<?php
	requirePHPLib('form');

	if (!Auth::check()) {
		redirectToLogin();
	}

	if (!isNormalUser($myUser)) {
		become403Page();
	}

	if (!validateUInt($_GET['id']) || !($contest = queryContest($_GET['id']))) {
		become404Page();
	}
	genMoreContestInfo($contest);
	
	if (!isSuperUser($myUser)) {
		become403Page();
	}
	
	$time_form = new UOJForm('time');
	$time_form->addInput(
		'name', 'text', '比赛标题', $contest['name'],
		function($str) {
			return '';
		},
		null
	);
	$time_form->addInput(
		'start_time', 'text', '开始时间', $contest['start_time_str'],
		function($str, &$vdata) {
			try {
				$vdata['start_time'] = new DateTime($str);
			} catch (Exception $e) {
				return '无效时间格式';
			}
			return '';
		},
		null
	);
	$time_form->addInput(
		'last_min', 'text', '时长（单位：分钟）', $contest['last_min'],
		function($str) {
			return !validateUInt($str) ? '必须为一个整数' : '';
		},
		null
	);
	$time_form->handle = function(&$vdata) {
		global $contest;
		$start_time_str = $vdata['start_time']->format('Y-m-d H:i:s');
		
		$purifier = HTML::pruifier();
		
		$esc_name = $_POST['name'];
		$esc_name = $purifier->purify($esc_name);
		$esc_name = DB::escape($esc_name);
		
		DB::update("update contests set start_time = '$start_time_str', last_min = {$_POST['last_min']}, name = '$esc_name' where id = {$contest['id']}");
	};
	
	$managers_form = newAddDelCmdForm('managers',
		function($username) {
			if (!validateUsername($username) || !queryUser($username)) {
				return "不存在名为{$username}的用户";
			}
			return '';
		},
		function($type, $username) {
			global $contest;

			if ($type == '+') {
				DB::query("insert into contests_permissions (contest_id, username) values (${contest['id']}, '$username')");
			} elseif ($type == '-') {
				DB::query("delete from contests_permissions where contest_id = ${contest['id']} and username = '$username'");
			}
		}
	);
	
	$problems_form = newAddDelCmdForm('problems',
		function($cmd) {
			if (!preg_match('/^(\d+)\s*(\[\S+\])?$/', $cmd, $matches)) {
				return "无效题号";
			}
			$problem_id = $matches[1];
			if (!validateUInt($problem_id) || !($problem = queryProblemBrief($problem_id))) {
				return "不存在题号为{$problem_id}的题";
			}
			if (!hasProblemPermission(Auth::user(), $problem)) {
				return "无权添加题号为{$problem_id}的题";
			}
			return '';
		},
		function($type, $cmd) {
			global $contest;
			
			if (!preg_match('/^(\d+)\s*(\[\S+\])?$/', $cmd, $matches)) {
				return "无效题号";
			}
			
			$problem_id = $matches[1];
			
			if ($type == '+') {
				$dfn = DB::selectFirst("select max(dfn) from contests_problems where contest_id = {$contest['id']}")['max(dfn)'] + 1;
				DB::insert("insert into contests_problems (contest_id, problem_id, dfn) values ({$contest['id']}, '$problem_id', $dfn)");
			} elseif ($type == '-') {
				DB::delete("delete from contests_problems where contest_id = {$contest['id']} and problem_id = '$problem_id'");
			}
			
			if (isset($matches[2])) {
				switch ($matches[2]) {
					case '[sample]':
						unset($contest['extra_config']["problem_$problem_id"]);
						break;
					case '[full]':
						$contest['extra_config']["problem_$problem_id"] = 'full';
						break;
					case '[no-details]':
						$contest['extra_config']["problem_$problem_id"] = 'no-details';
						break;
				}
				$esc_extra_config = json_encode($contest['extra_config']);
				$esc_extra_config = DB::escape($esc_extra_config);
				DB::update("update contests set extra_config = '$esc_extra_config' where id = {$contest['id']}");
			}
		}
	);
	
	if (isSuperUser($myUser)) {
		$version_form = new UOJForm('version');
		$version_form->addInput('standings_version', 'text', '排名版本', $contest['extra_config']['standings_version'],
			function ($x) {
				if (!validateUInt($x) || $x < 1 || $x > 2) {
					return '不是合法的版本号';
				}
				return '';
			},
			null
		);
		$version_form->handle = function() {
			global $contest;
			$contest['extra_config']['standings_version'] = $_POST['standings_version'];
			$esc_extra_config = json_encode($contest['extra_config']);
			$esc_extra_config = DB::escape($esc_extra_config);
			DB::update("update contests set extra_config = '$esc_extra_config' where id = {$contest['id']}");
		};
		$version_form->runAtServer();

		$contest_type_form = new UOJForm('contest_type');
		$contest_type_form->addInput('contest_type', 'text', '赛制', $contest['extra_config']['contest_type'],
			function ($x) {
				if ($x != 'OI' && $x != 'ACM' && $x != 'IOI') {
					return '不是合法的赛制名';
				}
				return '';
			},
			null
		);
		$contest_type_form->handle = function() {
			global $contest;
			$contest['extra_config']['contest_type'] = $_POST['contest_type'];
			$esc_extra_config = json_encode($contest['extra_config']);
			$esc_extra_config = DB::escape($esc_extra_config);
			DB::update("update contests set extra_config = '$esc_extra_config' where id = {$contest['id']}");
		};
		$contest_type_form->runAtServer();
	}
	
	$time_form->runAtServer();
	$managers_form->runAtServer();
	$problems_form->runAtServer();

	$blog_link_contests = new UOJForm('blog_link_contests');
	$blog_link_contests->addInput('blog_link_contests__blog_id', 'text', '博客ID', '',
		function ($x) {
			if (!validateUInt($x)) {
				return 'ID不合法';
			}
			if (!queryBlog($x)) {
				return '博客不存在';
			}
			return '';
		},
		null
	);
	$blog_link_contests->addInput('blog_link_contests__title', 'text', '标题', '',
		function ($x) {
			return '';
		},
		null
	);
	$options = array(
		'add' => '添加',
		'del' => '删除'
	);
	$blog_link_contests->addSelect('blog_link_contests__op-type', $options, '操作类型', '');
	$blog_link_contests->handle = function() {
		global $contest;

		$blog_id = $_POST['blog_link_contests__blog_id'];
		$contest_id = $contest['id'];
		$str = DB::selectFirst("select * from contests where id='${contest_id}'");
		$all_config = json_decode($str['extra_config'], true);
		$config = $all_config['links'];

		$n = count($config);
		
		if ($_POST['blog_link_contests__op-type'] == 'add') {
			$row = array();
			$row[0] = $_POST['blog_link_contests__title'];
			$row[1] = $blog_id;
			$config[$n] = $row;
		}
		if ($_POST['blog_link_contests__op-type'] == 'del') {
			for ($i = 0; $i < $n; $i++) {
				if ($config[$i][1] == $blog_id) {
					$config[$i] = $config[$n - 1];
					unset($config[$n - 1]);
					break;
				}
			}
		}

		$all_config['links'] = $config;
		$str = json_encode($all_config);
		$str = DB::escape($str);
		DB::query("update contests set extra_config='${str}' where id='${contest_id}'");
	};
	$blog_link_contests->runAtServer();
	
	?>
<?php echoUOJPageHeader(HTML::stripTags($contest['name']) . ' - 比赛管理') ?>
<h1 class="page-header" align="center"><?=$contest['name']?> 管理</h1>
<ul class="nav nav-tabs mb-3" role="tablist">
	<li class="nav-item"><a class="nav-link active" href="#tab-time" role="tab" data-toggle="tab">比赛时间</a></li>
	<li class="nav-item"><a class="nav-link" href="#tab-managers" role="tab" data-toggle="tab">管理者</a></li>
	<li class="nav-item"><a class="nav-link" href="#tab-problems" role="tab" data-toggle="tab">试题</a></li>
	<li class="nav-item"><a class="nav-link" href="#tab-blogs" role="tab" data-toggle="tab">比赛资料</a></li>
	<?php if (isSuperUser($myUser)): ?>
	<li class="nav-item"><a class="nav-link" href="#tab-others" role="tab" data-toggle="tab">其它</a></li>
	<?php endif ?>
	<li class="nav-item"><a class="nav-link" href="/contest/<?=$contest['id']?>" role="tab">返回</a></li>
</ul>
<div class="tab-content top-buffer-sm">
	<div class="tab-pane active" id="tab-time">
		<?php $time_form->printHTML(); ?>
	</div>
	
	<div class="tab-pane" id="tab-managers">
		<table class="table table-hover">
			<thead>
				<tr>
					<th>#</th>
					<th>用户名</th>
				</tr>
			</thead>
			<tbody>
<?php
		$row_id = 0;
	$result = DB::query("select username from contests_permissions where contest_id = {$contest['id']}");
	while ($row = DB::fetch($result, MYSQLI_ASSOC)) {
		$row_id++;
		echo '<tr>', '<td>', $row_id, '</td>', '<td>', getUserLink($row['username']), '</td>', '</tr>';
	}
	?>
			</tbody>
		</table>
		<p class="text-center">命令格式：命令一行一个，+mike表示把mike加入管理者，-mike表示把mike从管理者中移除</p>
		<?php $managers_form->printHTML(); ?>
	</div>
	
	<div class="tab-pane" id="tab-problems">
		<table class="table table-hover">
			<thead>
				<tr>
					<th>#</th>
					<th>试题名</th>
				</tr>
			</thead>
			<tbody>
<?php
		$result = DB::query("select problem_id from contests_problems where contest_id = ${contest['id']} order by dfn, problem_id");
	while ($row = DB::fetch($result, MYSQLI_ASSOC)) {
		$problem = queryProblemBrief($row['problem_id']);
		$problem_config_str = isset($contest['extra_config']["problem_{$problem['id']}"]) ? $contest['extra_config']["problem_{$problem['id']}"] : 'sample';
		echo '<tr>', '<td>', $problem['id'], '</td>', '<td>', getProblemLink($problem), ' ', "[$problem_config_str]", '</td>', '</tr>';
	}
	?>
			</tbody>
		</table>
		<p class="text-center">命令格式：命令一行一个，+233表示把题号为233的试题加入比赛，-233表示把题号为233的试题从比赛中移除</p>
		<?php $problems_form->printHTML(); ?>
	</div>
	<div class="tab-pane" id="tab-blogs">
		<?php $blog_link_contests->printHTML(); ?>
	</div>
	<?php if (isSuperUser($myUser)): ?>
	<div class="tab-pane" id="tab-others">
		<div class="row">
			<div class="col-sm-12 top-buffer-sm">
				<h3>版本控制</h3>
				<?php $version_form->printHTML(); ?>
			</div>
			<div class="col-sm-12 top-buffer-sm">
				<h3>赛制</h3>
				<?php $contest_type_form->printHTML(); ?>
			</div>
		</div>
	</div>
	<?php endif ?>
</div>
<?php echoUOJPageFooter() ?>