#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
class Week
  def initialize(owner = "名なしの権兵衛")
    @week = Hash.new
    @days = %w(sun mon tue wed thu fri sat)
    setowner(owner)
    for day in @days
      @week[day] = ""
    end
  end
  def canonicalize_day(day)
    day[0,3].downcase
  end
  def set(day, plan)
    d = canonicalize_day(day)
    if @week.has_key?(d) then
      @week[d] = plan
    else
      STDERR.puts "#{day} という曜日はないのさ"
      nil
    end
  end
  def get(day)
    d = canonicalize_day(day)
    if @week.has_key?(d) then
      @week[d]
    else
      nil
    end
  end
  def getowner()
    @name
  end
  def setowner(name)
    @name = name
  end
  def display()
    printf("------ %sさんの予定 ------\n", @name)
    for d in @days do
      printf("%3s\t%s\n", d.capitalize, get(d))
    end
  end
end

if $0 == __FILE__               # 「スクリプト単体で呼ばれた場合」の定石
  taro = Week.new("太郎")
  hana = Week.new("花子")

  taro.set("Thursday", "焼き肉")
  taro.setowner("TALOW!")
  hana.set("Thursday", "花見")

  taro.display
  hana.display
end