<?php
/**
 * 后台管理系统-登录
 */
namespace app\admin\controller;
use think\App;
use app\AppApi;
use think\facade\Db;
use think\facade\View;
use think\facade\Cookie;
use think\facade\Request;
use app\admin\model\YzAdminConfig;
use app\admin\model\AdminUser;
use app\admin\model\Log\LogsLogin;

class LoginController  extends Base
{
	public $app;
	public $config;

	public function __construct(App $app)
	{
		$this->app = $app;
		$this->config = new YzAdminConfig();
	}

	// 登录页面
	public function index()
	{
		# 获取配置
		$config = $this->config->getAll();
		View::assign([
			'config' => $config
		]);
		return View::fetch();
	}

	// 记录登录日志
	public function recordLoginLog($username, $status, $reason = '')
	{
		$data = [
			'username' => $username,
			'ip_address' => Request::ip(),
			'location' => $this->getLocation(Request::ip()),
			'device_type' => $this->getDeviceType(),
			'user_agent' => Request::header('user-agent'),
			'login_status' => $status,
			'failure_reason' => $reason,
			'login_time' => date('Y-m-d H:i:s')
		];
		LogsLogin::create($data);
	}

	// 获取IP地址位置
	public function getLocation($ip)
	{
		// 这里可以接入IP地址库或第三方API
		return '未知';
	}

	// 获取设备类型
	public function getDeviceType()
	{
		$agent = Request::header('user-agent');
		if (preg_match('/(iPhone|iPod|Android|ios|iPad|Mobile)/i', $agent)) {
			return '移动端';
		}
		return 'PC端';
	}

	// 登录
	public function login()
	{
		if (Request::isPost()) {
			$account = trim(input('post.account'));
			if (empty($account)) {
				$this->recordLoginLog($account, 0, '账号不能为空');
				return json(['code' => 1, 'msg' => '账号不能为空']);
			}
			$pattern = "/^([0-9A-Za-z-_.]+)@([0-9a-z]+.[a-z]{2,3}(.[a-z]{2})?)$/i";
			if (!preg_match($pattern, $account)) {
				$this->recordLoginLog($account, 0, '邮箱格式不正确');
				return json(['code' => 1, 'msg' => '邮箱格式不正确']);
			}
			$password = trim(input('post.password'));
			if (empty($password)) {
				$this->recordLoginLog($account, 0, '密码不能为空');
				return json(['code' => 1, 'msg' => '密码不能为空']);
			}
			$code = trim(input('post.code'));
			if ($code == '') {
				$this->recordLoginLog($account, 0, '验证码不能为空');
				return json(['code' => 1, 'msg' => '验证码不能为空']);
			}
			if (!captcha_check($code)) {
				$this->recordLoginLog($account, 0, '验证码错误');
				return json(['code' => 1, 'msg' => '验证码错误']);
			}
			$aUser = AdminUser::where('account', $account)->find();
			if (empty($aUser)) {
				$this->recordLoginLog($account, 0, '账号不存在');
				return json(['code' => 1, 'msg' => '账号不存在']);
			}
			if ($aUser['status'] != 1) {
				$this->recordLoginLog($account, 0, '账号已被禁用');
				return json(['code' => 1, 'msg' => '账号已被禁用']);
			}
			if ($aUser['password'] != md5($password)) {
				$this->recordLoginLog($account, 0, '密码错误');
				return json(['code' => 1, 'msg' => '密码错误']);
			}
			$remember = input('post.remember');
			if (!empty($remember)) {
				Cookie::set('admin_id', $aUser['uid'], 60 * 60 * 24 * 7);
				Cookie::set('admin_name', $aUser['name'], 60 * 60 * 24 * 7);
			} else {
				Cookie::set('admin_id', $aUser['uid']);
				Cookie::set('admin_name', $aUser['name']);
			}
			AdminUser::where('uid', $aUser['uid'])->update(
				['login_count' => $aUser['login_count'] + 1, 'update_time' => time()]
			);
			// 记录登录成功日志
			$this->recordLoginLog($account, 1);
			return json(['code' => 0, 'msg' => '登录成功', 'data' => []]);
		}
	}

	// 退出
	public function logout()
	{
		Cookie::delete('admin_id');
		Cookie::delete('admin_name');
		return json(['code' => 0, 'msg' => '退出成功', 'data' => []]);
	}

	// 密码重置页面
	public function resetpwdindex()
	{
		return View::fetch('resetpwd');
	}

	//管理员密码重置
	public function resetpwd()
	{
		$account = trim(input('post.account'));
		if (empty($account)) {
			return json(['code' => 1, 'msg' => '账号不能为空']);
		}

		$user = AdminUser::where('account', $account)->find();

		if (!$user) {
			return json(['code' => 1, 'msg' => '未找到该用户名']);
		}

		// 使用md5进行密码加密处理
		$password = md5('123456');

		try {
			$res = AdminUser::where('account', $account)
				->update(['password' => $password]);

			if ($res === false) {
				return json(['code' => 1, 'msg' => '数据库更新失败']);
			}

			if ($res === 0) {
				return json(['code' => 1, 'msg' => '密码未发生变化']);
			}

			return json(['code' => 0, 'msg' => '密码重置成功', 'data' => []]);
		} catch (\Exception $e) {
			return json(['code' => 1, 'msg' => '系统错误：' . $e->getMessage()]);
		}
	}
	
}