
            $query->set('order', 'DESC');
        }
    }

    public static function apply_list_per_page($query): void {
        unset($query);
    }

    public static function get_archive_layout(): string {
        $settings = self::get_post_list_style_settings();
        return ($settings['list_type'] ?? 'thumb') === 'card' ? 'card' : 'list';
    }

    public static function get_post_pagination_mode(): string {
        $settings = Settings::get_all();

        if (!self::is_list_paging_ajax($settings)) {
            return 'numbered';
        }
        return self::is_list_paging_ajax_ias($settings) ? 'infinite' : 'load_more';
    }

    /**
     * Whether list pagination uses AJAX append (legacy paging_ajax_s).
     *
     * @param array<string,mixed>|null $settings
     */
    public static function is_list_paging_ajax(?array $settings = null): bool {
        $settings = $settings ?? Settings::get_all();
        $raw = $settings['paging_ajax_s'] ?? '1';
        if (is_bool($raw)) {
            return $raw;
        }
        return (string) $raw === '1' || (string) $raw === 'true';
    }

    /**
     * Whether AJAX list paging auto-loads on scroll (legacy paging_ajax_ias_s).
     *
     * @param array<string,mixed>|null $settings
     */
    public static function is_list_paging_ajax_ias(?array $settings = null): bool {
        $settings = $settings ?? Settings::get_all();
        if (!self::is_list_paging_ajax($settings)) {
            return false;
        }
        return !array_key_exists('paging_ajax_ias_s', $settings) || !empty($settings['paging_ajax_ias_s']);
    }

    public static function get_comment_pagination_mode(): string {
        $mode = (string) Settings::get_value('comment_pagination_type', 'numbered');
        if ($mode === 'page') {
            $mode = 'numbered';
        }
        return in_array($mode, ['numbered', 'load_more', 'infinite'], true) ? $mode : 'numbered';
    }

    private static function sanitize_custom_filter_defs($raw): array {
        if (!is_array($raw)) {
            return [];
        }
        $result = [];
        foreach ($raw as $item) {
            if (!is_array($item)) continue;
            $name = sanitize_text_field((string) ($item['name'] ?? ''));
            $key  = sanitize_key((string) ($item['key'] ?? ''));
            if ($name === '' || $key === '') continue;
            $vals = [];
            foreach ((array) ($item['vals'] ?? []) as $val) {
                if (!is_array($val)) continue;
                $vkey = sanitize_key((string) ($val['key'] ?? ''));
                $vname = sanitize_text_field((string) ($val['name'] ?? ''));
                if ($vkey === '' || $vname === '') continue;
                $vals[] = ['key' => $vkey, 'name' => $vname];
            }
            $result[] = ['name' => $name, 'key' => $key, 'vals' => $vals];
        }
        return $result;
    }

    private static function sanitize_cat_custom_filter($raw): array {
        if (!is_array($raw)) {
            return [];
        }
        $result = [];
        foreach ($raw as $item) {
            if (!is_array($item)) continue;
            $cats = is_array($item['cats'] ?? null) ? array_values(array_filter(array_map('absint', $item['cats']), static fn($id) => $id > 0)) : [];
            if (empty($cats)) continue;
            $filters_raw = trim((string) ($item['custom_filters'] ?? ''));
            $filters = $filters_raw === '' ? [] : array_values(array_filter(array_map('sanitize_key', preg_split('/[,，\s]+/', $filters_raw) ?: [])));
            $result[] = [
                'cats'           => $cats,
                'cat_s'          => !isset($item['cat_s']) || !empty($item['cat_s']),
                'tag_s'          => !empty($item['tag_s']),
                'orderby_s'      => !isset($item['orderby_s']) || !empty($item['orderby_s']),
                'custom_filters' => $filters,
            ];
        }
        return $result;
    }
}