// Grab the time of the last sensor read
$time_now = `date +"%Y-%m-%d %H:%M:%S"`;
$time_last_t = `tail -n 1 /var/www/mycodo/log/sensor-t-tmp.log`;
if ($time_last_t != '') {
$time_explode = explode(" ", $time_last_t);
$time_last_t = $time_explode[0] . '-' . $time_explode[1] . '-' . $time_explode[2] . ' ' . $time_explode[3] . ':' . $time_explode[4] . ':' . $time_explode[5];
}
$time_last_ht = `tail -n 1 /var/www/mycodo/log/sensor-ht-tmp.log`;
if ($time_last_ht != '') {
$time_explode = explode(" ", $time_last_ht);
$time_last_ht = $time_explode[0] . '-' . $time_explode[1] . '-' . $time_explode[2] . ' ' . $time_explode[3] . ':' . $time_explode[4] . ':' . $time_explode[5];
}
$time_last_co2 = `tail -n 1 /var/www/mycodo/log/sensor-co2-tmp.log`;
if ($time_last_co2 != '') {
$time_explode = explode(" ", $time_last_co2);
$time_last_co2 = $time_explode[0] . '-' . $time_explode[1] . '-' . $time_explode[2] . ' ' . $time_explode[3] . ':' . $time_explode[4] . ':' . $time_explode[5];
}
$time_last = max($time_last_t, $time_last_ht, $time_last_co2);
// Request to generate a graph
if (isset($_POST['Graph'])) {
if (!isset($_POST['graph_type'])) {
setcookie('graph_type', 'separate', time() + 86400 * 10, "/");
$_COOKIE['graph_type'] = 'separate';
} else {
setcookie('graph_type', $_POST['graph_type'], time() + 86400 * 10, "/");
$_COOKIE['graph_type'] = $_POST['graph_type'];
}
setcookie('graph_span', $_POST['graph_time_span'], time() + 86400 * 10, "/");
$_COOKIE['graph_span'] = $_POST['graph_time_span'];
set_new_graph_id();
}
function get_graph_cookie($name)
{
switch ($name) {
case 'id':
// Check if cookie exists with properly-formatted graph ID
if (isset($_COOKIE['graph_id'])) {
if (ctype_alnum($_COOKIE['graph_id']) && !isset($_GET['Refresh'])) {
// Generate graph if auto-refresh is on
return $_COOKIE['graph_id'];
}
}
return set_new_graph_id();
case 'type':
// Check if cookie exists for graph type
if (isset($_COOKIE['graph_type'])) {
if ($_COOKIE['graph_type'] == 'combined' || $_COOKIE['graph_type'] == 'separate') {
return $_COOKIE['graph_type'];
}
}
setcookie('graph_type', 'default', time() + 86400 * 10, "/");
$_COOKIE['graph_type'] = 'default';
return $_COOKIE['graph_type'];
case 'span':
// Check if cookie exists for graph time span
if (isset($_COOKIE['graph_span'])) {
if ($_COOKIE['graph_span'] == '1h' || $_COOKIE['graph_span'] == '3h' || $_COOKIE['graph_span'] == '6h' || $_COOKIE['graph_span'] == '12h' || $_COOKIE['graph_span'] == '1d' || $_COOKIE['graph_span'] == '3d' || $_COOKIE['graph_span'] == '1w' || $_COOKIE['graph_span'] == '2w' || $_COOKIE['graph_span'] == '1m' || $_COOKIE['graph_span'] == '3m' || $_COOKIE['graph_span'] == '6m') {
return $_COOKIE['graph_span'];
}
}
setcookie('graph_span', 'default', time() + 86400 * 10, "/");
$_COOKIE['graph_span'] = 'default';
return $_COOKIE['graph_span'];
}
}
