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class Theatre | |
COST = { running: 3, fixed: 180 } | |
attr_accessor :number_of_audience, :ticket_price | |
def revenue | |
@number_of_audience * @ticket_price | |
end | |
def total_cost | |
COST[:fixed] + (@number_of_audience * COST[:running]) | |
end | |
def net | |
revenue - total_cost | |
end | |
def profit? | |
net > 0 | |
end | |
end | |
class TheatreCLI | |
def initialize | |
@theatre = Theatre.new | |
end | |
def seek_number_of_attendes | |
print 'Number of audience: ' | |
@theatre.number_of_audience = gets.chomp.to_i | |
end | |
def seek_ticket_price | |
print 'Ticket price: ' | |
@theatre.ticket_price = gets.chomp.to_i | |
end | |
def print_revenue | |
puts "Revenue for the theatre is RM #{@theatre.revenue}." | |
end | |
def print_profit | |
message_prefix = @theatre.profit? ? 'Profit made' : 'Loss incurred' | |
puts "#{message_prefix} #{@theatre.net.abs}." | |
end | |
def self.run | |
TheatreCLI.new.instance_eval do | |
seek_ticket_price | |
seek_number_of_attendes | |
print_revenue | |
print_profit | |
end | |
end | |
end | |
TheatreCLI.run |
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