<?php
/**
 * AKSRT Theme Core Hooks
 *
 * 从 functions.php 中抽离的核心功能钩子：
 * - Gravatar 头像源替换（4层拦截）
 * - SMTP 邮件配置注入
 * - 评论开关控制
 * - Banner CPT 注册
 * - Admin Bar 隐藏
 *
 * @package AKSRT
 * @version 3.2.0
 */

defined('ABSPATH') || exit;

// ============================================================
// 评论功能开关
// ============================================================

add_filter('comments_open', function ($open, $post_id) {
    if (!get_option('aksrt_comment_enabled', true)) {
        return false;
    }
    return $open;
}, 10, 2);

add_filter('comment_text', function ($comment_text, $comment = null, $args = []) {
    if (function_exists('aksrt_render_comment_content')) {
        return aksrt_render_comment_content((string) $comment_text);
    }
    return $comment_text;
}, 20, 3);

// ============================================================
// 注册自定义文章类型 - Banner (REST API for SPA)
// ============================================================

function aksrt_register_banner_cpt() {
    register_post_type('aksrt_banner', array(
        'labels'              => array(
            'name'               => __('Banners', 'aksrt'),
            'singular_name'      => __('Banner', 'aksrt'),
        ),
        'public'              => false,
        'show_ui'             => false,
        'show_in_rest'        => true,
        'supports'            => array('title'),
        'menu_icon'           => 'dashicons-images-alt2',
        'capability_type'     => 'post',
        'capabilities'        => array('create_posts' => 'manage_options'),
        'map_meta_cap'        => true,
    ));
}
add_action('init', 'aksrt_register_banner_cpt');

// ============================================================
// §3.7 Register Topics taxonomy for posts (专题分类)
// ============================================================
function aksrt_register_topics_taxonomy() {
    register_taxonomy('topics', 'post', [
        'labels' => [
            'name'          => __('专题', 'aksrt'),
            'singular_name' => __('专题', 'aksrt'),
            'search_items'  => __('搜索专题', 'aksrt'),
            'all_items'     => __('所有专题', 'aksrt'),
            'edit_item'     => __('编辑专题', 'aksrt'),
            'add_new_item'  => __('添加专题', 'aksrt'),
            'menu_name'     => __('专题', 'aksrt'),
        ],
        'hierarchical'      => true,
        'public'            => true,
        'show_in_rest'      => true,
        'show_admin_column' => true,
        'rewrite'           => ['slug' => 'topics'],
    ]);
}
add_action('init', 'aksrt_register_topics_taxonomy');

// ============================================================
// 注册自定义文章类型 - Forum Topic & 分类法 - Forum Board
// ============================================================

function aksrt_register_forum_cpt() {
    // Respect bbs_s switch — skip CPT registration when forum is disabled.
    // Admin context always registers so the backend settings page works.
    if (!is_admin() && class_exists('AKSRT_Settings')) {
        $forum = AKSRT_Settings::get_forum_settings();
        if (empty($forum['enabled'])) {
            return;
        }
    }

    // Read custom slugs from settings when available
    $plate_slug = 'board';
    $topic_slug = 'topic';
    if (class_exists('AKSRT_Settings')) {
        $forum = AKSRT_Settings::get_forum_settings();
        $plate_slug = !empty($forum['other']['plate_slug']) ? $forum['other']['plate_slug'] : 'board';
        $topic_slug = !empty($forum['other']['posts_slug']) ? $forum['other']['posts_slug'] : 'topic';
    }

    // Forum Board taxonomy
    register_taxonomy('aksrt_forum_board', 'aksrt_forum_topic', [
        'labels' => [
            'name'          => __('论坛版块', 'aksrt'),
            'singular_name' => __('版块', 'aksrt'),
            'search_items'  => __('搜索版块', 'aksrt'),
            'all_items'     => __('所有版块', 'aksrt'),
            'edit_item'     => __('编辑版块', 'aksrt'),
            'add_new_item'  => __('添加版块', 'aksrt'),
        ],
        'hierarchical'      => true,
        'public'            => true,
        'show_in_rest'      => true,
        'show_admin_column' => true,
        'rewrite'           => ['slug' => $plate_slug],
    ]);

    // Forum Tag taxonomy
    register_taxonomy('aksrt_forum_tag', 'aksrt_forum_topic', [
        'labels' => [
            'name'          => __('论坛标签', 'aksrt'),
            'singular_name' => __('标签', 'aksrt'),
            'search_items'  => __('搜索标签', 'aksrt'),
            'all_items'     => __('所有标签', 'aksrt'),
            'edit_item'     => __('编辑标签', 'aksrt'),
            'add_new_item'  => __('添加标签', 'aksrt'),
        ],
        'hierarchical'      => false,
        'public'            => true,
        'show_in_rest'      => true,
        'show_admin_column' => false,
        'rewrite'           => ['slug' => 'forum-tag'],
    ]);

    // Forum Topic taxonomy (话题，单选，区别于标签)
    register_taxonomy('aksrt_forum_topic_cat', 'aksrt_forum_topic', [
        'labels' => [
            'name'          => __('论坛话题', 'aksrt'),
            'singular_name' => __('话题', 'aksrt'),
            'search_items'  => __('搜索话题', 'aksrt'),
            'all_items'     => __('所有话题', 'aksrt'),
            'edit_item'     => __('编辑话题', 'aksrt'),
            'add_new_item'  => __('添加话题', 'aksrt'),
        ],
        'hierarchical'      => false,
        'public'            => true,
        'show_in_rest'      => true,
        'show_admin_column' => true,
        'rewrite'           => ['slug' => 'forum-topic'],
    ]);

    // Forum Topic CPT
    register_post_type('aksrt_forum_topic', [
        'labels' => [
            'name'          => __('论坛主题', 'aksrt'),
            'singular_name' => __('主题', 'aksrt'),
            'add_new_item'  => __('发布新主题', 'aksrt'),
            'edit_item'     => __('编辑主题', 'aksrt'),
            'view_item'     => __('查看主题', 'aksrt'),
        ],
        'public'            => true,
        'show_in_rest'      => true,
        'has_archive'       => true,
        'menu_icon'         => 'dashicons-comments',
        'supports'          => ['title', 'editor', 'author', 'comments', 'thumbnail', 'excerpt'],
        'capability_type'   => 'post',
        'rewrite'           => ['slug' => $topic_slug],
    ]);
}
add_action('init', 'aksrt_register_forum_cpt');

// ============================================================
// 注册板块 CPT (aksrt_forum_plate) + 板块分区 taxonomy (aksrt_plate_cat)
// §7.0 plate CPT 脚手架：板块从 taxonomy 迁移为独立 CPT，
// 支持作者(超级版主)、正文/摘要/封面、层级父子、独立 meta 扩展位。
// ============================================================

function aksrt_register_forum_plate_cpt() {
    if (!is_admin() && class_exists('AKSRT_Settings')) {
        $forum = AKSRT_Settings::get_forum_settings();
        if (empty($forum['enabled'])) {
            return;
        }
    }

    $plate_slug = 'board';
    if (class_exists('AKSRT_Settings')) {
        $forum = AKSRT_Settings::get_forum_settings();
        $plate_slug = !empty($forum['other']['plate_slug']) ? $forum['other']['plate_slug'] : 'board';
    }

    // Plate category taxonomy (分区)
    register_taxonomy('aksrt_plate_cat', 'aksrt_forum_plate', [
        'labels' => [
            'name'          => __('板块分区', 'aksrt'),
            'singular_name' => __('分区', 'aksrt'),
            'search_items'  => __('搜索分区', 'aksrt'),
            'all_items'     => __('所有分区', 'aksrt'),
            'edit_item'     => __('编辑分区', 'aksrt'),
            'add_new_item'  => __('添加分区', 'aksrt'),
        ],
        'hierarchical'      => true,
        'public'            => true,
        'show_in_rest'      => true,
        'show_admin_column' => true,
        'rewrite'           => ['slug' => 'plate-cat'],
    ]);

    // Plate CPT (板块)
    register_post_type('aksrt_forum_plate', [
        'labels' => [
            'name'               => __('论坛版块', 'aksrt'),
            'singular_name'      => __('版块', 'aksrt'),
            'add_new_item'       => __('创建版块', 'aksrt'),
            'edit_item'          => __('编辑版块', 'aksrt'),
            'view_item'          => __('查看版块', 'aksrt'),
            'search_items'       => __('搜索版块', 'aksrt'),
            'not_found'          => __('未找到版块', 'aksrt'),
            'not_found_in_trash' => __('回收站中未找到版块', 'aksrt'),
        ],
        'public'             => true,
        'hierarchical'       => true,
        'show_in_rest'       => true,
        'has_archive'        => false,
        'menu_icon'          => 'dashicons-grid-view',
        'supports'           => ['title', 'editor', 'author', 'excerpt', 'thumbnail', 'page-attributes'],
        'capability_type'    => 'post',
        'rewrite'            => ['slug' => $plate_slug, 'with_front' => false],
        'show_in_menu'       => false,
    ]);

    // Keep aksrt_forum_topic assignable to plates via taxonomy bridge
    register_taxonomy_for_object_type('aksrt_forum_board', 'aksrt_forum_topic');
}
add_action('init', 'aksrt_register_forum_plate_cpt');

// ============================================================
// §7.0 forum_post CPT 对齐：注册帖子 meta 扩展位地基
// 为 aksrt_forum_topic 注册全部 meta key，提供类型安全 + REST 暴露。
// ============================================================

function aksrt_register_forum_topic_meta() {
    $post_type = 'aksrt_forum_topic';

    $meta_fields = [
        // 基础治理 meta (已有，补注册)
        '_aksrt_visibility'       => ['type' => 'string',  'default' => 'public'],
        '_aksrt_review_status'    => ['type' => 'string',  'default' => ''],
        '_aksrt_sticky'           => ['type' => 'integer', 'default' => 0],
        '_aksrt_featured'         => ['type' => 'integer', 'default' => 0],
        '_aksrt_locked'           => ['type' => 'integer', 'default' => 0],
        '_aksrt_highlight'        => ['type' => 'string',  'default' => ''],
        '_aksrt_views'            => ['type' => 'integer', 'default' => 0],
        '_aksrt_moderation_note'  => ['type' => 'string',  'default' => ''],
        '_aksrt_moderated_by'     => ['type' => 'integer', 'default' => 0],
        '_aksrt_moderated_at'     => ['type' => 'string',  'default' => ''],

        // 帖子类型 + 问答状态 (Wave3)
        '_aksrt_bbs_type'         => ['type' => 'string',  'default' => 'standard'],
        '_aksrt_question_status'  => ['type' => 'integer', 'default' => 0],
        '_aksrt_adopted_comment'  => ['type' => 'integer', 'default' => 0],

        // 投票 (已有，补注册)
        '_aksrt_vote_enabled'     => ['type' => 'integer', 'default' => 0],
        '_aksrt_vote_title'       => ['type' => 'string',  'default' => ''],
        '_aksrt_vote_multiple'    => ['type' => 'integer', 'default' => 0],
        '_aksrt_vote_type'        => ['type' => 'string',  'default' => 'standard'],
        '_aksrt_vote_expiry_days' => ['type' => 'integer', 'default' => 0],

        // 评分 (Wave3)
        '_aksrt_score'            => ['type' => 'integer', 'default' => 0],
        '_aksrt_recommend_score'  => ['type' => 'number',  'default' => 0],
        '_aksrt_hot_rewarded'     => ['type' => 'integer', 'default' => 0],

        // 收藏 (Wave3)
        '_aksrt_favorite_count'   => ['type' => 'integer', 'default' => 0],

        // 封面扩展位 (§7.3 待实现)
        '_aksrt_cover_type'       => ['type' => 'string',  'default' => ''],
        '_aksrt_cover_image'      => ['type' => 'string',  'default' => ''],
        '_aksrt_featured_slide'   => ['type' => 'array',   'default' => []],
        '_aksrt_featured_video'   => ['type' => 'string',  'default' => ''],
        '_aksrt_cover_ratio'      => ['type' => 'string',  'default' => '16:9'],

        // 付费内容扩展位 (§7.3 待实现)
        '_aksrt_allow_view'       => ['type' => 'string',  'default' => 'public'],
        '_aksrt_pay_price'        => ['type' => 'number',  'default' => 0],
        '_aksrt_pay_vip_price'    => ['type' => 'number',  'default' => 0],
        '_aksrt_pay_credits'      => ['type' => 'integer', 'default' => 0],
        '_aksrt_pay_hide_part'    => ['type' => 'integer', 'default' => 0],

        // 状态工作流扩展位 (Wave4)
        '_aksrt_closed'           => ['type' => 'integer', 'default' => 0],
        '_aksrt_hidden'           => ['type' => 'integer', 'default' => 0],

        // 板块 CPT 关联 (§7.0 新增)
        '_aksrt_plate_id'         => ['type' => 'integer', 'default' => 0],
    ];

    foreach ($meta_fields as $key => $args) {
        $schema = [
            'type'         => $args['type'],
            'description'  => $key,
            'single'       => true,
            'default'      => $args['default'],
            'show_in_rest' => false,
        ];

        if ($args['type'] === 'array') {
            $schema['show_in_rest'] = false;
            $schema['type'] = 'array';
        }

        register_post_meta($post_type, $key, $schema);
    }

    // Plate CPT meta registration
    $plate_meta = [
        '_aksrt_sort_order'        => ['type' => 'integer', 'default' => 0],
        '_aksrt_icon'              => ['type' => 'string',  'default' => ''],
        '_aksrt_moderators'        => ['type' => 'array',   'default' => []],
        '_aksrt_moderator_roles'   => ['type' => 'array',   'default' => []],
        '_aksrt_posts_count'       => ['type' => 'integer', 'default' => 0],
        '_aksrt_reply_count'       => ['type' => 'integer', 'default' => 0],
        '_aksrt_today_reply_count' => ['type' => 'integer', 'default' => 0],
        '_aksrt_plate_views'       => ['type' => 'integer', 'default' => 0],
        '_aksrt_follow_count'      => ['type' => 'integer', 'default' => 0],
        '_aksrt_last_reply'        => ['type' => 'string',  'default' => ''],
        '_aksrt_last_post'         => ['type' => 'string',  'default' => ''],
        '_aksrt_allow_view'        => ['type' => 'string',  'default' => 'public'],
        '_aksrt_add_limit'         => ['type' => 'integer', 'default' => 0],
    ];

    foreach ($plate_meta as $key => $args) {
        register_post_meta('aksrt_forum_plate', $key, [
            'type'         => $args['type'] === 'array' ? 'array' : $args['type'],
            'description'  => $key,
            'single'       => true,
            'default'      => $args['default'],
            'show_in_rest' => false,
        ]);
    }
}
add_action('init', 'aksrt_register_forum_topic_meta');

// Include forum topics in frontend search results (§7.10).
add_action('pre_get_posts', function ($query) {
    if (!is_admin() && $query->is_main_query() && $query->is_search()) {
        $post_types = $query->get('post_type');
        if (empty($post_types) || $post_types === 'post') {
            $query->set('post_type', ['post', 'page', 'aksrt_forum_topic']);
        } elseif (is_array($post_types) && !in_array('aksrt_forum_topic', $post_types, true)) {
            $post_types[] = 'aksrt_forum_topic';
            $query->set('post_type', $post_types);
        }
    }
});

// ============================================================