Ruby Todos 1.0: Core Features

gistfile1.txt

require_relative 'view'
require_relative 'FileReadWrite'

class Parser
  TODO_FILE = 'Todolist.txt'

  def initialize(user_input)
    @filerw = FileReadWrite.new(TODO_FILE)
    @list = get_list
    @viewer = Viewer.new
    parse(user_input) 
  end

  def add(list_item)
    @list.push("#{@list.length + 1}. [ ] #{list_item}")
    @viewer.add_message(list_item)
    display
    reorder
    write
  end

  def delete(index)
    deleted_item = @list.delete_at(index)
    @viewer.delete_message(text_cleanup(deleted_item))
    reorder
    display
    write
  end

  def list(user_input)
    display
  end

  def complete(index)
    @list[index].sub!("[ ]", "[x]")
    display
    write
  end

  private
    def parse(user_input)
      case user_input.first
      when "list" then list user_input[1..-1]
      when "add" then add user_input[1..-1].join(" ")
      when "delete" then delete (user_input[1].to_i - 1)
      when "complete" then complete (user_input[1].to_i - 1)
      else @viewer.error_message
      end
    end

    def write
      @filerw.write_file(@list)
    end

    def get_list
      @filerw.read_file
    end

    def reorder
      @list.each_with_index do |list_item, index|
        list_item.sub!(/\d+/, "#{index + 1}")
      end
    end

    def display
      @viewer.display(@list)
    end

    def text_cleanup(text)
      text.sub(/^\d*.\s*\W\s\W/, "")
    end

end

gistfile2.txt

class FileReadWrite
  
  def initialize(filename)
    @filename = filename
  end

  def read_file
    File.open(@filename).readlines
  end

  def write_file(list_items)
    File.open(@filename, 'w') do |f| 
      list_items.each { |list_item| f.write(list_item)}
    end
  end
end