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freescout/app/Subscription.php
2021-10-06 11:05:54 -07:00

446 lines
16 KiB
PHP

<?php
/**
* todo: implement caching by saving all options in one cache variable on register_shutdown_function.
*/
namespace App;
use App\Notifications\BroadcastNotification;
use App\Notifications\WebsiteNotification;
use Illuminate\Database\Eloquent\Model;
class Subscription extends Model
{
// Event types
// Changing ticket status does not fire event
const EVENT_TYPE_NEW = 1;
const EVENT_TYPE_ASSIGNED = 2;
const EVENT_TYPE_UPDATED = 3;
const EVENT_TYPE_CUSTOMER_REPLIED = 4;
const EVENT_TYPE_USER_REPLIED = 5;
const EVENT_TYPE_USER_ADDED_NOTE = 6;
// Events
// Notify me when…
const EVENT_NEW_CONVERSATION = 1;
const EVENT_CONVERSATION_ASSIGNED_TO_ME = 2;
const EVENT_CONVERSATION_ASSIGNED = 6;
const EVENT_FOLLOWED_CONVERSATION_UPDATED = 13;
//const EVENT_MY_TEAM_MENTIONED = 15;
// Notify me when a customer replies…
const EVENT_CUSTOMER_REPLIED_TO_UNASSIGNED = 4;
const EVENT_CUSTOMER_REPLIED_TO_MY = 3;
const EVENT_CUSTOMER_REPLIED_TO_ASSIGNED = 7;
// Notify me when another a user replies or adds a note…
const EVENT_USER_REPLIED_TO_UNASSIGNED = 8;
const EVENT_USER_REPLIED_TO_MY = 5;
const EVENT_USER_REPLIED_TO_ASSIGNED = 9;
// Mediums
const MEDIUM_EMAIL = 1; // This is also website notifications
const MEDIUM_BROWSER = 2; // Browser push notification
const MEDIUM_MOBILE = 3;
const MEDIUM_MENU = 10; // Notifications menu
public static $mediums = [
self::MEDIUM_EMAIL,
self::MEDIUM_BROWSER,
self::MEDIUM_MOBILE,
];
public static $default_subscriptions = [
self::MEDIUM_EMAIL => [
self::EVENT_CONVERSATION_ASSIGNED_TO_ME,
self::EVENT_FOLLOWED_CONVERSATION_UPDATED,
//self::EVENT_MY_TEAM_MENTIONED,
self::EVENT_CUSTOMER_REPLIED_TO_MY,
self::EVENT_USER_REPLIED_TO_MY,
],
self::MEDIUM_BROWSER => [
self::EVENT_CONVERSATION_ASSIGNED_TO_ME,
self::EVENT_FOLLOWED_CONVERSATION_UPDATED,
//self::EVENT_MY_TEAM_MENTIONED,
self::EVENT_CUSTOMER_REPLIED_TO_MY,
self::EVENT_USER_REPLIED_TO_MY,
],
];
/**
* List of events that occured.
*/
public static $occured_events = [];
public $timestamps = false;
/**
* The attributes that are not mass assignable.
*
* @var array
*/
protected $guarded = ['id'];
/**
* Subscribed user.
*/
public function user()
{
return $this->belongsTo('App\User');
}
/**
* Add default subscriptions for user.
*
* @param int $user_id
*/
public static function addDefaultSubscriptions($user_id)
{
self::saveFromArray(self::$default_subscriptions, $user_id);
}
/**
* Save subscriptions from passed array.
*
* @param array $subscriptions [description]
*
* @return [type] [description]
*/
public static function saveFromArray($new_subscriptions, $user_id)
{
$subscriptions = [];
if (is_array($new_subscriptions)) {
foreach ($new_subscriptions as $medium => $events) {
foreach ($events as $event) {
$subscriptions[] = [
'user_id' => $user_id,
'medium' => $medium,
'event' => $event,
];
}
}
}
self::where('user_id', $user_id)->delete();
self::insert($subscriptions);
}
/**
* Check if subscription exists.
*/
public static function exists(array $params, $subscriptions = null)
{
if ($subscriptions) {
// Look in the passed list
foreach ($subscriptions as $subscription) {
foreach ($params as $param_name => $param_value) {
if ($subscription->$param_name != $param_value) {
continue 2;
}
}
return true;
}
} else {
// Search in DB
}
return false;
}
/**
* Detect users to notify by medium.
*/
public static function usersToNotify($event_type, $conversation, $threads, $mailbox_user_ids = null)
{
$thread = $threads[0];
// Ignore imported threads.
if ($thread->imported) {
return true;
}
// Detect events
$events = [];
$prev_thread = null;
if (!empty($threads[1])) {
$prev_thread = $threads[1];
}
switch ($event_type) {
case self::EVENT_TYPE_NEW:
$events[] = self::EVENT_NEW_CONVERSATION;
break;
case self::EVENT_TYPE_ASSIGNED:
$events[] = self::EVENT_CONVERSATION_ASSIGNED_TO_ME;
$events[] = self::EVENT_CONVERSATION_ASSIGNED;
break;
case self::EVENT_TYPE_CUSTOMER_REPLIED:
$events[] = self::EVENT_FOLLOWED_CONVERSATION_UPDATED;
if (!empty($prev_thread) && $prev_thread->user_id) {
$events[] = self::EVENT_CUSTOMER_REPLIED_TO_MY;
$events[] = self::EVENT_CUSTOMER_REPLIED_TO_ASSIGNED;
} else {
$events[] = self::EVENT_CUSTOMER_REPLIED_TO_UNASSIGNED;
}
break;
case self::EVENT_TYPE_USER_REPLIED:
case self::EVENT_TYPE_USER_ADDED_NOTE:
$events[] = self::EVENT_FOLLOWED_CONVERSATION_UPDATED;
if (!empty($prev_thread) && $prev_thread->user_id) {
$events[] = self::EVENT_USER_REPLIED_TO_MY;
$events[] = self::EVENT_USER_REPLIED_TO_ASSIGNED;
} else {
$events[] = self::EVENT_USER_REPLIED_TO_UNASSIGNED;
}
break;
}
$events = \Eventy::filter('subscription.events_by_type', $events, $event_type, $thread);
// Check if assigned user changed
$user_changed = false;
if ($event_type != self::EVENT_TYPE_ASSIGNED && $event_type != self::EVENT_TYPE_NEW) {
if ($thread->type == Thread::TYPE_LINEITEM && $thread->action_type == Thread::ACTION_TYPE_USER_CHANGED) {
$user_changed = true;
} elseif ($prev_thread) {
if ($prev_thread->user_id != $thread->user_id) {
$user_changed = true;
}
} else {
// Get prev thread
if ($prev_thread && $prev_thread->user_id != $thread->user_id) {
$user_changed = true;
}
}
}
if ($user_changed) {
$events[] = self::EVENT_CONVERSATION_ASSIGNED_TO_ME;
$events[] = self::EVENT_CONVERSATION_ASSIGNED;
$events[] = self::EVENT_FOLLOWED_CONVERSATION_UPDATED;
}
$events = array_unique($events);
// Detect subscribed users
if (!$mailbox_user_ids) {
$mailbox_user_ids = $conversation->mailbox->userIdsHavingAccess();
}
$subscriptions = self::whereIn('user_id', $mailbox_user_ids)
->whereIn('event', $events)
->get();
// Filter subscribers
$users_to_notify = [];
foreach ($subscriptions as $i => $subscription) {
// Actions on conversation where user is assignee
if (in_array($subscription->event, [self::EVENT_CONVERSATION_ASSIGNED_TO_ME, self::EVENT_CUSTOMER_REPLIED_TO_MY, self::EVENT_USER_REPLIED_TO_MY]) && $conversation->user_id != $subscription->user_id
) {
continue;
}
// Check if user is following this conversation.
if ($subscription->event == self::EVENT_FOLLOWED_CONVERSATION_UPDATED
&& !$conversation->isUserFollowing($subscription->user_id)
) {
continue;
}
// Skip if user muted notifications for this mailbox
if ($subscription->user->isAdmin()) {
// Mute notifications for events not related directly to the user.
if (!in_array($subscription->event, [self::EVENT_CONVERSATION_ASSIGNED_TO_ME, self::EVENT_FOLLOWED_CONVERSATION_UPDATED, self::EVENT_CUSTOMER_REPLIED_TO_MY, self::EVENT_USER_REPLIED_TO_MY])
&& !\Eventy::filter('subscription.is_related_to_user', false, $subscription, $thread)
) {
$mailbox_settings = $conversation->mailbox->getUserSettings($subscription->user_id);
if (!empty($mailbox_settings->mute)) {
continue;
}
}
}
if (\Eventy::filter('subscription.filter_out', false, $subscription, $thread)) {
continue;
}
$users_to_notify[$subscription->medium][] = $subscription->user;
$users_to_notify[$subscription->medium] = array_unique($users_to_notify[$subscription->medium]);
}
// Add menu notifications, for example.
$users_to_notify = \Eventy::filter('subscription.users_to_notify', $users_to_notify, $event_type, $events, $thread);
return $users_to_notify;
}
/**
* Process events which occured.
*/
public static function processEvents()
{
$notify = [];
$delay = now()->addSeconds(Conversation::UNDO_TIMOUT);
// Collect into notify array information about all users who need to be notified
foreach (self::$occured_events as $event) {
// Get mailbox users ids
$mailbox_user_ids = [];
foreach (self::$mediums as $medium) {
if (!empty($notify[$medium])) {
foreach ($notify[$medium] as $conversation_id => $notify_info) {
if ($notify_info['conversation']->mailbox_id == $event['conversation']->mailbox_id) {
$mailbox_user_ids = $notify_info['mailbox_user_ids'];
break 2;
}
}
}
}
// Get users and threads from previous results to avoid repeated SQL queries.
$users = [];
$threads = [];
foreach (self::$mediums as $medium) {
if (empty($notify[$medium][$event['conversation']->id])) {
$threads = $event['conversation']->getThreads();
break;
} else {
$users = $notify[$medium][$event['conversation']->id]['users'];
$threads = $notify[$medium][$event['conversation']->id]['threads'];
}
}
$users_to_notify = self::usersToNotify($event['event_type'], $event['conversation'], $threads, $mailbox_user_ids);
if (!$users_to_notify || !is_array($users_to_notify)) {
continue;
}
foreach ($users_to_notify as $medium => $medium_users_to_notify) {
// Remove current user from recipients if action caused by current user
foreach ($medium_users_to_notify as $i => $user) {
if ($user->id == $event['caused_by_user_id']) {
unset($medium_users_to_notify[$i]);
}
}
if (count($medium_users_to_notify)) {
$notify[$medium][$event['conversation']->id] = [
// Users subarray contains all users who need to receive notification for all events
'users' => array_unique(array_merge($users, $medium_users_to_notify)),
'conversation' => $event['conversation'],
'threads' => $threads,
'mailbox_user_ids' => $mailbox_user_ids,
];
}
}
}
// - Email notification (better to create them first)
if (!empty($notify[self::MEDIUM_EMAIL])) {
foreach ($notify[self::MEDIUM_EMAIL] as $conversation_id => $notify_info) {
\App\Jobs\SendNotificationToUsers::dispatch($notify_info['users'], $notify_info['conversation'], $notify_info['threads'])
->delay($delay)
->onQueue('emails');
}
}
// - Menu notification (uses same medium as for email)
if (!empty($notify[self::MEDIUM_EMAIL]) || !empty($notify[self::MEDIUM_MENU])) {
$notify_menu = ($notify[self::MEDIUM_EMAIL] ?? []) + ($notify[self::MEDIUM_MENU] ?? []);
foreach ($notify_menu as $notify_info) {
$website_notification = new WebsiteNotification($notify_info['conversation'], self::chooseThread($notify_info['threads']));
$website_notification->delay($delay);
\Notification::send($notify_info['users'], $website_notification);
}
}
// Send broadcast notifications:
// - Browser push notification
$broadcasts = [];
foreach ([self::MEDIUM_EMAIL, self::MEDIUM_BROWSER] as $medium) {
if (empty($notify[$medium])) {
continue;
}
foreach ($notify[$medium] as $notify_info) {
$thread_id = self::chooseThread($notify_info['threads'])->id;
foreach ($notify_info['users'] as $user) {
$mediums = [$medium];
if (!empty($broadcasts[$thread_id]['mediums'])) {
$mediums = array_unique(array_merge($mediums, $broadcasts[$thread_id]['mediums']));
}
$broadcasts[$thread_id] = [
'user' => $user,
'conversation' => $notify_info['conversation'],
'threads' => $notify_info['threads'],
'mediums' => $mediums,
];
}
}
}
// \Notification::sendNow($notify_info['users'], new BroadcastNotification($notify_info['conversation'], $notify_info['threads'][0]));
foreach ($broadcasts as $thread_id => $to_broadcast) {
$broadcast_notification = new BroadcastNotification($to_broadcast['conversation'], self::chooseThread($to_broadcast['threads']), $to_broadcast['mediums']);
$broadcast_notification->delay($delay);
$to_broadcast['user']->notify($broadcast_notification);
}
// - Mobile
\Eventy::action('subscription.process_events', $notify);
self::$occured_events = [];
}
/**
* Get fist meaningful thread for the notification.
*/
public static function chooseThread($threads)
{
$actions_types = [
Thread::ACTION_TYPE_USER_CHANGED,
];
// First thread is the newest.
foreach ($threads as $thread) {
if ($thread->type == Thread::TYPE_LINEITEM && !in_array($thread->action_type, $actions_types)) {
continue;
} else {
return $thread;
}
}
return $threads[0];
}
/**
* Remember event type to process in ProcessSubscriptionEvents middleware on terminate.
*/
public static function registerEvent($event_type, $conversation, $caused_by_user_id, $process_now = false)
{
self::$occured_events[] = [
'event_type' => $event_type,
'conversation' => $conversation,
'caused_by_user_id' => $caused_by_user_id,
];
// Automatically add EVENT_TYPE_UPDATED
if (!in_array($event_type, [self::EVENT_TYPE_UPDATED, self::EVENT_TYPE_NEW])) {
self::$occured_events[] = [
'event_type' => self::EVENT_TYPE_UPDATED,
'conversation' => $conversation,
'caused_by_user_id' => $caused_by_user_id,
];
}
if ($process_now) {
self::processEvents();
}
}
}