<?php
declare (strict_types = 1);

namespace app\controller;

use app\BaseController;
use app\middleware\Admin as AdminMiddleware;
use app\service\ConfigService;
use app\service\UserService;
use think\facade\Session;
use think\facade\View;

/**
 * 管理员控制器
 */
class Admin extends BaseController
{
    protected $middleware = [AdminMiddleware::class];
    
    /**
     * 初始化方法
     */
    protected function initialize()
    {
        parent::initialize();
        
        // 对于API方法，直接检查权限并设置响应头
        $action = $this->request->action();
        $apiActions = ['getUsers', 'getBaseUrl', 'addUser', 'deleteUser', 'setBaseUrl', 'resetUserPassword'];
        
        if (in_array($action, $apiActions)) {
            // 检查登录状态
            if (!Session::has('username')) {
                header('Content-Type: application/json; charset=utf-8');
                echo json_encode([
                    'code' => 0,
                    'msg' => '请先登录',
                ], JSON_UNESCAPED_UNICODE);
                exit;
            }
            
            // 检查管理员权限
            if (!Session::get('is_admin', false)) {
                header('Content-Type: application/json; charset=utf-8');
                echo json_encode([
                    'code' => 0,
                    'msg' => '无权限访问，需要管理员权限',
                ], JSON_UNESCAPED_UNICODE);
                exit;
            }
            
            // 设置JSON响应头
            header('Content-Type: application/json; charset=utf-8');
        }
    }
    
    /**
     * 显示管理首页
     */
    public function index()
    {
        return View::fetch();
    }
    
    /**
     * 获取所有账号列表
     */
    public function getUsers()
    {
        // 强制返回JSON，设置响应头
        header('Content-Type: application/json; charset=utf-8');
        
        try {
            $service = new UserService();
            $users = $service->getAllUsers();
            
            // 格式化数据
            $result = [];
            foreach ($users as $user) {
                $result[] = [
                    'username' => $user['username'] ?? '',
                    'created_at' => $user['created_at'] ?? '',
                ];
            }
            
            return json([
                'code' => 1,
                'data' => $result,
                'msg' => '获取成功',
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 0,
                'msg' => '获取失败: ' . $e->getMessage(),
            ]);
        }
    }
    
    /**
     * 添加账号
     */
    public function addUser()
    {
        // 强制返回JSON，设置响应头
        header('Content-Type: application/json; charset=utf-8');
        
        $username = $this->request->param('username', '');
        $password = $this->request->param('password', '');
        
        $service = new UserService();
        $result = $service->addUser($username, $password);
        
        return json($result);
    }
    
    /**
     * 删除账号
     */
    public function deleteUser()
    {
        // 强制返回JSON，设置响应头
        header('Content-Type: application/json; charset=utf-8');
        
        $username = $this->request->param('username', '');
        
        if (empty($username)) {
            return json([
                'code' => 0,
                'msg' => '用户名不能为空',
            ]);
        }
        
        $service = new UserService();
        $result = $service->deleteUser($username);
        
        return json($result);
    }
    
    /**
     * 获取BASE_URL配置
     */
    public function getBaseUrl()
    {
        // 强制返回JSON，设置响应头
        header('Content-Type: application/json; charset=utf-8');
        
        try {
            $service = new ConfigService();
            $baseUrl = $service->getBaseUrl();
            
            return json([
                'code' => 1,
                'data' => [
                    'base_url' => $baseUrl,
                ],
                'msg' => '获取成功',
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 0,
                'msg' => '获取失败: ' . $e->getMessage(),
            ]);
        }
    }
    
    /**
     * 设置BASE_URL配置
     */
    public function setBaseUrl()
    {
        // 强制返回JSON，设置响应头
        header('Content-Type: application/json; charset=utf-8');
        
        $baseUrl = $this->request->param('base_url', '');
        
        $service = new ConfigService();
        $result = $service->setBaseUrl($baseUrl);
        
        return json($result);
    }
    
    /**
     * 重置普通用户密码（管理员）
     */
    public function resetUserPassword()
    {
        header('Content-Type: application/json; charset=utf-8');
        
        $username = $this->request->param('username', '');
        $newPassword = $this->request->param('new_password', '');
        
        $service = new UserService();
        $result = $service->resetUserPassword($username, $newPassword);
        return json($result);
    }
    
}