Function step

examples/ReplayMode.js:49–78

()

let interval = NaN;

async function step() {
  const period = { ...chart.periods[0] };

  const times = Object.keys(periods);
  const intrval = times[times.length - 1] - times[times.length - 2];
  if (Number.isNaN(interval) && times.length >= 2) interval = intrval;

  if (!Number.isNaN(interval) && interval !== intrval) {
    throw new Error(`Wrong interval: ${intrval} (should be ${interval})`);
  }

  indicators.forEach(([n, i]) => {
    const plots = { ...i.periods[0] };
    delete plots.$time;
    period[n] = { plots };

    Object.keys(i.graphic).forEach((g) => {
      if (!i.graphic[g].length) return;
      if (!period[n].graphics) period[n].graphics = {};
      period[n].graphics[g] = i.graphic[g];
    });
  });

  periods[period.time] = period;

  console.log('Next ->', period.time, times.length);

  await chart.replayStep(1);
  step();
}

chart.onReplayEnd(async () => {
  await client.end();