<?php
/**
 * BusinessAdmin: administrative software for small companies
 * Copyright (C) 2015 Camil Staps (ViviSoft)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

require_once(__DIR__ . '/../index.php');
require_once(__DIR__ . '/../login.php');
require('./header.php');
?>

<div id="wrapper">

	<?php require('./nav.php'); ?>

	<div id="page-wrapper">
		<div class="row">
			<?php
			//------------------------------------------------------------------------------
			// Check for GET variables
			//
			// ?id=<id>           View information of the assignment with id <id>
			// ?delete=<id>       Delete the assignment with id <id>
			//------------------------------------------------------------------------------

			// The header of the page
			$header = 'Assignments';
			// Whether or not to show an individual assignment in the end (false if not, or the id if yes)
			$show_individual = false;

			// View assignment
			if (isset($_GET['id'])) {
				$id = (int) $_GET['id'];
				try {
					$assignment = new Assignment($_pdo, $id);
					$header = "<a href='".Constants::url_external."assignments'>Assignments</a> / {$assignment->title}";
					$show_individual = $id;
				} catch (PDOException $e) {
					$alert = "<div class='alert alert-danger alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment with id $id</i> could not be found.</div>";
				} catch (Exception $e) {
					$alert = "<div class='alert alert-warning alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment with id $id</i> could not be found.</div>";
				}
			}

			// Show the header
			echo "<div class='col-lg-12'><h1 class='page-header'>$header</h1></div>";
			if (isset($alert)) echo "<div class='col-lg-12'>$alert</div>";

			// Delete assignment
			if (isset($_GET['delete'])) {
				echo "<div class='col-lg-12'>";
				$id = (int) $_GET['delete'];
				try {
					$assignment = new Assignment($_pdo, $id);
					if ($assignment->delete()) {
						echo "<div class='alert alert-success alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment with title <i>{$assignment->title}</i> has been removed.</div>";
					} else {
						echo "<div class='alert alert-warning alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment with title <i>{$assignment->title}</i> could not be removed. Perhaps it's already removed?</div>";
					}
				} catch (PDOException $e) {
					echo "<div class='alert alert-danger alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment could not be removed due to a PDO error.</div>";
				} catch (Exception $e) {
					echo "<div class='alert alert-warning alert-dismissable'><button type='button' class='close fa fa-times' data-dismiss='alert' aria-hidden='true'></button>The assignment with id {$id} could not be found.</div>";
				}

				echo "</div>";
			}

			if ($show_individual !== false) {
				$_id = $show_individual;
				require('assignments-view.php');
			} else {
				require('assignments-overview.php');
			}
			?>
		</div>
		<!-- /.row -->
	</div>
	<!-- /#page-wrapper -->

</div>
<!-- /#wrapper -->

<?php
require('./footer.php');
?>