srp.rb

#Violation of the Single Responsibility Principle in Ruby
class FinancialReportMailer
  def initialize(transactions, account)
    @transactions = transactions
    @account = account
    @report = ''
  end

  def generate_report
    @report = "Full Transaction History -> #{@transactions}"
  end

  def send_report
    p "send report #{@report} to #{@account['email']}"
  end
end

transactions = [{'name' => 'Femi', 'amount' => 2222}, {'name' => 'Medale', 'amount' => 40000}]
account = {'email' => '[email protected]'}

mailer = FinancialReportMailer.new(transactions, account)
mailer.generate_report
mailer.send_report


# Correct use of the Single Responsibility Principle in Ruby
class FinancialReportMailer
  def initialize(report, account)
    @report = report
    @account = account
  end

  def deliver
    p "send report #{@report} to #{@account['email']}"
  end
end

class FinancialReportGenerator
  def initialize(transactions)
    @transactions = transactions
  end

  def generate
    "Full Transaction History -> #{@transactions}"
  end
end

transactions = [{'name' => 'Femi', 'amount' => 2222}, {'name' => 'Medale', 'amount' => 40000}]
account = {'email' => '[email protected]'}
report = FinancialReportGenerator.new(transactions).generate
FinancialReportMailer.new(report, account).deliver