main.rb

# main.rb
require_relative 'app'

def main_menu
  puts '------------------------'
  puts 'Welcome to the Library!'
  puts '------------------------'
  puts 'Please choose an option:'
  puts '1. List all books'
  puts '2. List all people'
  puts '3. Create a person'
  puts '4. Create a book'
  puts '5. Create a rental'
  puts '6. List rentals for a person'
  puts '7. Quit'
  print 'Enter your choice: '
  gets.chomp.to_i
end

def create_person(app)
  print 'Enter name: '
  name = gets.chomp
  print 'Enter age: '
  age = gets.chomp.to_i
  print 'Enter person type (teacher or student): '
  type = gets.chomp.downcase
  if type == 'teacher'
    print 'Enter specialization: '
    specialization = gets.chomp
    app.create_person(name, age, type, specialization)
  elsif type == 'student'
    app.create_person(name, age, type)
  else
    puts 'Invalid person type.'
  end
end

def create_book(app)
  print 'Enter book title: '
  title = gets.chomp
  print 'Enter book author: '
  author = gets.chomp
  app.create_book(title, author)
end

def create_rental(app)
  app.create_rental
end

def list_rentals(app)
  print 'Enter person ID: '
  person_id = gets.chomp.to_i
  app.list_rentals_for_person(person_id)
end

# rubocop:disable Metrics/CyclomaticComplexity
def main
  app = App.new

  loop do
    choice = main_menu

    case choice
    when 1
      app.list_books
    when 2
      app.list_people
    when 3
      create_person(app)
    when 4
      create_book(app)
    when 5
      create_rental(app)
    when 6
      list_rentals(app)
    when 7
      puts 'Goodbye!'
      break
    else
      puts 'Invalid choice. Please try again.'
    end
  end
end
# rubocop:enable Metrics/CyclomaticComplexity

# Call the main method to start the app
main