Aba

require 'aba'

# Initialise ABA
aba = Aba.batch(
  bsb: "123-345", # Optional (Not required by NAB)
  financial_institution: "WPC",
  user_name: "John Doe",
  user_id: "466364",
  description: "Payroll",
  process_at: Time.now.strftime("%d%m%y")
)

# Add transactions...
10.times do
  aba.add_transaction(
    {
      bsb: "342-342",
      account_number: "3244654",
      amount: 10000, # Amount in cents
      account_name: "John Doe",
      transaction_code: 53,
      lodgement_reference: "R435564",
      trace_bsb: "453-543",
      trace_account_number: "45656733",
      name_of_remitter: "Remitter"
    }
  )
end

# ...or add returns
10.times do
  aba.add_return(
    {
        bsb: '453-543',
        account_number: '45656733',
        amount: 10000,
        account_name: 'John Doe',
        transaction_code: 53,
        lodgement_reference: 'R435564',
        trace_bsb: '342-342',
        trace_account_number: '3244654',
        name_of_remitter: 'Remitter',
        return_code: 8, 
        original_user_id: 654321,
        original_processing_day: 12,
    }
  )
end

puts aba.to_s # View output
File.write("/Users/me/dd_#{Time.now.to_i}.aba", aba.to_s) # or write output to file

# Transactions added to the defined ABA object variable
aba = Aba.batch financial_institution: 'ANZ', user_name: 'Joe Blow', user_id: 123456, process_at: 200615
aba.add_transaction bsb: '123-456', account_number: '000-123-456', amount: 50000, transaction_code: 50
aba.add_transaction bsb: '456-789', account_number: '123-456-789', amount: 10000, transaction_code: 13

# Transactions passed individually inside a block
aba = Aba.batch financial_institution: 'ANZ', user_name: 'Joe Blow', user_id: 123456, process_at: 200615 do |a|
  a.add_transaction bsb: '123-456', account_number: '000-123-456', amount: 50000, transaction_code: 50
  a.add_transaction bsb: '456-789', account_number: '123-456-789', amount: 10000, transaction_code: 13
end

# Transactions as an array passed to the second param of Aba.batch
aba = Aba.batch(
  { financial_institution: 'ANZ', user_name: 'Joe Blow', user_id: 123456, process_at: 200615 },
  [
    { bsb: '123-456', account_number: '000-123-456', amount: 50000, transaction_code: 50 },
    { bsb: '456-789', account_number: '123-456-789', amount: 10000, transaction_code: 13 }
  ]
)

# Create an ABA object with invalid character in the user_name
aba = Aba.batch(
  financial_institution: "ANZ",
  user_name: "Jøhn Doe",
  user_id: "123456",
  process_at: Time.now.strftime("%d%m%y")
)

# Add a transaction with a bad BSB
aba.add_transaction(
  bsb: "abc-123",
  account_number: "000123456"
)

# Is the data valid?
aba.valid?
# Returns: false

# Return a structured array of errors
puts aba.errors
# Returns:
# {:aba => ["user_name must not contain invalid characters"],
#  :transactions =>
#   {0 => ["bsb format is incorrect", "trace_bsb format is incorrect"]}}