<?php
namespace Westdc\Member;

use Zend\ServiceManager\ServiceManager;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Westdc\EventModel\AbstractEventManager;
use Zend\Authentication\AuthenticationService;
use Zend\Authentication\Storage\Session as SessionStorage;
use Zend\Authentication\Adapter\DbTable;
use Westdc\Helpers\Assist as view;
use Westdc\Helpers\Config;
use Westdc\Helpers\Dbh as dbh;
use Westdc\Db\Db as Zend_Db;

class Account extends AbstractEventManager implements ServiceManagerAwareInterface
{	
	public $memberTable = "tbl_member";
	public $FieldUsername = "username";
	public $FieldPasword = "password";
	public $FieldLastlogin = "ts_last_login";
	public $FieldEmail = "email";
	public $FieldLastloginIp = "last_login_ip";
	public $GravatarEmailField = "gravatar_email";
	
	public $RoleMember = "member";
	
	private $db;
	protected $events = NULL;		//事件
	private $config;

	function __construct()
	{
		$this->config = Config::get();
	}

    public function init()
    {
        $dbService = $this->serviceManager->get('Db');
        $this->db = $dbService->getPdo();
    }

    public function setServiceManager(ServiceManager $serviceManager)
    {
        $this->serviceManager = $serviceManager;

        $this->init();

        return $this;
    }
	
	//获取账号信息,数组
	public function getAccountInfo($id = 0)
	{
		if($id == 0)
		{
			$id = view::User('id');
		}
		$sql = "SELECT * FROM {$this->memberTable} WHERE id=$id";
		$rs = $this->db->query($sql);
		return $rs->fetch();
	}

    /**
     * 用户注册
     * @param $data
     * @return array
     */
	public function register($data)
	{
		$params = compact('data');
        $results = $this->getEventManager()->trigger('register.pre', $this, $params);
		$cache_data = $results->last();
		
		if($cache_data !== true)
		{
			if(!is_array($cache_data))
			{
				return array('error'=>$cache_data);
			}else{
				return $cache_data;
			}
		}

        /**
         * 将数据分为两组，一组用于做注册成功后的登陆，一组用于写入数据库
         * 写入数据库的数据需要完全重建一个新的，防止因为前端传入时有人恶意增加字段造成破坏
         */
		$loginData = array(
			'username'=>$data['username'],
			'password'=>$data['password']
		);

        $registerData = [
            'username' => $data['username'],
            'password' => md5($data['password']),
            'usertype' => $this->RoleMember,
            'email' => $data['email'],
        ];
		
		$dbh = new dbh();
		
		$id = $dbh->insert($this->memberTable,$registerData,true);
		
		if(!empty($id) && is_numeric($id))
		{
			$this->storeLogin($loginData);

			if(isset($state['success']))
			{
				$mb = new Member();
				$mb->putcookie($data[$this->FieldUsername],$data[$this->FieldPasword]);
			}

			$params = compact('data','id');
        	$this->getEventManager()->trigger('register.success', $this, $params);
			return array("success" => 1);
		}else{
			if($id === false)
			{
				return array('error'=>'服务器开小差了，请稍后再试');
			}else{
				return array('error'=>'服务器处理中遇到错误，请联系管理员');
			}
		}
		
	}//register

    /**
     * 用户登陆
     * @param $data
     * @return array
     */
	public function login($data)
	{
        $results = $this->getEventManager()->trigger('login.pre', $this, compact('data'));
		$cache_data = $results->last();
		
		if($cache_data !== true)
		{
			if(!is_array($cache_data))
			{
				return array('error'=>$cache_data);
			}else{
				return $cache_data;
			}
		}
		
		$state = $this->storeLogin($data);
		
		if(isset($state['success']))
		{
            $mb = new Cookie();
            $mb->putcookie($data[$this->FieldUsername],$data[$this->FieldPasword]);

            $user = (array)$state['user'];
            $this->getEventManager()->trigger('login.success', $this, compact('user'));
		}else{
            $this->getEventManager()->trigger('login.failed', $this, compact('data'));
        }
			
		return $state;
	}//login

    /**
     * 存储用户登陆信息
     * 为了防止login中的用户信息检查不规范，再加入一层内置的数据库权限检查，以防通过漏洞登入系统
     * @param $data
     * @param bool $md5     是否对密码进行md5加密再校验
     * @return array
     */
	private function storeLogin($data,$md5 = true)
	{	
		$auth = new AuthenticationService();
		$auth->setStorage(new SessionStorage($this->config->session_namespace));
		
		new Zend_Db($dbAdapter);

		$authAdapter = new DbTable(
			$dbAdapter,
			'users',
			'username',
			'password'
		);
		
		if($md5 === true)
		{
			$password = md5($data['password']);
		}else{
			$password = $data['password'];
		}
		
		$authAdapter
			->setIdentity($data['username'])
			->setCredential($password)
		;

		$result = $authAdapter->authenticate();

		if(!$result->isValid())
		{
			return array("error"=>"用户信息验证失败");
		}

        $user = $authAdapter->getResultRowObject(null,array('password'));
        $auth->getStorage()->write($user);
		 
		return array(
            'success'=>1,
            'user' => $user
        );
	}//storeLogin
	
	public function cookieLogin($data)
	{
		return $this->storeLogin($data,false);
	}
	
	//注册信息参数
	public function getParam(\Zend_Controller_Request_Abstract $request)
	{
		$data = array(
			'username'=>$request->getParam('username'),
			'password'=>$request->getParam('password'),
			'confirm_password'=>$request->getParam('confirm_password'),
			'email'=>$request->getParam('email'),
			'realname'=>$request->getParam('realname')
		);
		return $data;
	}
	
	//获取用户账户修改参数
	public function getEditParam($request)
	{
		$request = new \Zend\Http\PhpEnvironment\Request;
		
		$type = $request->getPost('type');
		
		if($type == "general")
		{
			$data = array(
				'realname'=>$request->getPost('realname'),
				'signature'=>$request->getPost('signature'),
				'description'=>$request->getPost('description')
			);
		}
		
		if($type == "password")
		{
			$data = array(
				'password' => $request->getPost('password'),
				'password_new'=>$request->getPost('password_new'),
				'password_confirm'=>$request->getPost('password_confirm')
			);
		}
		return $data;
	}
	
	//编辑
	public function edit($data,$type)
	{
		$results = $this->getEventManager()->trigger('edit.checkParam', $this, compact('data','type'));
		$cache_data = $results->last();
		
		if($cache_data !== true)
		{
			return $cache_data;
		}
		
		if($type == "general")
		{
			$data['signature'] = htmlspecialchars($data['signature']);
			$data['description'] = htmlspecialchars($data['description']);
		}else if($type == "password")
		{
			$data['password'] = md5($data['password_new']);
			unset($data['password_new']);
			unset($data['password_confirm']);
		}else{
			return "参数错误";
		}
		
		$dbh = new dbh();
		$uid = view::User('id');
		if($dbh->update($this->memberTable,$data," id=$uid") === true)
		{
			return true;
		}else{
			return false;
		}
	}
	
	//找回密码
	public function getMyPassword($email)
	{
		$pwdListener = new PwdListener;
		$this->getEventManager()->attachAggregate($pwdListener);
		
		$results = $this->getEventManager()->trigger('pwd.forgot.checkParam', $this, compact('email'));
		$cache_data = $results->last();
		
		if($cache_data !== true)
		{
			return $cache_data;
		}

		$sql = "SELECT * FROM {$this->memberTable} WHERE email='$email'";
		$rs = $this->db->query($sql);
		$row = $rs->fetch();
		
		if(!isset($row['username']) || empty($row['username']))
		{
			return array('error'=>"此邮箱并未注册",'place'=>'email');
		}	
		
		$salt = md5($email.'---'.$row['username']);
		
		$sql = "UPDATE {$this->memberTable} SET salt='$salt' WHERE id={$row['id']}";
		$state = $this->db->exec($sql);
		
		if($state<1)
		{
			return array('error'=>"处理中出现错误，请重试",'place'=>'email');
		}
		
		$mail_template = "forgotpassword";
		$mail_data = array(
			'name'=>$row['realname'],
			'link'=> view::getHostLink().'/account/getpassword/?salt='.$salt
		);
		
		
		try{
			$mail = new Mail();
			
			$mail->loadTemplate($mail_template,$mail_data);
			$mail->addTo($email,$row['realname']);
			$mail->send();
		}catch(Exception $e)
		{
			echo "".$e->getMessage();
		}
		return array("success"=>1);
	}
	
	//重置密码
	public function resetPassword($data)
	{
		$results = $this->getEventManager()->trigger('pwd.reset.checkParam', $this, compact('data'));
		$cache_data = $results->last();

		if($cache_data !== true)
		{
			return $cache_data;
		}
		
		$sql = "SELECT * FROM {$this->memberTable} WHERE salt=?";
		$sth = $this->db->prepare($sql);
		$sth->execute(array($data['salt']));
		$row = $sth->fetch();
		
		if(!isset($row['username']) || empty($row['username']))
		{
			return array('error'=>"您提供的校验码不正确，请重新申请重置密码",'place'=>'confirm_password'); 
		}
		
		if($row['username'] !== $data['username'])
		{
			return array('error'=>"您提供的校验码不正确，请重新申请重置密码",'place'=>'confirm_password'); 
		}
		
		$sql = "UPDATE {$this->memberTable} SET password='".md5($data['password'])."',salt='' WHERE id={$row['id']}";
		$this->db->exec($sql);
		
		$mail_template = "getpassworded";
		$mail_data = array(
			'name'=>$row['realname'],
		);
		$mail = new Mail();
		$mail->loadTemplate($mail_template,$mail_data);
		$mail->addTo($row['email'],$row['realname']);
		$mail->send();
		
		return true;
		
	}
	
}