#!/usr/bin/ruby
class OtherFish
	def test_combo(officers)
		# test conditions
		return false if (officers.include?(0) and officers[0] != 4)
		return false if (officers.include?(1) and (!officers.include?(2) or (officers.index(1) < officers.index(2))))
		return false if (officers.include?(1) and officers.include?(5))
		return false if (officers.include?(2) and officers.include?(4) and officers.include?(5))
		return false if (officers.include?(2) and (officers[0] == 5 or officers[2] == 1))
		return false if (officers.include?(3) and ((officers.include?(2) ? (officers.index(2) < officers.index(3)) : false) or (officers.include?(4) ? (officers.index(4) < officers.index(3)) : false)))
		return false if (officers[1] == 4)
		return false if (officers[2] == 4 and officers.include?(3))
		return false if (officers.include?(4) and officers.include?(0) and !officers.include?(5))
		return false if (officers.include?(5) and (officers[0] != 5 or officers[0] != 2))
		# now, check that no person is serving in two positions
		return false if ((officers[0] == officers[1]) or (officers[0] == officers[2]) or (officers[1] == officers[2]))
		# well if all is good, then
		return officers
	end
	
	def initialize
		puts "\"The Other Fish\" Problem Solving in Ruby\nby AJ Zmudosky\n"
		candidates = ["Mr. Grouper", "Dr. Trout", "Mr. Ray", "Mr. Mackerel", "The Snapper", "Mr. Bass"]
		attempts = 0
		answers = 0

		(0..5).each { |president|
			(0..5).each { |vice_president|
				(0..5).each { |secretary|
					attempts += 1
					set = test_combo([president, vice_president, secretary])
					if set then
						answers += 1
						puts "True Combination #" + answers.to_s + " on Attempt #" + attempts.to_s + "\n"
						puts "\tPresident: " + candidates[set[0]] + "\n"
						puts "\tVice President: " + candidates[set[1]] + "\n"
						puts "\tSecretary: " + candidates[set[2]] + "\n"
						puts "##########\n"
					end
				}
			}
		}

		puts "Done Evaluating. #{attempts} attempts made. #{answers} successful combinations found.\n"
	end
end

OtherFish.new