todo_outline

Components
1.  Database    - Text file (maintains each list item)
2.  User device - Takes input and displays output to user
3.  Middleman   - Translates between database and user device 
                - (i.e. takes input from user device and tells database to save it)
                - (i.e. asks database for current list or specific list items)

Potential Classes
ListItem - (id, task (text), status)
List     - Array ListItem objects

UserInterface - displaying output to user

Middleman     - Translates prompt into action (get, add, delete, complete, list)

Database      - Maintains each list item (ListItems, get, add, delete, complete, list)

__________________

ListItem
-Attributes - id, item (string), status
-Methods    - 

List
-Attributes - list_items (array of ListItems)
-Methods    - get_item, delete_item, update_status

Middleman
-Attributes - Database, UserInterface
-Methods    - (get, add, delete, complete, list)



DRIVER CODE

action  => set to some action from parser
item_id => only for delete and complete
task    => actual string of the task

middle_man = MiddleMan.new({:action => action, :item_id => item_id, :task => task})

if action is add
  middle_man.add(task)            --->   @database.add_item(task)

if action is list
  middle_man.get_list             --->   @database.get_list
  middle_man.send_list            --->   @user_interface.display_list(list)

if action is delete
  middle_man.delete(id)           --->   @database.delete(id)

if action is complete
  middle_man.complete(id)         --->   @database.complete(id)