fix csv import for money tracker

src/routes/projects/money-tracker/+page.server.ts

@@ -11,12 +11,12 @@ import {
 } from '$lib/server/db/schema';
 import { requireAdmin } from '$lib/server/authorization';
 import {
+	type ImportedTransaction,
 	cadence,
 	cents,
-	csvDate,
 	invalid,
 	optionalText,
-	parseCsv,
+	parseTransactionImport,
 	positiveId,
 	textField,
 	utilityKind,
@@ -371,42 +371,13 @@ export const actions: Actions = {
 		const form = await event.request.formData();
 		const file = form.get('file');
 		if (!(file instanceof File) || !file.size || file.size > 2_000_000)
-			return invalid('Choose a CSV file under 2 MB.');
-		let rows: string[][];
+			return invalid('Choose a CSV or TSV file under 2 MB.');
+		let parsed: ImportedTransaction[];
 		try {
-			rows = parseCsv(await file.text());
+			parsed = parseTransactionImport(await file.text());
 		} catch (cause) {
 			return invalid(cause instanceof Error ? cause.message : 'Invalid CSV.');
 		}
-		if (rows.length < 2 || rows.length > 20_001)
-			return invalid('The CSV must have a header and 1–20,000 rows.');
-		const header = rows.shift()!.map((value) =>
-			value
-				.replace(/^\uFEFF/, '')
-				.trim()
-				.toLowerCase()
-		);
-		const columns = ['date', 'account', 'description', 'amount'].map((key) => header.indexOf(key));
-		if (columns.some((index) => index < 0))
-			return invalid('CSV headers must include date, account, description and amount.');
-		const parsed: { date: string; account: string; description: string; amountCents: number }[] =
-			[];
-		for (const [index, row] of rows.entries()) {
-			const date = csvDate(row[columns[0]] ?? '');
-			const account = (row[columns[1]] ?? '').trim();
-			const description = (row[columns[2]] ?? '').trim();
-			const amountCents = cents(row[columns[3]]);
-			if (
-				!date ||
-				!account ||
-				account.length > 80 ||
-				!description ||
-				description.length > 500 ||
-				amountCents == null
-			)
-				return invalid(`Invalid data in CSV row ${index + 2}. No rows were imported.`);
-			parsed.push({ date, account, description, amountCents });
-		}
 		await db.transaction(async (tx) => {
 			const existing = await tx
 				.select()