contact_list

contact.csv

contact.rb

require 'csv'

# Represents a person in an address book.
# The ContactList class will work with Contact objects instead of interacting with the CSV file directly



class Contact

  CONTACT_LIST = ('./contact.csv')

  attr_accessor :id, :name, :email 
  
  # Creates a new contact object
  # @param name [String] The contact's name
  # @param email [String] The contact's email address
  def initialize(id, name, email)
    # TODO: Assign parameter values to instance variables.
    @id = id
    @name = name
    @email = email
  end

  # Provides functionality for managing contacts in the csv file.
  class << self

    # Opens 'contacts.csv' and creates a Contact object for each line in the file (aka each contact).
    # @return [Array<Contact>] Array of Contact objects
    def all
      # TODO: Return an Array of Contact instances made from the data in 'contacts.csv'.
      total_ids = 0
      CSV.foreach(CONTACT_LIST) do |row| 
        id = row[0]
        name = row[1] 
        email = row[2]
        total_ids += 1

        puts "#{id}: #{name} (#{email})"
        
      end
      puts "---"
      puts "#{total_ids} records total"
    end

    # Creates a new contact, adding it to the csv file, returning the new contact.
    # @param name [String] the new contact's name
    # @param email [String] the contact's email
    def create(name, email)
      # TODO: Instantiate a Contact, add its data to the 'contacts.csv' file, and return it
      File.open(CONTACT_LIST, 'a+') do |list|
        id = list.readlines.size
        list << "#{(id + 1).to_s},#{name},#{email}\n"
        puts "Contact succesfully created"
      end
    end
    
    # Find the Contact in the 'contacts.csv' file with the matching id.
    # @param id [Integer] the contact id
    # @return [Contact, nil] the contact with the specified id. If no contact has the id, returns nil.
    def find(id_in)
      # TODO: Find the Contact in the 'contacts.csv' file with the matching id.W
      message = "not found"
      CSV.foreach(CONTACT_LIST) do |row|
        id = row[0]
        name = row[1]
        email = row[2]

        if id_in == id
         message = "#{id}: #{name} (#{email})"
        end
      end
      puts message
    end

    # Search for contacts by either name or email.
    # @param term [String] the name fragment or email fragment to search for
    # @return [Array<Contact>] Array of Contact objects.
    def search(term)
      # TODO: Select the Contact instances from the 'contacts.csv' file whose name or email attributes contain the search term.
      total_ids = 0
      CSV.foreach(CONTACT_LIST) do |row|
        id = row[0]
        name = row[1].downcase
        email = row[2].downcase

        if /#{term}/ix.match(name) || /#{term}/ix.match(email)
         puts "#{id}: #{name} (#{email})"
         total_ids += 1
       end
     end
     puts "---"
     puts "#{total_ids} records total"
   end
  end
end

contact_list.rb

require_relative './contact'


# Interfaces between a user and their contact list. Reads from and writes to standard I/O.
# class ContactList

def search_name_email(term)
  Contact.search(term)
end

def find_by_id(id)
  Contact.find(id)
end

def show_all_contact 
  Contact.all
end 


def create_contact(name, email)
  Contact.create(name, email)
end



if ARGV == []
  puts "Here is a list of available commands"
  puts "new - Create a new contact"
  puts "list - List all contacts"
  puts "show - Search contacts"
elsif ARGV[0] == "list" 
  if ARGV[1] 
    puts "show single contact"
  else
    p show_all_contact
  end
elsif ARGV[0] == "new"
  print "Enter first name and last name of the contact you would like to enter:"
  name = STDIN.gets.chomp 
  print "Enter email address of the contact you would like to enter:"
  email = STDIN.gets.chomp
  create_contact(name, email)
elsif ARGV[0] == "show" 
  puts "Enter the ID of the person you would like to seach for:"
  id = STDIN.gets.chomp
  find_by_id(id)
elsif ARGV[0] == "search"
  term = ARGV[1]
  search_name_email(term)
end