<?php
/**
 * Settings user runtime helper.
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

class AKSRT_Settings_User_Runtime {

    /**
     * Public user-home display settings.
     *
     * @return array
     */
    public static function get_user_home_settings(): array {
        $settings = AKSRT_Settings::get_all();
        $allowed_tabs = ['posts', 'comments', 'favorites', 'credits', 'product', 'plate', 'forum', 'follow'];

        $parse_csv = function (string $key, string $fallback) use ($settings, $allowed_tabs): array {
            $raw = $settings[$key] ?? $fallback;
            $items = is_array($raw) ? $raw : preg_split('/[\s,]+/', (string) $raw, -1, PREG_SPLIT_NO_EMPTY);
            $clean = [];
            foreach ((array) $items as $v) {
                $v = sanitize_key((string) $v);
                if (in_array($v, $allowed_tabs, true) && !in_array($v, $clean, true)) {
                    $clean[] = $v;
                }
            }
            return $clean;
        };

        $normalized_tabs = $parse_csv('user_home_tabs', 'posts,comments,favorites');
        if (empty($normalized_tabs)) {
            $normalized_tabs = ['posts', 'comments', 'favorites'];
        }

        $raw_order = $parse_csv('user_home_tabs_order', '');
        $ordered = [];
        foreach ($raw_order as $tab) {
            if (in_array($tab, $normalized_tabs, true)) {
                $ordered[] = $tab;
            }
        }
        foreach ($normalized_tabs as $tab) {
            if (!in_array($tab, $ordered, true)) {
                $ordered[] = $tab;
            }
        }

        $pc_hide     = $parse_csv('user_home_tabs_pc_hide', '');
        $mobile_hide = $parse_csv('user_home_tabs_mobile_hide', '');

        return [
            'tabs'             => $normalized_tabs,
            'tabs_order'       => $ordered,
            'tabs_pc_hide'     => $pc_hide,
            'tabs_mobile_hide' => $mobile_hide,
            'sidebar'          => !isset($settings['user_home_sidebar']) || !empty($settings['user_home_sidebar']),
            'cover'            => !isset($settings['user_home_cover']) || !empty($settings['user_home_cover']),
            'follow'           => !isset($settings['user_home_follow']) || !empty($settings['user_home_follow']),
            'posts_per_page'   => max(5, min(50, (int) ($settings['user_home_posts_per_page'] ?? 10))),
            'avatar'           => !isset($settings['user_home_avatar']) || !empty($settings['user_home_avatar']),
            'name'             => !isset($settings['user_home_name']) || !empty($settings['user_home_name']),
            'desc'             => !isset($settings['user_home_desc']) || !empty($settings['user_home_desc']),
            'stats'            => !isset($settings['user_home_stats']) || !empty($settings['user_home_stats']),
            'social'           => !isset($settings['user_home_social']) || !empty($settings['user_home_social']),
            'tab_swiper'       => !empty($settings['author_main_tab_swiper']),
            'message'          => !isset($settings['user_home_message']) || !empty($settings['user_home_message']),
            'private'          => !isset($settings['user_home_private']) || !empty($settings['user_home_private']),
            'paging_ajax'      => !isset($settings['user_home_paging_ajax']) || !empty($settings['user_home_paging_ajax']),
        ];
    }

    /**
     * Private user-center display settings.
     *
     * @return array{tabs:string[],avatar_upload:bool,cover_upload:bool,social_links:bool}
     */
    public static function get_user_center_settings(): array {
        $settings = AKSRT_Settings::get_all();
        $raw_tabs = $settings['user_center_tabs'] ?? 'profile,posts,comments,credits,favorites';
        $tabs = is_array($raw_tabs)
            ? $raw_tabs
            : preg_split('/[\s,]+/', (string) $raw_tabs, -1, PREG_SPLIT_NO_EMPTY);

        $allowed_tabs = ['profile', 'posts', 'comments', 'favorites', 'credits'];
        $normalized_tabs = ['profile'];

        foreach ((array) $tabs as $tab) {
            $tab = sanitize_key((string) $tab);
            if ($tab === 'profile') {
                continue;
            }

            if (in_array($tab, $allowed_tabs, true) && !in_array($tab, $normalized_tabs, true)) {
                $normalized_tabs[] = $tab;
            }
        }

        if (!in_array('posts', $normalized_tabs, true) && !in_array('comments', $normalized_tabs, true)) {
            $normalized_tabs[] = 'posts';
        }

        return [
            'tabs'          => $normalized_tabs,
            'avatar_upload' => !isset($settings['user_avatar_upload']) || !empty($settings['user_avatar_upload']),
            'cover_upload'  => !isset($settings['user_cover_upload']) || !empty($settings['user_cover_upload']),
            'social_links'  => !isset($settings['user_social_links']) || !empty($settings['user_social_links']),
        ];
    }

    /**
     * User identity, level, badge, and report governance settings.
     *
     * @return array{
     *   verify:array{enabled:bool,public_display:bool,badge_text:string,accept_email_verified:bool,require_manual_review:bool},
     *   level:array{enabled:bool,public_display:bool,source:string,label_prefix:string,thresholds:array<int,int>},
     *   badge:array{enabled:bool,public_display:bool,limit:int,dictionary:array<int,array{slug:string,label:string,tone:string}>},
     *   report:array{enabled:bool,public_entry:bool,public_notice:bool,ban_notice_text:string,categories:array<int,array{slug:string,label:string}>}
     * }
     */
    public static function get_user_identity_settings(): array {
        $settings = AKSRT_Settings::get_all();
        $verify_badge_text = trim((string) ($settings['user_verify_badge_text'] ?? ''));
        $level_prefix = trim((string) ($settings['user_level_prefix'] ?? ''));
        $ban_notice_text = trim((string) ($settings['user_report_ban_notice_text'] ?? ''));

        return [
            'verify' => [
                'enabled'               => !isset($settings['user_verify_enabled']) || !empty($settings['user_verify_enabled']),
                'public_display'        => !isset($settings['user_verify_public_display']) || !empty($settings['user_verify_public_display']),
                'badge_text'            => $verify_badge_text !== '' ? $verify_badge_text : __('已认证', 'aksrt'),
                'accept_email_verified' => !isset($settings['user_verify_accept_email_verified']) || !empty($settings['user_verify_accept_email_verified']),
                'require_manual_review' => !empty($settings['user_verify_require_manual_review']),
            ],
            'level' => [
                'enabled'        => !empty($settings['user_level_enabled']),
                'public_display' => !isset($settings['user_level_public_display']) || !empty($settings['user_level_public_display']),
                'source'         => (function() use ($settings) {
                    $v = $settings['user_level_source'] ?? 'credits_balance';
                    return in_array($v, ['credits_balance', 'manual_meta'], true) ? $v : 'credits_balance';
                })(),
                'label_prefix'   => $level_prefix !== '' ? $level_prefix : 'Lv.',
                'thresholds'     => self::parse_level_thresholds((string) ($settings['user_level_thresholds'] ?? "1|0\n2|30\n3|100\n4|300")),
            ],
            'badge' => [
                'enabled'        => !empty($settings['user_badge_enabled']),
                'public_display' => !isset($settings['user_badge_public_display']) || !empty($settings['user_badge_public_display']),
                'limit'          => max(1, min(8, (int) ($settings['user_badge_limit'] ?? 3))),
                'dictionary'     => self::parse_badge_dictionary((string) ($settings['user_badge_dictionary'] ?? "founder|创始成员|warning\nstaff|站务团队|info")),
            ],
            'report' => [
                'enabled'         => !empty($settings['user_report_enabled']),
                'public_entry'    => !isset($settings['user_report_public_entry']) || !empty($settings['user_report_public_entry']),
                'public_notice'   => !isset($settings['user_report_public_notice']) || !empty($settings['user_report_public_notice']),
                'ban_notice_text' => $ban_notice_text !== '' ? $ban_notice_text : __('当前账号处于限制状态，部分互动能力已关闭。', 'aksrt'),
                'categories'      => self::parse_report_categories((string) ($settings['user_report_categories'] ?? "spam|垃圾信息\nabuse|人身攻击\ncopyright|版权投诉")),
            ],
        ];
    }

    /**
     * 禁封设置
     */
    public static function ban_settings(): array {
        $settings = AKSRT_Settings::get_all();
        $reasons_raw = (string) ($settings['ban_preset_reason'] ?? "spam|垃圾信息\nabuse|人身攻击\nviolation|违规操作");
        $reasons = [];
        foreach (preg_split('/\r\n|\r|\n/', $reasons_raw) as $line) {
            $line = trim($line);
            if ($line === '') {
                continue;
            }
            $parts = explode('|', $line, 2);
            $reasons[] = [
                'slug' => sanitize_key($parts[0]),
                'name' => sanitize_text_field($parts[1] ?? $parts[0]),
            ];
        }
        $appeal_keys_raw = (string) ($settings['ban_appeal_keys'] ?? '');
        $appeal_keys = array_filter(array_map('trim', explode(',', $appeal_keys_raw)));

        return [
            'reasons'     => $reasons,
            'appeal_desc' => wp_kses_post((string) ($settings['ban_appeal_desc'] ?? '')),
            'appeal_keys' => array_values($appeal_keys),
        ];
    }

    /**
     * 举报设置
     */
    public static function report_settings(): array {
        $settings = AKSRT_Settings::get_all();
        return [
            'enabled'         => !empty($settings['user_report_enabled']),
            'public_entry'    => !empty($settings['user_report_public_entry']),
            'public_notice'   => !empty($settings['user_report_public_notice']),
            'ban_notice_text' => sanitize_text_field((string) ($settings['user_report_ban_notice_text'] ?? '')),
            'img_enabled'     => !empty($settings['user_report_img_s']),
            'desc'            => wp_kses_post((string) ($settings['user_report_desc'] ?? '')),
        ];
    }

    /**
     * @return array<int,int>
     */
    public static function parse_level_thresholds(string $raw): array {
        $lines = preg_split('/[\r\n]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $thresholds = [];

        foreach ((array) $lines as $line) {
            $parts = preg_split('/[|:,]/', trim($line), 2);
            if (!is_array($parts) || count($parts) < 2) {
                continue;
            }

            $level = (int) trim((string) $parts[0]);
            $value = (int) trim((string) $parts[1]);
            if ($level <= 0 || $value < 0) {
                continue;
            }

            $thresholds[$level] = $value;
        }

        if (empty($thresholds)) {
            $thresholds = [1 => 0, 2 => 30, 3 => 100, 4 => 300];
        }

        ksort($thresholds, SORT_NUMERIC);
        return $thresholds;
    }

    /**
     * @return array<int,array{slug:string,label:string,tone:string}>
     */
    public static function parse_badge_dictionary(string $raw): array {
        $lines = preg_split('/[\r\n]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $allowed_tones = ['neutral', 'info', 'success', 'warning', 'brand'];
        $items = [];

        foreach ((array) $lines as $line) {
            $parts = array_map('trim', explode('|', (string) $line));
            if (count($parts) < 2) {
                continue;
            }

            $slug = sanitize_key((string) $parts[0]);
            $label = sanitize_text_field((string) $parts[1]);
            $tone = isset($parts[2]) ? sanitize_key((string) $parts[2]) : 'neutral';

            if ($slug === '' || $label === '') {
                continue;
            }

            if (!in_array($tone, $allowed_tones, true)) {
                $tone = 'neutral';
            }

            $items[] = [
                'slug'  => $slug,
                'label' => $label,
                'tone'  => $tone,
            ];
        }

        return $items;
    }

    /**
     * @return array<int,array{slug:string,label:string}>
     */
    public static function parse_report_categories(string $raw): array {
        $lines = preg_split('/[\r\n]+/', $raw, -1, PREG_SPLIT_NO_EMPTY);
        $items = [];

        foreach ((array) $lines as $line) {
            $parts = array_map('trim', explode('|', (string) $line));
            if (count($parts) < 2) {
                continue;
            }

            $slug = sanitize_key((string) $parts[0]);
            $label = sanitize_text_field((string) $parts[1]);
            if ($slug === '' || $label === '') {
                continue;
            }

            $items[] = [
                'slug'  => $slug,
                'label' => $label,
            ];
        }

        return $items;
    }
}