Class: Lab::NotificationService

Inherits:
Object
  • Object
show all
Defined in:
app/services/lab/notification_service.rb

Overview

notification service

Instance Method Summary collapse

Instance Method Details

#clear(alert_id) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 12

def clear(alert_id)
  alert = NotificationAlert.find(alert_id)
  # update the notification alert recipient to cleared and read only for the current user
  alert.notification_alert_recipients.where(user_id: User.current.user_id).update_all(cleared: true, alert_read: true)
end

#create_notification(alert_type, alert_message, uniq_checkers: { test_type_id: nil, order_id: nil, specimen_id: nil }) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 30

def create_notification(alert_type, alert_message,
                        uniq_checkers: { test_type_id: nil, order_id: nil, specimen_id: nil })
  return if alert_type != 'LIMS'

  test_type_id = uniq_checkers[:test_type_id]
  order_id = uniq_checkers[:order_id]
  specimen_id = uniq_checkers[:specimen_id]

  return unless test_type_id.present? && order_id.present? && specimen_id.present?

  lab = Lab::Lims::Utils.lab_user
  unless lab
    Rails.logger.warn('NotificationService: lab_daemon user not found, skipping notification creation')
    return
  end

  ActiveRecord::Base.transaction do
    # Atomic find or create - checks and creates in one operation
    alert = NotificationAlert.find_or_create_by!(
      test_type_id: test_type_id,
      order_id: order_id,
      specimen_id: specimen_id
    ) do |new_alert|
      # Only set these attributes on creation
      new_alert.text = alert_message.to_json
      new_alert.date_to_expire = Time.now + notification_period.days
      new_alert.creator = lab
      new_alert.changed_by = lab
      new_alert.date_created = Time.now
    end

    notify(alert, users(order_location(alert.order_id)))
  rescue ActiveRecord::RecordNotUnique
    # Handle race condition if unique constraint exists
    Rails.logger.info("Duplicate notification prevented for test_type: #{test_type_id}, order: #{order_id}, specimen: #{specimen_id}")
  rescue ActiveRecord::InvalidForeignKey => e
    Rails.logger.error("Invalid foreign key: #{e.message}")
  rescue StandardError => e
    Rails.logger.error("Unexpected error: #{e.message}")
  end
end

#notification_period ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 72

def notification_period
  result = GlobalProperty.where(property: 'notification.period')&.first
  return result.property_value.to_i if result.present?

  7 # default to 7 days
end

#notify(notification_alert, recipients) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 91

def notify(notification_alert, recipients)    
  recipients.each do |recipient|
    next if recipient.notification_alert_recipients.exists?(alert_id: notification_alert.id)

    recipient.notification_alert_recipients.create(
      alert_id: notification_alert.id
    )
  end
end

#notify_all(notification_alert, users) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 101

def notify_all(notification_alert, users)
  users.each do |user|
    user.notification_alert_recipients.create(
      alert_id: notification_alert.id
    )
  end
end

#notify_all_users(notification_alert) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 109

def notify_all_users(notification_alert)
  User.all.each do |user|
    user.notification_alert_recipients.create!(
      alert_id: notification_alert.id
    )
  end
end

#order_location(order_id) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 85

def order_location(order_id)
  return nil unless Observation.column_names.include?('location_id')

  Observation.find_by(order_id: order_id)&.location_id
end

#read(alerts) ⇒ Object

this updates the notification to read



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# File 'app/services/lab/notification_service.rb', line 19

def read(alerts)
  alerts.each do |alert|
    notification = NotificationAlertRecipient.where(user_id: User.current.user_id, alert_id: alert,
                                                    alert_read: false).first
    next if notification.blank?

    notification.alert_read = true
    notification.save
  end
end

#uncleared ⇒ Object

this gets all uncleared notifications of the user



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# File 'app/services/lab/notification_service.rb', line 6

def uncleared
  NotificationAlert.joins(:notification_alert_recipients).where(
    'notification_alert_recipient.user_id = ?', User.current.user_id
  )
end

#users(location_id = nil) ⇒ Object 



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# File 'app/services/lab/notification_service.rb', line 79

def users(location_id = nil)
  return User.joins(:roles).where(location_id: location_id).uniq if location_id.present? && User.column_names.include?('location_id')

  User.joins(:roles).uniq
end