// Pull booked bank transactions into money.transactions (Enable Banking).
//
//   bun --env-file=$HOME/.config/money-sync.env scripts/bank-sync.ts [options]
//     --dry-run          fetch and report, write nothing
//     --reconcile        match against ALL hand-entered rows (account + amount + date ±1 day)
//                        and attach the bank id to them instead of inserting duplicates;
//                        run once after linking (with --dry-run first)
//     --from YYYY-MM-DD  override the start date (default: last synced date - 7 days, or the
//                        account's first transaction on the first run)
//     --account <name>   only this tracker account
//
// Dedupe: unique (account_id, external_id); re-running is always safe.
import postgres from 'postgres';
import { configFromEnv, createEnableBankingClient } from '../src/lib/server/enable-banking';
import { syncBankAccounts } from '../src/lib/server/bank-sync';

const args = process.argv.slice(2);
const value = (name: string) => {
	const i = args.indexOf(name);
	return i >= 0 ? args[i + 1] : undefined;
};
const from = value('--from');
if (from && !/^\d{4}-\d{2}-\d{2}$/.test(from)) throw new Error('--from must be YYYY-MM-DD');
if (!process.env.DB_URL) throw new Error('DB_URL is not set');

const client = createEnableBankingClient(configFromEnv());
const sql = postgres(process.env.DB_URL, { max: 2, connect_timeout: 10, onnotice: () => {} });
const dryRun = args.includes('--dry-run');
try {
	const results = await syncBankAccounts(sql, client, {
		dryRun,
		reconcile: args.includes('--reconcile'),
		from,
		accountName: value('--account')
	});
	for (const r of results) {
		console.log(
			`${r.account}: fetched ${r.fetched}, booked ${r.booked}, new ${r.inserted}, ` +
				`matched to existing ${r.matched}, already synced ${r.alreadyKnown}` +
				(r.balance ? `, bank balance ${r.balance}` : '') +
				(r.error ? `\n  ERROR ${r.error}` : '')
		);
	}
	if (dryRun) console.log('(dry run: nothing written)');
	if (results.some((r) => r.error)) process.exitCode = 1;
} finally {
	await sql.end();
}