import { toTimeSeriesPoints, type ElementHistorySeries } from "./elementHistory";

describe("element history display conversion", () => {
  it("converts every series through the shared unit utility", () => {
    const series: ElementHistorySeries[] = [
      {
        element_id: "P-1",
        element_type: "pipe",
        device_id: null,
        metric: "flow",
        source: "realtime_simulation",
        source_unit: "MLD",
        display_unit: "m³/h",
        unit_inferred: false,
        points: [{ time: "2026-09-01T00:00:00Z", value: 2 }],
      },
      {
        element_id: "J-1",
        element_type: "junction",
        device_id: "pressure-1",
        metric: "pressure",
        source: "scada_cleaned",
        source_unit: "KPA",
        display_unit: "m",
        unit_inferred: false,
        points: [{ time: "2026-09-01T00:00:00Z", value: 10 }],
      },
    ];

    const points = toTimeSeriesPoints(series);
    expect(points[0].timestamp).toBe("2026-09-01T00:00:00Z");
    expect(points[0].values["P-1_sim"]).toBeCloseTo(83.3333333334);
    expect(points[0].values["pressure-1_clean"]).toBeCloseTo(1.019716213);
  });
});