<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\blog\controller\backend; 
use think\facade\Request;
use think\facade\View;
use think\facade\Config;
use think\facade\Cache;  
use ywxapp\controller\BackendBase;

/**
 * Setting 类
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Setting extends BackendBase
{
    /**
     * Summary of needLogin
     * @var array
     */

    
    /**
     * Summary of needRight
     * @var array
     */
    protected $noNeedVerify = [];

    /**
     * 控制器初始化 _initialize
     * @return void
     */
    protected function initialize()
    {} 

    /**
     * 系统设置首页
     */
    public function index()
    {
        // 配置改存统一插件配置表（不再读写 PHP 配置文件，避免任意代码写入）
        $settings = [
            'site'   => $this->getConfig('site'),
            'seo'    => $this->getConfig('seo'),
            'email'  => $this->getConfig('email'),
            'upload' => Config::get('upload')
        ];
        
        return View::fetch('setting/index', ['settings' => $settings]);
    }

    /**
     * 基本设置
     */
    public function site()
    {
        if (Request::isPost()) {
            $data = Request::post();
            $this->saveConfig('site', $data);
            return json(['code' => 1, 'msg' => '基本设置已保存']);
        }
        
        $settings = $this->getConfig('site');
        return View::fetch('setting/site', ['settings' => $settings]);
    }

    /**
     * SEO设置
     */
    public function seo()
    {
        if (Request::isPost()) {
            $data = Request::post();
            $this->saveConfig('seo', $data);
            return json(['code' => 1, 'msg' => 'SEO设置已保存']);
        }
        
        $settings = $this->getConfig('seo');
        return View::fetch('setting/seo', ['settings' => $settings]);
    }

    /**
     * 邮件设置
     */
    public function email()
    {
        if (Request::isPost()) {
            $data = Request::post();
            $this->saveConfig('email', $data);
            return json(['code' => 1, 'msg' => '邮件设置已保存']);
        }
        
        $settings = $this->getConfig('email');
        return View::fetch('setting/email', ['settings' => $settings]);
    }

    /**
     * 保存配置
     */
    /**
     * 保存配置到统一插件配置表
     *
     * 之前的实现把 Request::post() 整个 var_export 写进 config/*.php，
     * 等于允许任意 PHP 代码写入（RCE），且 app_path() 在插件上下文指向不存在的目录
     * （写入静默失败）。改为走 AddonService::config() 存库。
     */
    private function saveConfig($key, $data)
    {
        // 分组白名单
        if (!in_array($key, ['site', 'seo', 'email'], true)) {
            return;
        }

        // 只接受标量值，键名做安全校验（防注入与数组嵌套）
        $clean = [];
        foreach ((array) $data as $k => $v) {
            $k = (string) $k;
            if (!preg_match('/^[a-zA-Z0-9_]+$/', $k)) {
                continue;
            }
            if (is_scalar($v)) {
                $clean[$k] = (string) $v;
            } elseif (is_array($v)) {
                $clean[$k] = json_encode($v, JSON_UNESCAPED_UNICODE);
            }
        }

        if (empty($clean)) {
            return;
        }

        // 以 "<分组>.<字段>" 形式存到插件配置表
        $prefixed = [];
        foreach ($clean as $k => $v) {
            $prefixed[$key . '.' . $k] = $v;
        }

        \ywxapp\service\AddonService::config('blog', $prefixed);
        \ywxapp\service\AddonService::clearConfigCache('blog');
    }

    /**
     * 读取某分组的配置（从插件配置表还原为不带前缀的数组）
     */
    private function getConfig($key)
    {
        $all    = \ywxapp\service\AddonService::config('blog');
        $prefix = $key . '.';
        $out    = [];

        foreach ((array) $all as $k => $v) {
            if (strpos((string) $k, $prefix) === 0) {
                $out[substr((string) $k, strlen($prefix))] = $v;
            }
        }

        return $out;
    }
}