/**
* Utility function loop through existing Snapshot items and make sure they are
* setup in the WP Cron facility. Also, in case there are some left over cron
* entries a secondary process will loop through the WP Cron entries to make
* the entries related to Snapshot are valid and current.
*
* @since 1.0.2
* @see
*
* @param none
*
* @return none
*/
function snapshot_scheduler()
{
$HAVE_SCHEDULED_EVENTS = false;
// A two-step process.
// 1. First any items needing to be schduled we make sure they are added.
if (isset($this->config_data['items']) && count($this->config_data['items'])) {
$scheds = (array) wp_get_schedules();
foreach ($this->config_data['items'] as $key_slug => $item) {
if (isset($item['interval']) && $item['interval'] != "") {
if (isset($scheds[$item['interval']])) {
$next_timestamp = wp_next_scheduled($this->_settings['backup_cron_hook'], array(intval($key_slug)));
if (!$next_timestamp) {
//$interval_offset = $scheds[$item['interval']]['interval'];
//$offset_timestamp = time() - $interval_offset;
//wp_schedule_event($offset_timestamp, $item['interval'], $this->_settings['backup_cron_hook'], array(intval($key_slug)) );
wp_schedule_event(time() + Snapshot_Helper_Utility::calculate_interval_offset_time($item['interval'], $item['interval-offset']), $item['interval'], $this->_settings['backup_cron_hook'], array(intval($key_slug)));
$HAVE_SCHEDULED_EVENTS = true;
}
}
}
}
}
// 2. Go through the WP cron entries. Any snapshot items not matching to existing items or items without proper intervals unschedule.
$crons = _get_cron_array();
if ($crons) {
foreach ($crons as $cron_time => $cron_set) {
foreach ($cron_set as $cron_callback_function => $cron_item) {
if ($cron_callback_function == "snapshot_backup_cron") {
foreach ($cron_item as $cron_key => $cron_details) {
if (isset($cron_details['args'][0])) {
$item_key = intval($cron_details['args'][0]);
if (!isset($this->config_data['items'][$item_key])) {
$timestamp = wp_next_scheduled($this->_settings['backup_cron_hook'], array(intval($item_key)));
if ($timestamp) {
wp_unschedule_event($timestamp, $this->_settings['backup_cron_hook'], array(intval($item_key)));
} else {
wp_unschedule_event($cron_time, $this->_settings['backup_cron_hook'], array(intval($item_key)));
}
}
}
}
} else {
if ($cron_callback_function == $this->_settings['remote_file_cron_hook']) {
foreach ($cron_item as $cron_key => $cron_details) {
if ($cron_details['schedule'] !== $this->_settings['remote_file_cron_interval']) {
$timestamp = wp_next_scheduled($this->_settings['remote_file_cron_hook']);
wp_unschedule_event($timestamp, $this->_settings['remote_file_cron_hook']);
}
}
}
}
}
}
}
// We only need the remote file cron if we have destinations defined
if (isset($this->config_data['destinations']) && count($this->config_data['destinations'])) {
$timestamp = wp_next_scheduled($this->_settings['remote_file_cron_hook']);
if (!$timestamp) {
wp_schedule_event(time(), $this->_settings['remote_file_cron_interval'], $this->_settings['remote_file_cron_hook']);
$HAVE_SCHEDULED_EVENTS = true;
}
}
if ($HAVE_SCHEDULED_EVENTS == true) {
wp_remote_post(get_option('siteurl') . '/wp-cron.php', array('timeout' => 3, 'blocking' => false, 'sslverify' => false, 'body' => array('nonce' => wp_create_nonce('WPMUDEVSnapshot'), 'type' => 'start'), 'user-agent' => 'WPMUDEVSnapshot'));
}
}
