246 lines
9.3 KiB
JavaScript
246 lines
9.3 KiB
JavaScript
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/**
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* AAMOS Bank CSV Parsers
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* Stöder: Swedbank, SEB, Handelsbanken, Nordea, auto-detect
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*/
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/**
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* Normalisera svenska siffror: "1 500,00" → 1500.00
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*/
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function parseSwedishNumber(str) {
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if (str == null || str === '') return null;
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// Ta bort mellanslagsseparatorer, ersätt komma med punkt
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const cleaned = String(str).trim().replace(/\s/g, '').replace(',', '.');
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const val = parseFloat(cleaned);
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return isNaN(val) ? null : val;
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}
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/**
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* Splitta en CSV-rad med hänsyn till citattecken
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*/
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function splitRow(line, delimiter) {
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const result = [];
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let current = '';
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let inQuotes = false;
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for (let i = 0; i < line.length; i++) {
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const ch = line[i];
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if (ch === '"') {
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inQuotes = !inQuotes;
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} else if (!inQuotes && ch === delimiter) {
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result.push(current.trim().replace(/^"|"$/g, ''));
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current = '';
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} else {
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current += ch;
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}
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}
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result.push(current.trim().replace(/^"|"$/g, ''));
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return result;
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}
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/**
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* Hitta rader (skippa tomma rader)
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*/
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function getLines(csv) {
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return csv.split('\n').map(l => l.replace(/\r$/, '')).filter(l => l.trim() !== '');
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}
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// ── Swedbank ──────────────────────────────────────────────────────────────────
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// Format: Datum;Transaktion;Kategori;Belopp;Saldo
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export function parseSwedbank(csv) {
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const lines = getLines(csv);
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const headerLine = lines[0];
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const headers = splitRow(headerLine, ';').map(h => h.trim());
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const iDatum = headers.findIndex(h => /^datum$/i.test(h));
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const iTransaktion = headers.findIndex(h => /^transaktion$/i.test(h));
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const iBelopp = headers.findIndex(h => /^belopp$/i.test(h));
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const iSaldo = headers.findIndex(h => /^saldo$/i.test(h));
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if (iDatum === -1 || iBelopp === -1) {
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throw new Error('Swedbank: saknar kolumnerna Datum och/eller Belopp');
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}
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const rows = [];
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for (let i = 1; i < lines.length; i++) {
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const cols = splitRow(lines[i], ';');
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const amount = parseSwedishNumber(cols[iBelopp]);
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if (amount == null) continue;
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rows.push({
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date: (cols[iDatum] || '').trim(),
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description: (cols[iTransaktion] || '').trim(),
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amount,
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balance: iSaldo >= 0 ? parseSwedishNumber(cols[iSaldo]) : null,
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raw: lines[i],
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});
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}
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return rows;
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}
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// ── SEB ───────────────────────────────────────────────────────────────────────
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// Format: Bokföringsdatum,Valutadatum,Namn/Beskrivning,Belopp,Saldo
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export function parseSEB(csv) {
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const lines = getLines(csv);
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const headerLine = lines[0];
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const headers = splitRow(headerLine, ',').map(h => h.trim());
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const iBokDatum = headers.findIndex(h => /bokf[öo]ringsdatum/i.test(h));
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const iNamn = headers.findIndex(h => /namn|beskrivning/i.test(h));
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const iBelopp = headers.findIndex(h => /^belopp$/i.test(h));
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const iSaldo = headers.findIndex(h => /^saldo$/i.test(h));
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if (iBokDatum === -1 || iBelopp === -1) {
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throw new Error('SEB: saknar kolumnerna Bokföringsdatum och/eller Belopp');
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}
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const rows = [];
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for (let i = 1; i < lines.length; i++) {
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const cols = splitRow(lines[i], ',');
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const amount = parseSwedishNumber(cols[iBelopp]);
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if (amount == null) continue;
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rows.push({
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date: (cols[iBokDatum] || '').trim(),
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description: (iNamn >= 0 ? cols[iNamn] : '').trim(),
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amount,
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balance: iSaldo >= 0 ? parseSwedishNumber(cols[iSaldo]) : null,
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raw: lines[i],
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});
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}
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return rows;
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}
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// ── Handelsbanken ─────────────────────────────────────────────────────────────
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// Format: Datum\tText\tBelopp\tSaldo (tab-separerat)
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export function parseHandelsbanken(csv) {
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const lines = getLines(csv);
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const headerLine = lines[0];
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const headers = splitRow(headerLine, '\t').map(h => h.trim());
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const iDatum = headers.findIndex(h => /^datum$/i.test(h));
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const iText = headers.findIndex(h => /^text$/i.test(h));
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const iBelopp = headers.findIndex(h => /^belopp$/i.test(h));
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const iSaldo = headers.findIndex(h => /^saldo$/i.test(h));
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if (iDatum === -1 || iBelopp === -1) {
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throw new Error('Handelsbanken: saknar kolumnerna Datum och/eller Belopp');
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}
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const rows = [];
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for (let i = 1; i < lines.length; i++) {
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const cols = splitRow(lines[i], '\t');
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const amount = parseSwedishNumber(cols[iBelopp]);
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if (amount == null) continue;
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rows.push({
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date: (cols[iDatum] || '').trim(),
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description: (iText >= 0 ? cols[iText] : '').trim(),
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amount,
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balance: iSaldo >= 0 ? parseSwedishNumber(cols[iSaldo]) : null,
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raw: lines[i],
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});
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}
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return rows;
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}
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// ── Nordea ────────────────────────────────────────────────────────────────────
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// Format: Bokföringsdag;Belopp;Avsändare;Mottagare;Namn;Rubrik;Saldo
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export function parseNordea(csv) {
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const lines = getLines(csv);
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const headerLine = lines[0];
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const headers = splitRow(headerLine, ';').map(h => h.trim());
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const iBokDag = headers.findIndex(h => /bokf[öo]ringsdag/i.test(h));
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const iBelopp = headers.findIndex(h => /^belopp$/i.test(h));
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const iNamn = headers.findIndex(h => /^namn$/i.test(h));
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const iRubrik = headers.findIndex(h => /^rubrik$/i.test(h));
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const iSaldo = headers.findIndex(h => /^saldo$/i.test(h));
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if (iBokDag === -1 || iBelopp === -1) {
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throw new Error('Nordea: saknar kolumnerna Bokföringsdag och/eller Belopp');
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}
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const rows = [];
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for (let i = 1; i < lines.length; i++) {
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const cols = splitRow(lines[i], ';');
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const amount = parseSwedishNumber(cols[iBelopp]);
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if (amount == null) continue;
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// Beskrivning: kombinera Namn + Rubrik
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const namePart = (iNamn >= 0 ? cols[iNamn] : '').trim();
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const rubrikPart = (iRubrik >= 0 ? cols[iRubrik] : '').trim();
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const description = [namePart, rubrikPart].filter(Boolean).join(' — ');
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rows.push({
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date: (cols[iBokDag] || '').trim(),
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description,
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amount,
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balance: iSaldo >= 0 ? parseSwedishNumber(cols[iSaldo]) : null,
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raw: lines[i],
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});
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}
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return rows;
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}
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// ── Auto-detect ───────────────────────────────────────────────────────────────
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export function detectBank(csv) {
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const firstLine = getLines(csv)[0] || '';
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const lower = firstLine.toLowerCase();
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// Handelsbanken: tab-separerad med Datum, Text
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if (firstLine.includes('\t')) return 'handelsbanken';
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// Nordea: semikolon, innehåller "bokföringsdag"
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if (lower.includes('bokf') && lower.includes('ringsdag') && firstLine.includes(';')) return 'nordea';
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// SEB: komma-separerad, innehåller "bokföringsdatum" eller "valutadatum"
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if ((lower.includes('bokf') && lower.includes('ringsdatum') || lower.includes('valutadatum')) && firstLine.includes(',')) return 'seb';
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// Swedbank: semikolon, innehåller "transaktion"
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if (lower.includes('transaktion') && firstLine.includes(';')) return 'swedbank';
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// Fallback: prova utifrån separator
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if (firstLine.includes(';')) {
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if (lower.includes('belopp') && lower.includes('saldo')) return 'nordea'; // educated guess
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return 'swedbank';
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}
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if (firstLine.includes(',')) return 'seb';
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return null;
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}
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// ── Unified parse ─────────────────────────────────────────────────────────────
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export function parseCSV(bank, csv) {
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const resolvedBank = bank === 'auto' ? detectBank(csv) : bank;
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if (!resolvedBank) throw new Error('Kunde inte auto-detektera bankformat');
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switch (resolvedBank.toLowerCase()) {
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case 'swedbank': return { bank: 'swedbank', rows: parseSwedbank(csv) };
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case 'seb': return { bank: 'seb', rows: parseSEB(csv) };
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case 'handelsbanken': return { bank: 'handelsbanken', rows: parseHandelsbanken(csv) };
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case 'nordea': return { bank: 'nordea', rows: parseNordea(csv) };
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default:
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throw new Error(`Okänt bankformat: ${resolvedBank}`);
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}
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}
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export const SUPPORTED_FORMATS = {
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swedbank: {
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delimiter: ';',
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columns: ['Datum', 'Transaktion', 'Kategori', 'Belopp', 'Saldo'],
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date_format: 'YYYY-MM-DD',
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number_format: 'swedish (komma decimal, mellanslagstusentalsseparator)',
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},
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seb: {
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delimiter: ',',
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columns: ['Bokföringsdatum', 'Valutadatum', 'Namn/Beskrivning', 'Belopp', 'Saldo'],
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date_format: 'YYYY-MM-DD',
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number_format: 'decimal punkt',
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},
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handelsbanken: {
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delimiter: 'tab',
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columns: ['Datum', 'Text', 'Belopp', 'Saldo'],
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date_format: 'YYYY-MM-DD',
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number_format: 'swedish (komma decimal, mellanslagstusentalsseparator)',
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},
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nordea: {
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delimiter: ';',
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columns: ['Bokföringsdag', 'Belopp', 'Avsändare', 'Mottagare', 'Namn', 'Rubrik', 'Saldo'],
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date_format: 'YYYY-MM-DD',
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number_format: 'decimal punkt',
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},
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};
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