audible_tasks_view.rb

require_relative 'tasks_view'

class AudibleTasksView < TasksView
  def puts(args)
    super

    `say '#{args}'`
  end
end

task.rb

class Task
  attr_reader :name

  def initialize(name)
    @name = name
    @done = false
  end

  def done?
    @done
  end

  def mark_as_done
    @done = true
  end
end

tasks_controller.rb

require_relative 'tasks_view'
require_relative 'audible_tasks_view'
require_relative 'tasks_repository'

class TasksController
  def initialize(repository)
    @repository = repository

    # @view = TasksView.new
    @view = AudibleTasksView.new
  end

  def list
    @tasks = @repository.all

    @view.display(@tasks)
  end

  def add
    name = @view.ask_for(:name)

    new_task = Task.new(name)

    @repository.add_task(new_task)
  end

  def mark_as_done
    index = @view.ask_for_index('mark as done')

    @repository.mark_as_done(index)
  end

  def destroy
    index = @view.ask_for_index('delete')

    @repository.delete(index)
  end
end

task = Task.new('wake up')
repo = TasksRepository.new('non_existing.csv')
# repo.add_task(task)
controller = TasksController.new(repo)
controller.add
controller.list
# # repo.mark_as_done(0)
controller.mark_as_done
# puts
controller.list

tasks_repository.rb

require_relative 'task'

class TasksRepository
  def initialize(csv_file)
    @csv_file = csv_file

    # array of Task objects
    @tasks = []

    # TODO: load from CSV
  end

  def all
    @tasks
  end

  def add_task(task)
    @tasks << task

    save
  end

  def mark_as_done(index)
    @tasks[index].mark_as_done

    save
  end

  def delete(index)
    @tasks.delete_at(index)

    save
  end

  private

  def save
    # TODO: save all the tasks
  end
end

tasks_view.rb

# human and computer interface
# human 1..infinity
# computer 0..inifity

class TasksView
  def display(tasks)
    tasks.each_with_index do |task, index|
      abc_index = ('A'.ord + index).chr

      puts "#{abc_index} [#{ task.done? ? 'X' : ' ' }] #{task.name}"
    end
  end

  def ask_for(stuff)
    puts "enter #{stuff} of new task: "
    print '> '
    gets.chomp
  end

  def ask_for_index(why)
    puts "enter index of task to #{why}: "
    print '> '

    abc_index = gets.chomp

    abc_index.ord - 'A'.ord

    # gets.chomp.to_i - 1
  end

end

users_controller.rb

class UsersController
  def create
    # 1. validate the params

    # 2. save the user to db (complicated)
    #    -> refactor to Service Object
    UserCreationService.call(params)

    # 3. display / redirect
  end
end