Payment csv merger

gistfile1.rb

payments = SmarterCSV.process('paypal1.csv', {  col_sep: ";"  })

File.open("paypal_payments.csv", 'w+') { |file|
  file.write("status;email;transaction_id;country;country_code\n")
}

payments.each do |payment|
  country_code = ISO3166::Country.find_country_by_name(payment[:country])&.alpha2

  File.open("paypal_payments.csv", 'a') { |file|
    file.write("#{payment[:status]};#{payment[:from_email_address]};#{payment[:transaction_id]};#{payment[:country]};#{country_code}\n")
  }
end

payments2 = SmarterCSV.process('paypal2.csv', {  col_sep: ","  })

payments2.each do |payment|

  File.open("paypal_payments.csv", 'a') { |file|
    file.write("#{payment[:status]};#{payment[:email]};#{payment[:transaction_id]};#{payment[:country]};#{payment[:country_code]}\n")
  }
end