rr.rb

require 'yaml'

class User
  def initialize(id, student)
    @id = id
    @isStudent = student
    # TODO eventually add other stuff such as class, school, area etc. and keep
  end

  def isStudent
    @isStudent
  end

  def isTeacher
    !@isStudent
  end

  def to_s
    "In User:\n   #{@id}, #{@isStudent}\n"
  end
end

class Users
  def initialize
    @users = []
    restore
  end
  def insertUser u
    @users << u
    backup
  end
  def userExists u
    @users.include? u
  end
  def backup
    File.open('users.yml', 'r+') { |f| f.write(@users.to_yaml) }
  end

  def restore
    File.new('users.yml', 'w+') unless File.exists?('users.yml')
    @users = YAML.load_file('users.yml')

  end
end


class Conversations
  def initialize()
    @convos = []
  end

  def addConversation(teacher, student)
    @convos << [teacher, student]
  end

  def removeConversation(t, s)
    @convos.delete([t, s])
  end

  def conversationExists(user)
    @convos.each do |t, s|
      return t if (user == s) || (t == user)
    end
    nil
  end
end



bb = Users.new
# puts bb.instance_variable_get("@users").length
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true
bb.insertUser User.new 11, true