S2OJ/web/app/controllers/group_manage.php

<?php
	requirePHPLib('form');
	requirePHPLib('judger');
	requirePHPLib('data');

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

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

	$group_id = $_GET['id'];
	if (!validateUInt($group_id) || !($group = queryGroup($group_id))) {
		become404Page();
	}

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

	$group_editor = new UOJBlogEditor();
	$group_editor->name = 'group';
	$group_editor->blog_url = null;
	$group_editor->cur_data = array(
		'title' => $group['title'],
		'tags' => array(),
		'is_hidden' => $group['is_hidden']
	);
	$group_editor->label_text = array_merge($group_editor->label_text, array(
		'view blog' => '保存小组信息',
		'blog visibility' => '小组可见性'
	));
	$group_editor->show_editor = false;
	$group_editor->show_tags = false;

	$group_editor->save = function($data) {
		global $group_id, $group;
		DB::update("update `groups` set title = '".DB::escape($data['title'])."' where id = {$group_id}");

		if ($data['is_hidden'] != $group['is_hidden'] ) {
			DB::update("update `groups` set is_hidden = {$data['is_hidden']} where id = {$group_id}");
		}
	};
	$group_editor->runAtServer();

	$add_new_user_form = new UOJForm('add_new_user');
	$add_new_user_form->addInput('new_username', 'text', '用户名', '', 
		function ($x) {
			global $group_id;

			if (!validateUsername($x)) {
				return '用户名不合法';
			}
			$user = queryUser($x);
			if (!$user) {
				return '用户不存在';
			}

			if (queryUserInGroup($group_id, $x)) {
				return '该用户已经在小组中';
			}

			return '';
		},
		null
	);
	$add_new_user_form->submit_button_config['align'] = 'compressed';
	$add_new_user_form->submit_button_config['text'] = '添加到小组';
	$add_new_user_form->handle = function() {
		global $group_id, $myUser;
		$username = $_POST['new_username'];

		DB::insert("insert into groups_users (group_id, username) values ({$group_id}, '{$username}')");
	};
	$add_new_user_form->runAtServer();

	
	$delete_user_form = new UOJForm('delete_user');
	$delete_user_form->addInput('del_username', 'text', '用户名', '', 
		function ($x) {
			global $group_id;

			if (!validateUsername($x)) {
				return '用户名不合法';
			}
			if (!queryUserInGroup($group_id, $x)) {
				return '该用户不在小组中';
			}

			return '';
		},
		null
	);
	$delete_user_form->submit_button_config['align'] = 'compressed';
	$delete_user_form->submit_button_config['text'] = '从小组中删除';
	$delete_user_form->handle = function() {
		global $group_id, $myUser;
		$username = $_POST['del_username'];

		DB::query("delete from groups_users where username='{$username}' and group_id={$group_id}");
	};
	$delete_user_form->runAtServer();

	$add_new_assignment_form = new UOJForm('add_new_assignment');
	$add_new_assignment_form->addInput('new_assignment_list_id', 'text', '题单 ID', '', 
		function ($x) {
			global $group_id;

			if (!validateUInt($x)) {
				return '题单 ID 不合法';
			}
			$list = queryProblemList($x);
			if (!$list) {
				return '题单不存在';
			}
			if ($list['is_hidden'] != 0) {
				return '题单是隐藏的';
			}

			if (queryAssignmentByGroupListID($group_id, $x)) {
				return '该题单已经在作业中';
			}

			return '';
		},
		null
	);
	$default_ddl = new DateTime();
	$default_ddl->setTime(17, 0, 0);
	$default_ddl->add(new DateInterval("P7D"));
	$add_new_assignment_form->addInput('new_assignment_deadline', 'text', '截止时间', $default_ddl->format('Y-m-d H:i'), 
		function ($x) {
			$ddl = DateTime::createFromFormat('Y-m-d H:i', $x);
			if (!$ddl) {
				return '截止时间格式不正确，请以类似 "2020-10-1 17:00" 的格式输入';
			}

			return '';
		},
		null
	);
	$add_new_assignment_form->submit_button_config['align'] = 'compressed';
	$add_new_assignment_form->submit_button_config['text'] = '添加作业';
	$add_new_assignment_form->handle = function() {
		global $group_id, $myUser;
		$list_id = $_POST['new_assignment_list_id'];
		$ddl = DateTime::createFromFormat('Y-m-d H:i', $_POST['new_assignment_deadline']);
		$ddl_str = $ddl->format('Y-m-d H:i:s');

		DB::insert("insert into assignments (group_id, list_id, create_time, deadline) values ({$group_id}, '{$list_id}', now(), '{$ddl_str}')");
	};
	$add_new_assignment_form->runAtServer();

	$remove_assignment_form = new UOJForm('remove_assignment');
	$remove_assignment_form->addInput('remove_assignment_list_id', 'text', '题单 ID', '', 
		function ($x) {
			global $group_id;

			if (!validateUInt($x)) {
				return '题单 ID 不合法';
			}
			if (!queryAssignmentByGroupListID($group_id, $x)) {
				return '该题单不在作业中';
			}

			return '';
		},
		null
	);

	$remove_assignment_form->submit_button_config['align'] = 'compressed';
	$remove_assignment_form->submit_button_config['text'] = '删除作业';
	$remove_assignment_form->handle = function() {
		global $group_id, $myUser;
		$list_id = $_POST['remove_assignment_list_id'];

		DB::query("delete from assignments where list_id='{$list_id}' and group_id={$group_id}");
	};
	$remove_assignment_form->runAtServer();

	$announcement_form = new UOJForm('announcement_form');
	$announcement_form->addVTextArea('announcement_content', '公告', $group['announcement'], 
		function ($x) {
			return '';
		},
		null
	);
	$announcement_form->submit_button_config['text'] = '更新公告';
	$announcement_form->handle = function() {
		global $group_id, $myUser;

		$content = $_POST['announcement_content'];
		$esc_content = DB::escape($content);
		DB::query("update groups set announcement = '{$esc_content}' where id = {$group_id}");
	};
	$announcement_form->runAtServer();
	?>

<?php echoUOJPageHeader($group['title'] . ' 管理'); ?>

<h1 class="h2">
	<?= $group['title'] ?>（#<?= $group['id'] ?>）管理
</h1>

<ul class="nav nav-tabs" role="tablist">
	<li class="nav-item"><a class="nav-link" href="/group/<?= $group['id'] ?>/manage" role="tab">管理</a></li>
	<li class="nav-item"><a class="nav-link" href="/group/<?= $group['id'] ?>" role="tab">返回</a></li>
</ul>

<div class="top-buffer-md"></div>

<h5>编辑小组信息</h5>
<div class="mb-4">
    <?php $group_editor->printHTML(); ?>
</div>

<h5>编辑小组公告</h5>
<?php $announcement_form->printHTML(); ?>

<h5>添加用户到小组</h5>
<?php $add_new_user_form->printHTML(); ?>

<h5>从小组中删除用户</h5>
<?php $delete_user_form->printHTML(); ?>

<h5>为小组添加作业</h5>
<?php $add_new_assignment_form->printHTML(); ?>

<h5>删除小组的作业</h5>
<?php $remove_assignment_form->printHTML(); ?>

<h5>已被自动隐藏的作业</h5>
<ul>
		<?php
	$assignments = queryGroupAssignments($group['id']);
	foreach ($assignments as $ass) {
		$ddl = DateTime::createFromFormat('Y-m-d H:i:s', $ass['deadline']);
		$create_time = DateTime::createFromFormat('Y-m-d H:i:s', $ass['create_time']);
		$now = new DateTime();

		if ($now->getTimestamp() - $ddl->getTimestamp() <= 604800) {
			continue;
		}  // 7d

		echo '<li>';
		echo '<a ';
		if (isset($REQUIRE_LIB['bootstrap5'])) {
			echo ' class="text-decoration-none" ';
		}
		echo ' href="/problem_list/', $ass['list_id'], '">', $ass['title'], ' (题单 #', $ass['list_id'], ')</a>';

		if ($ddl < $now) {
			echo '<sup style="color:red">&nbsp;overdue</sup>';
		} elseif ($ddl->getTimestamp() - $now->getTimestamp() < 86400) {  // 1d
			echo '<sup style="color:red">&nbsp;soon</sup>';
		} elseif ($now->getTimestamp() - $create_time->getTimestamp() < 86400) {  // 1d
			echo '<sup style="color:red">&nbsp;new</sup>';
		}

		$ddl_str = $ddl->format('Y-m-d H:i');
		echo ' (截止时间: ', $ddl_str, '，<a ';
		if (isset($REQUIRE_LIB['bootstrap5'])) {
			echo ' class="text-decoration-none" ';
		}
		echo ' href="/assignment/', $ass['id'], '">查看完成情况</a>)';
		echo '</li>';
	}

	if (count($assignments) == 0) {
		echo '<p>暂无作业</p>';
	}
	?>
</ul>

<?php echoUOJPageFooter() ?>