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# Lab 2
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> "И тут я обнаружил что случайно сделал 3-5 задачи в 1-2"
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require_relative 'person'
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class Student < Person
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attr_accessor :surname, :name, :patronymic
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def initialize(args = {})
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super(args)
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@surname = args.fetch(:surname)
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raise ArgumentError, "Invalid surname format: #{@surname}" unless self.class.valid_name?(@surname)
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@name = args.fetch(:name)
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raise ArgumentError, "Invalid name format: #{@name}" unless self.class.valid_name?(@name)
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@patronymic = args.fetch(:patronymic)
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raise ArgumentError, "Invalid patronymic format: #{@patronymic}" unless self.class.valid_name?(@patronymic)
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set_contacts(
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phone: args[:phone],
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telegram: args[:telegram],
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email: args[:email]
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)
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end
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def self.from_string(student_string)
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parts = student_string.split('|').map(&:strip)
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surname, name, patronymic = parts[0].split(' ')
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id = parts[1].split(': ').last.to_i
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phone = parts[2].split(': ').last
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telegram = parts[3].split(': ').last
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email = parts[4].split(': ').last
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git = parts[5].split(': ').last
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new(
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surname: surname,
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name: name,
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patronymic: patronymic,
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id: id,
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phone: phone,
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telegram: telegram,
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email: email,
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git: git
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)
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end
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def self.read_from_txt(file_path)
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raise IOError, "File path is invalid or file does not exist: #{file_path}" unless File.exist?(file_path)
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students = []
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File.foreach(file_path) do |line|
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line.strip!
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next if line.empty?
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begin
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student = from_string(line)
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students << student
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rescue ArgumentError => e
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puts "Error processing line: '#{line}'. Reason: #{e.message}"
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end
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end
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students
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end
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def self.write_to_txt(file_path, students)
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raise ArgumentError, "Expected an array of Student objects" unless students.is_a?(Array) && students.all? { |s| s.is_a?(Student) }
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File.open(file_path, 'w') do |file|
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students.each do |student|
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file.puts student.to_s
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end
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end
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puts "Data successfully written to #{file_path}"
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rescue IOError => e
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puts "An error occurred while writing to the file: #{e.message}"
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end
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def surname_and_initials
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"#{@surname} #{name[0]}.#{patronymic[0]}."
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end
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def to_s
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"#{@surname} #{@name} #{@patronymic} | ID: #{@id || 'N/A'} | " \
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"Phone: #{@phone || 'N/A'} | Telegram: #{@telegram || 'N/A'} | " \
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"Email: #{@email || 'N/A'} | Git: #{@git || 'N/A'}"
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end
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def get_info
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"#{surname_and_initials}, Git: #{git_info}, Contact: #{contact_info}"
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end
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end
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@ -1,31 +0,0 @@
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require_relative 'person'
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class StudentShort < Person
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attr_reader :surname_initials, :contact
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def initialize(student)
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super(id: student.id, git: student.git_info)
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@surname_initials = student.surname_and_initials
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@contact = student.contact_info
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end
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def self.from_string(id, info_string)
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parts = info_string.split(', ').map(&:strip)
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surname_initials = parts[0]
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git = parts[1].split(': ').last
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contact = parts[2].split(': ').last
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new_instance = allocate
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new_instance.send(:initialize_from_data, id, surname_initials, git, contact)
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new_instance
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end
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private
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def initialize_from_data(id, surname_initials, git, contact)
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@id = id
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@surname_initials = surname_initials
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@git = git
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@contact = contact
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end
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end
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