Created
September 16, 2015 00:33
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Secret Santa Exercise
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class SecretSanta | |
attr_accessor :people | |
def initialize(file) | |
@people = [] | |
File.new(file).each_line do |line| | |
first, last = line.split(' ') | |
@people << Person.new(first, last) | |
end | |
assign_santas | |
end | |
def assign_santas | |
print '.' | |
@people.shuffle.each_with_index do |person, i| | |
@people[i].ss_for = person | |
end | |
end | |
def valid? | |
@people.all? do |person| | |
person.last_name != person.ss_for.last_name | |
end | |
end | |
end | |
class Person | |
attr_accessor :first_name, :last_name, :ss_for | |
def initialize(first, last) | |
@first_name = first | |
@last_name = last | |
end | |
def to_s | |
"#{first_name} #{last_name}" | |
end | |
end | |
if __FILE__ == $0 | |
santas = SecretSanta.new('people.txt') | |
santas.assign_santas until santas.valid? | |
puts | |
santas.people.each do |person| | |
printf "%20s is a secret santa for %-20s\n", person.ss_for, person | |
end | |
end |
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