woocommerce/plugins/woocommerce-blocks/assets/js/hocs/with-product-variations.js

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/**
* External dependencies
*/
import { Component } from '@wordpress/element';
import { createHigherOrderComponent } from '@wordpress/compose';
import PropTypes from 'prop-types';
import isShallowEqual from '@wordpress/is-shallow-equal';
/**
* Internal dependencies
*/
import { getProductVariations } from '@woocommerce/block-components/utils';
import { formatError } from '../base/utils/errors.js';
const withProductVariations = createHigherOrderComponent(
( OriginalComponent ) => {
class WrappedComponent extends Component {
state = {
error: null,
loading: false,
variations: {},
};
componentDidMount() {
const { selected, showVariations } = this.props;
if ( selected && showVariations ) {
this.loadVariations();
}
}
componentDidUpdate( prevProps ) {
const { isLoading, selected, showVariations } = this.props;
if (
showVariations &&
( ! isShallowEqual( prevProps.selected, selected ) ||
( prevProps.isLoading && ! isLoading ) )
) {
this.loadVariations();
}
}
loadVariations = () => {
const { products } = this.props;
const { loading, variations } = this.state;
if ( loading ) {
return;
}
const expandedProduct = this.getExpandedProduct();
if ( ! expandedProduct || variations[ expandedProduct ] ) {
return;
}
const productDetails = products.find(
( findProduct ) => findProduct.id === expandedProduct
);
if (
! productDetails.variations ||
productDetails.variations.length === 0
) {
this.setState( {
variations: {
...this.state.variations,
[ expandedProduct ]: null,
},
loading: false,
error: null,
} );
return;
}
this.setState( { loading: true } );
getProductVariations( expandedProduct )
.then( ( expandedProductVariations ) => {
const newVariations = expandedProductVariations.map(
( variation ) => ( {
...variation,
parent: expandedProduct,
} )
);
this.setState( {
variations: {
...this.state.variations,
[ expandedProduct ]: newVariations,
},
loading: false,
error: null,
} );
} )
.catch( async ( e ) => {
const error = await formatError( e );
this.setState( {
variations: {
...this.state.variations,
[ expandedProduct ]: null,
},
loading: false,
error,
} );
} );
};
isProductId( itemId ) {
const { products } = this.props;
return products.some( ( p ) => p.id === itemId );
}
findParentProduct( variationId ) {
const { products } = this.props;
const parentProduct = products.filter(
( p ) =>
p.variations && p.variations.includes( variationId )
);
return parentProduct[ 0 ].id;
}
getExpandedProduct() {
const { isLoading, selected, showVariations } = this.props;
if ( ! showVariations ) {
return null;
}
let selectedItem =
selected && selected.length ? selected[ 0 ] : null;
// If there is no selected item, check if there was one in the past, so we
// can keep the same product expanded.
if ( selectedItem ) {
this.prevSelectedItem = selectedItem;
} else if ( this.prevSelectedItem ) {
// If previous selected item was a variation
if (
! isLoading &&
! this.isProductId( this.prevSelectedItem )
) {
selectedItem = this.prevSelectedItem;
}
}
if ( ! isLoading && selectedItem ) {
return this.isProductId( selectedItem )
? selectedItem
: this.findParentProduct( selectedItem );
}
return null;
}
render() {
const { error: propsError, isLoading } = this.props;
const { error, loading, variations } = this.state;
return (
<OriginalComponent
{ ...this.props }
error={ error || propsError }
expandedProduct={ this.getExpandedProduct() }
isLoading={ isLoading }
variations={ variations }
variationsLoading={ loading }
/>
);
}
static propTypes = {
selected: PropTypes.array,
showVariations: PropTypes.bool,
};
static defaultProps = {
selected: [],
showVariations: false,
};
}
return WrappedComponent;
},
'withProductVariations'
);
export default withProductVariations;