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calendar.php
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calendar.php
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<?php
session_start();
require 'config.php';
$pdo = new PDO("mysql:host=$host;dbname=$dbname", $db_username, $db_password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
if (!isset($_SESSION['user_id']) && !isset($_COOKIE['rememberMe'])) {
header('Location: login.php');
exit();
} elseif (!isset($_SESSION['user_id']) && isset($_COOKIE['rememberMe'])) {
$rememberToken = $_COOKIE['rememberMe'];
$userStmt = $pdo->prepare("SELECT id, name, role, timezone, urgency_green, urgency_critical FROM users WHERE remember_token = ?");
$userStmt->execute([$rememberToken]);
$userDetails = $userStmt->fetch();
if ($userDetails) {
$_SESSION['user_id'] = $userDetails['id'];
$_SESSION['username'] = $userDetails['name'];
$_SESSION['timezone'] = $userDetails['timezone'];
$_SESSION['urgency_green'] = $userDetails['urgency_green'];
$_SESSION['urgency_critical'] = $userDetails['urgency_critical'];
} else {
header('Location: login.php');
exit();
}
} else {
$userId = $_SESSION['user_id'];
$userStmt = $pdo->prepare("SELECT name, role, timezone, urgency_green, urgency_critical FROM users WHERE id = ?");
$userStmt->execute([$userId]);
$userDetails = $userStmt->fetch();
}
$userTimezone = new DateTimeZone($userDetails['timezone'] ?? 'UTC');
$nowInUserTimezone = new DateTime('now', $userTimezone); // Define $nowInUserTimezone here
$urgencyGreen = $userDetails['urgency_green'];
$urgencyCritical = $userDetails['urgency_critical'];
$currentMonth = isset($_GET['month']) ? $_GET['month'] : date('m');
$currentYear = isset($_GET['year']) ? $_GET['year'] : date('Y');
$firstDayOfMonth = new DateTime("$currentYear-$currentMonth-01", $userTimezone);
$firstDayOfMonth->modify('first day of this month');
$dayOfWeek = $firstDayOfMonth->format('w');
$startDayOfWeek = clone $firstDayOfMonth;
if ($dayOfWeek != 0) {
$startDayOfWeek->modify('-' . $dayOfWeek . ' days');
}
$lastDayOfMonth = clone $firstDayOfMonth;
$lastDayOfMonth->modify('last day of this month');
$endDayOfWeek = clone $lastDayOfMonth;
if ($lastDayOfMonth->format('w') != 6) {
$endDayOfWeek->modify('+'.(6 - $lastDayOfMonth->format('w')).' days');
}
$taskStmt = $pdo->prepare("
SELECT t.* FROM tasks t
LEFT JOIN group_memberships gm ON t.group_id = gm.group_id
WHERE (t.user_id = ? OR gm.user_id = ?) AND t.due_date BETWEEN ? AND ?
GROUP BY t.id
ORDER BY t.due_date ASC
");
$taskStmt->execute([
$_SESSION['user_id'],
$_SESSION['user_id'],
$startDayOfWeek->format('Y-m-d'),
$endDayOfWeek->format('Y-m-d')
]);
$tasks = $taskStmt->fetchAll();
$previousMonth = date('m', strtotime('-1 month', strtotime("$currentYear-$currentMonth-01")));
$previousYear = date('Y', strtotime('-1 month', strtotime("$currentYear-$currentMonth-01")));
$nextMonth = date('m', strtotime('+1 month', strtotime("$currentYear-$currentMonth-01")));
$nextYear = date('Y', strtotime('+1 month', strtotime("$currentYear-$currentMonth-01")));
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>To Do Calendar</title>
<link rel="stylesheet" href="stylesheet.css">
</head>
<body>
<div class="calendar-container">
<h1>Calendar</h1>
<div class="month-navigation">
<button onclick="location.href='?year=<?php echo $previousYear; ?>&month=<?php echo $previousMonth; ?>'" class="btn calendar-navigation-btn previous-month">Previous</button>
<span><?php echo date('F Y', strtotime("$currentYear-$currentMonth-01")); ?></span>
<button onclick="location.href='?year=<?php echo $nextYear; ?>&month=<?php echo $nextMonth; ?>'" class="btn calendar-navigation-btn next-month">Next</button>
</div>
<div class="calendar">
<table>
<thead>
<tr>
<th>Sun</th>
<th>Mon</th>
<th>Tue</th>
<th>Wed</th>
<th>Thu</th>
<th>Fri</th>
<th>Sat</th>
</tr>
</thead>
<tbody>
<?php
$currentDate = clone $startDayOfWeek;
while ($currentDate <= $endDayOfWeek) {
if ($currentDate > $lastDayOfMonth && $currentDate->format('w') == 0) {
break;
}
echo "<tr>";
for ($i = 0; $i < 7; $i++) {
echo "<td>";
echo "<div class='date-box'>";
if ($currentDate >= $firstDayOfMonth && $currentDate <= $lastDayOfMonth) {
$isToday = $currentDate->format('Y-m-d') === $nowInUserTimezone->format('Y-m-d');
$dateClass = $isToday ? "date current-day" : "date";
echo "<div class='{$dateClass}'>" . $currentDate->format('j') . "</div>";
}
echo "<div class='tasks' style='margin-top: 20px;'>";
foreach ($tasks as $task) {
$dueDate = new DateTime($task['due_date'], new DateTimeZone('UTC'));
$dueDate->setTimezone($userTimezone);
if ($dueDate->format('Y-m-d') === $currentDate->format('Y-m-d')) {
$interval = $nowInUserTimezone->diff($dueDate);
$minutesToDue = $interval->days * 1440 + $interval->h * 60 + $interval->i;
$taskClass = '';
if ($task['completed']) {
$taskClass .= 'task-completed';
} elseif ($interval->invert == 1) {
$taskClass .= 'task-past-due';
} elseif ($minutesToDue <= $urgencyCritical) {
$taskClass .= 'task-urgency-critical';
} elseif ($minutesToDue <= $urgencyGreen) {
$taskClass .= 'task-urgency-soon';
} else {
$taskClass .= 'task-urgency-green';
}
echo "<div class='{$taskClass}'><a href='edit_task.php?id={$task['id']}' class='task-name'>" . htmlspecialchars($task['summary']) . "</a></div>";
}
}
echo "</div>";
echo "</div>";
echo "</td>";
$currentDate->modify('+1 day');
}
echo "</tr>";
}
?>
</tbody>
</table>
</div>
<a href="main.php" class="btn">Tasks</a>
</div>
</body>
</html>