vikbooking / admin / helpers / widgets / check_availability.php

check_availability.php in VikBooking Hotel Booking Engine & PMS 1.6.5, at admin/helpers/widgets/check_availability.php

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1	<?php
2	/**
3	* @package VikBooking
4	* @subpackage com_vikbooking
5	* @author Alessio Gaggii - e4j - Extensionsforjoomla.com
6	* @copyright Copyright (C) 2018 e4j - Extensionsforjoomla.com. All rights reserved.
7	* @license GNU General Public License version 2 or later; see LICENSE
8	* @link https://vikwp.com
9	*/
10
11	defined('ABSPATH') or die('No script kiddies please!');
12
13	/**
14	* Class handler for admin widget "check availability".
15	*
16	* @since 1.15.0 (J) - 1.5.0 (WP)
17	*/
18	class VikBookingAdminWidgetCheckAvailability extends VikBookingAdminWidget
19	{
20	/**
21	* The instance counter of this widget. Since we do not load individual parameters
22	* for each widget's instance, we use a static counter to determine its settings.
23	*
24	* @var int
25	*/
26	protected static $instance_counter = -1;
27
28	/**
29	* Default number of results per page.
30	*
31	* @var int
32	*/
33	protected $res_per_page = 3;
34
35	/**
36	* Maximum alternative dates to be displayed.
37	*
38	* @var int
39	*/
40	protected $max_alternative_dates = 6;
41
42	/**
43	* Maximum alternative parties to be displayed.
44	*
45	* @var int
46	*/
47	protected $max_alternative_parties = 8;
48
49	/**
50	* Class constructor will define the widget name and identifier.
51	*/
52	public function __construct()
53	{
54	// call parent constructor
55	parent::__construct();
56
57	$this->widgetName = JText::translate('VBO_W_CHECKAV_TITLE');
58	$this->widgetDescr = JText::translate('VBO_W_CHECKAV_DESCR');
59	$this->widgetId = basename(__FILE__, '.php');
60
61	// define widget and icon and style name
62	$this->widgetIcon = '<i class="' . VikBookingIcons::i('calculator') . '"></i>';
63	$this->widgetStyleName = 'blue';
64	}
65
66	/**
67	* Custom method for this widget only to load the rates flow records.
68	* The method is called by the admin controller through an AJAX request.
69	* The visibility should be public, it should not exit the process, and
70	* any content sent to output will be returned to the AJAX response.
71	* In this case we return an array because this method requires "return":1.
72	*
73	* It's the actual rendering of the widget which also allows navigation.
74	*/
75	public function loadRoomRates()
76	{
77	$offset = VikRequest::getInt('offset', 0, 'request');
78	$length = VikRequest::getInt('length', $this->res_per_page, 'request');
79	$wrapper = VikRequest::getString('wrapper', '', 'request');
80
81	$checkin_date = VikRequest::getString('checkin_date', '', 'request');
82	$num_nights = VikRequest::getInt('num_nights', 1, 'request');
83	$num_adults = VikRequest::getInt('num_adults', 2, 'request');
84	$num_children = VikRequest::getInt('num_children', 0, 'request');
85
86	// optional room IDs and guests array to consider
87	$room_ids = [];
88	$arr_adults = [];
89	$arr_children = [];
90
91	// multitask can inject a booking id
92	$bid = VikRequest::getInt('bid', 0, 'request');
93	if (!empty($bid)) {
94	// get proper loading values for this booking
95	list($b_checkin_date, $b_num_nights, $b_num_adults, $b_num_children, $room_ids) = $this->getBookingLoadValues($bid);
96	// only check the calculated booking checkin date to determine if loading values was successful
97	if (!empty($b_checkin_date)) {
98	// overwrite default values
99	$checkin_date = $b_checkin_date;
100	$num_nights = $b_num_nights;
101	if (is_array($b_num_adults)) {
102	// multiple rooms involved
103	$num_adults = array_sum($b_num_adults);
104	$num_children = array_sum($b_num_children);
105	$arr_adults = $b_num_adults;
106	$arr_children = $b_num_children;
107	} else {
108	// single room involved
109	$num_adults = $b_num_adults;
110	$num_children = $b_num_children;
111	}
112	}
113	}
114
115	if (empty($checkin_date)) {
116	// default to today's date
117	$checkin_date = date('Y-m-d');
118	}
119	if ($num_nights < 1) {
120	// minimum number of nights is 1
121	$num_nights = 1;
122	}
123
124	// convert date to timestamp to support custom date formats
125	$checkin_ts = VikBooking::getDateTimestamp($checkin_date);
126	$checkin_info = getdate($checkin_ts);
127	$checkout_ts = mktime(0, 0, 0, $checkin_info['mon'], ($checkin_info['mday'] + $num_nights), $checkin_info['year']);
128	$checkout_info = getdate($checkout_ts);
129	// build final dates
130	$checkin_date = date('Y-m-d', $checkin_ts);
131	$checkout_date = date('Y-m-d', $checkout_ts);
132
133	// we make use of the rates flow report helper class
134	$report = VikBooking::getReportInstance('rates_flow');
135	if (!$report) {
136	// display nothing
137	return;
138	}
139
140	// date formats and separator
141	$df = $report->getDateFormat();
142	$dtpicker_df = $report->getDateFormat('jui');
143	$date_sep = VikBooking::getDateSeparator();
144
145	// currency symbol
146	$currency = VikBooking::getCurrencySymb();
147
148	// invoke availability helper class
149	$av_helper = VikBooking::getAvailabilityInstance();
150
151	// set stay values
152	$av_helper->setStayDates($checkin_date, $checkout_date);
153	if (count($arr_adults) > 1) {
154	// multiple rooms involved
155	foreach ($arr_adults as $gkey => $radults) {
156	$av_helper->setRoomParty($radults, (isset($arr_children[$gkey]) ? $arr_children[$gkey] : 0));
157	}
158	} else {
159	// single room involved
160	$av_helper->setRoomParty($num_adults, $num_children);
161	}
162
163	if ($room_ids) {
164	$av_helper->setRoomIds($room_ids);
165	}
166
167	// load available room rates (all records, before pagination that will be applied later)
168	$room_rates = $av_helper->getRates();
169
170	// load rooms and rate plans
171	$all_rooms = $av_helper->loadRooms();
172	$all_rplans = $av_helper->loadRatePlans();
173
174	// check if availability errors occurred
175	$has_av_error = strlen($av_helper->getError());
176	$av_error_code = $av_helper->getErrorCode();
177
178	// count total records
179	$tot_records = is_array($room_rates) && !$has_av_error ? count($room_rates) : 0;
180
181	// check if a next page can be available
182	$has_next_page = (($offset + $length) < $tot_records) ? 1 : 0;
183
184	// splice the array returned to support pagination
185	if ($tot_records > $length) {
186	$split_room_rates = array();
187	$index_offset = 0;
188	foreach ($room_rates as $rid => $rates) {
189	if ($index_offset >= $offset) {
190	$split_room_rates[$rid] = $rates;
191	}
192	if (count($split_room_rates) >= $length) {
193	break;
194	}
195	$index_offset++;
196	}
197	$room_rates = $split_room_rates;
198	unset($split_room_rates);
199	}
200
201	// list of eligible and available room IDs
202	$eligible_rids = [];
203
204	// start output buffering
205	ob_start();
206
207	// display the information about the dates and room party
208	$party_info_parts = array();
209	// stay dates information
210	$checkin_str = VikBooking::sayWeekDay($checkin_info['wday'], true) . ', ' . date(str_replace('/', $date_sep, $df), $checkin_ts);
211	$checkout_str = VikBooking::sayWeekDay($checkout_info['wday'], true) . ', ' . date(str_replace('/', $date_sep, $df), $checkout_ts);
212	$party_info_parts[] = $checkin_str . ' - ' . $checkout_str;
213	// nights information
214	$nights_lbl = $num_nights > 1 ? JText::translate('VBDAYS') : JText::translate('VBDAY');
215	$party_info_parts[] = $num_nights . ' ' . $nights_lbl;
216	// adults information
217	$adults_lbl = $num_adults === 1 ? JText::translate('VBMAILADULT') : JText::translate('VBEDITORDERADULTS');
218	$party_info_parts[] = $num_adults . ' ' . $adults_lbl;
219	// children information
220	$children_lbl = $num_children === 1 ? JText::translate('VBMAILCHILD') : JText::translate('VBEDITORDERCHILDREN');
221	if ($num_children > 0) {
222	$party_info_parts[] = $num_children . ' ' . $children_lbl;
223	}
224	?>
225	<div class="vbo-widget-checkav-result-party">
226	<p><?php echo implode(', ', $party_info_parts); ?></p>
227	</div>
228	<?php
229
230	// check if there is availability
231	if (!is_array($room_rates) \|\| !$room_rates \|\| $has_av_error) {
232	$explain_err = $av_helper->explainErrorCode();
233	$say_error = !empty($explain_err) ? $explain_err : $av_helper->getError();
234	$say_error = empty($say_error) ? JText::translate('VBOVERVIEWLEGRED') : $say_error;
235	?>
236	<p class="err"><?php echo $say_error; ?></p>
237	<?php
238	} else {
239	// parse room rates
240	foreach ($room_rates as $rid => $rates) {
241	if (!isset($all_rooms[$rid])) {
242	// this is to prevent reserved keys from being displayed
243	continue;
244	}
245	// push room ID as eligible and available
246	$eligible_rids[] = $rid;
247	?>
248	<div class="vbo-widget-checkav-result-room-rates">
249	<div class="vbo-widget-checkav-result-room-name">
250	<span><?php echo $all_rooms[$rid]['name']; ?></span>
251	</div>
252	<div class="vbo-widget-checkav-result-rates-list">
253	<?php
254	foreach ($rates as $rplan) {
255	$net_price = $rplan['cost'] - $rplan['taxes'];
256	$js_book_args = "'$wrapper', '{$rid}', '{$checkin_date}', '{$checkout_date}', '{$num_adults}', '{$num_children}', '{$rplan['idprice']}'";
257	?>
258	<div class="vbo-widget-checkav-result-room-rate">
259	<div class="vbo-widget-checkav-result-rate-name">
260	<span><?php echo isset($all_rplans[$rplan['idprice']]) ? $all_rplans[$rplan['idprice']]['name'] : '?'; ?></span>
261	</div>
262	<div class="vbo-widget-checkav-result-rate-prices">
263	<?php
264	if ($net_price != $rplan['cost']) {
265	// taxes are greater than zero
266	?>
267	<span class="vbo-widget-checkav-result-rate-price vbo-widget-checkav-result-rate-net">
268	<span><?php echo JText::translate('VBCALCRATESNET'); ?></span>
269	<?php echo $currency . ' ' . VikBooking::numberFormat($net_price); ?>
270	</span>
271	<span class="vbo-widget-checkav-result-rate-price vbo-widget-checkav-result-rate-tax">
272	<span><?php echo JText::translate('VBCALCRATESTAX'); ?></span>
273	<?php echo $currency . ' ' . VikBooking::numberFormat($rplan['taxes']); ?>
274	</span>
275	<?php
276	}
277	?>
278	<span class="vbo-widget-checkav-result-rate-price vbo-widget-checkav-result-rate-total">
279	<span><?php echo JText::translate('VBCALCRATESTOT'); ?></span>
280	<?php echo $currency . ' ' . VikBooking::numberFormat($rplan['cost']); ?>
281	</span>
282	<span class="vbo-widget-checkav-result-rate-price vbo-widget-checkav-result-rate-booknow">
283	<button type="button" class="btn btn-primary" onclick="vboWidgetCheckAvailabilityBook(<?php echo $js_book_args; ?>);"><?php echo JText::translate('VBO_BOOKNOW'); ?></button>
284	</span>
285	</div>
286	</div>
287	<?php
288	}
289	?>
290	</div>
291	</div>
292	<?php
293	}
294
295	// append navigation
296	?>
297	<div class="vbo-widget-commands vbo-widget-commands-right">
298	<div class="vbo-widget-commands-main">
299	<?php
300	if ($offset > 0) {
301	// show backward navigation button
302	?>
303	<div class="vbo-widget-command-chevron vbo-widget-command-prev">
304	<span class="vbo-widget-command-chevron-prev" onclick="vboWidgetCheckAvailabilityNavigate('<?php echo $wrapper; ?>', -1);"><?php VikBookingIcons::e('chevron-left'); ?></span>
305	</div>
306	<?php
307	}
308	if ($has_next_page) {
309	// show forward navigation button
310	?>
311	<div class="vbo-widget-command-chevron vbo-widget-command-next">
312	<span class="vbo-widget-command-chevron-next" onclick="vboWidgetCheckAvailabilityNavigate('<?php echo $wrapper; ?>', 1);"><?php VikBookingIcons::e('chevron-right'); ?></span>
313	</div>
314	<?php
315	}
316	?>
317	</div>
318	</div>
319	<?php
320	}
321
322	// default pool of suggestions
323	$alternative_dates = [];
324	$alternative_parties = [];
325	$split_stay_sols = [];
326
327	if (!is_array($room_rates) \|\| !$room_rates \|\| $has_av_error) {
328	// try to get the suggestions when no availability
329	list($alternative_dates, $alternative_parties, $split_stay_sols) = $av_helper->findSuggestions();
330	} elseif ($eligible_rids) {
331	/**
332	* We did return some available rooms, but we still want to calculate if some
333	* split-stay solutions are also available for some rooms that were left unsold.
334	*
335	* @since 1.16.3 (J) - 1.6.3 (WP)
336	*/
337	$parsable_rids = array_diff(array_keys($av_helper->filterPublishedRooms()), $eligible_rids);
338	if ($parsable_rids) {
339	// try to suggest split stay solutions by using the room IDs that were not available
340	$split_stay_sols = $av_helper->findSplitStays($parsable_rids);
341	}
342	}
343
344	// parse booking split stays
345	if ($split_stay_sols) {
346	// we've got booking split stays to suggest
347	?>
348	<p class="info"><?php VikBookingIcons::e('random'); ?> <?php echo JText::translate('VBO_SPLIT_STAYS'); ?></p>
349	<div class="vbo-widget-checkav-result-splitstays-wrap">
350	<?php
351	foreach ($split_stay_sols as $split_stay_sol) {
352	?>
353	<div class="vbo-widget-checkav-splitstay-rooms">
354	<div class="vbo-widget-checkav-splitstay-rooms-inner">
355	<?php
356	// start args for booking this split stay solution
357	$first_rid = $split_stay_sol[0]['idroom'];
358	$split_stay_values = [
359	'checkin' => $checkin_date,
360	'checkout' => $checkout_date,
361	'split_stay' => [],
362	];
363	// parse rooms for the split stay
364	foreach ($split_stay_sol as $split_k => $split_stay_room) {
365	// parse stay dates into DateTime objects
366	$checkin_dt_obj = new JDate($split_stay_room['checkin']);
367	$checkout_dt_obj = new JDate($split_stay_room['checkout']);
368	// push split stay data for booking
369	$split_stay_values['split_stay'][] = [
370	'idroom' => $split_stay_room['idroom'],
371	'checkin' => $split_stay_room['checkin'],
372	'checkout' => $split_stay_room['checkout'],
373	'nights' => $split_stay_room['nights'],
374	];
375	?>
376	<div class="vbo-widget-checkav-splitstay-room">
377	<div class="vbo-widget-checkav-result-room-name">
378	<span><?php VikBookingIcons::e(($split_k > 0 ? 'random' : 'arrow-right')); ?> <?php echo $split_stay_room['room_name']; ?></span>
379	</div>
380	<div class="vbo-widget-checkav-result-altdates-info">
381	<div class="vbo-widget-checkav-result-alt-date">
382	<span class="vbo-widget-checkav-result-split-nights"><?php VikBookingIcons::e('moon'); ?> <?php echo $split_stay_room['nights']; ?> <?php echo $split_stay_room['nights'] > 1 ? JText::translate('VBDAYS') : JText::translate('VBDAY'); ?></span>
383	<span class="vbo-widget-checkav-result-alt-date-in"><?php VikBookingIcons::e('plane-arrival'); ?> <?php echo $checkin_dt_obj->format('D, d M Y', true); ?></span>
384	<span class="vbo-widget-checkav-result-alt-date-out"><?php VikBookingIcons::e('plane-departure'); ?> <?php echo $checkout_dt_obj->format('D, d M Y', true); ?></span>
385	</div>
386	</div>
387	</div>
388	<?php
389	}
390	// finalize args for booking this split stay
391	$split_stay_qstring = http_build_query($split_stay_values);
392	$js_book_args = "'{$first_rid}', '{$num_adults}', '{$num_children}', '{$split_stay_qstring}'";
393	?>
394	</div>
395	<div class="vbo-widget-checkav-splitstay-rooms-book">
396	<button type="button" class="btn btn-primary" onclick="vboWidgetCheckAvailabilityBookSplitStay(<?php echo $js_book_args; ?>);"><?php echo JText::translate('VBO_BOOKNOW'); ?></button>
397	</div>
398	</div>
399	<?php
400	}
401	?>
402	</div>
403	<?php
404	}
405
406	// parse alrernative dates (if any)
407	if ($alternative_dates) {
408	// we've got some alternative dates to suggest for some rooms
409	?>
410	<p class="info"><?php echo JText::translate('VBO_ALT_STAY_DATES'); ?></p>
411	<div class="vbo-widget-checkav-result-altdates-wrap">
412	<?php
413	$alt_displayed = 0;
414	foreach ($alternative_dates as $arrive_dt => $alt_rooms) {
415	$alt_displayed++;
416	foreach ($alt_rooms as $rid => $alt_room) {
417	if (empty($alt_room['days_av_left'])) {
418	continue;
419	}
420	$sugg_checkin_dt = null;
421	$sugg_checkout_dt = null;
422	foreach ($alt_room['days_av_left'] as $dayk => $uleft) {
423	if (empty($sugg_checkin_dt)) {
424	// grab the first date
425	$sugg_checkin_dt = $dayk;
426	}
427	// always overwrite until last date
428	$sugg_checkout_dt = $dayk;
429	}
430	// increase check-out date by one day (day after last night of stay)
431	$sugg_out_info = getdate(strtotime($sugg_checkout_dt));
432	$sugg_checkout_dt = date('Y-m-d', mktime(0, 0, 0, $sugg_out_info['mon'], ($sugg_out_info['mday'] + 1), $sugg_out_info['year']));
433	// parse stay dates into DateTime objects
434	$checkin_dt_obj = new JDate($sugg_checkin_dt);
435	$checkout_dt_obj = new JDate($sugg_checkout_dt);
436	// count total nights of stay
437	$sug_tot_nights = count($alt_room['days_av_left']);
438	// format suggested check-in date for datepicker
439	$cal_checkin_dt = date($df, strtotime($sugg_checkin_dt));
440	// js arguments
441	$js_pick_args = "'$wrapper', '{$rid}', '{$cal_checkin_dt}', '{$sug_tot_nights}', '{$num_adults}', '{$num_children}'";
442	?>
443	<div class="vbo-widget-checkav-result-room-rates vbo-widget-checkav-result-altdates">
444	<div class="vbo-widget-checkav-result-room-name">
445	<span><?php echo $alt_room['name']; ?></span>
446	</div>
447	<div class="vbo-widget-checkav-result-altdates-info">
448	<div class="vbo-widget-checkav-result-alt-date">
449	<span class="vbo-widget-checkav-result-alt-date-in"><?php VikBookingIcons::e('plane-arrival'); ?> <?php echo $checkin_dt_obj->format('D, d M Y', true); ?></span>
450	<span class="vbo-widget-checkav-result-alt-date-out"><?php VikBookingIcons::e('plane-departure'); ?> <?php echo $checkout_dt_obj->format('D, d M Y', true); ?></span>
451	</div>
452	<div class="vbo-widget-checkav-result-alt-choose">
453	<button type="button" class="btn btn-primary" onclick="vboWidgetCheckAvailabilityPickRoom(<?php echo $js_pick_args; ?>);"><?php echo JText::translate('VBO_SELECT'); ?></button>
454	</div>
455	</div>
456	</div>
457	<?php
458	}
459	// check limit of alternative dates
460	if ($alt_displayed >= $this->max_alternative_dates) {
461	break;
462	}
463	}
464	?>
465	</div>
466	<?php
467	}
468
469	// parse alrernative parties (if any)
470	if ($alternative_parties) {
471	// we've got some alternative combinations of rooms to suggest to fit the party
472	?>
473	<p class="info"><?php echo JText::translate('VBO_ALT_ROOM_PARTIES'); ?></p>
474	<div class="vbo-widget-checkav-result-altparties-wrap">
475	<?php
476	$alt_displayed = 0;
477	foreach ($alternative_parties as $arrive_dt => $alt_parties) {
478	$alt_displayed++;
479	$alt_dates_displayed = false;
480	?>
481	<div class="vbo-widget-checkav-result-room-rates vbo-widget-checkav-result-altparty">
482	<?php
483	foreach ($alt_parties as $alt_party) {
484	if (empty($alt_party['days_av_left']) \|\| empty($alt_party['guests_allocation'])) {
485	continue;
486	}
487	// room ID
488	$rid = $alt_party['id'];
489	// count total nights of stay
490	$sug_tot_nights = count($alt_party['days_av_left']);
491	// party info
492	$party_info_parts = array();
493	// adults information
494	$adults_lbl = $alt_party['guests_allocation']['adults'] == 1 ? JText::translate('VBMAILADULT') : JText::translate('VBEDITORDERADULTS');
495	$party_info_parts[] = $alt_party['guests_allocation']['adults'] . ' ' . $adults_lbl;
496	// children information
497	$children_lbl = isset($alt_party['guests_allocation']['children']) && $alt_party['guests_allocation']['children'] == 1 ? JText::translate('VBMAILCHILD') : JText::translate('VBEDITORDERCHILDREN');
498	if (!empty($alt_party['guests_allocation']['children'])) {
499	$party_info_parts[] = $alt_party['guests_allocation']['children'] . ' ' . $children_lbl;
500	}
501	if (!$alt_dates_displayed) {
502	// display the stay dates once per alternative party
503	$alt_dates_displayed = true;
504	// calculate suggested stay dates
505	$sugg_checkin_dt = null;
506	$sugg_checkout_dt = null;
507	foreach ($alt_party['days_av_left'] as $dayk => $uleft) {
508	if (empty($sugg_checkin_dt)) {
509	// grab the first date
510	$sugg_checkin_dt = $dayk;
511	}
512	// always overwrite until last date
513	$sugg_checkout_dt = $dayk;
514	}
515	// increase check-out date by one day (day after last night of stay)
516	$sugg_out_info = getdate(strtotime($sugg_checkout_dt));
517	$sugg_checkout_dt = date('Y-m-d', mktime(0, 0, 0, $sugg_out_info['mon'], ($sugg_out_info['mday'] + 1), $sugg_out_info['year']));
518	// parse stay dates into DateTime objects
519	$checkin_dt_obj = new JDate($sugg_checkin_dt);
520	$checkout_dt_obj = new JDate($sugg_checkout_dt);
521	?>
522	<div class="vbo-widget-checkav-result-altparty-dates">
523	<div class="vbo-widget-checkav-result-altparty-stay">
524	<span class="vbo-widget-checkav-result-alt-date-in"><?php VikBookingIcons::e('plane-arrival'); ?> <?php echo $checkin_dt_obj->format('D, d M Y', true); ?></span>
525	<span class="vbo-widget-checkav-result-alt-date-out"><?php VikBookingIcons::e('plane-departure'); ?> <?php echo $checkout_dt_obj->format('D, d M Y', true); ?></span>
526	</div>
527	</div>
528	<?php
529	}
530	?>
531	<div class="vbo-widget-checkav-result-altparty-room">
532	<div class="vbo-widget-checkav-result-room-name">
533	<span><?php echo $alt_party['name']; ?></span>
534	</div>
535	<div class="vbo-widget-checkav-result-alt-guests-rparty">
536	<span><?php VikBookingIcons::e('users'); ?> <?php echo implode(', ', $party_info_parts); ?></span>
537	</div>
538	</div>
539	<?php
540	}
541	?>
542	</div>
543	<?php
544	// check limit of alternative parties
545	if ($alt_displayed >= $this->max_alternative_parties) {
546	break;
547	}
548	}
549	?>
550	</div>
551	<?php
552	}
553
554	// get the HTML buffer
555	$html_content = ob_get_contents();
556	ob_end_clean();
557
558	// return an associative array of values
559	return array(
560	'html' => $html_content,
561	'tot_records' => $tot_records,
562	'next_page' => $has_next_page,
563	);
564	}
565
566	/**
567	* Preload the necessary CSS/JS assets.
568	*
569	* @return void
570	*/
571	public function preload()
572	{
573	// load assets
574	$this->vbo_app->loadDatePicker();
575	}
576
577	public function render(VBOMultitaskData $data = null)
578	{
579	// increase widget's instance counter
580	static::$instance_counter++;
581
582	// check whether the widget is being rendered via AJAX when adding it through the customizer
583	$is_ajax = $this->isAjaxRendering();
584
585	// generate a unique ID for the sticky notes wrapper instance
586	$wrapper_instance = !$is_ajax ? static::$instance_counter : rand();
587	$wrapper_id = 'vbo-widget-checkav-' . $wrapper_instance;
588
589	// get permissions
590	$vbo_auth_bookings = JFactory::getUser()->authorise('core.vbo.bookings', 'com_vikbooking');
591	if (!$vbo_auth_bookings) {
592	// display nothing
593	return;
594	}
595
596	// we make use of the rates flow report helper class
597	$report = VikBooking::getReportInstance('rates_flow');
598	if (!$report) {
599	// display nothing
600	return;
601	}
602
603	// date formats
604	$df = $report->getDateFormat();
605	$dtpicker_df = $report->getDateFormat('jui');
606
607	// get highest max adults and max children
608	list($max_adults, $max_children) = $this->getMaxestGuests();
609
610	// check multitask data
611	$page_bid = 0;
612	$modal_load_bid = '';
613	if ($data) {
614	$page_bid = $data->getBookingID();
615	if ($page_bid && $data->isModalRendering()) {
616	// immediately load contents according to injected multitask data
617	$modal_load_bid = $page_bid;
618	}
619	}
620
621	?>
622	<div class="vbo-admin-widget-wrapper">
623	<div class="vbo-admin-widget-head">
624	<h4><?php echo $this->widgetIcon; ?> <span><?php echo $this->widgetName; ?></span></h4>
625	</div>
626	<div id="<?php echo $wrapper_id; ?>" class="vbo-widget-checkav-wrap" data-instance="<?php echo $wrapper_instance; ?>" data-pagebid="<?php echo $page_bid; ?>" data-offset="0" data-length="<?php echo $this->res_per_page; ?>">
627	<div class="vbo-widget-checkav-filters">
628	<div class="vbo-widget-checkav-filters-main">
629	<div class="vbo-widget-checkav-filter vbo-widget-checkav-filter-dpicker">
630	<div class="vbo-field-calendar">
631	<div class="input-append">
632	<input type="text" class="vbo-widget-checkav-checkindt" value="" placeholder="<?php echo htmlspecialchars(JText::translate('VBPICKUPAT')); ?>" />
633	<button type="button" class="btn btn-secondary vbo-widget-checkav-checkindt-trigger"><?php VikBookingIcons::e('calendar'); ?></button>
634	</div>
635	</div>
636	</div>
637	<div class="vbo-widget-checkav-filter vbo-widget-checkav-filter-nights">
638	<label for="vbo-widget-checkav-nights-<?php echo $wrapper_instance; ?>"><?php echo JText::translate('VBDAYS'); ?></label>
639	<input type="number" id="vbo-widget-checkav-nights-<?php echo $wrapper_instance; ?>" class="vbo-widget-checkav-nights" min="1" max="365" step="1" value="1" />
640	</div>
641	</div>
642	<div class="vbo-widget-checkav-filters-secondary">
643	<div class="vbo-widget-checkav-filter vbo-widget-checkav-filter-adults">
644	<label for="vbo-widget-checkav-adults-<?php echo $wrapper_instance; ?>"><?php echo JText::translate('VBEDITORDERADULTS'); ?></label>
645	<input type="number" id="vbo-widget-checkav-adults-<?php echo $wrapper_instance; ?>" class="vbo-widget-checkav-adults" min="0" max="<?php echo $max_adults; ?>" step="1" value="2" />
646	</div>
647	<div class="vbo-widget-checkav-filter vbo-widget-checkav-filter-children">
648	<label for="vbo-widget-checkav-children-<?php echo $wrapper_instance; ?>"><?php echo JText::translate('VBEDITORDERCHILDREN'); ?></label>
649	<input type="number" id="vbo-widget-checkav-children-<?php echo $wrapper_instance; ?>" class="vbo-widget-checkav-children" min="0" max="<?php echo $max_children; ?>" step="1" value="0" />
650	</div>
651	</div>
652	<div class="vbo-widget-checkav-filters-submit">
653	<div class="vbo-widget-checkav-filter vbo-widget-checkav-filter-submit">
654	<button type="button" class="btn vbo-config-btn" onclick="vboWidgetCheckAvailabilityCalc('<?php echo $wrapper_id; ?>');"><?php VikBookingIcons::e('bed'); ?><?php echo JText::translate('VBRATESOVWRATESCALCULATORCALC'); ?></button>
655	</div>
656	</div>
657	</div>
658	<div class="vbo-widget-checkav-results"></div>
659	</div>
660	</div>
661	<?php
662
663	if (static::$instance_counter === 0 \|\| $is_ajax) {
664	/**
665	* Print the JS code only once for all instances of this widget.
666	* The real rendering is made through AJAX, not when the page loads.
667	*/
668	?>
669	<a class="vbo-widget-checkav-basenavuri" href="index.php?option=com_vikbooking&task=calendar&cid[]=%d&checkin=%s&checkout=%s&adults=%d&children=%d&idprice=%d&booknow=1" style="display: none;"></a>
670	<a class="vbo-widget-checkav-splitstayuri" href="index.php?option=com_vikbooking&task=calendar&cid[]=%d&adults=%d&children=%d" style="display: none;"></a>
671
672	<script type="text/javascript">
673
674	/**
675	* Display the loading skeletons.
676	*/
677	function vboWidgetCheckAvailabilitySkeletons(wrapper) {
678	var widget_instance = jQuery('#' + wrapper);
679	if (!widget_instance.length) {
680	return false;
681	}
682	widget_instance.find('.vbo-widget-checkav-results').html('');
683	for (var i = 0; i < 1; i++) {
684	var skeleton = '';
685	skeleton += '<div class="vbo-dashboard-guest-activity vbo-dashboard-guest-activity-skeleton">';
686	skeleton += ' <div class="vbo-dashboard-guest-activity-avatar">';
687	skeleton += ' <div class="vbo-skeleton-loading vbo-skeleton-loading-avatar"></div>';
688	skeleton += ' </div>';
689	skeleton += ' <div class="vbo-dashboard-guest-activity-content">';
690	skeleton += ' <div class="vbo-dashboard-guest-activity-content-head">';
691	skeleton += ' <div class="vbo-skeleton-loading vbo-skeleton-loading-title"></div>';
692	skeleton += ' </div>';
693	skeleton += ' <div class="vbo-dashboard-guest-activity-content-info-msg">';
694	skeleton += ' <div class="vbo-skeleton-loading vbo-skeleton-loading-content"></div>';
695	skeleton += ' </div>';
696	skeleton += ' </div>';
697	skeleton += '</div>';
698	// append skeleton
699	jQuery(skeleton).appendTo(widget_instance.find('.vbo-widget-checkav-results'));
700	}
701	}
702
703	/**
704	* Perform the request to load the available room rates.
705	*/
706	function vboWidgetCheckAvailabilityLoad(wrapper, checkbid) {
707	var widget_instance = jQuery('#' + wrapper);
708	if (!widget_instance.length) {
709	return false;
710	}
711
712	// get vars for making the request
713	var current_offset = parseInt(widget_instance.attr('data-offset'));
714	var length_per_page = parseInt(widget_instance.attr('data-length'));
715	var checkin_date = widget_instance.find('.vbo-widget-checkav-checkindt').val();
716	var num_nights = widget_instance.find('.vbo-widget-checkav-nights').val();
717	var num_adults = widget_instance.find('.vbo-widget-checkav-adults').val();
718	var num_children = widget_instance.find('.vbo-widget-checkav-children').val();
719
720	var bid = null;
721	if (typeof checkbid !== 'undefined' && checkbid) {
722	bid = checkbid;
723	}
724
725	// the widget method to call
726	var call_method = 'loadRoomRates';
727
728	// make a request to load the available room rates
729	VBOCore.doAjax(
730	"<?php echo $this->getExecWidgetAjaxUri(); ?>",
731	{
732	widget_id: "<?php echo $this->getIdentifier(); ?>",
733	call: call_method,
734	return: 1,
735	offset: current_offset,
736	length: length_per_page,
737	checkin_date: checkin_date,
738	num_nights: num_nights,
739	num_adults: num_adults,
740	num_children: num_children,
741	bid: bid,
742	wrapper: wrapper,
743	tmpl: "component"
744	},
745	function(response) {
746	try {
747	var obj_res = typeof response === 'string' ? JSON.parse(response) : response;
748	if (!obj_res.hasOwnProperty(call_method) \|\| !obj_res[call_method]) {
749	console.error('Unexpected JSON response', obj_res);
750	return false;
751	}
752
753	// replace HTML with new available room rates
754	widget_instance.find('.vbo-widget-checkav-results').html(obj_res[call_method]['html']);
755
756	// check results
757	var tot_records = obj_res[call_method]['tot_records'] \|\| 0;
758	if (!isNaN(tot_records) && parseInt(tot_records) < 1) {
759	// no results can indicate the offset is invalid or too high
760	if (!isNaN(current_offset) && parseInt(current_offset) > 0) {
761	// reset offset to 0
762	widget_instance.attr('data-offset', 0);
763	// show loading skeletons
764	vboWidgetCheckAvailabilitySkeletons(wrapper);
765	// reload the first page
766	vboWidgetCheckAvailabilityLoad(wrapper);
767	}
768	}
769	} catch(err) {
770	console.error('could not parse JSON response', err, response);
771	}
772	},
773	function(error) {
774	// remove the skeleton loading
775	widget_instance.find('.vbo-widget-checkav-results').find('.vbo-dashboard-guest-activity-skeleton').remove();
776	console.error(error);
777	}
778	);
779	}
780
781	/**
782	* Navigate between the various pages of the available room rates.
783	*/
784	function vboWidgetCheckAvailabilityNavigate(wrapper, direction) {
785	var widget_instance = jQuery('#' + wrapper);
786	if (!widget_instance.length) {
787	return false;
788	}
789
790	// show loading skeletons
791	vboWidgetCheckAvailabilitySkeletons(wrapper);
792
793	var instance_val = widget_instance.attr('data-instance');
794
795	// current offset
796	var current_offset = parseInt(widget_instance.attr('data-offset'));
797
798	// events per page per type
799	var steps = <?php echo $this->res_per_page; ?>;
800
801	// check direction and update offsets for nav
802	if (direction > 0) {
803	// navigate forward
804	widget_instance.attr('data-offset', (current_offset + steps));
805	} else {
806	// navigate backward
807	var new_offset = current_offset - steps;
808	new_offset = new_offset >= 0 ? new_offset : 0;
809	widget_instance.attr('data-offset', new_offset);
810	}
811
812	// launch navigation
813	vboWidgetCheckAvailabilityLoad(wrapper);
814	}
815
816	/**
817	* Calculate the available room rates.
818	*/
819	function vboWidgetCheckAvailabilityCalc(wrapper) {
820	var widget_instance = jQuery('#' + wrapper);
821	if (!widget_instance.length) {
822	return false;
823	}
824
825	// show loading skeletons
826	vboWidgetCheckAvailabilitySkeletons(wrapper);
827
828	// always reset offset to the first page
829	widget_instance.attr('data-offset', 0);
830
831	// load data
832	vboWidgetCheckAvailabilityLoad(wrapper);
833	}
834
835	/**
836	* Triggers when the multitask panel opens.
837	*/
838	function vboWidgetCheckAvailabilityMultitaskOpen(wrapper) {
839	var widget_instance = jQuery('#' + wrapper);
840	if (!widget_instance.length) {
841	return false;
842	}
843
844	// check if a booking ID was set for this page
845	var page_bid = widget_instance.attr('data-pagebid');
846	if (!page_bid \|\| page_bid < 1) {
847	return false;
848	}
849
850	// show loading skeletons
851	vboWidgetCheckAvailabilitySkeletons(wrapper);
852
853	// always reset offset to the first page
854	widget_instance.attr('data-offset', 0);
855
856	// load data by injecting the current booking ID
857	vboWidgetCheckAvailabilityLoad(wrapper, page_bid);
858	}
859
860	/**
861	* Book a room rate.
862	*/
863	function vboWidgetCheckAvailabilityBook(wrapper, rid, din, dout, adults, children, rpid) {
864	var open_url = jQuery('.vbo-widget-checkav-basenavuri').first().attr('href');
865	open_url = open_url.replace('%d', rid);
866	open_url = open_url.replace('%s', din);
867	open_url = open_url.replace('%s', dout);
868	open_url = open_url.replace('%d', adults);
869	open_url = open_url.replace('%d', children);
870	open_url = open_url.replace('%d', rpid);
871	// navigate
872	document.location.href = open_url;
873	}
874
875	/**
876	* Book a split stay.
877	*/
878	function vboWidgetCheckAvailabilityBookSplitStay(rid, adults, children, split_qstring) {
879	var open_url = jQuery('.vbo-widget-checkav-splitstayuri').first().attr('href');
880	open_url = open_url.replace('%d', rid);
881	open_url = open_url.replace('%d', adults);
882	open_url = open_url.replace('%d', children);
883	open_url += '&' + split_qstring;
884	// navigate
885	document.location.href = open_url;
886	}
887
888	/**
889	* Pick alternative stay dates suggested for calculation.
890	*/
891	function vboWidgetCheckAvailabilityPickRoom(wrapper, rid, din, nights, adults, children) {
892	var widget_instance = jQuery('#' + wrapper);
893	if (!widget_instance.length) {
894	return false;
895	}
896
897	// show loading skeletons
898	vboWidgetCheckAvailabilitySkeletons(wrapper);
899
900	// always reset offset to the first page
901	widget_instance.attr('data-offset', 0);
902
903	// populate check-in date
904	widget_instance.find('.vbo-widget-checkav-checkindt').datepicker('setDate', din);
905
906	// set number of nights, adults and children
907	widget_instance.find('.vbo-widget-checkav-nights').val(nights);
908	widget_instance.find('.vbo-widget-checkav-adults').val(adults);
909	widget_instance.find('.vbo-widget-checkav-children').val(children);
910
911	// load data (we ignore the room ID passed to display all options available)
912	vboWidgetCheckAvailabilityLoad(wrapper);
913	}
914
915	</script>
916	<?php
917	}
918	?>
919
920	<script type="text/javascript">
921
922	jQuery(function() {
923
924	// render datepicker calendar for dates navigation
925	jQuery('#<?php echo $wrapper_id; ?>').find('.vbo-widget-checkav-checkindt').datepicker({
926	minDate: 0,
927	maxDate: "+3y",
928	yearRange: "<?php echo date('Y'); ?>:<?php echo (date('Y') + 3); ?>",
929	changeMonth: true,
930	changeYear: true,
931	dateFormat: "<?php echo $dtpicker_df; ?>"
932	});
933
934	// triggering for datepicker calendar icon
935	jQuery('#<?php echo $wrapper_id; ?>').find('.vbo-widget-checkav-checkindt-trigger').click(function() {
936	var jdp = jQuery(this).parent().find('input.hasDatepicker');
937	if (jdp.length) {
938	jdp.focus();
939	}
940	});
941
942	// subscribe to the multitask-panel-open event
943	document.addEventListener(VBOCore.multitask_open_event, function() {
944	vboWidgetCheckAvailabilityMultitaskOpen('<?php echo $wrapper_id; ?>');
945	});
946
947	<?php
948	if ($modal_load_bid) {
949	// immediately fire the adaptive rendering according to multitask data
950	?>
951	vboWidgetCheckAvailabilityMultitaskOpen('<?php echo $wrapper_id; ?>');
952	<?php
953	}
954	?>
955
956	});
957
958	</script>
959
960	<?php
961	}
962
963	/**
964	* Returns the maximum number of adults and children as a sum from all rooms.
965	* Internal method for this widget only.
966	*
967	* @return array two values, respectively for highest adults and children.
968	*/
969	protected function getMaxestGuests()
970	{
971	$maxest = array(1, 1);
972
973	$dbo = JFactory::getDbo();
974
975	$q = "SELECT SUM(`toadult`) AS `max_adults`, SUM(`tochild`) AS `max_children` FROM `#__vikbooking_rooms`;";
976	$dbo->setQuery($q);
977	$record = $dbo->loadAssoc();
978	if ($record) {
979	$maxest = array($record['max_adults'], $record['max_children']);
980	}
981
982	return $maxest;
983	}
984
985	/**
986	* In case the multitask panel injects a booking ID, this method
987	* prepares the proper values to use for loading room rates.
988	*
989	* @param int $bid the booking id.
990	* @param bool $multi_rooms whether to return array of guests
991	* when multiple rooms booked.
992	*
993	* @return array list of values to use for loading.
994	*/
995	protected function getBookingLoadValues($bid, $multi_rooms = true)
996	{
997	// set default values
998	$checkin_date = '';
999	$num_nights = 0;
1000	$num_adults = 0;
1001	$num_children = 0;
1002	$room_ids = [];
1003
1004	if (empty($bid)) {
1005	// do nothing
1006	return [$checkin_date, $num_nights, $num_adults, $num_children, $room_ids];
1007	}
1008
1009	// get booking details
1010	$booking = VikBooking::getBookingInfoFromID($bid);
1011
1012	if (!is_array($booking) \|\| !count($booking)) {
1013	// do nothing
1014	return [$checkin_date, $num_nights, $num_adults, $num_children, $room_ids];
1015	}
1016
1017	// get reservation rooms
1018	$book_rooms = VikBooking::loadOrdersRoomsData($booking['id']);
1019
1020	if (!is_array($book_rooms) \|\| !count($book_rooms)) {
1021	// do nothing
1022	return [$checkin_date, $num_nights, $num_adults, $num_children, $room_ids];
1023	}
1024
1025	// build proper values for this reservation
1026	$checkin_date = date('Y-m-d', $booking['checkin']);
1027	$num_nights = $booking['days'];
1028	$arr_adults = [];
1029	$arr_children = [];
1030	foreach ($book_rooms as $roomres) {
1031	$num_adults += $roomres['adults'];
1032	$num_children += $roomres['children'];
1033	$arr_adults[] = $roomres['adults'];
1034	$arr_children[] = $roomres['children'];
1035	$room_ids[] = $roomres['idroom'];
1036	if ($booking['split_stay']) {
1037	// do not sum the guests in case of split stay
1038	$num_adults = $roomres['adults'];
1039	$num_children = $roomres['children'];
1040	}
1041	}
1042
1043	if (count($book_rooms) > 1 && $multi_rooms === true && !$booking['split_stay']) {
1044	// return the adults and children as array rather than as integers
1045	$num_adults = $arr_adults;
1046	$num_children = $arr_children;
1047	}
1048
1049	return [$checkin_date, $num_nights, $num_adults, $num_children, $room_ids];
1050	}
1051	}
1052