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@sirupsen
Created December 13, 2009 01:46
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Gist for "What I Wish a Ruby Programmer Had Told Me One Year Ago".
class TodoList < Array
def self.load(file)
# read the file, create a list, create items, add them to the list, return the list
list = TodoList.new
File.read(file).each_line do |line|
list << line.chomp
end
list
end
def add(todo)
if todo.is_a?(TodoItem)
push(todo)
else
push(TodoItem.new(todo))
end
end
alias_method :<<, :add
def mark_done(id)
self[id - 1].done = true
end
def write(file)
File.open(file, 'w') do |f|
f.write(reject {|item| item.done?}.join("\n"))
end
end
end
class TodoItem
# provide reader and setter for name and state
attr_accessor :name, :done
alias_method :done?, :done
def initialize(name)
# store name
# set state to undone
@name = name
@done = false
end
def to_s
@name
end
end
class CommandLineInterface
def initialize
@list = TodoList.load("todo.td")
end
def done
@list.done ARGV[1]
end
def add
@list << ARGV[1..-1].join(" ")
end
def write
@list.write("todo.td")
end
def list
@list.each_with_index do |line, index|
puts "##{index + 1} - #{line.name.capitalize}"
end
end
end
cli = CommandLineInterface.new
cli.send ARGV[0]
cli.write
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