Improve BigBank PDF Importer (#4513)

Add support for interest transaction "Zinsgutschrift"

name.abuchen.portfolio.tests/src/name/abuchen/portfolio/datatransfer/pdf/bigbank/BigbankPDFExtractorTest.java

@@ -5,6 +5,7 @@
 import static name.abuchen.portfolio.datatransfer.ExtractorMatchers.hasDate;
 import static name.abuchen.portfolio.datatransfer.ExtractorMatchers.hasNote;
 import static name.abuchen.portfolio.datatransfer.ExtractorMatchers.hasSource;
+import static name.abuchen.portfolio.datatransfer.ExtractorMatchers.interest;
 import static name.abuchen.portfolio.datatransfer.ExtractorMatchers.removal;
 import static name.abuchen.portfolio.datatransfer.ExtractorTestUtilities.countAccountTransactions;
 import static name.abuchen.portfolio.datatransfer.ExtractorTestUtilities.countBuySell;
@@ -90,4 +91,25 @@ public void testKontoauszug02()
         assertThat(results, hasItem(removal(hasDate("2024-03-28"), hasAmount("EUR", 3500.00), //
                         hasSource("Kontoauszug02.txt"), hasNote(null))));
     }
+
+    @Test
+    public void testKontoauszug03()
+    {
+        BigbankPDFExtractor extractor = new BigbankPDFExtractor(new Client());
+
+        List<Exception> errors = new ArrayList<>();
+
+        List<Item> results = extractor.extract(PDFInputFile.loadTestCase(getClass(), "Kontoauszug03.txt"), errors);
+
+        assertThat(errors, empty());
+        assertThat(countSecurities(results), is(0L));
+        assertThat(countBuySell(results), is(0L));
+        assertThat(countAccountTransactions(results), is(1L));
+        assertThat(results.size(), is(1));
+        new AssertImportActions().check(results, CurrencyUnit.EUR);
+
+        // assert transaction
+        assertThat(results, hasItem(interest(hasDate("2024-12-31"), hasAmount("EUR", 99.01), //
+                        hasSource("Kontoauszug03.txt"), hasNote(null))));
+    }
 }

name.abuchen.portfolio.tests/src/name/abuchen/portfolio/datatransfer/pdf/bigbank/Kontoauszug03.txt

@@ -0,0 +1,31 @@
+```
+PDFBox Version: 3.0.3 != 1.8.17
+Portfolio Performance Version: 0.74.0
+System: win32 | x86_64 | 21.0.5+11-LTS | Azul Systems, Inc.
+-----------------------------------------
+
+30.01.2025
+SxLm xsCrPa DnuCCBpQY
+nhCgNxTQJpkTacKQ 30
+6717 WkqT
+nRIffyzcUp
+Tagesgeldvertrag SD-ATC-36285392
+Kontoauszug von 01.12.2024 bis 31.12.2024
+IBAN: EE123456789101112131
+Anfangssaldo 01.12.2024 163,98
+Datum Gegenkonto Buchung Name  Betrag in EUR
+31.12.2024  Zinsgutschrift  +99,01
+Endsaldo 31.12.2024 262,99
+Anfangssaldo 01.12.2024 163,98
+Summe Belastungen -0,00
+Summe Gutschriften +99,01
+Endsaldo 31.12.2024 262,99
+Dies ist ein automatisch generierter Kontoauszug.
+BIGBANK AS Telefon 0810 900 629
+Riia 2, Tartu E-mail kundenservice@bigbank.at
+64967 Reg. Nr. 81505659
+www.bigbank.at VAT. Nr. FG349272663
+1 / 1
+Powered by PDF Generator API
+
+```

name.abuchen.portfolio/src/name/abuchen/portfolio/datatransfer/pdf/BigbankPDFExtractor.java

@@ -88,6 +88,30 @@ private void addAccountStatementTransaction()
                             t.setCurrencyCode(v.get("currency"));
                         })
 
+                        .wrap(TransactionItem::new));
+
+        // @formatter:off
+        // 31.12.2024  Zinsgutschrift  +99,01
+        // @formatter:on
+        Block interestBlock = new Block("^[\\d]{2}\\.[\\d]{2}\\.[\\d]{4}.*Zinsgutschrift.* \\+[\\.,\\d\\s]+$");
+        type.addBlock(interestBlock);
+        interestBlock.set(new Transaction<AccountTransaction>()
+
+                        .subject(() -> {
+                            AccountTransaction accountTransaction = new AccountTransaction();
+                            accountTransaction.setType(AccountTransaction.Type.INTEREST);
+                            return accountTransaction;
+                        })
+
+                        .section("date", "amount") //
+                        .documentContext("currency") //
+                        .match("^(?<date>[\\d]{2}\\.[\\d]{2}\\.[\\d]{4}).*Zinsgutschrift.* \\+(?<amount>[\\.,\\d\\s]+)$") //
+                        .assign((t, v) -> {
+                            t.setDateTime(asDate(v.get("date")));
+                            t.setAmount(asAmount(v.get("amount")));
+                            t.setCurrencyCode(v.get("currency"));
+                        })
+
                         .wrap(TransactionItem::new));
     }