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

trait AKSRT_Admin_Forum_Controller_Part_1 {

    public function update_plate(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $plate_id = (int) $request->get_param('id');
        $params = $this->get_json_params($request);

        $result = $forum->update_plate($plate_id, $params);
        if (!$result) {
            return $this->error(__('更新版块失败', 'aksrt'));
        }

        return $this->success(['message' => __('版块已更新', 'aksrt')]);
    }

    public function delete_plate(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $plate_id = (int) $request->get_param('id');
        $params = $this->get_json_params($request);
        $cascade = sanitize_key((string) ($params['cascade'] ?? 'trash'));
        $move_to = (int) ($params['move_to'] ?? 0);

        $result = $forum->delete_plate($plate_id, $cascade, $move_to);
        if (!$result) {
            return $this->error(__('删除版块失败', 'aksrt'));
        }

        return $this->success(['message' => __('版块已删除', 'aksrt')]);
    }

    public function reorder_plates(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $params = $this->get_json_params($request);
        $order = $params['order'] ?? [];
        if (!is_array($order) || empty($order)) {
            return $this->error(__('排序参数无效', 'aksrt'));
        }

        $forum->reorder_plates($order);

        return $this->success(['message' => __('排序已更新', 'aksrt')]);
    }

    public function toggle_follow_plate(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $plate_id = (int) $request->get_param('id');
        $user_id = get_current_user_id();

        $result = $forum->toggle_follow_plate($user_id, $plate_id);
        return $this->success($result);
    }

    public function get_plate_categories(): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->success(['data' => []]);
        }

        return $this->success(['data' => $forum->get_plate_categories()]);
    }

    public function get_sorted_plates(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->success(['data' => []]);
        }

        $orderby = sanitize_key((string) ($request->get_param('orderby') ?: 'menu_order'));
        $order = sanitize_key((string) ($request->get_param('order') ?: 'ASC'));
        $limit = max(1, min(100, (int) ($request->get_param('limit') ?: 50)));

        return $this->success(['data' => $forum->get_sorted_plates($orderby, $order, $limit)]);
    }

    public function get_topics(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->success(['data' => ['items' => [], 'total' => 0, 'page' => 1, 'total_pages' => 1]]);
        }

        $args = [
            'page' => max(1, (int) ($request->get_param('page') ?: 1)),
            'per_page' => max(1, min(100, (int) ($request->get_param('per_page') ?: 20))),
            'status' => sanitize_key((string) ($request->get_param('status') ?: 'all')),
            'board_id' => (int) ($request->get_param('board_id') ?: 0),
            'visibility' => sanitize_key((string) ($request->get_param('visibility') ?: '')),
            'review_status' => sanitize_key((string) ($request->get_param('review_status') ?: '')),
            'keyword' => sanitize_text_field((string) ($request->get_param('keyword') ?: '')),
            'orderby' => sanitize_key((string) ($request->get_param('orderby') ?: 'date')),
            'viewer_user_id' => get_current_user_id(),
            'include_hidden' => true,
        ];

        $view = $forum->get_topic_list($args);

        return $this->success([
            'data' => [
                'items' => $view['items'],
                'total' => $view['total'],
                'page' => $view['page'],
                'total_pages' => $view['max_pages'],
                'options' => [
                    'boards' => $forum->get_boards(),
                    'visibility' => $forum->get_visibility_options(),
                    'review' => $forum->get_review_options(),
                    'status' => [
                        ['label' => __('全部', 'aksrt'), 'value' => 'all'],
                        ['label' => __('已发布', 'aksrt'), 'value' => 'publish'],
                        ['label' => __('待审核', 'aksrt'), 'value' => 'pending'],
                        ['label' => __('草稿/拒绝', 'aksrt'), 'value' => 'draft'],
                    ],
                ],
            ],
        ]);
    }

    public function get_topic_detail(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $topic_id = (int) $request->get_param('id');
        if ($topic_id <= 0) {
            return $this->error(__('参数无效', 'aksrt'));
        }

        return $this->success([
            'data' => $forum->get_topic_detail($topic_id, get_current_user_id()),
        ]);
    }

    public function moderate_topic(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $topic_id = (int) $request->get_param('id');
        $params = $this->get_json_params($request);
        $action = sanitize_key((string) ($params['action'] ?? ''));

        if ($topic_id <= 0 || $action === '') {
            return $this->error(__('参数无效', 'aksrt'));
        }

        $result = $forum->moderate_topic($topic_id, $action, $params, get_current_user_id());
        if (is_wp_error($result)) {
            return $this->error($result->get_error_message(), $result->get_error_code() === 'forbidden' ? 403 : 400);
        }

        return $this->success([
            'message' => $result['message'] ?? __('治理动作已执行', 'aksrt'),
            'data' => $result,
        ]);
    }

    public function vote_topic(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $topic_id = (int) $request->get_param('id');
        $params = $this->get_json_params($request);
        $option_ids = $params['option_ids'] ?? [];
        if (!is_array($option_ids)) {
            $option_ids = [];
        }

        $result = $forum->submit_vote($topic_id, get_current_user_id(), $option_ids);
        if (is_wp_error($result)) {
            $status = $result->get_error_code() === 'not_logged_in' ? 401 : 400;
            return $this->error($result->get_error_message(), $status);
        }

        return $this->success([
            'message' => $result['message'] ?? __('投票成功', 'aksrt'),
            'data' => $result,
        ]);
    }

    /**
     * Legacy admin moderation endpoint kept for compatibility.
     */
    public function update_topic_legacy(WP_REST_Request $request): WP_REST_Response {
        $params = $this->get_json_params($request);
        $topic_id = (int) ($params['topic_id'] ?? 0);
        if ($topic_id <= 0) {
            return $this->error(__('参数无效', 'aksrt'));
        }

        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $actions = [];
        if (isset($params['sticky'])) {
            $actions[] = ['action' => 'sticky', 'value' => !empty($params['sticky'])];
        }
        if (isset($params['featured'])) {
            $actions[] = ['action' => 'featured', 'value' => !empty($params['featured'])];
        }
        if (isset($params['locked'])) {
            $actions[] = ['action' => 'locked', 'value' => !empty($params['locked'])];
        }

        foreach ($actions as $action) {
            $result = $forum->moderate_topic($topic_id, $action['action'], ['value' => $action['value']], get_current_user_id());
            if (is_wp_error($result)) {
                return $this->error($result->get_error_message());
            }
        }

        return $this->success(['message' => __('治理状态已更新', 'aksrt')]);
    }

    public function get_moderators(): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->success(['data' => ['boards' => []]]);
        }

        $board_id = isset($_GET['board_id']) ? (int) $_GET['board_id'] : 0;
        $result = [];
        foreach ($forum->get_boards() as $board) {
            $current_board_id = (int) ($board['id'] ?? 0);
            if ($board_id > 0 && $current_board_id !== $board_id) {
                continue;
            }

            $result[] = [
                'board_id' => $current_board_id,
                'board_name' => (string) ($board['name'] ?? ''),
                'topic_count' => (int) ($board['post_count'] ?? 0),
                'pending_application_count' => (int) ($board['pending_application_count'] ?? 0),
                'moderators' => $forum->get_board_moderator_profiles_with_roles($current_board_id),
            ];
        }

        return $this->success(['data' => ['boards' => $result]]);
    }

    public function update_moderators(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $params = $this->get_json_params($request);
        $board_id = (int) ($params['board_id'] ?? 0);
        $user_id = (int) ($params['user_id'] ?? 0);
        $action = sanitize_key((string) ($params['action'] ?? ''));
        $role = sanitize_key((string) ($params['role'] ?? 'moderator'));

        if ($board_id <= 0 || $user_id <= 0 || !in_array($action, ['add', 'remove'], true)) {
            return $this->error(__('参数无效', 'aksrt'));
        }

        $valid_roles = ['super_moderator', 'moderator', 'junior_moderator'];
        if (!in_array($role, $valid_roles, true)) {
            $role = 'moderator';
        }

        $board = get_term($board_id, 'aksrt_forum_board');
        if (!$board || is_wp_error($board)) {
            return $this->error(__('版块不存在', 'aksrt'), 404);
        }

        $user = get_userdata($user_id);
        if (!$user) {
            return $this->error(__('用户不存在', 'aksrt'), 404);
        }

        if ($action === 'add') {
            $forum->add_moderator($user_id, $board_id, $role);
        } else {
            $forum->remove_moderator($user_id, $board_id);
        }

        return $this->success([
            'message' => $action === 'add' ? __('版主已添加', 'aksrt') : __('版主已移除', 'aksrt'),
        ]);
    }

    public function change_moderator_role(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $params = $this->get_json_params($request);
        $board_id = (int) ($params['board_id'] ?? 0);
        $user_id = (int) ($params['user_id'] ?? 0);
        $role = sanitize_key((string) ($params['role'] ?? ''));

        if ($board_id <= 0 || $user_id <= 0 || !$role) {
            return $this->error(__('参数无效', 'aksrt'));
        }

        $valid_roles = ['super_moderator', 'moderator', 'junior_moderator'];
        if (!in_array($role, $valid_roles, true)) {
            return $this->error(__('无效的角色', 'aksrt'));
        }

        $result = $forum->set_moderator_role($user_id, $board_id, $role);
        if (!$result) {
            return $this->error(__('设置角色失败，用户可能不是该版块版主', 'aksrt'));
        }

        return $this->success(['message' => __('角色已更新', 'aksrt')]);
    }

    public function apply_moderator(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->error(__('论坛系统未启用', 'aksrt'));
        }

        $params = $this->get_json_params($request);
        $board_id = (int) ($params['board_id'] ?? 0);
        $reason = sanitize_textarea_field((string) ($params['reason'] ?? ''));

        $result = $forum->apply_moderator(get_current_user_id(), $board_id, $reason);
        if (is_wp_error($result)) {
            $status = $result->get_error_code() === 'not_logged_in' ? 401 : 400;
            return $this->error($result->get_error_message(), $status);
        }

        return $this->success([
            'message' => $result['message'] ?? __('申请已提交', 'aksrt'),
            'data' => $result,
        ]);
    }

    public function get_moderator_applications(WP_REST_Request $request): WP_REST_Response {
        $forum = $this->get_forum_service();
        if (!$forum) {
            return $this->success(['data' => ['items' => [], 'total' => 0]]);
        }

        $items = $forum->get_moderator_application_list([
            'status' => sanitize_key((string) ($request->get_param('status') ?: '')),
            'board_id' => (int) ($request->get_param('board_id') ?: 0),
            'keyword' => sanitize_text_field((string) ($request->get_param('keyword') ?: '')),
        ]);

        return $this->success([
            'data' => [
                'items' => $items,
                'total' => count($items),
                'options' => [
                    'boards' => $forum->get_boards(),
                    'status' => [
                        ['label' => __('全部', 'aksrt'), 'value' => ''],
                        ['label' => __('待处理', 'aksrt'), 'value' => AKSRT_Forum::APPLICATION_PENDING],
                        ['label' => __('已通过', 'aksrt'), 'value' => AKSRT_Forum::APPLICATION_APPROVED],
                        ['label' => __('已拒绝', 'aksrt'), 'value' => AKSRT_Forum::APPLICATION_REJECTED],
                    ],
                ],
            ],
        ]);
    }
}