import assert from 'node:assert/strict';
import test from 'node:test';
import {
  includeCurrentDayInVehicleDetail,
  normalizeVehicleDetailContext,
  resolveVehicleDetailRange,
  vehicleDetailContextLabel,
} from './vehicle-detail-range.js';

const NOW = new Date(2026, 7, 7, 12, 0, 0);

test('normalizes and preserves a selected vehicle drill range', () => {
  const context = normalizeVehicleDetailContext('2026-08-07', '2026-08-05');
  assert.deepEqual(context, { start: '2026-08-05', end: '2026-08-07' });
  assert.deepEqual(resolveVehicleDetailRange('context', context, NOW), context);
});

test('rejects invalid context dates and resolves calendar presets', () => {
  assert.equal(normalizeVehicleDetailContext('2026-02-30', '2026-03-01'), null);
  assert.deepEqual(resolveVehicleDetailRange('last15', null, NOW), {
    start: '2026-07-24',
    end: '2026-08-07',
  });
  assert.deepEqual(resolveVehicleDetailRange('month', null, NOW), {
    start: '2026-08-01',
    end: '2026-08-07',
  });
  assert.deepEqual(resolveVehicleDetailRange('quarter', null, NOW), {
    start: '2026-07-01',
    end: '2026-08-07',
  });
});

test('labels selected dates and includes today only for explicit context', () => {
  const context = { start: '2026-08-07', end: '2026-08-07' };
  assert.equal(vehicleDetailContextLabel(context), '8月7日');
  assert.equal(includeCurrentDayInVehicleDetail('context'), true);
  assert.equal(includeCurrentDayInVehicleDetail('last15'), false);
});