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fab-manager/app/services/reservation_limit_service.rb
2023-03-14 16:45:01 +01:00

98 lines
3.9 KiB
Ruby

# frozen_string_literal: true
# Check if a user if allowed to book a reservation without exceeding the limits set by his plan
class ReservationLimitService
class << self
# @param plan [Plan,NilClass]
# @param customer [User]
# @param reservation [CartItem::Reservation]
# @param cart_items [Array<CartItem::BaseItem>]
# @return [Boolean]
def authorized?(plan, customer, reservation, cart_items)
return true if plan.nil? || !plan.limiting
return true if reservation.nil? || !reservation.is_a?(CartItem::Reservation)
limit = limit(plan, reservation.reservable)
return true if limit.nil?
reservation.cart_item_reservation_slots.group_by { |sr| sr.slot.start_at.to_date }.each_pair do |date, reservation_slots|
daily_duration = reservations_duration(customer, date, reservation, cart_items) +
(reservation_slots.map { |sr| sr.slot.duration }.reduce(:+) || 0)
return false if Rational(daily_duration / 3600).to_f > limit.limit
end
true
end
# @param reservation [Reservation]
# @return [Date,NilClass]
def reached_limit_date(reservation)
user = reservation.user
plan = user.subscribed_plan
return nil if plan.nil? || !plan.limiting
limit = limit(plan, reservation.reservable)
return nil if limit.nil?
reservation.slots_reservations.group_by { |sr| sr.slot.start_at.to_date }.each_pair do |date, reservation_slots|
daily_duration = saved_reservations_durations(user, reservation.reservable, date, reservation) +
(reservation_slots.map { |sr| sr.slot.duration }.reduce(:+) || 0)
return date if Rational(daily_duration / 3600).to_f >= limit.limit
end
nil
end
# @param plan [Plan,NilClass]
# @param reservable [Machine,Event,Space,Training]
# @return [PlanLimitation] in hours
def limit(plan, reservable)
return nil unless plan&.limiting
limitations = plan&.plan_limitations&.filter { |limit| limit.reservables.include?(reservable) }
limitations&.find { |limit| limit.limitable_type != 'MachineCategory' } || limitations&.first
end
private
# @param customer [User]
# @param date [Date]
# @param reservation [CartItem::Reservation]
# @param cart_items [Array<CartItem::BaseItem>]
# @return [Integer] in seconds
def reservations_duration(customer, date, reservation, cart_items)
daily_reservations_hours = saved_reservations_durations(customer, reservation.reservable, date)
cart_daily_reservations = cart_items.filter do |item|
item.is_a?(CartItem::Reservation) &&
item != reservation &&
item.reservable == reservation.reservable &&
item.cart_item_reservation_slots
.includes(:slot)
.where("date_trunc('day', slots.start_at) = :date", date: date)
end
daily_reservations_hours +
(cart_daily_reservations.map { |r| r.cart_item_reservation_slots.map { |sr| sr.slot.duration } }.flatten.reduce(:+) || 0)
end
# @param customer [User]
# @param reservable [Machine,Event,Space,Training]
# @param date [Date]
# @param reservation [Reservation]
# @return [Integer] in seconds
def saved_reservations_durations(customer, reservable, date, reservation = nil)
daily_reservations = customer.reservations
.includes(slots_reservations: :slot)
.where(reservable: reservable)
.where(slots_reservations: { canceled_at: nil })
.where("date_trunc('day', slots.start_at) = :date", date: date)
daily_reservations = daily_reservations.where.not(id: reservation.id) unless reservation.nil?
(daily_reservations.map { |r| r.slots_reservations.map { |sr| sr.slot.duration } }.flatten.reduce(:+) || 0)
end
end
end