hospital app

hospital.rb

class Hospital

  attr_accessor :name, :employees, :patients

  def initialize(name, location)
    @name, @location, @employees, @patients = name, location, [], []
  end
end


class Person

   attr_reader :name, :clearance, :username, :id

  def initialize(name, username, password, id)
    @name, @username, @password, @id = name, username, password, id
  end

  def username
    @username
  end

  def password
    @password
  end

end


class Patient < Person

  attr_reader :name, :username, :password, :condition

  def initialize(name, username, password, condition, id)
    super(name, username, password, id)
    @condition, @clearance = condition, 2
  end




end


class Employees < Person

  attr_reader :name, :username, :password, :condition

  def initialize(name, username, password)
    @name, @username, @password, @clearance = name, username, password, condition, 2
  end

end


class Doctor < Employees
  @clearance = 1
end


class Admin < Employees
  @clearance = 0
end


# =>
########################################################


class UserInterface

  def initialize(hospital)
    @hospital = hospital
    @username = ""
    @password = ""

    welcome
  end


  def welcome
      puts "Welcome to #{@hospital.name}s database interface".ljust(40)
      puts "".ljust(40,"-")
      login
  end


  def login
    while true
      puts "Please enter your username or enter 'exit'"
      print ">"
      @username = gets.chomp
      #puts @username
      break if username_check
      break if @username == "exit"
    end
    while true
      break if @username == "exit"
      puts "Please enter your password or enter 'exit'"
      print ">"
      @password = gets.chomp
      #puts @password.gsub(/./,"*")
      break if password_check
      break if @password == "exit"
    end
    select_screen
  end


  def username_check
    array = (@hospital.patients+@hospital.employees).map{|user| user.username}
    array.include?(@username) ? true : false
  end


  def password_check
    array = (@hospital.patients+@hospital.employees)
    array.each{|user| return user.username == @username && user.password == @password}
  end

  # def clearance_setter
  #     array = (@hospital.patients+@hospital.employees)
  #     array.



  def select_screen
    prompt =
    """
    Please select one of the following options:
    ------------------------------------------
    > 'ls p' to list all patients
    > 'ls d' to list all doctors
    > 'ap'   add patient
    > 'rp'   remove patient
    > 'ad'   add doctor
    > 'rd'   remove doctor
    ------------------------------------------

    """
    puts prompt
    print ">"
    selection = gets.chomp
    list_patients if selection == "ls p"
    add_patient if selection == "ap"
    remove_patient if selection == "rp"
  end


  def list_patients
    @hospital.patients.each{|patient| puts "ID: #{patient.id} || name: #{patient.name} || username: #{patient.username} || password: #{patient.password} || condition: #{patient.condition}"}
    select_screen
  end


  def add_patient
    puts "Patient add screen:"
    puts "please specify patients name:"
    print ">"
    patient_name = gets.chomp
    puts "please specify patients username:"
    print ">"
    patient_username = gets.chomp
    puts "please specify patients password:"
    print ">"
    patient_password = gets.chomp
    puts "please specify patients condition:"
    print ">"
    patient_condition = gets.chomp

    id = @hospital.patients.size

    @hospital.patients << id = Patient.new(patient_name, patient_username, patient_password, patient_condition, id)
    puts "name: #{patient_name} || username: #{patient_username} || password: #{patient_password} || patients condition: #{patient_condition}"
    select_screen
  end

  def remove_patient
    puts "Patient remove screen:"
    puts "please specify patients ID:"
    print ">"
    patient_id = gets.chomp.to_i
    @hospital.patients do |patient|
      if @hospital.patients.id == patient_id
        @hospital.patients.delete_at(patient)
      end
    end
    puts "patient removed"
    select_screen
  end
end


sf_central = Hospital.new("SF Central", "San Francisco")
sf_central.employees << admin = Admin.new("Ferdi Cam", "admin", "12345")
sf_central_mainframe = UserInterface.new(sf_central)