import { describe, it, expect, vi, afterEach } from 'vitest'
import { waitForHumanResponse, clearAllPending } from './human-responses.js'
import { fightEvents } from './events.js'
import type { Challenge } from './challenges.js'

const factualChallenge: Challenge = {
  type: 'speed_blitz',
  label: 'Speed Blitz',
  prompt: 'What year was Bitcoin launched?',
  answers: ['2009'],
  scoring: 'factual',
  timeout_ms: 10000,
  baseDamage: 20,
  choices: ['2009', '2010', '2008'],
}

const quickChallenge: Challenge = {
  type: 'math_blitz',
  label: 'Math Blitz',
  prompt: 'What is 2+2?',
  answers: ['4'],
  scoring: 'factual',
  timeout_ms: 5000,
  baseDamage: 18,
  choices: ['4', '3', '5'],
}

afterEach(() => {
  clearAllPending()
})

describe('BUG-2: SSE uses challenge timeout, not hardcoded', () => {
  it('waitForHumanResponse uses challenge.timeout_ms', () => {
    const fightId = `bug2-${Date.now()}`
    vi.useFakeTimers()

    // 10s challenge timeout + 5s human extra = 15s total
    const { promise } = waitForHumanResponse(fightId, 'bot1', factualChallenge, 1)

    let resolved = false
    void promise.then(() => { resolved = true })

    // At 14s, should NOT have timed out yet
    vi.advanceTimersByTime(14_000)
    expect(resolved).toBe(false)

    // At 16s, should have timed out (10s + 5s = 15s)
    vi.advanceTimersByTime(2_000)

    vi.useRealTimers()
  })

  it('different challenge type has different timeout', () => {
    const fightId = `bug2-quick-${Date.now()}`
    vi.useFakeTimers()

    // 5s timeout + 5s human extra = 10s total
    const { promise } = waitForHumanResponse(fightId, 'bot2', quickChallenge, 1)

    let resolved = false
    void promise.then(() => { resolved = true })

    // At 9s, should NOT have timed out yet
    vi.advanceTimersByTime(9_000)
    expect(resolved).toBe(false)

    // At 11s, should have timed out (5s + 5s = 10s)
    vi.advanceTimersByTime(2_000)

    vi.useRealTimers()
  })
})

describe('BUG-3: shuffle return value used', () => {
  it('choices returned from waitForHumanResponse are shuffled (contain correct answer)', () => {
    vi.useFakeTimers()
    const fightId = `bug3-${Date.now()}`
    const { choices } = waitForHumanResponse(fightId, 'bot3', factualChallenge, 1)

    // Must contain the correct answer
    expect(choices).toContain('2009')
    // Must have 3 choices
    expect(choices).toHaveLength(3)

    clearAllPending()
    vi.useRealTimers()
  })
})

describe('BUG-9: no TODO in prompt options', () => {
  it('no prompt contains TODO string', () => {
    vi.useFakeTimers()
    const fightId = `bug9-${Date.now()}`
    const { choices } = waitForHumanResponse(fightId, 'bot9', factualChallenge, 1)

    for (const choice of choices) {
      expect(choice).not.toContain('TODO')
      expect(choice).not.toContain('pass #')
    }

    clearAllPending()
    vi.useRealTimers()
  })
})

describe('BUG-12: fightEvents.cleanup removes listeners', () => {
  it('cleanup removes fight listeners', () => {
    const fightId = 'bug12-test'
    let received = false
    fightEvents.on(fightId, () => { received = true })

    fightEvents.cleanup(fightId)

    // Emit after cleanup — should not fire
    fightEvents.emit({
      fightId,
      type: 'test',
      data: {},
      timestamp: new Date().toISOString(),
    })

    expect(received).toBe(false)
  })

  it('global listeners still fire after cleanup', () => {
    const fightId = 'bug12-global'
    let received = false
    const unsub = fightEvents.onAll(() => { received = true })

    fightEvents.cleanup(fightId)

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

    expect(received).toBe(true)
    unsub()
  })
})