import { test } from 'node:test';
import assert from 'node:assert/strict';
import { withChart, assertNoPageErrors } from './helpers.mjs';

test('SPY open and close land on weekday Eastern hours, never the weekend',
  { timeout: 180000 }, async () => {
    await withChart(async page => {
      const marks = await page.evaluate(() => {
        const monday = Date.UTC(2026, 7, 17, 0, 0) / 1000;
        const sunday = Date.UTC(2026, 7, 16, 12, 0) / 1000;
        return {
          monday: ConfluenceChart.rthInstants(monday, monday + 24 * 3600),
          sunday: ConfluenceChart.rthInstants(sunday, sunday + 6 * 3600),
          dst: ConfluenceChart.epochAtEastern(2026, 3, 9, 9, 30),
          open: ConfluenceChart.epochAtEastern(2026, 8, 17, 9, 30),
          close: ConfluenceChart.epochAtEastern(2026, 8, 17, 16, 0),
        };
      });
      assert.equal(marks.open, 1786973400);
      assert.equal(marks.close, 1786996800);
      assert.equal(marks.dst, 1773063000);
      assert.deepEqual(marks.monday.map(mark => mark.kind), ['open', 'close']);
      assert.equal(marks.sunday.length, 0);
      assertNoPageErrors(page, assert);
    });
  });