<?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 {
    if (get_option('permalink_structure')) {
        $url = home_url('/profile/');
    } else {
        $url = add_query_arg('aksrt_user_center', '1', home_url('/'));
    }

    if ($tab !== '') {
        $url = add_query_arg('tab', $tab, $url);
    }
    return $url;
}
endif;

if (!function_exists('aksrt_get_orders_page_url')) :
/**
 * 订单中心页面 URL（模板 templates/pages/page-orders.php）。
 * 未指派页面时返回空串，调用方应隐藏入口。
 */
function aksrt_get_orders_page_url(): string {
    return function_exists('aksrt_get_page_url_by_template')
        ? aksrt_get_page_url_by_template('templates/pages/page-orders.php')
        : '';
}
endif;

if (!function_exists('aksrt_get_cart_page_url')) :
/**
 * 购物车页面 URL（模板 templates/pages/page-cart.php）。
 */
function aksrt_get_cart_page_url(): string {
    return function_exists('aksrt_get_page_url_by_template')
        ? aksrt_get_page_url_by_template('templates/pages/page-cart.php')
        : '';
}
endif;

if (!function_exists('aksrt_get_revenue_page_url')) :
/**
 * 收益中心页面 URL（模板 templates/pages/page-revenue.php）。
 */
function aksrt_get_revenue_page_url(): string {
    return function_exists('aksrt_get_page_url_by_template')
        ? aksrt_get_page_url_by_template('templates/pages/page-revenue.php')
        : '';
}
endif;

if (!function_exists('aksrt_get_messages_page_url')) :
/**
 * 消息中心页面 URL（模板 templates/pages/page-messages.php）。
 */
function aksrt_get_messages_page_url(): string {
    return function_exists('aksrt_get_page_url_by_template')
        ? aksrt_get_page_url_by_template('templates/pages/page-messages.php')
        : '';
}
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 {
    $slug = '';
    if ($user instanceof WP_User) {
        $slug = $user->user_nicename;
    } elseif (is_int($user) && $user > 0) {
        $u = get_userdata($user);
        $slug = $u ? $u->user_nicename : '';
    } elseif (is_string($user) && $user) {
        $slug = $user;
    } else {
        $current = wp_get_current_user();
        $slug = $current->ID ? $current->user_nicename : '';
    }
    if (!$slug) return home_url('/');
    return home_url('/user/' . trailingslashit($slug));
}
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('user_nicename'));
}
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('user_nicename')
        || 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 unified auth page URL, with legacy route fallback while the page self-heals.
 *
 * @param string $tab
 * @param array<string, scalar> $args
 */
function aksrt_get_sign_page_url(string $tab = 'login', array $args = []): string {
    $tab = aksrt_normalize_auth_tab($tab);

    $legacy_fallbacks = [
        'login'          => home_url('/login/'),
        'register'       => home_url('/register/'),
        'bind'           => home_url('/bind-account/'),
        'reset-password' => home_url('/reset-password/'),
        'verify-email'   => home_url('/verify-email/'),
    ];

    $page = aksrt_find_template_page('templates/pages/page-sign.php');
    if (!$page) {
        aksrt_ensure_template_page('sign');
        $page = aksrt_find_template_page('templates/pages/page-sign.php');
    }

    if ($page instanceof WP_Post) {
        $url = get_permalink($page->ID);
        $args = ['tab' => $tab] + $args;
        return add_query_arg($args, $url);
    }

    $url = $legacy_fallbacks[$tab] ?? home_url('/login/');
    return !empty($args) ? add_query_arg($args, $url) : $url;
}


/**
 * 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')
        || is_page_template('templates/pages/page-login.php')
        || is_page_template('templates/pages/page-register.php')
        || is_page_template('templates/pages/page-bind-account.php')
        || is_page_template('templates/pages/page-reset-password.php')
        || is_page_template('templates/pages/page-verify-email.php');
}
endif;

if (!function_exists('aksrt_get_login_url')) :
/** 获取登录页 URL */
function aksrt_get_login_url($redirect = '') {
    $url = aksrt_get_sign_page_url('login');
    if ($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('register');
}
endif;

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

if (!function_exists('aksrt_get_logout_url')) :
/** 获取退出登录 URL */
function aksrt_get_logout_url($redirect = '') {
    $target = $redirect ?: home_url('/');
    $url = add_query_arg('redirect_to', rawurlencode($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
 *
 * @param string $token   主题重置 token（可选，设置密码时需要）
 * @param int    $user_id 用户 ID（可选，设置密码时需要）
 * @return string
 */
function aksrt_get_reset_password_url(string $token = '', int $user_id = 0): string {
    $url = aksrt_get_template_url('reset-password');
    if ($token !== '' && $user_id > 0) {
        $url = add_query_arg([
            'token' => $token,
            'uid'   => $user_id,
        ], $url);
    }
    return $url;
}
endif;

if (!function_exists('aksrt_get_verify_email_url')) :
/** 获取邮箱验证页面 URL */
function aksrt_get_verify_email_url(int $user_id = 0, array $args = []): string {
    $url = aksrt_get_template_url('verify-email');
    if ($user_id > 0) {
        $args['uid'] = $user_id;
    }
    if (!empty($args)) {
        $url = add_query_arg($args, $url);
    }
    return $url;
}
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';
}