<?php
require_once '../path.php';
require_once "../public/load_lang.php";
require_once "../public/_pdo.php";
require_once "../public/function.php";


	if(isset($_GET["op"])){
		$op=$_GET["op"];
	}
	else{
		$op="login";
	}

	
	switch($op){
		case "login":
		{
			if(isset($_GET["url"])){
				$goto_url = $_GET["url"];
			}
			break;
		}
		case "logout":
		{
			if(isset($_COOKIE["nickname"])){
				$message_comm = $_local->gui->user." ".$_COOKIE["nickname"]." ".$_local->gui->loged_out;
			}
			setcookie("uid", "", time()-60,"/");
			setcookie("username", "", time()-60,"/");
			setcookie("userid", "", time()-60,"/");
			setcookie("nickname", "", time()-60,"/");
			setcookie("email", "", time()-60,"/");
			break;
		}
		case "new":
		{
			$host = $_SERVER['HTTP_HOST'];
			if(strpos ($host,"wikipali.org") !== FALSE){
				echo "网站正处于开发阶段。目前不支持注册。";
				exit;
			}
			break;
		}
	}
	
	$post_nickname = "";
	$post_username = "";
	$post_password = "";
	$post_email = "";
	if(isset($_POST["op"]) && $_POST["op"]=="new"){
		$op="new";
		$post_username=$_POST["username"];
		$post_password=$_POST["password"];
		$post_nickname=$_POST["nickname"];
		$post_email=$_POST["email"];
		if(empty($post_username)){
			$error_username = $_local->gui->account.$_local->gui->cannot_empty;
		}
		if(empty($post_password)){
			$error_password = $_local->gui->password.$_local->gui->cannot_empty;
		}
		if(empty($post_nickname)){
			$error_nickname = $_local->gui->nick_name.$_local->gui->cannot_empty;
		}
		if(!empty($post_username) && !empty($post_password) && !empty($post_nickname)){
			$md5_password=md5($post_password);
			$new_userid=UUID::v4();
			PDO_Connect("sqlite:"._FILE_DB_USERINFO_);
			$query = "select * from user where \"username\"=".$PDO->quote($post_username);
			$Fetch = PDO_FetchAll($query);
			$iFetch=count($Fetch);
			if($iFetch>0){//username is existed
				$error_username = $_local->gui->account_existed;
			}
			else{
				$query="INSERT INTO user ('id','userid','username','password','nickname','email') VALUES (NULL,".$PDO->quote($new_userid).",".$PDO->quote($post_username).",".$PDO->quote($md5_password).",".$PDO->quote($post_nickname).",".$PDO->quote($post_email).")";
				$stmt = @PDO_Execute($query);
				if (!$stmt || ($stmt && $stmt->errorCode() != 0)) {
					$error = PDO_ErrorInfo();
					$error_comm = $error[2]."抱歉！请再试一次";
				}
				else{
					//created user recorder 
					$newUserPath=_DIR_USER_BASE_.'/'.$new_userid;
					$userDirMyDocument=$newUserPath._DIR_MYDOCUMENT_;
					if(!file_exists($newUserPath)){
						if(mkdir($newUserPath)){
							mkdir($userDirMyDocument);
						}
						else{
							$error_comm = "建立用户目录失败，请联络网站管理员。";
						}
					}
					$message_comm = "新账户建立成功";
					$op="login";
					unset($_POST["username"]);
				}
			}
		}
		else{
			
		}		
	}
	else{
		if(isset($_POST["username"])){
			$_username_ok = true;
			if($_POST["username"]==""){
				$_username_ok=false;
				$_post_error=$_local->gui->account.$_local->gui->account_existed;
			}
			else if(isset($_POST["password"])){
				$md5_password=md5($_POST["password"]);
				PDO_Connect("sqlite:"._FILE_DB_USERINFO_);
				$query = "select * from user where (\"username\"=".$PDO->quote($_POST["username"])." or \"email\"=".$PDO->quote($_POST["username"])." ) and \"password\"=".$PDO->quote($md5_password);
				$Fetch = PDO_FetchAll($query);
				$iFetch=count($Fetch);
				if($iFetch>0){//username is exite
					$uid=$Fetch[0]["id"];
					$username=$Fetch[0]["username"];
					$userid=$Fetch[0]["userid"];
					$nickname=$Fetch[0]["nickname"];
					$email=$Fetch[0]["email"];
					setcookie("uid", $uid, time()+60*60*24*365,"/");
					setcookie("username", $username, time()+60*60*24*365,"/");
					setcookie("userid", $userid, time()+60*60*24*365,"/");
					setcookie("nickname", $nickname, time()+60*60*24*365,"/");
					setcookie("email", $email, time()+60*60*24*365,"/");
					if(isset($_POST["url"])){
						$goto_url = $_POST["url"];
					}
					if(isset($_COOKIE["url"])){
						setcookie("pwd_set", "on", time()+60,"/");
					}
					$newUserPath=_DIR_USER_BASE_.'/'.$userid.'/';
					if(!file_exists($newUserPath)){
						echo "error:cannot find user dir:$newUserPath<br/>";
					}
?>

<!DOCTYPE html>
<html>
	<head>

		<title>wikipali starting</title>
		<?php
		if(isset($goto_url)){
			$goto = $goto_url;
		}
		else{
			$goto = "../studio/index.php";
		}
		?>
		<meta http-equiv="refresh" content="0,<?php echo $goto;?>"/>
	</head>
	
	<body>
	
		<br>
		<br>
		<p align="center"><a href="../studio/index.php">Auto Redirecting to Homepage! IF NOT WORKING, CLICK HERE</a></p>
    </body>
</html>
<?php
					
					exit;
				}
				else{
					$_post_error=$_local->gui->incorrect_ID_PASS;
				}
			}
		}
	}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
		<link type="text/css" rel="stylesheet" href="../studio/css/font.css"/>
		<link type="text/css" rel="stylesheet" href="../studio/css/style.css"/>
		<link type="text/css" rel="stylesheet" href="../studio/css/color_day.css" id="colorchange" />
		<title>wikipali login</title>
		<script src="../public/js/comm.js"></script>
		<script src="../studio/js/jquery-3.3.1.min.js"></script>
		<script src="../studio/js/fixedsticky.js"></script>
<style>
#login_body{
	display: flex;
	padding: 2em;
	margin: auto;
}
#login_left {
	padding-right: 12em;
	padding-top: 5em;
}
.title{
	font-size: 150%;
	margin-top: 1em;
	margin-bottom: 0.5em;
}
#login_form{
	padding: 2em 0 1em 0;
}
#tool_bar {
	padding: 1em;
	display: flex;
	justify-content: space-between;
}
#login_shortcut {
	display: flex;
	flex-direction: column;
	padding: 2em 0;
}
#login_shortcut button{
	height:3em;
}
#button_area{
	text-align: right;
	    padding: 1em 0;
}
.form_help{
	font-weight: 400;
	color: var(--bookx);
}
.login_form input{
	margin-top:2em;
	padding:0.5em 0.5em;
}
.login_form select{
	margin-top:2em;
	padding:0.5em 0.5em;
}
.login_form input[type="submit"]{
	margin-top:2em;
	padding:0.1em 0.5em;
} 

.form_error{
	color:var(--error-text);
}
#login_form_div{
	width:30em;
}

#ucenter_body {
	display: flex;
	flex-direction: column;
	margin: 0;
	padding: 0;
	background-color: var(--tool-bg-color3);
	color: var(--btn-color);
}
.icon_big {
	height: 2em;
	width: 2em;
	fill: var(--btn-color);
	transition: all 0.2s ease;
}
.form_field_name{
	position: absolute;
	margin-left: 7px;
	margin-top: 2em;
	color: var(--btn-border-line-color);
	-webkit-transition-duration: 0.4s;
	-moz-transition-duration: 0.4s;
	transition-duration: 0.4s;
	transform: translateY(0.5em);
}
.viewswitch_on {
	position: absolute;
	margin-left: 7px;
	margin-top: 1.5em;
	color: var(--bookx);
	-webkit-transition-duration: 0.4s;
	-moz-transition-duration: 0.4s;
	transition-duration: 0.4s;
	transform: translateY(-15px);
}

</style>
		<script>

		function login_init(){
			$("input").focus(function(){
				let name = $(this).attr("name");
				var objNave = document.getElementById("tip_"+name);
				objNave.className = "viewswitch_on";
			});	
			$(".form_field_name").click(function(){
				let id = $(this).attr("id");
				var objNave = document.getElementById(id);
				objNave.className = "viewswitch_on";
				let arrId=id.split("_");
				document.getElementById('input_'+arrId[1]).focus();
			});	
			
		}
		</script>
	<link type="text/css" rel="stylesheet" href="mobile.css" media="screen and (max-width:767px)">
	</head>
	<body id="ucenter_body" onload="login_init()">
	<div id="tool_bar">
		<div>
		</div>
		<div>
		<?php
		require_once '../lang/lang.php';
		?>
		</div>
	</div>	
	<div id="login_body" >

	<div id="login_left">
		<div  >
			<svg  style="height: 8em;width: 25em;">
				<use xlink:href="../public/images/svg/wikipali_login_page.svg#logo_login"></use>
			</svg>
		</div>	
		<div style="    padding: 1em 0 0 3.5em;font-weight: 400;">
		<?php echo $_local->gui->pali_literature_platform;?>
		<ul style="padding-left: 1.2em;">
			<li><?php echo $_local->gui->online_dict_db;?></li>
			<li><?php echo $_local->gui->user_data_share;?></li>
			<li><?php echo $_local->gui->cooperate_edit;?></li>
		</ul>
		</div>
	</div>	
	<div id="login_right">
		<div id = "login_form_div" class="fun_block" >
		
		<?php
		$host = $_SERVER['HTTP_HOST'];
		if(strpos ($host,"wikipali.org") !== FALSE){
			echo "网站正处于开发阶段。目前不支持注册。";
		}
		if(isset($error_comm)){
			echo '<div class="form_error">';
			echo $error_comm;
			echo '</div>';
		}
		if(isset($message_comm)){
			echo '<div class="form_help">';
			echo $message_comm;
			echo '</div>';
		}
		if($op=="new"){
		?>
			<div class="title">
			<?php echo $_local->gui->join_wikipali;?>
			</div>
			<div class="login_new">
				<span class="form_help"><?php echo $_local->gui->have_account;?> ？</span><a href="index.php?language=<?php echo $currLanguage;?>">&nbsp;&nbsp;&nbsp;&nbsp;<?php echo $_local->gui->login;//登入账户?></a>
			</div>
			<div class="login_form" style="    padding: 3em 0 3em 0;">
			<form action="index.php" method="post">
				<div>
				<div>
				    <span id='tip_nickname' class='form_field_name'><?php echo $_local->gui->nick_name;?></span>
					<input type="input" name="nickname" value="<?php echo $nickname;?>" />
				</div>	
					<div class="form_help">
						<?php echo $_local->gui->name_for_show;?>
					</div>
					
					<div id="error_nickname" class="form_error">
						<?php
						if(isset($error_nickname)){echo $error_nickname;}
						?>
					</div>
					<div>
					<select name="language" style="width: 100%;">
						<option><?php echo $_local->language->en;?></option>
						<option><?php echo $_local->language->zh_cn;?></option>
						<option><?php echo $_local->language->zh_tw;?></option>
						<option><?php echo $_local->language->my;?></option>
						<option><?php echo $_local->language->si;?></option>
					</select>
					</div>
					
					<div>
						<span id='tip_email' class='form_field_name'><?php echo $_local->gui->email_address;?></span>
						<input type="input" name="email"  value="<?php echo $post_email;?>" />
					</div>
					
					<div>
						<span id='tip_username' class='form_field_name'><?php echo $_local->gui->account;?></span>
						<input type="input" name="username"  value="<?php echo $post_username;?>" />
					</div>
					
					<div id="error_username" class="form_error">
						<?php
						if(isset($error_username)){echo $error_username;}
						?>
					</div>
					
					<div class="form_help">
						<?php echo $_local->gui->account_demond;?>
					</div>
					<div>
						<span id='tip_password' class='form_field_name'><?php echo $_local->gui->password;?></span>
						<input type="password" name="password"  value="<?php echo $post_password;?>" />
						<input type="password" name="repassword"  value="<?php echo $post_password;?>" />
					</div>
					<div class="form_help">
					<?php echo $_local->gui->password_demond;?>
					</div>
					
					<div id="error_password" class="form_error">
					<?php
					if(isset($error_password)){echo $error_password;}
					?>
					</div>
					<input type="hidden" name="op" value="new" />
				</div>
				<div id="button_area">
					<input type="submit" value="<?php echo $_local->gui->continue;?>" style="background-color: var(--link-hover-color);border-color: var(--link-hover-color);" />
				</div>
				</form>
			</div>			
			
		<?php
		}
		else{
		?>
			<div class="title">
			<?php
			if(isset($_POST["username"]) && $_username_ok==true){
				echo $_POST["username"];
			}
			else{
				echo $_local->gui->login;
			}
			?>
			</div>
			<div class="login_new">
			<?php
			if(isset($_POST["username"]) && $_username_ok==true){
				echo '<a href="index.php?language='.$currLanguage.'">切换账户</a>';
			}
			else{
				echo '<span class="form_help">'.$_local->gui->new_to_wikipali.' ？</span><a href="index.php?language='.$currLanguage.'&op=new">&nbsp;&nbsp;&nbsp;&nbsp;'.$_local->gui->create_account.'</a>';
			}
			?>
				
			
			<div class="login_form" style="padding: 3em 0 3em 0;">
			<form action="index.php" method="post">
				<div>
				<?php
				if(isset($goto_url)){
					echo "<input type=\"hidden\" name=\"url\" value=\"{$goto_url}\"  />";
				}
				else if(isset($_POST["url"])){
					echo "<input type=\"hidden\" name=\"url\" value=\"{$_POST["url"]}\"  />";
				}
				if(isset($_POST["username"]) && $_username_ok==true){
					echo "<span id='tip_password' class='form_field_name'>".$_local->gui->password."</span>";
					echo '<input type="password" name="password" />';
					echo "<input type=\"hidden\" name=\"username\" value=\"{$_POST["username"]}\"  />";
					if(isset($_post_error)){
						echo '<div id="error_nikename" class="form_error">';
						echo $_post_error;
						echo '</div>';
					}
				}
				else{
					echo "<span id='tip_username' class='form_field_name'>".$_local->gui->account."/".$_local->gui->e_mail."</span>";
					echo '<input type="input" name="username" id="input_username" />';
					if(isset($_post_error)){
						echo '<div id="error_nikename" class="form_error">';
						echo $_post_error;
						echo '</div>';
					}
				}
				?>
				</div>
				<div id="button_area">
					<input type="submit" value="<?php echo $_local->gui->continue;?>" style="background-color: var(--link-hover-color);border-color: var(--link-hover-color);" />
				</div>
				</form>
			</div>
			<div id="login_shortcut">
				<button class="form_help"><?php echo $_local->gui->login_with_google;?>&nbsp;
					<svg class="icon">
						<use xlink:href="../studio/svg/icon.svg#google_logo"></use>
					</svg>
				</button>
				<button class="form_help"><?php echo $_local->gui->login_with_facebook;?>&nbsp;
					<svg class="icon">
						<use xlink:href="../studio/svg/icon.svg#facebook_logo"></use>
					</svg>
				</button>
				<button class="form_help"><?php echo $_local->gui->login_with_wechat;?>&nbsp;
					<svg class="icon">
						<use xlink:href="../studio/svg/icon.svg#wechat_logo"></use>
					</svg>
				</button>
			</div>			
			<?php
		}
			?>

		</div>	
	</div>	
	</div>
	<script>
	login_init();
	</script>
	</body>
</html>