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App.tsx
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App.tsx
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import React, { useState } from 'react';
import './App.css';
import { createView, ViewModelProps } from 'react-create-view';
import { faker } from '@faker-js/faker';
type HomeModel = {
name: string;
getName: () => Promise<void>;
};
type FailureModel = {
error: Error;
onRetry?: () => void;
};
type HomeViewModelProps = ViewModelProps<HomeModel, FailureModel>;
const useHomeView = (): HomeViewModelProps => {
const [isLoading, setIsLoading] = useState(false);
const [name, setName] = useState('Chris Fields');
const [numClicks, setNumClicks] = useState(1);
const getName = async () => {
setIsLoading(true);
setNumClicks((prev) => prev + 1);
return new Promise<void>((res) => {
setTimeout(() => {
setName(faker.name.fullName());
setIsLoading(false);
res(undefined);
}, 1000 * 1);
});
};
const shouldError = numClicks % 3 === 0;
if (shouldError) {
return {
status: 'error',
model: {
error: new Error('Failed to get a name'),
onRetry: getName,
},
};
}
if (isLoading) {
return {
status: 'loading',
};
}
return {
status: 'success',
model: {
name,
getName,
},
};
};
const HomeView = createView<HomeModel, FailureModel>({
Success({ name, getName }) {
return (
<div>
<h1>{name}</h1>
<button onClick={getName}>Change Name</button>
</div>
);
},
Loading() {
return <h1>Loading...</h1>;
},
Failure({ error, onRetry }) {
return (
<div>
<h1 style={{ color: 'red' }}>{error.message}</h1>
<button onClick={onRetry}>Change Name</button>
</div>
);
},
});
function App() {
const viewModel = useHomeView();
return (
<div className="App">
<HomeView {...viewModel} />
</div>
);
}
export default App;