import { strict as assert } from "node:assert";
import { test } from "node:test";
import dayjs from "dayjs";
import {
  getServiceMinute,
  getServiceTimeDifference,
  normalizeTime,
  parseClockTime,
  setClockTime,
  setServiceTime,
} from "../lib/timeUtils";

test("legacy timetable clock values normalize to HH:mm", () => {
  assert.equal(normalizeTime("4:5"), "04:05");
  assert.equal(normalizeTime(" 04:05 "), "04:05");
  assert.equal(parseClockTime("24:00"), null);
  assert.equal(normalizeTime("invalid"), "invalid");
});

test("clock time and service time intentionally differ after midnight", () => {
  const base = dayjs("2026-09-04T23:50:00");
  assert.equal(
    setClockTime(base, "00:10")?.format("YYYY-MM-DD HH:mm"),
    "2026-09-04 00:10",
  );
  assert.equal(
    setServiceTime(base, "00:10")?.format("YYYY-MM-DD HH:mm"),
    "2026-09-05 00:10",
  );
});

test("service-time difference handles both sides of midnight", () => {
  assert.equal(
    getServiceTimeDifference(dayjs("2026-09-04T23:50:00"), "00:10"),
    20,
  );
  assert.equal(
    getServiceTimeDifference(dayjs("2026-09-05T00:10:00"), "00:30"),
    20,
  );
});

test("service minutes retain the 04:00 railway-day boundary", () => {
  assert.equal(getServiceMinute("03:59"), 1679);
  assert.equal(getServiceMinute("04:00"), 240);
  assert.equal(getServiceMinute("invalid"), null);
});