Overleaf/services/web/frontend/stories/chat.stories.js

import { useEffect } from 'react'
import ChatPane from '../js/features/chat/components/chat-pane'
import useFetchMock from './hooks/use-fetch-mock'
import { generateMessages } from './fixtures/chat-messages'
import { ScopeDecorator } from './decorators/scope'

export const Conversation = args => {
  useFetchMock(fetchMock => {
    fetchMock.get(/messages/, generateMessages(35)).post(/messages/, {})
  })

  return <ChatPane {...args} />
}

export const NoMessages = args => {
  useFetchMock(fetchMock => {
    fetchMock.get(/messages/, [])
  })

  return <ChatPane {...args} />
}

export const Loading = args => {
  useFetchMock(fetchMock => {
    fetchMock.get(/messages/, generateMessages(6), {
      delay: 1000 * 10,
    })
  })

  return <ChatPane {...args} />
}

export const LoadingError = args => {
  useFetchMock(fetchMock => {
    fetchMock.get(/messages/, 500)
  })

  return <ChatPane {...args} />
}

export default {
  title: 'Editor / Chat',
  component: ChatPane,
  argTypes: {
    resetUnreadMessages: { action: 'resetUnreadMessages' },
  },
  args: {
    resetUnreadMessages: () => {},
  },
  decorators: [
    ScopeDecorator,
    Story => {
      useEffect(() => {
        window.MathJax = {
          Hub: {
            Queue: () => {},
            config: { tex2jax: { inlineMath: [['$', '$']] } },
          },
        }

        return () => {
          delete window.MathJax
        }
      }, [])

      return <Story />
    },
  ],
}