import { beforeEach, describe, expect, it, vi } from 'vitest'
import { IPC_CHANNELS } from '@d3ro/core/ipc-channels'

const handlers = vi.hoisted(
  () => new Map<string, (event: unknown, params: unknown) => Promise<unknown>>()
)
const eventHandlers = vi.hoisted(() => new Map<string, (...args: unknown[]) => void>())
const configSet = vi.hoisted(() => vi.fn())
const suggestion = vi.hoisted(() => ({
  setEnabled: vi.fn(),
  applyConfig: vi.fn(),
  dismiss: vi.fn(),
  getState: vi.fn(() => ({ enabled: true }))
}))
const hideSuggestionOverlay = vi.hoisted(() => vi.fn())

vi.mock('electron', () => ({
  ipcMain: {
    handle: vi.fn((channel: string, handler: (event: unknown, params: unknown) => Promise<unknown>) => {
      handlers.set(channel, handler)
    }),
    on: vi.fn((channel: string, handler: (...args: unknown[]) => void) => {
      eventHandlers.set(channel, handler)
    })
  }
}))

vi.mock('../../../src/main/services/ConfigService', () => ({ configSet }))
vi.mock('../../../src/main/services/SuggestionService', () => ({
  getSuggestionService: () => suggestion
}))
vi.mock('../../../src/main/windows/WindowManager', () => ({
  applySuggestionOverlayConfig: vi.fn(),
  hideSuggestionOverlay
}))

beforeEach(async () => {
  vi.resetModules()
  vi.clearAllMocks()
  handlers.clear()
  eventHandlers.clear()
  const mod = await import('../../../src/main/ipc/suggestion-handlers')
  mod.registerSuggestionHandlers()
})

describe('SUGGESTION.SET_CONFIG', () => {
  it('명시적으로 활성화할 때 서비스의 warm-up 경로를 사용한다', async () => {
    const handler = handlers.get(IPC_CHANNELS.SUGGESTION.SET_CONFIG)
    if (!handler) throw new Error('suggestion config handler was not registered')

    await handler({}, { enabled: true })

    expect(suggestion.setEnabled).toHaveBeenCalledWith(true)
    expect(configSet).not.toHaveBeenCalledWith('suggestionEnabled', true)
  })

  it('분당 요청 상한을 12로 강제한다', async () => {
    const handler = handlers.get(IPC_CHANNELS.SUGGESTION.SET_CONFIG)
    if (!handler) throw new Error('suggestion config handler was not registered')

    await handler({}, { maxRequestsPerMinute: 99 })

    expect(configSet).toHaveBeenCalledWith('suggestionMaxRequestsPerMinute', 12)
  })
})

describe('POPUP_SUGGESTION.DISMISS', () => {
  it('서비스 이벤트를 기다리지 않고 창을 숨긴 뒤 제안을 취소한다', () => {
    const handler = eventHandlers.get(IPC_CHANNELS.POPUP_SUGGESTION.DISMISS)
    if (!handler) throw new Error('suggestion dismiss handler was not registered')

    handler({})

    expect(hideSuggestionOverlay).toHaveBeenCalledTimes(1)
    expect(suggestion.dismiss).toHaveBeenCalledWith('dismissed')
    expect(hideSuggestionOverlay.mock.invocationCallOrder[0]).toBeLessThan(
      suggestion.dismiss.mock.invocationCallOrder[0]
    )
  })
})