feat: add isolated historical replay calibration

2026-08-04 22:00:11 +01:00
parent be18eb77f0
commit 5877783862
13 changed files with 308 additions and 17 deletions
@@ -20,7 +20,9 @@ function httpGet(url) {
 }

 async function history(symbol) {
-  const url = `https://query1.finance.yahoo.com/v8/finance/chart/${encodeURIComponent(symbol)}?range=10y&interval=1d`;
+  // GDELT backfills predate the normal rolling quote window.  Use an explicit
+  // point-in-time range so replay outcomes do not silently become unresolvable.
+  const url = `https://query1.finance.yahoo.com/v8/finance/chart/${encodeURIComponent(symbol)}?period1=946684800&period2=${Math.floor(Date.now() / 1000)}&interval=1d`;
  const body = JSON.parse(await httpGet(url));
  const result = body?.chart?.result?.[0];
  if (!result) return [];