botfights/server/src/engine/events.test.ts

import { describe, it, expect } from 'vitest'
import { fightEvents, type FightEvent } from './events.js'

describe('fightEvents', () => {
  it('emits events to fight-specific listeners', () => {
    const events: FightEvent[] = []
    const unsub = fightEvents.on('fight-1', (e) => events.push(e))

    fightEvents.emit({
      fightId: 'fight-1',
      type: 'test',
      data: { msg: 'hello' },
      timestamp: new Date().toISOString(),
    })

    expect(events).toHaveLength(1)
    expect(events[0].data.msg).toBe('hello')
    unsub()
  })

  it('cleanup removes all listeners for a fight', () => {
    const events: FightEvent[] = []
    fightEvents.on('fight-cleanup', (e) => events.push(e))
    fightEvents.on('fight-cleanup', (e) => events.push(e))

    fightEvents.cleanup('fight-cleanup')

    fightEvents.emit({
      fightId: 'fight-cleanup',
      type: 'test',
      data: {},
      timestamp: new Date().toISOString(),
    })

    expect(events).toHaveLength(0)
  })

  it('global listeners receive all events', () => {
    const events: FightEvent[] = []
    const unsub = fightEvents.onAll((e) => events.push(e))

    fightEvents.emit({
      fightId: 'fight-global-1',
      type: 'test',
      data: {},
      timestamp: new Date().toISOString(),
    })
    fightEvents.emit({
      fightId: 'fight-global-2',
      type: 'test',
      data: {},
      timestamp: new Date().toISOString(),
    })

    expect(events).toHaveLength(2)
    unsub()
  })
})