Class: Croatia::Fiscalizer

Inherits:
Object
  • Object
show all
Defined in:
lib/croatia/fiscalizer.rb

Defined Under Namespace

Modules: XMLBuilder

Constant Summary collapse

TZ = 
TZInfo::Timezone.get("Europe/Zagreb")
QR_CODE_BASE_URL = 
"https://porezna.gov.hr/rn"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(certificate: nil, password: nil) ⇒ Fiscalizer

Returns a new instance of Fiscalizer.



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# File 'lib/croatia/fiscalizer.rb', line 17

def initialize(certificate: nil, password: nil)
  certificate ||= Croatia.config.fiscalization[:certificate]
  password ||= Croatia.config.fiscalization[:password]

  @certificate = load_certificate(certificate, password)
end

Instance Attribute Details

#certificate ⇒ Object (readonly)

Returns the value of attribute certificate.



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# File 'lib/croatia/fiscalizer.rb', line 15

def certificate
  @certificate
end

Instance Method Details

#fiscalize(invoice:, message_id: SecureRandom.uuid) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/croatia/fiscalizer.rb', line 24

def fiscalize(invoice:, message_id: SecureRandom.uuid)
  _document = XMLBuilder.invoice_request(invoice: invoice, message_id: message_id, timezone: TZ)
  raise NotImplementedError, "Fiscalization XML generation is not implemented yet"
end

#generate_issuer_protection_code(invoice) ⇒ Object 



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# File 'lib/croatia/fiscalizer.rb', line 29

def generate_issuer_protection_code(invoice)
  buffer = []
  buffer << invoice.issuer.pin
  buffer << TZ.to_local(invoice.issue_date).strftime("%d.%m.%Y %H:%M:%S")
  buffer << invoice.sequential_number
  buffer << invoice.business_location_identifier
  buffer << invoice.register_identifier
  buffer << invoice.total.to_f

  digest = OpenSSL::Digest::SHA1.new
  signature = certificate.sign(digest, buffer.join)

  Digest::MD5.hexdigest(signature).downcase
end

#generate_verification_qr_code(invoice) ⇒ Object 



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# File 'lib/croatia/fiscalizer.rb', line 44

def generate_verification_qr_code(invoice)
  Croatia::QRCode.ensure_supported!

  params = {
    datv: TZ.to_local(invoice.issue_date).strftime("%Y%m%d_%H%M"),
    izn: invoice.total_cents.to_s
  }

  if params[:izn].length > 10
    raise ArgumentError, "Total amount exceeds 10 digits: #{params[:izn]}"
  end

  if invoice.unique_invoice_identifier
    params[:jir] = invoice.unique_invoice_identifier
  else
    params[:zki] = generate_issuer_protection_code(invoice)
  end

  if params[:jir].nil? && params[:zki].nil?
    raise ArgumentError, "Either unique_invoice_identifier or issuer_protection_code must be provided"
  end

  query_string = URI.encode_www_form(params)
  url = "#{QR_CODE_BASE_URL}?#{query_string}"

  Croatia::QRCode.new(url)
end