import { test } from 'node:test';
import assert from 'node:assert/strict';
import { buildGeoUri, formatAccuracy } from './geoShare';
import { parseGeoUri } from './common';

test('buildGeoUri: exact share keeps 6 decimals and adds the accuracy as u=', () => {
  assert.equal(buildGeoUri(40.748817, -73.985428, 12.4), 'geo:40.748817,-73.985428;u=12');
  assert.equal(buildGeoUri(40.748817, -73.985428), 'geo:40.748817,-73.985428');
  assert.equal(buildGeoUri(40.748817, -73.985428, Number.NaN), 'geo:40.748817,-73.985428');
});

test('buildGeoUri: approximate share rounds to ~1 km and never claims better than 1 km', () => {
  assert.equal(buildGeoUri(40.748817, -73.985428, 12, true), 'geo:40.75,-73.99;u=1000');
  assert.equal(buildGeoUri(40.748817, -73.985428, 3500, true), 'geo:40.75,-73.99;u=3500');
});

test('buildGeoUri output still parses with the renderer', () => {
  const loc = parseGeoUri(buildGeoUri(51.5, -0.12, 30));
  assert.ok(loc);
  assert.equal(parseFloat(loc.latitude), 51.5);
  assert.equal(parseFloat(loc.longitude), -0.12);
});

test('formatAccuracy', () => {
  assert.equal(formatAccuracy(12.4), '±12 m');
  assert.equal(formatAccuracy(3500), '±3.5 km');
  assert.equal(formatAccuracy(25000), '±25 km');
  assert.equal(formatAccuracy(undefined), undefined);
  assert.equal(formatAccuracy(0), undefined);
});