'use strict';
const state = require('../src/state');

describe('state', () => {
  test('set and get round-trip', () => {
    state.set('input-1', { value: 24.5, unit: '°C', moduleId: 'mod-a', moduleSlug: 'lrpc_abc', metric: 'temperature', timestamp: '2026-01-01T00:00:00Z' });
    const entry = state.get('input-1');
    expect(entry.value).toBe(24.5);
    expect(entry.unit).toBe('°C');
  });

  test('getAll returns all entries', () => {
    state.set('input-2', { value: 7.2, unit: 'pH', moduleId: 'mod-b', moduleSlug: 'lrps_xyz', metric: 'ph', timestamp: '2026-01-01T00:00:00Z' });
    const all = state.getAll();
    expect(all['input-1']).toBeDefined();
    expect(all['input-2']).toBeDefined();
  });

  test('getByModule filters by moduleId', () => {
    const byMod = state.getByModule('mod-a');
    expect(Object.keys(byMod)).toContain('input-1');
    expect(Object.keys(byMod)).not.toContain('input-2');
  });

  test('inputCount returns store size', () => {
    expect(state.inputCount()).toBeGreaterThanOrEqual(2);
  });

  test('get returns null for unknown inputId', () => {
    expect(state.get('does-not-exist')).toBeNull();
  });

  test('update event fires on set', done => {
    state.on('update', (id, entry) => {
      if (id === 'input-event-test') {
        expect(entry.value).toBe(999);
        done();
      }
    });
    state.set('input-event-test', { value: 999, moduleId: 'x', moduleSlug: 's', metric: 'm', timestamp: '' });
  });
});