<?php
defined('ABSPATH') || exit;

trait AKSRT_Forum_Topic_Service_Part_4 {


    /**
     * Get review options.
     */
    public function get_review_options(): array {
        $options = [];
        foreach ($this->get_review_map() as $value => $label) {
            $options[] = ['label' => $label, 'value' => $value];
        }
        return $options;
    }

    /**
     * Check whether a user can publish directly.
     */
    public function can_user_publish_directly(int $user_id, int $board_id = 0): bool {
        if ($user_id <= 0) {
            return false;
        }

        if (user_can($user_id, 'manage_options')) {
            return true;
        }

        if ($this->forum->is_forum_admin($user_id)) {
            return true;
        }

        if ($board_id > 0 && $this->forum->is_board_moderator($user_id, $board_id)) {
            return true;
        }

        return false;
    }

    // ── AJAX edit (extracted from facade) ──

    public function ajax_edit_topic(): void {
        check_ajax_referer('aksrt_forum_compose', '_nonce');
        $user_id  = get_current_user_id();
        $topic_id = (int) ($_POST['topic_id'] ?? 0);

        if ($user_id <= 0) {
            wp_send_json_error(['message' => __('请先登录', 'aksrt')]);
        }
        if (!$this->forum->can_edit_topic($user_id, $topic_id)) {
            wp_send_json_error(['message' => __('无编辑权限', 'aksrt')]);
        }

        $title   = sanitize_text_field((string) ($_POST['title'] ?? ''));
        $content = wp_kses_post((string) ($_POST['content'] ?? ''));
        if ($title === '' || $content === '') {
            wp_send_json_error(['message' => __('标题和内容不能为空', 'aksrt')]);
        }

        $result = wp_update_post([
            'ID'           => $topic_id,
            'post_title'   => $title,
            'post_content' => $content,
        ], true);

        if (is_wp_error($result)) {
            wp_send_json_error(['message' => $result->get_error_message()]);
        }

        $tags = $this->split_tags((string) ($_POST['tags'] ?? ''));
        $clean_tags = array_slice(array_values(array_filter(array_map('sanitize_text_field', $tags))), 0, 5);
        wp_set_object_terms($topic_id, $clean_tags, 'aksrt_forum_tag');

        if (isset($_POST['special_topic'])) {
            update_post_meta($topic_id, '_aksrt_special_topic', sanitize_text_field((string) $_POST['special_topic']));
        }

        if (isset($_POST['topic_cat']) && taxonomy_exists('aksrt_forum_topic_cat')) {
            $topic_cat = sanitize_text_field((string) $_POST['topic_cat']);
            wp_set_object_terms($topic_id, $topic_cat !== '' ? [$topic_cat] : [], 'aksrt_forum_topic_cat');
        }

        $caps = $this->forum->get_compose_capabilities($user_id);

        if ($caps['can_set_visibility'] && isset($_POST['visibility'])) {
            $visibility = sanitize_key((string) $_POST['visibility']);
            if (isset($this->get_visibility_map()[$visibility])) {
                update_post_meta($topic_id, '_aksrt_visibility', $visibility);
                if ($visibility === self::VISIBILITY_CREDITS) {
                    update_post_meta($topic_id, '_aksrt_credits_cost', max(0, (int) ($_POST['credits_cost'] ?? 0)));
                }
                if ($visibility === self::VISIBILITY_PAY) {
                    update_post_meta($topic_id, '_aksrt_pay_price', sanitize_text_field((string) ($_POST['pay_price'] ?? '')));
                }
                if ($visibility === self::VISIBILITY_ROLE) {
                    $roles = isset($_POST['visibility_roles']) && is_array($_POST['visibility_roles'])
                        ? array_map('sanitize_key', $_POST['visibility_roles']) : [];
                    update_post_meta($topic_id, '_aksrt_visibility_roles', $roles);
                }
            }
        }

        if ($caps['can_set_cover']) {
            $this->save_cover_meta($topic_id, [
                'cover_type'     => sanitize_key((string) ($_POST['cover_type'] ?? '')),
                'cover_image'    => esc_url_raw((string) ($_POST['cover_image'] ?? '')),
                'featured_slide' => (string) ($_POST['featured_slide'] ?? ''),
                'featured_video' => esc_url_raw((string) ($_POST['featured_video'] ?? '')),
            ]);
        }

        if ($caps['can_set_vote'] && isset($_POST['vote_enabled'])) {
            $vote_data = [
                'vote_enabled'     => !empty($_POST['vote_enabled']),
                'vote_title'       => sanitize_text_field((string) ($_POST['vote_title'] ?? '')),
                'vote_options_text' => sanitize_textarea_field((string) ($_POST['vote_options'] ?? '')),
                'vote_multiple'    => !empty($_POST['vote_multiple']),
                'vote_type'        => sanitize_key((string) ($_POST['vote_type'] ?? 'standard')),
                'vote_expiry_days' => (int) ($_POST['vote_expiry_days'] ?? 0),
            ];
            $vote_meta = $this->prepare_vote_meta($vote_data);
            $this->save_vote_meta($topic_id, $vote_meta);
        }

        wp_send_json_success([
            'message'  => __('帖子已更新', 'aksrt'),
            'redirect' => get_permalink($topic_id),
        ]);
    }

    public function can_edit_topic(int $user_id, int $topic_id): bool {
        if ($user_id <= 0 || $topic_id <= 0) {
            return false;
        }
        // Moderators and above can always edit
        if ($this->forum->forum_user_can($user_id, 'topic_edit_other', $topic_id)) {
            return true;
        }
        // Authors can edit their own unlocked topics
        $post = get_post($topic_id);
        if (!$post || $post->post_type !== 'aksrt_forum_topic') {
            return false;
        }
        if ((int) $post->post_author !== $user_id) {
            return false;
        }
        return get_post_meta($topic_id, '_aksrt_locked', true) !== '1';
    }

    public function update_topic_meta(int $topic_id, array $meta): bool {
        if ($topic_id <= 0) {
            return false;
        }

        if (!$this->forum->can_moderate_topic(get_current_user_id(), $topic_id) && !current_user_can('manage_options')) {
            return false;
        }

        $allowed_keys = ['_aksrt_sticky', '_aksrt_featured', '_aksrt_locked', '_aksrt_highlight'];
        foreach ($meta as $key => $value) {
            if (!in_array($key, $allowed_keys, true)) {
                continue;
            }

            update_post_meta($topic_id, $key, !empty($value) ? '1' : '0');
        }

        return true;
    }

    public function ajax_update_topic(): void {
        $user_id  = get_current_user_id();
        $topic_id = (int) ($_POST['topic_id'] ?? 0);
        if ($topic_id <= 0 || !$this->forum->forum_user_can($user_id, 'topic_moderate', $topic_id)) {
            wp_send_json_error(['message' => __('权限不足', 'aksrt')]);
        }

        $meta = [];
        if (isset($_POST['sticky'])) {
            $meta['_aksrt_sticky'] = !empty($_POST['sticky']);
        }
        if (isset($_POST['featured'])) {
            $meta['_aksrt_featured'] = !empty($_POST['featured']);
        }
        if (isset($_POST['locked'])) {
            $meta['_aksrt_locked'] = !empty($_POST['locked']);
        }

        if ($this->update_topic_meta($topic_id, $meta)) {
            wp_send_json_success(['message' => __('已更新', 'aksrt')]);
        }

        wp_send_json_error(['message' => __('更新失败', 'aksrt')]);
    }

    public function ajax_create_topic(): void {
        check_ajax_referer('aksrt_forum_compose', '_nonce');

        $user_id = get_current_user_id();
        if ($user_id <= 0) {
            wp_send_json_error(['message' => __('请先登录', 'aksrt')]);
        }

        $data = [
            'board_id' => (int) ($_POST['board_id'] ?? 0),
            'title' => sanitize_text_field((string) ($_POST['title'] ?? '')),
            'content' => wp_kses_post((string) ($_POST['content'] ?? '')),
            'tags' => $this->split_tags((string) ($_POST['tags'] ?? '')),
            'special_topic' => sanitize_text_field((string) ($_POST['special_topic'] ?? '')),
            'visibility' => sanitize_key((string) ($_POST['visibility'] ?? self::VISIBILITY_PUBLIC)),
            'bbs_type' => sanitize_key((string) ($_POST['bbs_type'] ?? self::BBS_TYPE_STANDARD)),
            'topic_cat' => sanitize_text_field((string) ($_POST['topic_cat'] ?? '')),
            'vote_enabled' => !empty($_POST['vote_enabled']),
            'vote_title' => sanitize_text_field((string) ($_POST['vote_title'] ?? '')),
            'vote_options_text' => sanitize_textarea_field((string) ($_POST['vote_options'] ?? '')),
            'vote_multiple' => !empty($_POST['vote_multiple']),
            'cover_type' => sanitize_key((string) ($_POST['cover_type'] ?? '')),
            'cover_image' => esc_url_raw((string) ($_POST['cover_image'] ?? '')),
            'featured_slide' => (string) ($_POST['featured_slide'] ?? ''),
            'featured_video' => esc_url_raw((string) ($_POST['featured_video'] ?? '')),
            'credits_cost' => (int) ($_POST['credits_cost'] ?? 0),
            'pay_price' => sanitize_text_field((string) ($_POST['pay_price'] ?? '')),
            'visibility_roles' => isset($_POST['visibility_roles']) && is_array($_POST['visibility_roles'])
                ? array_map('sanitize_key', $_POST['visibility_roles']) : [],
        ];

        $draft_id = (int) ($_POST['draft_id'] ?? 0);
        if ($draft_id > 0) {
            $result = $this->forum->publish_draft($user_id, $draft_id, $data);
        } else {
            $result = $this->create_topic($user_id, $data);
        }

        if (is_wp_error($result)) {
            wp_send_json_error(['message' => $result->get_error_message()]);
        }

        wp_send_json_success([
            'message' => (string) ($result['message'] ?? __('主题已提交', 'aksrt')),
            'post_id' => (int) ($result['post_id'] ?? 0),
            'redirect' => (string) ($result['redirect'] ?? aksrt_get_forum_home_url()),
        ]);
    }

    public function ajax_unlock_topic(): void {
        check_ajax_referer('aksrt_forum_action', '_nonce');

        $user_id = get_current_user_id();
        if ($user_id <= 0) {
            wp_send_json_error(['message' => __('请先登录', 'aksrt')]);
        }

        $topic_id = (int) ($_POST['topic_id'] ?? 0);
        if ($topic_id <= 0) {
            wp_send_json_error(['message' => __('主题不存在', 'aksrt')]);
        }

        $result = $this->unlock_topic_with_credits($user_id, $topic_id);
        if (!empty($result['success'])) {
            wp_send_json_success($result);
        } else {
            wp_send_json_error(['message' => $result['message'] ?? __('解锁失败', 'aksrt')]);
        }
    }

    public function ajax_purchase_topic(): void {
        check_ajax_referer('aksrt_forum_action', '_nonce');

        $user_id = get_current_user_id();
        if ($user_id <= 0) {
            wp_send_json_error(['message' => __('请先登录', 'aksrt')]);
        }

        $topic_id = (int) ($_POST['topic_id'] ?? 0);
        if ($topic_id <= 0) {
            wp_send_json_error(['message' => __('主题不存在', 'aksrt')]);
        }

        $result = $this->purchase_topic_with_balance($user_id, $topic_id);
        if (!empty($result['success'])) {
            wp_send_json_success($result);
        } else {
            wp_send_json_error(['message' => $result['message'] ?? __('购买失败', 'aksrt')]);
        }
    }
}