demo.rb

require 'byebug'
require_relative 'patient'
require_relative 'room'

harry = Patient.new(name: 'Harry Potter', age: 28)
ron = Patient.new(name: 'Ron Weasley', age: 28)
hermione = Patient.new(name: 'Hermione Granger', age: 28)
draco = Patient.new(name: 'Draco Malfoy', age: 28)

hogwarts_room = Room.new(capacity: 3, decorative_theme: 'Hogwarts')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')
my_little_pony_room = Room.new(capacity: 3, decorative_theme: 'My Little Pony')

harry.room = hogwarts_room
hogwarts_room.patients << harry

p harry
p hogwarts_room


hogwarts_room.add_patient(harry)



# hogwarts_room.add_patient(ron)
# hogwarts_room.add_patient(hermione)
# hogwarts_room.add_patient(draco)

# byebug

patient.rb

class Patient
  attr_reader :name
  attr_accessor :id, :room

  def initialize(attributes = {})
    @id = attributes[:id]
    @name = attributes[:name]
    @cured = attributes[:cured] || false
    @age = attributes[:age]
  end

  def cure!
    @cured = true
  end
end

patient_repository.rb

class PatientRepository
  def initialize(csv_file) # 'patients.csv'
    @csv_file = csv_file
    @patients = []
    @next_id = 1
    load_csv
  end

  def find(id)
    @patients.select{|patient| patient.id == id }.first
  end

  def add_patient(patient)
    patient.id = @next_id
    @next_id += 1
    @patients << patient
    save_csv
  end

  def load_csv
    csv_options = { headers: :first_row, header_converters: :symbol }
    CSV.foreach(@csv_file, csv_options) do |row|
      @next_id += 1
      patient = Patient.new({ id: row['id'], name: row['name'], cured: row['cured'] })
      room = @room_repository.find(row['room_id'])
      room.add_patient(patient)
      @patients << patient
    end
  end

  def save_csv
    @patients.each do |patient|
      # save to csv
    end
  end
end

patients.csv

room.rb

class Room
  attr_reader :decorative_theme
  attr_accessor :id, :patients

  def initialize(attributes = {})
    @id = attributes[:id]
    @capacity = attributes[:capacity] || 0
    @patients = []
    @decorative_theme = attributes[:decorative_theme]
  end

  def full?
    @patients.size == @capacity
  end

  def add_patient(patient)
    p self.decorative_theme # Hogwarts

    # fail(Exception, "Room is full!") if full?
    @patients << patient
    patient.room = self
  end
end

rooms.csv