From dab67cc213aeb15f6a7a3bcc857b8f2feac82b8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Walleb=C3=A4ck?= <bjorn@memaking.se>
Date: Wed, 20 Mar 2024 23:11:26 +0100
Subject: [PATCH 1/3] feat: add 'SEB Kort Bank AB' credit card support

---
 src/app-gocardless/bank-factory.js           |  2 +
 src/app-gocardless/banks/seb-kort-bank-ab.js | 62 ++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 src/app-gocardless/banks/seb-kort-bank-ab.js

diff --git a/src/app-gocardless/bank-factory.js b/src/app-gocardless/bank-factory.js
index 42bc1384d..dc8a6603c 100644
--- a/src/app-gocardless/bank-factory.js
+++ b/src/app-gocardless/bank-factory.js
@@ -11,6 +11,7 @@ import SparNordSpNoDK22 from './banks/sparnord-spnodk22.js';
 import Belfius from './banks/belfius_gkccbebb.js';
 import SpkMarburgBiedenkopfHeladef1mar from './banks/spk-marburg-biedenkopf-heladef1mar.js';
 import SEBPrivat from './banks/seb-privat.js';
+import SEBKortBankAB from './banks/seb-kort-bank-ab.js';
 
 const banks = [
   AmericanExpressAesudef1,
@@ -25,6 +26,7 @@ const banks = [
   Belfius,
   SpkMarburgBiedenkopfHeladef1mar,
   SEBPrivat,
+  SEBKortBankAB,
 ];
 
 export default (institutionId) =>
diff --git a/src/app-gocardless/banks/seb-kort-bank-ab.js b/src/app-gocardless/banks/seb-kort-bank-ab.js
new file mode 100644
index 000000000..136ccaaaf
--- /dev/null
+++ b/src/app-gocardless/banks/seb-kort-bank-ab.js
@@ -0,0 +1,62 @@
+import {
+  printIban,
+  amountToInteger,
+  sortByBookingDateOrValueDate,
+} from '../utils.js';
+
+/** @type {import('./bank.interface.js').IBank} */
+export default {
+  institutionIds: ['SEB_KORT_AB_SE_SKHSFI21'],
+
+  normalizeAccount(account) {
+    return {
+      account_id: account.id,
+      institution: account.institution,
+      mask: account.iban.slice(-4),
+      iban: account.iban,
+      name: [account.name, printIban(account)].join(' '),
+      official_name: account.product,
+      type: 'checking',
+    };
+  },
+
+  /**
+   * Sign of transaction amount needs to be flipped for SEB credit cards
+   */
+  normalizeTransaction(transaction, _booked) {
+    return {
+      ...transaction,
+      // Creditor name is stored in additionInformation for SEB
+      creditorName: transaction.additionalInformation,
+      date: transaction.valueDate,
+      transactionAmount: {
+        // Flip transaction amount sign
+        amount: (-parseFloat(transaction.transactionAmount.amount)).toString(),
+        currency: transaction.transactionAmount.currency,
+      },
+    };
+  },
+
+  sortTransactions(transactions = []) {
+    return sortByBookingDateOrValueDate(transactions);
+  },
+
+  /**
+   *  For SEB_KORT_AB_SE_SKHSFI21 we don't know what balance was
+   *  after each transaction so we have to calculate it by getting
+   *  current balance from the account and subtract all the transactions
+   *
+   *  As a current balance we use `expected` balance type because it
+   *  corresponds to the current running balance, whereas `interimAvailable`
+   *  holds the remaining credit limit.
+   */
+  calculateStartingBalance(sortedTransactions = [], balances = []) {
+    const currentBalance = balances.find(
+      (balance) => 'expected' === balance.balanceType,
+    );
+
+    return sortedTransactions.reduce((total, trans) => {
+      return total - amountToInteger(trans.transactionAmount.amount);
+    }, amountToInteger(currentBalance.balanceAmount.amount));
+  },
+};

From 007d1356ac495c8cdf094b8aae69262a7dec2e79 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Walleb=C3=A4ck?= <bjorn@memaking.se>
Date: Thu, 21 Mar 2024 00:06:51 +0100
Subject: [PATCH 2/3] add: release notes for #325

---
 upcoming-release-notes/325.md | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 upcoming-release-notes/325.md

diff --git a/upcoming-release-notes/325.md b/upcoming-release-notes/325.md
new file mode 100644
index 000000000..9fce80f4e
--- /dev/null
+++ b/upcoming-release-notes/325.md
@@ -0,0 +1,6 @@
+---
+category: Features
+authors: [walleb]
+---
+
+Add custom bank adapter for 'SEB Kort Bank AB' to properly sync credit card transactions.
\ No newline at end of file

From b5a8ff51dc8575d34c7974abc034311b09600e0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Walleb=C3=A4ck?= <bjorn@memaking.se>
Date: Sat, 23 Mar 2024 07:39:39 +0100
Subject: [PATCH 3/3] Calculate balance correctly for SEB Kort credit cards

---
 src/app-gocardless/banks/seb-kort-bank-ab.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/app-gocardless/banks/seb-kort-bank-ab.js b/src/app-gocardless/banks/seb-kort-bank-ab.js
index 136ccaaaf..cc9efbed9 100644
--- a/src/app-gocardless/banks/seb-kort-bank-ab.js
+++ b/src/app-gocardless/banks/seb-kort-bank-ab.js
@@ -57,6 +57,6 @@ export default {
 
     return sortedTransactions.reduce((total, trans) => {
       return total - amountToInteger(trans.transactionAmount.amount);
-    }, amountToInteger(currentBalance.balanceAmount.amount));
+    }, -amountToInteger(currentBalance.balanceAmount.amount));
   },
 };