<?php
/**
 * Settings home/cms/footer/payment helper.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

class AKSRT_Settings_Home_Cms {

    public static function get_footer_settings(): array {
        $defaults = [
            'contacts'        => [],
            'quick_links'     => [],
            'more_links'      => [],
            'hot_categories'  => 5,
            'copyright_text'  => '',
            'layout_template' => 'template_1',
        ];
        $footer = get_option('aksrt_footer_settings', []);
        $merged = array_merge($defaults, is_array($footer) ? $footer : []);

        $s = AKSRT_Settings::get_all();
        $bridge_keys = [
            'footer_columns', 'footer_copyright', 'footer_icp', 'icp_number',
            'footer_police', 'police_number',
            'footer_theme_custom', 'footer_theme_bg_custom', 'footer_theme_bg', 'footer_theme_color_custom',
            'footer_contact_wechat_img', 'footer_contact_qq', 'footer_contact_weibo', 'footer_contact_email',
        ];
        foreach ($bridge_keys as $key) {
            if (isset($s[$key])) {
                $merged[$key] = $s[$key];
            }
        }
        return $merged;
    }

    public static function get_footer_contacts(): array {
        $footer = self::get_footer_settings();
        return array_filter($footer['contacts'], fn($c) => !empty($c['enabled']));
    }

    public static function get_quick_links(): array {
        $footer = self::get_footer_settings();
        $links = array_filter($footer['quick_links'], fn($l) => !empty($l['enabled']));
        usort($links, fn($a, $b) => ($a['sort_order'] ?? 0) <=> ($b['sort_order'] ?? 0));
        return array_values($links);
    }

    public static function get_more_links(): array {
        $footer = self::get_footer_settings();
        $links = array_filter($footer['more_links'], fn($l) => !empty($l['enabled']));
        usort($links, fn($a, $b) => ($a['sort_order'] ?? 0) <=> ($b['sort_order'] ?? 0));
        return array_values($links);
    }

    public static function get_hot_categories_count(): int {
        $footer = self::get_footer_settings();
        return max(1, min(20, (int) ($footer['hot_categories'] ?? 5)));
    }

    public static function get_copyright_text(): string {
        $footer = self::get_footer_settings();
        return $footer['copyright_text'] ?: '';
    }

    public static function get_footer_brand_settings(): array {
        $f = self::get_footer_settings();
        return [
            'm_s'         => is_array($f['footer_t1_m_s'] ?? null) ? $f['footer_t1_m_s'] : ['pc', 'mobile'],
            'img'         => (string) ($f['footer_t1_img'] ?? ''),
            'img_dark'    => (string) ($f['footer_t1_img_dark'] ?? ''),
            'title'       => (string) ($f['footer_t1_t'] ?? ''),
            'custom_code' => (string) ($f['fcode_t1_code'] ?? ''),
        ];
    }

    public static function get_footer_contact_extended_settings(): array {
        $f = self::get_footer_settings();
        return [
            'm_s'        => is_array($f['footer_contact_m_s'] ?? null) ? $f['footer_contact_m_s'] : ['pc', 'mobile'],
            'wechat_img' => (string) ($f['footer_contact_wechat_img'] ?? ''),
            'qq'         => (string) ($f['footer_contact_qq'] ?? ''),
            'weibo'      => (string) ($f['footer_contact_weibo'] ?? ''),
            'email'      => (string) ($f['footer_contact_email'] ?? ''),
            'more'       => is_array($f['footer_contact_more'] ?? null) ? $f['footer_contact_more'] : [],
            'code_1'     => (string) ($f['fcode_t2_code_1'] ?? ''),
            'code_2'     => (string) ($f['fcode_t2_code_2'] ?? ''),
        ];
    }

    public static function get_footer_mini_img_settings(): array {
        $f = self::get_footer_settings();
        $raw_items = is_array($f['footer_mini_img'] ?? null) ? $f['footer_mini_img'] : [];
        $items = [];
        foreach ($raw_items as $item) {
            if (!is_array($item)) {
                continue;
            }
            $img = (string) ($item['img'] ?? $item['image'] ?? '');
            if ($img === '') {
                continue;
            }
            $items[] = [
                'img'   => $img,
                'image' => $img,
                'text'  => (string) ($item['text'] ?? $item['label'] ?? ''),
                'label' => (string) ($item['label'] ?? $item['text'] ?? ''),
            ];
        }
        return [
            'm_s'   => is_array($f['footer_mini_img_m_s'] ?? null) ? $f['footer_mini_img_m_s'] : ['pc', 'mobile'],
            'items' => $items,
        ];
    }

    public static function get_footer_customize_code(): string {
        $f = self::get_footer_settings();
        return (string) ($f['fcode_customize_code'] ?? '');
    }

    public static function get_footer_theme_config(): array {
        $s = AKSRT_Settings::get_all();
        return [
            'custom'       => !empty($s['footer_theme_custom']),
            'bg_custom'    => sanitize_hex_color((string) ($s['footer_theme_bg_custom'] ?? '')) ?: '',
            'bg'           => sanitize_hex_color((string) ($s['footer_theme_bg'] ?? '')) ?: '',
            'color_custom' => sanitize_hex_color((string) ($s['footer_theme_color_custom'] ?? '')) ?: '',
        ];
    }

    public static function get_site_profile(): string {
        return 'cms';
    }

    public static function get_cms_features(): array {
        $defaults = [
            'resource_cpt_enabled'    => true,
            'download_login'          => true,
            'download_credit'         => true,
            'download_captcha'        => false,
            'search_include_resource' => true,
        ];
        $s = AKSRT_Settings::get_all();
        $saved = isset($s['cms_features']) && is_array($s['cms_features']) ? $s['cms_features'] : [];
        return array_merge($defaults, $saved);
    }

    public static function cms_feature(string $key, $default = null) {
        $f = self::get_cms_features();
        return array_key_exists($key, $f) ? $f[$key] : $default;
    }

    public static function homepage_allowed_sorts(): array {
        return ['modified', 'date', 'views', 'likes', 'comments', 'favorites', 'downloads', 'rand'];
    }

    public static function homepage_sort_labels(): array {
        return [
            'modified'  => __('更新', 'aksrt'),
            'date'      => __('发布', 'aksrt'),
            'views'     => __('浏览', 'aksrt'),
            'likes'     => __('点赞', 'aksrt'),
            'comments'  => __('评论', 'aksrt'),
            'favorites' => __('收藏', 'aksrt'),
            'downloads' => __('下载', 'aksrt'),
            'rand'      => __('随机', 'aksrt'),
        ];
    }

    public static function get_homepage_fixed_settings(): array {
        $s = AKSRT_Settings::get_all();
        $allowed_sorts = self::homepage_allowed_sorts();

        // Zibll-aligned primary list contract.
        $main_list_enabled = array_key_exists('home_posts_list_s', $s)
            ? !empty($s['home_posts_list_s'])
            : (!isset($s['home_posts_list_enabled']) || !empty($s['home_posts_list_enabled']));

        $sort_bar_enabled = array_key_exists('home_list1_orderby_s', $s)
            ? !empty($s['home_list1_orderby_s'])
            : (!isset($s['home_list_sort_enabled']) || !empty($s['home_list_sort_enabled']));

        $orderby_option = [];
        if (isset($s['home_list1_orderby_option']) && is_array($s['home_list1_orderby_option'])) {
            $orderby_option = $s['home_list1_orderby_option'];
        }
        $default_sort = sanitize_key((string) ($orderby_option['orderby'] ?? $s['homepage_default_sort'] ?? 'date'));
        if (!in_array($default_sort, $allowed_sorts, true)) {
            $default_sort = 'date';
        }
        $sort_options_raw = $orderby_option['options'] ?? $s['home_list_sort_options'] ?? [];
        if (!is_array($sort_options_raw)) {
            $sort_options_raw = [];
        }
        $sort_options = self::normalize_sort_options($sort_options_raw);
        if (!in_array($default_sort, $sort_options, true)) {
            array_unshift($sort_options, $default_sort);
            $sort_options = array_values(array_unique($sort_options));
        }

        $list_title = '';
        if (array_key_exists('index_list_title', $s)) {
            $list_title = sanitize_text_field((string) $s['index_list_title']);
        } elseif (array_key_exists('home_list_title', $s)) {
            $list_title = sanitize_text_field((string) $s['home_list_title']);
        }
        if ($list_title === '') {
            $list_title = __('最新发布', 'aksrt');
        }

        $exclude_posts = self::normalize_int_array(
            $s['home_exclude_posts'] ?? $s['home_exclude_post_ids'] ?? []
        );
        $exclude_cats = self::normalize_int_array(
            $s['home_exclude_cats'] ?? $s['home_exclude_category_ids'] ?? []
        );

        $tabs_raw = [];
        if (isset($s['home_lists']) && is_array($s['home_lists'])) {
            $tabs_raw = $s['home_lists'];
        } elseif (isset($s['homepage_tabs']) && is_array($s['homepage_tabs'])) {
            $tabs_raw = $s['homepage_tabs'];
        }

        $settings = [
            // Canonical Zibll keys.
            'home_posts_list_s'                  => $main_list_enabled,
            'home_list1_orderby_s'               => $sort_bar_enabled,
            'home_list1_orderby_option'          => [
                'orderby' => $default_sort,
                'options' => $sort_options,
            ],
            'index_list_title'                   => $list_title,
            'home_exclude_posts'                 => $exclude_posts,
            'home_exclude_cats'                  => $exclude_cats,
            'home_lists'                         => self::normalize_homepage_tabs($tabs_raw),

            // Convenience aliases for existing PHP/Vue callers during cutover of this slice.
            'home_posts_list_enabled'            => $main_list_enabled,
            'home_list_sort_enabled'             => $sort_bar_enabled,
            'homepage_default_sort'              => $default_sort,
            'home_list_sort_options'             => $sort_options,
            'home_list_title'                    => $list_title,
            'home_exclude_post_ids'              => $exclude_posts,
            'home_exclude_category_ids'          => $exclude_cats,
            'homepage_tabs'                      => self::normalize_homepage_tabs($tabs_raw),

            // AKSRT presentation extras.
            'homepage_card_style'                => isset($s['homepage_card_style']) ? sanitize_key((string) $s['homepage_card_style']) : 'default',
            'homepage_multi_thumb_enabled'       => !empty($s['homepage_multi_thumb_enabled']),
            'homepage_multi_thumb_min_images'    => (int) ($s['homepage_multi_thumb_min_images'] ?? 3),
            'homepage_sidebar_mini_enabled'      => !isset($s['homepage_sidebar_mini_enabled']) || !empty($s['homepage_sidebar_mini_enabled']),
            'homepage_default_view'              => isset($s['homepage_default_view']) ? sanitize_key((string) $s['homepage_default_view']) : 'list',
            'homepage_sort_ajax_enabled'         => !isset($s['homepage_sort_ajax_enabled']) || !empty($s['homepage_sort_ajax_enabled']),
            'homepage_sticky_tabs_enabled'       => !isset($s['homepage_sticky_tabs_enabled']) || !empty($s['homepage_sticky_tabs_enabled']),
            'home_list_sort_dropdown'            => !empty($s['home_list_sort_dropdown']),
            'homepage_tab_posts_per_page'        => max(1, min(20, (int) ($s['homepage_tab_posts_per_page'] ?? 6))),
            'homepage_tab_limit'                 => max(1, min(12, (int) ($s['homepage_tab_limit'] ?? 4))),
            'homepage_module_hero_enabled'       => !isset($s['homepage_module_hero_enabled']) || !empty($s['homepage_module_hero_enabled']),
            'homepage_module_banner_enabled'     => !isset($s['homepage_module_banner_enabled']) || !empty($s['homepage_module_banner_enabled']),
        ];

        if (!in_array($settings['homepage_card_style'], ['default', 'style2', 'style3'], true)) {
            $settings['homepage_card_style'] = 'default';
        }

        $settings['homepage_multi_thumb_min_images'] = max(2, min(4, $settings['homepage_multi_thumb_min_images']));

        if (!in_array($settings['homepage_default_view'], ['list', 'card'], true)) {
            $settings['homepage_default_view'] = 'list';
        }

        return $settings;
    }

    /**
     * Homepage always uses ordinary posts. Kept for API stability.
     *
     * @return string Always 'post'.
     */
    public static function homepage_content_model(): string {
        return 'post';
    }

    public static function homepage_tabs(): array {
        $settings = self::get_homepage_fixed_settings();
        return $settings['home_lists'];
    }

    /** @return array<int, array{term_id:int,title:string,orderby:string,enabled:bool}> */
    public static function home_lists(): array {
        return self::homepage_tabs();
    }

    public static function homepage_card_style(): string {
        $settings = self::get_homepage_fixed_settings();
        return $settings['homepage_card_style'];
    }

    public static function homepage_multi_thumb_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['homepage_multi_thumb_enabled']);
    }

    public static function homepage_multi_thumb_min_images(): int {
        $settings = self::get_homepage_fixed_settings();
        return (int) $settings['homepage_multi_thumb_min_images'];
    }

    public static function homepage_sidebar_mini_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['homepage_sidebar_mini_enabled']);
    }

    public static function homepage_default_sort(): string {
        $settings = self::get_homepage_fixed_settings();
        return $settings['home_list1_orderby_option']['orderby'] ?? 'date';
    }

    public static function homepage_default_view(): string {
        $settings = self::get_homepage_fixed_settings();
        return $settings['homepage_default_view'];
    }

    public static function homepage_sort_ajax_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['homepage_sort_ajax_enabled']);
    }

    public static function homepage_sticky_tabs_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['homepage_sticky_tabs_enabled']);
    }

    public static function home_posts_list_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['home_posts_list_s']);
    }

    public static function home_list_title(): string {
        $settings = self::get_homepage_fixed_settings();
        return (string) $settings['index_list_title'];
    }

    public static function home_list_sort_enabled(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['home_list1_orderby_s']);
    }

    public static function home_list_sort_options(): array {
        $settings = self::get_homepage_fixed_settings();
        return $settings['home_list1_orderby_option']['options'] ?? ['modified', 'date', 'views', 'likes', 'comments'];
    }

    public static function home_list_sort_dropdown(): bool {
        $settings = self::get_homepage_fixed_settings();
        return !empty($settings['home_list_sort_dropdown']);
    }

    public static function home_exclude_post_ids(): array {
        $settings = self::get_homepage_fixed_settings();
        return $settings['home_exclude_posts'];
    }

    public static function home_exclude_category_ids(): array {
        $settings = self::get_homepage_fixed_settings();
        return $settings['home_exclude_cats'];
    }

    public static function homepage_tab_posts_per_page(): int {
        $settings = self::get_homepage_fixed_settings();
        return (int) $settings['homepage_tab_posts_per_page'];
    }

    public static function homepage_tab_limit(): int {
        $settings = self::get_homepage_fixed_settings();
        return (int) $settings['homepage_tab_limit'];
    }

    public static function get_paid_content_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_paid_content_settings();
    }

    public static function get_content_coupon_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_content_coupon_settings();
    }

    public static function get_payment_recharge_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_payment_recharge_settings();
    }

    public static function get_payment_vip_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_payment_vip_settings();
    }

    public static function get_payment_revenue_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_payment_revenue_settings();
    }

    public static function get_payment_affiliate_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_payment_affiliate_settings();
    }

    public static function get_payment_gateway_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_payment_gateway_settings();
    }

    public static function get_order_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_order_settings();
    }

    public static function get_card_pass_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_card_pass_settings();
    }

    public static function get_withdrawal_settings(): array {
        return AKSRT_Settings_Payment_Runtime::get_withdrawal_settings();
    }

    private static function normalize_sort_options(array $raw): array {
        $allowed = self::homepage_allowed_sorts();
        $result = [];
        $seen   = [];

        foreach ($raw as $key) {
            $key = sanitize_key((string) $key);
            if (in_array($key, $allowed, true) && !isset($seen[$key])) {
                $result[] = $key;
                $seen[$key] = true;
            }
        }

        if (empty($result)) {
            $result = ['modified', 'date', 'views', 'likes', 'comments'];
        }

        return $result;
    }

    private static function normalize_int_array($raw): array {
        if (!is_array($raw)) {
            return [];
        }
        return array_values(array_filter(array_map('absint', $raw), static fn($v) => $v > 0));
    }

    private static function normalize_homepage_tabs(array $raw_tabs): array {
        $allowed_orderby = self::homepage_allowed_sorts();
        $tabs = [];

        foreach ($raw_tabs as $tab) {
            if (!is_array($tab)) {
                continue;
            }

            $term_id = absint($tab['term_id'] ?? 0);
            if ($term_id <= 0) {
                continue;
            }

            $orderby = sanitize_key($tab['orderby'] ?? 'date');
            if (!in_array($orderby, $allowed_orderby, true)) {
                $orderby = 'date';
            }

            $tabs[] = [
                'term_id' => $term_id,
                'title'   => sanitize_text_field($tab['title'] ?? ''),
                'orderby' => $orderby,
                'enabled' => !empty($tab['enabled']),
            ];
        }

        return $tabs;
    }

    private static function parse_slug_list(string $raw, array $fallback = []): array {
        $items = preg_split('/[\s,]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $normalized = [];

        foreach ((array) $items as $item) {
            $slug = sanitize_key((string) $item);
            if ($slug !== '' && !in_array($slug, $normalized, true)) {
                $normalized[] = $slug;
            }
        }

        return !empty($normalized) ? $normalized : $fallback;
    }

    private static function count_structured_lines(string $raw): int {
        $lines = preg_split('/[\r\n]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $count = 0;

        foreach ((array) $lines as $line) {
            if (trim((string) $line) !== '') {
                $count++;
            }
        }

        return $count;
    }
}