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177 lines
4.9 KiB
Plaintext
177 lines
4.9 KiB
Plaintext
---
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title: Guia de Estilo
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icon: paintbrush
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description: Convenções de código e práticas recomendadas para contribuir para o Twenty.
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---
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## React
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### Apenas componentes funcionais
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Use sempre componentes funcionais TSX com exportações nomeadas.
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```tsx
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// ❌ Bad
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const MyComponent = () => {
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return <div>Hello World</div>;
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};
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export default MyComponent;
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// ✅ Good
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export function MyComponent() {
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return <div>Hello World</div>;
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};
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```
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### Propriedades
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Crie um tipo chamado `{ComponentName}Props`. Use desestruturação. Não use `React.FC`.
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```tsx
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type MyComponentProps = {
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name: string;
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};
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export const MyComponent = ({ name }: MyComponentProps) => <div>Hello {name}</div>;
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```
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### Sem spread de props de uma única variável
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```tsx
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// ❌ Bad
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const MyComponent = (props: MyComponentProps) => <Other {...props} />;
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// ✅ Good
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const MyComponent = ({ prop1, prop2 }: MyComponentProps) => <Other {...{ prop1, prop2 }} />;
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```
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## Gerenciamento de Estado
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### Átomos do Jotai para estado global
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```tsx
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import { createAtomState } from '@/ui/utilities/state/jotai/utils/createAtomState';
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import { useAtomState } from '@/ui/utilities/state/jotai/hooks/useAtomState';
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export const myAtomState = createAtomState<string>({
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key: 'myAtomState',
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defaultValue: 'default value',
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});
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```
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* Prefira átomos em vez de prop drilling
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* Não use `useRef` para estado — use `useState` ou átomos
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* Use famílias de átomos e seletores para listas
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### Evite re-renderizações desnecessárias
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* Extraia `useEffect` e busca de dados em componentes sidecar irmãos
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* Prefira manipuladores de eventos (`handleClick`, `handleChange`) em vez de `useEffect`
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* Não use `React.memo()` — corrija a causa raiz em vez disso
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* Limite o uso de `useCallback` / `useMemo`
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```tsx
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// ❌ Bad — useEffect in the same component causes re-renders
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export const Page = () => {
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const [data, setData] = useAtomState(dataState);
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const [dep] = useAtomState(depState);
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useEffect(() => { setData(dep); }, [dep]);
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return <div>{data}</div>;
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};
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// ✅ Good — extract into sibling
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export const PageData = () => {
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const [data, setData] = useAtomState(dataState);
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const [dep] = useAtomState(depState);
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useEffect(() => { setData(dep); }, [dep]);
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return <></>;
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};
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export const Page = () => {
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const [data] = useAtomState(dataState);
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return <div>{data}</div>;
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};
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```
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## TypeScript
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* **`type` em vez de `interface`** — mais flexível, mais fácil de compor
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* **Literais de string em vez de enums** — exceto para enums do codegen do GraphQL e APIs internas da biblioteca
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* **Sem `any`** — TypeScript estrito aplicado
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* **Sem imports de tipos** — use imports normais (aplicado pelo Oxlint `typescript/consistent-type-imports`)
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* **Use [Zod](https://github.com/colinhacks/zod)** para validação em tempo de execução de objetos não tipados
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## JavaScript
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```tsx
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// Use nullish-coalescing (??) instead of ||
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const value = process.env.MY_VALUE ?? 'default';
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// Use optional chaining
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onClick?.();
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```
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## Nomenclatura
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* **Variáveis**: camelCase, descritivas (`email` não `value`, `fieldMetadata` não `fm`)
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* **Constantes**: SCREAMING_SNAKE_CASE
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* **Tipos/Classes**: PascalCase
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* **Arquivos/diretórios**: kebab-case (`.component.tsx`, `.service.ts`, `.entity.ts`)
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* **Manipuladores de eventos**: `handleClick` (não `onClick` para a função manipuladora)
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* **Props do componente**: prefixe com o nome do componente (`ButtonProps`)
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* **Componentes estilizados**: prefixe com `Styled` (`StyledTitle`)
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## Estilização
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Use componentes estilizados do [Linaria](https://github.com/callstack/linaria). Use valores do tema — evite `px`, `rem` ou cores hardcoded.
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```tsx
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// ❌ Bad
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const StyledButton = styled.button`
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color: #333333;
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font-size: 1rem;
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margin-left: 4px;
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`;
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// ✅ Good
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const StyledButton = styled.button`
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color: ${({ theme }) => theme.font.color.primary};
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font-size: ${({ theme }) => theme.font.size.md};
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margin-left: ${({ theme }) => theme.spacing(1)};
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`;
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```
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## Importações
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Use aliases em vez de caminhos relativos:
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```tsx
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// ❌ Bad
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import { Foo } from '../../../../../testing/decorators/Foo';
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// ✅ Good
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import { Foo } from '~/testing/decorators/Foo';
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import { Bar } from '@/modules/bar/components/Bar';
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```
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## Estrutura de pastas
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```
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front
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└── modules/ # Feature modules
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│ └── module1/
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│ ├── components/
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│ ├── constants/
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│ ├── contexts/
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│ ├── graphql/ (fragments, queries, mutations)
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│ ├── hooks/
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│ ├── states/ (atoms, selectors)
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│ ├── types/
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│ └── utils/
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└── pages/ # Route-level components
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└── ui/ # Reusable UI components (display, input, feedback, ...)
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```
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* Módulos podem importar de outros módulos, mas `ui/` deve permanecer sem dependências
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* Use subpastas `internal/` para código privado do módulo
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* Componentes com menos de 300 linhas, serviços com menos de 500 linhas
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