To Do

todo.rb

class Task
  attr_accessor :unique_id, :description, :creation_time, :completion_time

  def initialize(description,task_list)
    @description = description
    @unique_id = task_list.task_counter
    @creation_time = Time.now
    @completion_time = nil
    task_list.add(self)
  end

  def complete
    @completion_time = Time.now
  end


end



class Task_list
  attr_accessor :contents, :task_counter

  def initialize
    @task_counter = 1
    @file = File.open(File.expand_path("../file.txt",__FILE__),"w")
    @contents = []
  end


  def add(task)
    @contents << task
    @task_counter += 1
  end


  def delete(unique_id_to_delete)
    @contents.each_with_index do |task,index|
      if task.unique_id == unique_id_to_delete
        @contents.delete(task)
        return task
      end
    end
  end


  def output_to_file
    File.open(File.expand_path("../file.txt",__FILE__),"w") do |file|
        file << "Task ID\tTask \#\tDescription\tCreated At\t\tCompleted At\n"
      @contents.each_with_index do |task,index|
        file << "#{task.unique_id}\t#{index+1}\t#{task.description}\t#{task.creation_time}\t\t#{task.completion_time}\n"
      end
    end
  end


  def import_from_file
    @contents = []
    input = File.open(File.expand_path("../file.txt",__FILE__),"r")
    input_array = []
    input.each do |line|
      input_array << line.gsub("\n","").split("\t")
    end
    input_array.delete(input_array[0])
    input_array.each do |line|
      task = Task.new(line[2],self)
      task.unique_id = line[0]
      task.creation_time = line[3]
      task.completion_time = line[4]
    end
  end

  def list_by_creation_time
    contents_by_creation = @contents.sort_by {|task| task.creation_time }
    contents_by_creation.each_with_index do |task|
      puts "#{task.unique_id}\t#{index+1}\t#{task.description}\t#{task.creation_time}\t\t#{task.completion_time}\n"
    end




  end

end

tl1 = Task_list.new
p tl1
breakfast = Task.new("eat breakfast",tl1)
lunch = Task.new("eat lunch",tl1)
dinner = Task.new("eat dinner",tl1)
p tl1.contents

#task.creation_time.strftime(%Q(%b %d, %l:%M %p))