import { afterEach, describe, expect, it } from 'vitest';

import {
  operatorCustomRangeValid,
  operatorRangeSelection,
  resetOperatorContextForTests,
  setOperatorCustomRange,
  setOperatorPaused,
  setOperatorRangePreset,
} from '../../src/operatorContext';

afterEach(() => {
  resetOperatorContextForTests();
  window.localStorage.clear();
  window.history.replaceState({}, '', '/');
});

describe('global operator context', () => {
  it('encodes a valid custom range in the shareable URL', () => {
    setOperatorCustomRange('2026-09-01T10:00', '2026-09-01T11:00');
    const params = new URLSearchParams(window.location.search);
    expect(params.get('range')).toBe('custom');
    expect(params.get('from')).toBe(new Date('2026-09-01T10:00').toISOString());
    expect(params.get('to')).toBe(new Date('2026-09-01T11:00').toISOString());
  });

  it('permits pause only for the live range', () => {
    setOperatorRangePreset('live');
    setOperatorPaused(true);
    expect(window.localStorage.getItem('pulse.operator.paused')).toBe('true');
    setOperatorRangePreset('1h');
    expect(window.localStorage.getItem('pulse.operator.paused')).toBe('false');
  });

  it('fails closed to one hour when a custom range is invalid', () => {
    const value = { range: 'custom' as const, customFrom: '2026-09-01T11:00', customTo: '2026-09-01T10:00', paused: false, refreshVersion: 0 };
    expect(operatorCustomRangeValid(value)).toBe(false);
    expect(operatorRangeSelection(value)).toBe('1h');
  });
});