/**
* Retrieves the latest usage statistics from the database
*/
public function getDataCoverage()
{
include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerLayers.php';
include_once HV_ROOT_DIR . '/../src/Helper/HelioviewerEvents.php';
// Data Layers
if (!empty($this->_options['imageLayers'])) {
$layers = new Helper_HelioviewerLayers($this->_options['imageLayers']);
} else {
$layers = null;
}
// Events Layers
if (!empty($this->_options['eventLayers'])) {
$events = new Helper_HelioviewerEvents($this->_params['eventLayers']);
} else {
$events = null;
}
$start = @$this->_options['startDate'];
if ($start && !preg_match('/^[0-9]+$/', $start)) {
die("Invalid start parameter: {$start}");
}
$end = @$this->_options['endDate'];
if ($end && !preg_match('/^[0-9]+$/', $end)) {
die("Invalid end parameter: {$end}");
}
$current = @$this->_options['currentDate'];
if ($current && !preg_match('/^[0-9]+$/', $current)) {
die("Invalid end parameter: {$current}");
}
if (!$start) {
$start = 0;
}
if (!$end) {
$end = time() * 1000;
}
if (!$current) {
$current = 0;
}
// set some utility variables
$range = $end - $start;
$startDate = gmstrftime('%Y-%m-%d %H:%M:%S', $start / 1000) + 60;
$endDate = gmstrftime('%Y-%m-%d %H:%M:%S', $end / 1000) - 60;
// find the right range
if ($range < 105 * 60 * 1000) {
$resolution = 'm';
// 12 hours range loads hourly data
} elseif ($range < 12 * 3600 * 1000) {
$resolution = '5m';
// one month range loads hourly data
} elseif ($range < 2 * 24 * 3600 * 1000) {
$resolution = '15m';
// one month range loads hourly data
} elseif ($range < 10 * 24 * 3600 * 1000) {
$resolution = 'h';
// one year range loads daily data
} elseif ($range < 6 * 31 * 24 * 3600 * 1000) {
$resolution = 'D';
// half year range loads daily data
} elseif ($range < 15 * 31 * 24 * 3600 * 1000) {
$resolution = 'W';
// greater range loads monthly data
} else {
$resolution = 'M';
}
//$resolution = 'm';
$dateEnd = new DateTime();
if (isset($this->_options['endDate'])) {
$dateEnd->setTimestamp($this->_options['endDate'] / 1000);
} else {
$dateEnd->setTimestamp($end / 1000);
}
$dateStart = new DateTime();
if (isset($this->_options['startDate'])) {
$dateStart->setTimestamp($this->_options['startDate'] / 1000);
} else {
$dateStart->setTimestamp($start / 1000);
}
$dateCurrent = new DateTime();
if (isset($this->_options['currentDate'])) {
$dateCurrent->setTimestamp($this->_options['currentDate']);
} else {
$dateCurrent->setTimestamp($current);
}
include_once HV_ROOT_DIR . '/../src/Database/Statistics.php';
$statistics = new Database_Statistics();
if ($layers != null) {
$this->_printJSON($statistics->getDataCoverage($layers, $resolution, $dateStart, $dateEnd));
} else {
if ($events != null) {
if ($range < 24 * 60 * 60 * 1000) {
$resolution = 'm';
}
if ($resolution == '5m' || $resolution == '15m') {
$resolution = '30m';
}
$this->_printJSON($statistics->getDataCoverageEvents($events, $resolution, $dateStart, $dateEnd, $dateCurrent));
}
}
}