From 85901209dd91d38eb403751186db4e4fe24c52ed Mon Sep 17 00:00:00 2001
From: Valkov Dmitry <vdv@sveak.com>
Date: Wed, 1 Feb 2023 14:49:44 +0700
Subject: [PATCH] =?UTF-8?q?=D0=9F=D1=80=D0=B0=D0=B2=D0=BA=D0=B0=20iban-?=
 =?UTF-8?q?=D0=B3=D0=B5=D0=BD=D0=B5=D1=80=D0=B0=D1=82=D0=BE=D1=80=D0=B0?=
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---
 manifest.json                                 |  2 +-
 .../Service/Generators/IbanGenerator.ts       | 74 +++++++++++--------
 2 files changed, 45 insertions(+), 31 deletions(-)

diff --git a/manifest.json b/manifest.json
index 199cf69..dd831d8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -27,7 +27,7 @@
 	"manifest_version": 2,
 	"permissions": [ "tabs", "contextMenus", "\u003Call_urls>", "storage" ],
 	"short_name": "SVEAK helper",
-	"version": "1.0.0",
+	"version": "1.0.1",
 	"commands": {
 		"_execute_browser_action": {
 			"suggested_key": {
diff --git a/popup/src/classes/Service/Generators/IbanGenerator.ts b/popup/src/classes/Service/Generators/IbanGenerator.ts
index 4532b79..80dc280 100644
--- a/popup/src/classes/Service/Generators/IbanGenerator.ts
+++ b/popup/src/classes/Service/Generators/IbanGenerator.ts
@@ -2,16 +2,16 @@ import { Country } from '@/classes/Enum/Country'
 
 export class IbanGenerator {
   generate (country: Country) {
-    const t = this.getBankAccount(country)
-    const n = this.getNationalCheckDigit(t)
-    const r = this.getBankCode(country)
+    const shortBankAccount = this.getBankAccount(country)
+    const bankCode = this.getBankCode(country)
+    const estonianCheckDigit = this.getEstonianCheckDigit(bankCode + shortBankAccount)
     switch (country) {
       case Country.ESTONIA:
-        return country.toUpperCase() + this.getIbanCheckDigits(r + t + n + '141400') + r + t + n
+        return country.toUpperCase() + this.getIbanCheckDigits(bankCode + shortBankAccount + estonianCheckDigit + '141400') + bankCode + shortBankAccount + estonianCheckDigit
       case Country.LITHUANIA:
-        return country.toUpperCase() + this.getIbanCheckDigits(r + t + '212900') + r + t
+        return country.toUpperCase() + this.getIbanCheckDigits(bankCode + shortBankAccount + '212900') + bankCode + shortBankAccount
       default:
-        return country.toUpperCase() + this.getIbanCheckDigits(r + t + '252100') + r + t
+        return country.toUpperCase() + this.getIbanCheckDigits(bankCode + shortBankAccount + '252100') + bankCode + shortBankAccount
     }
   }
 
@@ -26,36 +26,50 @@ export class IbanGenerator {
     return t + String(i - (o % i)).padStart(2, '0')
   }
 
-  getNationalCheckDigit (e: string) {
-    const t = [7, 1, 3, 7, 1, 3, 7, 1, 3, 7, 1, 3, 7, 1, 3, 7, 1, 3, 7]
-    const n = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
-    let r = 0
-    const i = e.length
-    let o = 18
-    for (let a = i - 1; a > -1; a--) {
-      n[o] = t[o] * +e[a]
-      o--
-    }
-    o = 18
-    for (let a = i - 1; a > -1; a--) {
-      r -= -n[o]
-      o--
+  /**
+   *
+   * @param bban c 5 знака 16 символов
+   * @return одну цифру
+   */
+  getEstonianCheckDigit (bban: string) {
+    const toCheck = bban.substring(2, 15)
+    const weights = [7, 1, 3, 7, 1, 3, 7, 1, 3, 7, 1, 3, 7]
+
+    let sum = 0
+    for (let index = 0; index < toCheck.length; index++) {
+      sum += parseInt(toCheck.charAt(index), 10) * weights[index]
     }
+    const remainder = sum % 10
 
-    return String(r % 10 !== 0 ? 10 - r % 10 : 0)
-  }
+    return remainder === 0 ? 0 : 10 - remainder
+  };
 
-  getBankCode (e: Country) {
-    const t = ['16000003', '11602231', '10301612', '18900002', '15002240', '19401018', '19101152']
-    const n = ['2200', '1010', '3300', '7700', '1700', '4204']
-    const r = ['20900', '72900', '74000', '40100', '21200', '72300', '21700', '21400', '70440', '71800', '73000']
-    switch (e) {
+  getBankCode (country: Country) {
+    const plBankCodes = [
+      '16000003', // (BNPPL Centrala) BNP PARIBAS BANK POLSKA SA Centrala
+      '11602231', // Bank Millennium SA Bankowy Punkt Rozlicze Nr 4
+      '10301612', // BH Regionalne Centrum Rozliczeń
+      '18900002', // HYPO Centrala
+      '15002240', // KBSA O. w Ełku
+      '19401018', // CABP F. nr 3 we Wrocławiu
+      '19101152'
+    ]
+    const eeBankCodes = [
+      '2200', // Swedbank
+      '1010', // SEB
+      '3300', // Danske Bank A/S Eesti filiaal (Sampo Pank)
+      '7700', // LHV Pank
+      '1700', // Luminor
+      '4204' // COOP Bank
+    ]
+    const ltBankCodes = ['20900', '72900', '74000', '40100', '21200', '72300', '21700', '21400', '70440', '71800', '73000']
+    switch (country) {
       case Country.POLAND:
-        return t[Math.floor(Math.random() * t.length)]
+        return plBankCodes[Math.floor(Math.random() * plBankCodes.length)]
       case Country.ESTONIA:
-        return n[Math.floor(Math.random() * n.length)]
+        return eeBankCodes[Math.floor(Math.random() * eeBankCodes.length)]
       default:
-        return r[Math.floor(Math.random() * r.length)]
+        return ltBankCodes[Math.floor(Math.random() * ltBankCodes.length)]
     }
   }