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Merge pull request #6 from AlexStack/nextjs14
feat: add hook useClientContext
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /* eslint-disable @next/next/no-img-element */ | ||
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| 'use client'; | ||
| import { Send } from '@mui/icons-material'; | ||
| import Avatar from '@mui/material/Avatar'; | ||
| import Button from '@mui/material/Button'; | ||
| import Stack from '@mui/material/Stack'; | ||
| import React, { useEffect, useState } from 'react'; | ||
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| import { useAlertBar } from '@/hooks/useAlertBar'; | ||
| import { useClientContext } from '@/hooks/useClientContext'; | ||
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| import SubmitButton from '@/components/shared/SubmitButton'; | ||
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| const DisplayRandomPicture = () => { | ||
| const [imageUrl, setImageUrl] = useState(''); | ||
| const [loading, setLoading] = useState(true); | ||
| const [error, setError] = useState(''); | ||
| const { fetchCount, updateClientCtx } = useClientContext(); | ||
| const { setAlertBarProps, renderAlertBar } = useAlertBar(); | ||
| const renderCountRef = React.useRef(0); | ||
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| const fetchRandomPicture = async () => { | ||
| setLoading(true); | ||
| setError(''); | ||
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| try { | ||
| const response = await fetch('https://picsum.photos/300/150'); | ||
| if (!response.ok) { | ||
| throw new Error('Error fetching the image'); | ||
| } | ||
| setImageUrl(response.url); | ||
| updateClientCtx({ fetchCount: fetchCount + 1 }); | ||
| setAlertBarProps({ | ||
| message: 'A random picture fetched successfully', | ||
| severity: 'info', | ||
| }); | ||
| } catch (error) { | ||
| setError('Error fetching the image'); | ||
| setAlertBarProps({ | ||
| message: 'Error fetching the image', | ||
| severity: 'error', | ||
| }); | ||
| } finally { | ||
| setLoading(false); | ||
| } | ||
| }; | ||
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| useEffect(() => { | ||
| if (renderCountRef.current === 0) { | ||
| fetchRandomPicture(); | ||
| } | ||
| renderCountRef.current += 1; | ||
| }); | ||
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| return ( | ||
| <Stack | ||
| direction='column' | ||
| justifyContent='center' | ||
| alignItems='center' | ||
| spacing={2} | ||
| > | ||
| {error && <p>{error}</p>} | ||
| {imageUrl && ( | ||
| <Avatar | ||
| alt='DisplayRandomPicture' | ||
| src={imageUrl} | ||
| variant='square' | ||
| sx={{ width: 300, height: 150, borderRadius: '10px' }} | ||
| /> | ||
| )} | ||
| <div> | ||
| {loading && <span>Loading...</span>} Component Render Count:{' '} | ||
| {renderCountRef.current} | ||
| </div> | ||
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| <SubmitButton | ||
| isSubmitting={loading} | ||
| submittingText='Fetching Picture ...' | ||
| > | ||
| <Button | ||
| variant='contained' | ||
| endIcon={<Send />} | ||
| onClick={fetchRandomPicture} | ||
| disabled={loading} | ||
| color='secondary' | ||
| > | ||
| Get Another Picture | ||
| </Button> | ||
| </SubmitButton> | ||
| {renderAlertBar()} | ||
| </Stack> | ||
| ); | ||
| }; | ||
|
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| export default DisplayRandomPicture; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| 'use client'; | ||
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| import React, { useState } from 'react'; | ||
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| import { AlertBar, AlertBarProps } from '@/components/shared/AlertBar'; | ||
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| export const useAlertBar = () => { | ||
| const [alertBarProps, setAlertBarProps] = useState<AlertBarProps>({ | ||
| message: '', | ||
| severity: 'info', | ||
| }); | ||
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| const renderAlertBar = () => ( | ||
| <AlertBar | ||
| onClose={() => setAlertBarProps({ message: '' })} | ||
| {...alertBarProps} | ||
| /> | ||
| ); | ||
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| return { | ||
| setAlertBarProps, | ||
| renderAlertBar, | ||
| }; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| import { renderHook } from '@testing-library/react'; | ||
| import React, { act } from 'react'; | ||
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| import { ClientProvider, useClientContext } from './useClientContext'; | ||
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| describe('useClientContext', () => { | ||
| it('should not be used outside ClientProvider', () => { | ||
| const { result } = renderHook(() => useClientContext()); | ||
| expect(() => { | ||
| result.current.updateClientCtx({ fetchCount: 66 }); | ||
| }).toThrow('Cannot be used outside ClientProvider'); | ||
| }); | ||
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| it('should provide the correct initial context values', () => { | ||
| const ctxValue = { | ||
| topError: 'SWW Error', | ||
| bmStatus: 'Live', | ||
| fetchCount: 85, | ||
| }; | ||
| const wrapper = ({ children }: { children: React.ReactNode }) => ( | ||
| <ClientProvider value={ctxValue}>{children}</ClientProvider> | ||
| ); | ||
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| const { result } = renderHook(() => useClientContext(), { | ||
| wrapper, | ||
| }); | ||
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| expect(result.current.topError).toBe(ctxValue.topError); | ||
| expect(result.current.fetchCount).toBe(ctxValue.fetchCount); | ||
| }); | ||
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| it('should update the context values', () => { | ||
| const ctxValue = { | ||
| topError: 'SWW Error', | ||
| fetchCount: 85, | ||
| }; | ||
| const wrapper = ({ children }: { children: React.ReactNode }) => ( | ||
| <ClientProvider value={ctxValue}>{children}</ClientProvider> | ||
| ); | ||
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| const { result } = renderHook(() => useClientContext(), { | ||
| wrapper, | ||
| }); | ||
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| const newCtxValue = { | ||
| topError: '', | ||
| }; | ||
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| act(() => { | ||
| result.current.updateClientCtx(newCtxValue); | ||
| }); | ||
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| expect(result.current.topError).toBe(newCtxValue.topError); | ||
| expect(result.current.fetchCount).toBe(ctxValue.fetchCount); | ||
| }); | ||
| }); |
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