tracker.rb

#!/user/bin/env ruby
require "csv"
class Tracker
  attr_reader :balance

  def initialize
    @balance = 0
    @income = 0
    @expenses = 0
    @overdraft = 0
    @overdraft_summary = []
  end

  def read_in
    array_of_trans = CSV.read('transactions.csv')
    array_of_trans.each_with_index do |row, i|
      next if i == 0
      calculate(row)
    end
    summary
    overdraft_summary
  end

  def calculate(row)
    balance(row)
    total_expense(row)
    total_income(row)
  end

  def balance(row)
    @balance += row[1].to_i
    row << @balance
    fee(row) if @balance < 0
  end

  def fee(row)
    @balance -= 20
    @overdraft += 20
    @overdraft_summary << row
  end

  def total_income(row)
    @income += row[1].to_i if row[1].to_i > 0
  end

  def total_expense(row)
    @expenses += row[1].to_i if row[1].to_i < 0
  end

  def summary
    puts "Ending Balance: #{@balance}"
    puts "Total Income: #{@income}"
    puts "Total Expenses: #{@expenses}"
    puts "Total Overdfrat Charges: #{@overdraft}"
  end

  def overdraft_summary
    puts "\nOverdrafts (balance, expense, description, date)"
    @overdraft_summary.each do |transaction|
      puts "#{transaction.last}, #{transaction[1]}, #{transaction[2]}, #{transaction.first}"
    end
  end
end

new = Tracker.new.read_in

transactions.csv