forked from mirrors/easyappointments
108 lines
No EOL
3.6 KiB
PHP
108 lines
No EOL
3.6 KiB
PHP
<?php
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/**
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* [AJAX] Get the available appointment hours for the given date.
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*
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* This method answers to an AJAX request. It calculates the
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* available hours for thegiven service, provider and date.
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*
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* @param numeric $_POST['provider_id'] The selected provider's
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* record id.
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* @param string $_POST['selected_date'] The selected date of
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* which the available hours we want to see.
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* @param numeric $_POST['service_duration'] The selected service
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* duration in minutes.
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* @param string $_POST['manage_mode'] Contains either 'true' or
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* 'false' and determines the if current user is managing an already
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* booked appointment or not.
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* @return Returns a json object with the available hours.
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*/
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public function ajax_get_available_hours() {
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$this->load->model('providers_model');
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$this->load->model('appointments_model');
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$this->load->model('settings_model');
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try {
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// If manage mode is TRUE then the following we should not
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// consider the selected appointment when calculating the
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// available time periods of the provider.
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$exclude_appointments = ($_POST['manage_mode'] === 'true')
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? array($_POST['appointment_id'])
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: array();
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$empty_periods = $this->get_provider_available_time_periods(
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$_POST['provider_id'], $_POST['selected_date'],
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$exclude_appointments);
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// Calculate the available appointment hours for the given
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// date. The empty spaces are broken down to 15 min and if
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// the service fit in each quarter then a new available hour
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// is added to the "$available_hours" array.
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$available_hours = array();
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foreach ($empty_periods as $period) {
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$start_hour = new DateTime($_POST['selected_date']
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. ' ' . $period['start']);
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$end_hour = new DateTime($_POST['selected_date']
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. ' ' . $period['end']);
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$minutes = $start_hour->format('i');
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if ($minutes % 15 != 0) {
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// Change the start hour of the current space in
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// order to be on of the following: 00, 15, 30, 45.
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if ($minutes < 15) {
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$start_hour->setTime($start_hour->format('H'), 15);
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} else if ($minutes < 30) {
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$start_hour->setTime($start_hour->format('H'), 30);
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} else if ($minutes < 45) {
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$start_hour->setTime($start_hour->format('H'), 45);
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} else {
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$start_hour->setTime($start_hour->format('H') + 1, 00);
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}
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}
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$current_hour = $start_hour;
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$diff = $current_hour->diff($end_hour);
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while (($diff->h * 60 + $diff->i)
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> intval($_POST['service_duration'])) {
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$available_hours[] = $current_hour->format('H:i');
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$current_hour->add(new DateInterval("PT15M"));
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$diff = $current_hour->diff($end_hour);
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}
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}
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// If the selected date is today, remove past hours. It is
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// important include the timeout before booking that is set
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// in the backoffice the system. Normally we might want the
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// customer to book an appointment that is at least half or
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// one hour from now. The setting is stored in minutes.
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if (date('m/d/Y', strtotime($_POST['selected_date']))
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== date('m/d/Y')) {
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if ($_POST['manage_mode'] === 'true') {
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$book_advance_timeout = 0;
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} else {
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$book_advance_timeout =
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$this->settings_model->get_setting('book_advance_timeout');
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}
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foreach($available_hours as $index => $value) {
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$available_hour = strtotime($value);
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$current_hour = strtotime('+' . $book_advance_timeout
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. ' minutes', strtotime('now'));
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if ($available_hour <= $current_hour) {
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unset($available_hours[$index]);
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}
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}
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}
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$available_hours = array_values($available_hours);
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echo json_encode($available_hours);
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} catch(Exception $exc) {
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echo json_encode(array(
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'exceptions' => array(exceptionToJavaScript($exc))
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));
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}
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} |