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

import { containerSignalTone, signalToneFromState, sourceSignalTone, worstSignalTone } from '../../src/overviewSignals';

describe('overview signal semantics', () => {
  it('fails source provenance closed when freshness is stale or unavailable', () => {
    expect(sourceSignalTone({ state: 'healthy', freshness: 'stale' })).toBe('stale');
    expect(sourceSignalTone({ state: 'healthy', freshness: 'unavailable' })).toBe('unknown');
    expect(sourceSignalTone({ state: 'degraded', freshness: 'fresh' })).toBe('attention');
    expect(sourceSignalTone({ state: 'healthy', freshness: 'fresh' })).toBe('healthy');
    expect(sourceSignalTone(undefined)).toBe('unknown');
  });

  it('mirrors container domain state without escalating intentional stops', () => {
    expect(containerSignalTone({ state: 'running', health: 'healthy' })).toBe('healthy');
    expect(containerSignalTone({ state: 'running', health: 'unhealthy' })).toBe('attention');
    expect(containerSignalTone({ state: 'restarting', health: 'unknown' })).toBe('attention');
    expect(containerSignalTone({ state: 'stopped', health: 'unknown' })).toBe('critical');
    expect(containerSignalTone({ state: 'stopped', health: 'unknown', intentionalStop: true })).toBe('unknown');
  });

  it('keeps the most severe state deterministically', () => {
    expect(signalToneFromState('DOWN')).toBe('critical');
    expect(worstSignalTone(['healthy', 'unknown', 'attention', 'stale'])).toBe('attention');
    expect(worstSignalTone([])).toBe('unknown');
  });
});