Ledger: Finance Dashboard Kit

11 files

src/journal.ts

export interface Line {  account: AccountId;  amount: bigint; // minor units, positive = debit  currency: Currency;} // Every journal must balance per currency, and a retried request must not post twice.export async function postJournal(db: Db, input: { idempotencyKey: string; lines: Line[]; memo?: string }) {  for (const [currency, total] of sumByCurrency(input.lines)) {    if (total !== 0n) throw new UnbalancedJournal(currency, total);  } 

src/verify.ts

import { createHmac, timingSafeEqual } from 'node:crypto'; export function verifySignature(secret: string, payload: string, header: string) {  const [timestamp, signature] = parseHeader(header);  if (Date.now() / 1000 - timestamp > 300) return false;   const expected = createHmac('sha256', secret)    .update(`${timestamp}.${payload}`)    .digest('hex');   return timingSafeEqual(Buffer.from(expected), Buffer.from(signature));}

scorer/score.py

def score_pr(findings, gold, line_slack=3):    """Match each gold bug to at most one finding in the same file within a few lines."""    matched, used = 0, set()    for bug in gold:        for i, f in enumerate(findings):            if i not in used and f.path == bug.path and abs(f.line - bug.line) <= line_slack:                matched += 1                used.add(i)                break     noise = len(findings) - len(used)  # comments that point at no seeded bug    return {"recall": matched / len(gold), "precision": matched / max(len(findings), 1), "noise": noise}