Return unknown operation_details in parser

README.md

@@ -33,8 +33,9 @@ gem 'cfonb'
 Below is the list of additional details available for each operation.
 
 These details can be accessed through `operation.details`, which will provide all the attributes. To fetch a specific attribute, you can use `operation.details.attribute`. For example, `operation.details.unstructured_label`. Ultimately, you can also access the 70 characters of the detail by using its code like `operation.details.mmo`
+All unmapped details can be accessed via `details.unknown` which will return the codes and the corresponding line details.
 
-If you encounter new ones, please open an issue or a pull request with the appropriate implementation.
+If you encounter new and relevant ones, please open an issue or a pull request with the appropriate implementation.
 We aimed at making it as easy as possible to add new details. You just need to do the following on initialization:
 
 ```ruby

cfonb.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name                       = 'cfonb'
-  s.version                    = '1.0.1'
+  s.version                    = '1.1.1'
   s.required_ruby_version      = '>= 3.2'
   s.summary                    = 'CFONB parser'
   s.description                = 'An easy to use CFONB format parser'

lib/cfonb.rb

@@ -32,6 +32,7 @@
 require_relative 'cfonb/operation_details/ibe'
 require_relative 'cfonb/operation_details/npo'
 require_relative 'cfonb/operation_details/nbu'
+require_relative 'cfonb/operation_details/unknown'
 
 module CFONB
   def self.parse(input, optimistic: false)

lib/cfonb/operation_details.rb

@@ -15,7 +15,9 @@ def self.register(code, klass)
     end
 
     def self.for(line)
-      @details[line.detail_code]
+      return unless line.respond_to?(:detail_code)
+
+      @details[line.detail_code] || Unknown
     end
   end
 end

lib/cfonb/operation_details/base.rb

@@ -7,10 +7,23 @@ def self.inherited(base)
         base.singleton_class.prepend(
           Module.new do
             def apply(details, line)
-              details.instance_variable_set(:"@#{line.detail_code}", line.detail)
+              code = :"@#{line.detail_code}"
+              details.instance_variable_set(code, instance_value(details, line, code))
 
               super
             end
+
+            private
+
+            def append_detail?(details, line, code)
+              details.instance_variable_defined?(code) && line.detail.is_a?(String)
+            end
+
+            def instance_value(details, line, code)
+              return line.detail unless append_detail?(details, line, code)
+
+              details.instance_variable_get(code) + "\n#{line.detail}"
+            end
           end,
         )
       end

lib/cfonb/operation_details/unknown.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module CFONB
+  module OperationDetails
+    class Unknown < Base
+      ATTRIBUTES = %i[unknown].freeze
+
+      def self.apply(details, line)
+        details.unknown ||= {}
+        code = line.detail_code
+
+        details.unknown[code] =
+          if details.unknown[code] && line.detail.is_a?(String)
+            details.unknown[code] + "\n#{line.detail}"
+          else
+            line.detail
+          end
+      end
+
+      CFONB::OperationDetails.register('Unknown', self)
+    end
+  end
+end

spec/cfonb/operation_spec.rb

@@ -272,6 +272,29 @@
         expect(operation.details.ultimate_creditor).to eq('Patrick')
       end
     end
+
+    context 'with an unknown detail' do
+      let(:detail) do
+        OpenStruct.new(
+          body: '0530004411001871EUR2 0001016255614090823     AAAEUR200000000000740',
+          detail_code: 'AAA',
+          detail: 'EUR200000000000740',
+        )
+      end
+
+      it 'adds the detail to the unknown details hash' do
+        operation.merge_detail(detail)
+
+        expect(operation.details.unknown).to eq({ 'AAA' => 'EUR200000000000740' })
+      end
+
+      it 'updates the current details in case of duplicated codes' do
+        operation.merge_detail(detail)
+        operation.merge_detail(detail)
+
+        expect(operation.details.unknown).to eq({ 'AAA' => "EUR200000000000740\nEUR200000000000740" })
+      end
+    end
   end
 
   describe '#type_code' do

spec/cfonb/parser_spec.rb

@@ -43,12 +43,17 @@
           reference: '',
         )
         expect(statements[0].operations[0].details).to have_attributes(
-          free_label: 'MENSUEAUHTR13133',
+          free_label: "MENSUEAUHTR13133\nMENSUEAUHTR13DUP",
           original_currency: nil,
           original_amount: nil,
           exchange_rate: nil,
           purpose: 'PURPOSE',
           debtor: 'INTERNET SFR',
+          unknown: {
+            'AAA' => "INTERNETA AAA\nINTERNETA ABB",
+            'BBB' => 'INTERNETE BBB',
+            'CCC' => 'INTERNETI CCC',
+          },
         )
 
         expect(statements[0].operations[1]).to have_attributes(
@@ -272,7 +277,7 @@
 
           expect(statements[0].operations[0].details).to have_attributes(
             operation_reference: 'REFERENCE',
-            free_label: 'MENSUEAUHTR13133',
+            free_label: "MENSUEAUHTR13133\nMENSUEAUHTR13DUP",
             debtor: 'INTERNET SFR',
             client_reference: 'OTHER REFERENCE',
             original_currency: nil,
@@ -705,7 +710,7 @@
           expect(operation.details).to have_attributes(
             operation_reference: 'REFERENCE',
             client_reference: 'OTHER REFERENCE',
-            free_label: "MENSUEAUHTR13133\nP051928612   22793301700040",
+            free_label: "MENSUEAUHTR13133\nMENSUEAUHTR13DUP\nP051928612   22793301700040",
             debtor: 'ELEC ERDF',
             original_currency: nil,
             original_amount: nil,

spec/files/example.txt

@@ -2,9 +2,14 @@
 
 0415589916200000EUR2 98765432100B1160519  160519PRLV SEPA TEST CABINET           0000000000000000000322J                
 0515589916200000EUR2 98765432100B1160519     LIBMENSUEAUHTR13133                                                        
+0515589916200000EUR2 98765432100B1160519     LIBMENSUEAUHTR13DUP                                                        
 0515589916200000EUR2 98765432100B1160519     REFREFERENCE                                                               
 0515589916200000EUR2 98765432100B1160519     RCNOTHER REFERENCE                    PURPOSE                              
 0515589916200000EUR2 98765432100B1160519     NPYINTERNET SFR                                                            
+0515589916200000EUR2 98765432100B1160519     AAAINTERNETA AAA                                                           
+0515589916200000EUR2 98765432100B1160519     AAAINTERNETA ABB                                                           
+0515589916200000EUR2 98765432100B1160519     BBBINTERNETE BBB                                                           
+0515589916200000EUR2 98765432100B1160519     CCCINTERNETI CCC                                                           
 
 0415589916200000EUR2 98765432100B1160519  160519VIR  SEPA DEMONSTRATION          0000000000000000000107}REFERENCE       
 0515589916200000EUR2 98765432100B1160519     NPYELEC ERDF