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fab-manager/app/models/availability.rb

180 lines
6.3 KiB
Ruby

# frozen_string_literal: true
# Availability stores time slots that are available to reservation for an associated reservable
# Eg. a 3D printer will be reservable on thursday from 9 to 11 pm
# Availabilities may be subdivided into Slots (of 1h), for some types of reservables (eg. Machine)
class Availability < ApplicationRecord
# elastic initialisations
include Elasticsearch::Model
index_name 'fablab'
document_type 'availabilities'
has_many :machines_availabilities, dependent: :destroy
has_many :machines, through: :machines_availabilities
accepts_nested_attributes_for :machines, allow_destroy: true
has_many :trainings_availabilities, dependent: :destroy
has_many :trainings, through: :trainings_availabilities
has_many :spaces_availabilities, dependent: :destroy
has_many :spaces, through: :spaces_availabilities
has_many :slots
has_many :slots_reservations, through: :slots
has_many :reservations, through: :slots
has_one :event
has_many :availability_tags, dependent: :destroy
has_many :tags, through: :availability_tags
accepts_nested_attributes_for :tags, allow_destroy: true
has_many :plans_availabilities, dependent: :destroy
has_many :plans, through: :plans_availabilities
accepts_nested_attributes_for :plans, allow_destroy: true
scope :machines, -> { where(available_type: 'machines') }
scope :trainings, -> { includes(:trainings).where(available_type: 'training') }
scope :spaces, -> { includes(:spaces).where(available_type: 'space') }
attr_accessor :is_reserved, :current_user_slots_reservations_ids, :can_modify
validates :start_at, :end_at, presence: true
validate :length_must_be_slot_multiple, unless: proc { end_at.blank? or start_at.blank? }
validate :should_be_associated
## elastic callbacks
after_save { AvailabilityIndexerWorker.perform_async(:index, id) }
after_destroy { AvailabilityIndexerWorker.perform_async(:delete, id) }
# elastic mapping
settings index: { number_of_replicas: 0 } do
mappings dynamic: 'true' do
indexes 'available_type', analyzer: 'simple'
indexes 'subType', index: 'not_analyzed'
end
end
def safe_destroy
case available_type
when 'machines'
reservations = Reservation.where(reservable_type: 'Machine', reservable_id: machine_ids)
.joins(:slots)
.where('slots.availability_id = ?', id)
when 'training'
reservations = Reservation.where(reservable_type: 'Training', reservable_id: training_ids)
.joins(:slots)
.where('slots.availability_id = ?', id)
when 'space'
reservations = Reservation.where(reservable_type: 'Space', reservable_id: space_ids)
.joins(:slots)
.where('slots.availability_id = ?', id)
when 'event'
reservations = Reservation.where(reservable_type: 'Event', reservable_id: event&.id)
.joins(:slots)
.where('slots.availability_id = ?', id)
else
Rails.logger.warn "[safe_destroy] Availability with unknown type #{available_type}"
reservations = []
end
if reservations.size.zero?
# this update may not call any rails callbacks, that's why we use direct SQL update
update_column(:destroying, true)
destroy
else
false
end
end
## compute the total number of places over the whole space availability
def available_space_places
return unless available_type == 'space'
duration = slot_duration || Setting.get('slot_duration').to_i
((end_at - start_at) / duration.minutes).to_i * nb_total_places
end
def title(filter = {})
case available_type
when 'machines'
return machines.to_ary.delete_if { |m| !filter[:machine_ids].include?(m.id) }.map(&:name).join(' - ') if filter[:machine_ids]
machines.map(&:name).join(' - ')
when 'event'
event.name
when 'training'
trainings.map(&:name).join(' - ')
when 'space'
spaces.map(&:name).join(' - ')
else
Rails.logger.warn "[title] Availability with unknown type #{available_type}"
'???'
end
end
# check if the reservations are complete?
# if a nb_total_places hasn't been defined, then places are unlimited
def full?
return false if nb_total_places.blank?
if available_type == 'event'
event.nb_free_places.zero?
else
slots.map(&:full?).reduce(:&)
end
end
def available_places_per_slot(reservable = nil)
case available_type
when 'training'
nb_total_places || reservable&.nb_total_places || trainings.map(&:nb_total_places).max
when 'event'
event.nb_total_places
when 'space'
nb_total_places || reservable&.default_places || spaces.map(&:default_places).max
when 'machines'
reservable.nil? ? machines.count : 1
else
raise TypeError
end
end
# the resulting JSON will be indexed in ElasticSearch, as /fablab/availabilities
def as_indexed_json
json = JSON.parse(to_json)
json['hours_duration'] = (end_at - start_at) / (60 * 60)
json['subType'] = case available_type
when 'machines'
machines_availabilities.map { |ma| ma.machine.friendly_id }
when 'training'
trainings_availabilities.map { |ta| ta.training.friendly_id }
when 'event'
[event.category.friendly_id]
when 'space'
spaces_availabilities.map { |sa| sa.space.friendly_id }
else
[]
end
json['bookable_hours'] = json['hours_duration'] * json['subType'].length
json['date'] = start_at.to_date
json.to_json
end
private
def length_must_be_slot_multiple
return unless available_type == 'machines' || available_type == 'space'
duration = slot_duration || Setting.get('slot_duration').to_i
return unless end_at < (start_at + duration.minutes)
errors.add(:end_at, I18n.t('availabilities.length_must_be_slot_multiple', MIN: duration))
end
def should_be_associated
return unless available_type == 'machines' && machine_ids.count.zero?
errors.add(:machine_ids, I18n.t('availabilities.must_be_associated_with_at_least_1_machine'))
end
end