const assert = require("node:assert/strict");
const { test } = require("node:test");

const { buildChartConfiguration, normalizeJsonSeries } = require("../plot-json");

test("travel stability data plots pressure against motor distance", () => {
  const normalized = normalizeJsonSeries({
    stable_pressures: [
      { distance: 1000, pressure: 12.3 },
      { distance: 900, pressure: 15.6 },
      { distance: 800, pressure: 18.1 }
    ]
  });

  assert.deepEqual(normalized.labels, [1000, 900, 800]);
  assert.deepEqual(normalized.series, [{
    label: "pressure",
    data: [
      { x: 1000, y: 12.3 },
      { x: 900, y: 15.6 },
      { x: 800, y: 18.1 }
    ]
  }]);
  assert.equal(normalized.chartKind, "travel-stability");
  assert.equal(normalized.xLabel, "行程");
  assert.equal(normalized.yLabel, "稳态压力 (kPa)");

  const chart = buildChartConfiguration(normalized, "travel.json");
  assert.equal(chart.type, "scatter");
  assert.equal(chart.options.scales.x.type, "linear");
  assert.equal(chart.options.scales.x.min, 0);
  assert.equal(chart.options.scales.x.max, 1000);
  assert.equal(chart.options.plugins.travelPointLabels, true);
  assert.equal(chart.data.datasets[0].pointRadius, 4);
});