<?php
/**
 * User public URL/page API
 *
 * @package AKSRT
 */

defined('ABSPATH') || exit;

// ============================================================
// 五、公开 API 函数（兼容旧代码调用）
// ============================================================

if (!function_exists('aksrt_get_user_center_url')) :
/**
 * 获取本人中心 URL（私有空间入口）
 *
 * @param string $tab 可选 tab 参数
 * @return string
 */
function aksrt_get_user_center_url(string $tab = ''): string {
    $tab = sanitize_key($tab ?: 'vip');
    $aliases = ['assets' => 'credits', 'signin' => 'credits', 'revenue' => 'revenue'];
    $tab = $aliases[$tab] ?? $tab;
    $path_tab = $tab === 'credits' ? 'balance' : $tab;
    return get_option('permalink_structure')
        ? home_url('/user/' . trailingslashit($path_tab))
        : add_query_arg(['aksrt_user_center' => '1', 'aksrt_user_center_tab' => $tab], home_url('/'));
}
endif;

if (!function_exists('aksrt_get_new_post_url')) :
/**
 * 前台写文章/投稿页 URL（模板 templates/pages/page-submit.php）。
 *
 * @param int $edit_id 编辑中的文章 ID；0 表示新建。
 * @return string 未指派页面时返回空串。
 */
function aksrt_get_new_post_url(int $edit_id = 0): string {
	if (class_exists('\AKSRT\Settings\Settings')) {
		$submit = \AKSRT\Settings\Settings::get_submit_settings();
		if (isset($submit['enabled']) && empty($submit['enabled'])) {
			return '';
		}
	}

	$url = function_exists('aksrt_get_template_url')
		? aksrt_get_template_url('submit')
		: home_url('/submit/');
	if ($edit_id > 0) {
		$url = add_query_arg('edit', $edit_id, $url);
	}
	return $url;
}
endif;

if (!function_exists('aksrt_get_messages_rewrite_slug')) :
/** 获取消息中心当前唯一的重写别名。 */
function aksrt_get_messages_rewrite_slug(): string {
	$settings = class_exists('\AKSRT\Settings\Settings')
		? \AKSRT\Settings\Settings::notification_settings()
		: [];
	$slug = sanitize_key((string) ($settings['slug'] ?? 'message'));
	return $slug !== '' ? $slug : 'message';
}
endif;

if (!function_exists('aksrt_get_messages_page_url')) :
/** 消息中心 URL。 */
function aksrt_get_messages_page_url(string $view = 'unread'): string {
	if (class_exists('\AKSRT\Settings\Settings') && !\AKSRT\Settings\Settings::message_enabled()) {
		return '';
	}
	$suffixes = [
		'unread' => '',
		'posts'  => 'posts',
		'like'   => 'like',
		'system' => 'system',
	];
	$view = sanitize_key($view);
	$suffix = $suffixes[$view] ?? $suffixes['unread'];
	$path = '/' . aksrt_get_messages_rewrite_slug() . ($suffix !== '' ? '/' . $suffix : '') . '/';
	return home_url($path);
}
endif;

if (!function_exists('aksrt_get_user_home_url')) :
/**
 * 获取公开用户主页 URL（/user/{nicename}/）
 *
 * @param WP_User|int|string|null $user 用户对象、ID、nicename 或 null（当前用户）
 * @return string
 */
function aksrt_get_user_home_url($user = null): string {
    $target = null;
    $mode = class_exists('\\AKSRT\\Settings\\Settings') ? (string) (\AKSRT\Settings\Settings::get_user_home_settings()['route_identifier'] ?? 'nicename') : 'nicename';
    if ($user instanceof WP_User) {
        $target = $user;
    } elseif (is_int($user) && $user > 0) {
        $target = get_userdata($user);
    } elseif (is_numeric($user) && (int) $user > 0) {
        $target = get_userdata((int) $user);
    } elseif (is_string($user) && $user) {
        $target = get_user_by('slug', $user);
    } else {
        $target = wp_get_current_user();
    }
    if (!$target instanceof WP_User || !$target->ID) {
        return home_url('/');
    }
    $identifier = $mode === 'uid' ? (string) $target->ID : $target->user_nicename;
    if (!get_option('permalink_structure')) {
        return add_query_arg('aksrt_author', rawurlencode($identifier), home_url('/'));
    }
    return home_url('/author/' . trailingslashit($identifier));
}
endif;

if (!function_exists('aksrt_resolve_public_user')) :
function aksrt_resolve_public_user(string $identifier): ?WP_User {
    $mode = class_exists('\\AKSRT\\Settings\\Settings') ? (string) (\AKSRT\Settings\Settings::get_user_home_settings()['route_identifier'] ?? 'nicename') : 'nicename';
    if ($mode === 'uid') {
        return ctype_digit($identifier) && (int) $identifier > 0 ? get_userdata((int) $identifier) ?: null : null;
    }
    return get_user_by('slug', sanitize_title($identifier)) ?: null;
}
endif;

if (!function_exists('aksrt_is_user_center_page')) :
/**
 * 判断当前是否为本人中心页面
 */
function aksrt_is_user_center_page(): bool {
    return (bool) get_query_var('aksrt_user_center')
        || (is_page_template('templates/pages/page-profile.php') && !(bool) get_query_var('aksrt_author_identifier'));
}
endif;

if (!function_exists('aksrt_is_user_home_page')) :
/**
 * 判断当前是否为公开用户主页
 */
function aksrt_is_user_home_page(): bool {
    return (bool) get_query_var('aksrt_author_identifier')
        || is_page_template('templates/pages/page-user-home.php');
}
endif;

if (!function_exists('aksrt_get_profile_url')) :
/**
 * 兼容层：获取用户主页 URL
 *
 * @deprecated 使用 aksrt_get_user_center_url() 或 aksrt_get_user_home_url() 替代
 * @param WP_User|int|string|null $user
 * @return string
 */
function aksrt_get_profile_url($user = null): string {
    // 无参调用 → 当前用户主页（公开页）
    if ($user === null) {
        return aksrt_get_user_home_url();
    }
    return aksrt_get_user_home_url($user);
}
endif;

if (!function_exists('aksrt_get_sign_page_url')) :
/**
 * Get the only public authentication page URL.
 *
 * @param string $tab
 * @param array<string, scalar> $args
 */
function aksrt_get_sign_page_url(string $tab = 'signin', array $args = []): string {
    $tab = aksrt_normalize_auth_tab($tab);
	return add_query_arg(['tab' => $tab] + $args, home_url('/sign/'));
}


/**
 * Determine whether the current request is served by the unified auth experience.
 */
function aksrt_is_auth_page_request(): bool {
    return (bool) get_query_var('aksrt_sign')
		|| is_page_template('templates/pages/page-sign.php');
}
endif;

if (!function_exists('aksrt_get_login_url')) :
/** 获取登录页 URL */
function aksrt_get_login_url($redirect = '') {
    $url = aksrt_get_sign_page_url('signin');
    if ($redirect) {
        $url = add_query_arg('redirect_to', urlencode($redirect), $url);
    }
    return $url;
}
endif;

if (!function_exists('aksrt_get_register_url')) :
/** 获取注册页 URL */
function aksrt_get_register_url() {
    return aksrt_get_sign_page_url('signup');
}
endif;

if (!function_exists('aksrt_get_bind_url')) :
/** 获取绑定账号页面 URL */
function aksrt_get_bind_url($transient_key = '') {
	$url = aksrt_get_sign_page_url('bind');
    if ($transient_key) {
        $url = add_query_arg('obk', $transient_key, $url);
    }
    return $url;
}
endif;

if (!function_exists('aksrt_get_logout_url')) :
/** 获取唯一退出登录 URL。 */
function aksrt_get_logout_url($redirect = '') {
    $target = is_string($redirect) && $redirect !== '' ? $redirect : home_url('/');
    $url = add_query_arg(
        ['redirect_to' => $target],
        home_url('/logout/')
    );
    return wp_nonce_url($url, 'aksrt-logout');
}
endif;

if (!function_exists('aksrt_get_reset_password_url')) :
/**
 * 获取重置密码页面 URL
 *
 * @return string
 */
function aksrt_get_reset_password_url(): string {
	return aksrt_get_sign_page_url('resetpassword');
}
endif;

// Notifications live in the same user/ domain; bootstrap also loads it.
if (!class_exists('AKSRT_User_Notifications', false) /* procedural module */ && file_exists(dirname(__DIR__) . '/user-notifications.php')) {
    require_once dirname(__DIR__) . '/user-notifications.php';
}