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import { Component } from 'react';
import { withApollo, graphql, compose } from 'react-apollo';
import styled from 'styled-components';
import Pagination from './Pagination';
import Item from './Item';
import { itemEnhancer } from '../enhancers/enhancers';
import { ALL_ITEMS_QUERY, DELETE_ITEM_MUTATION } from '../queries';
const Title = styled.h1`
font-size: 10px;
`;
const Items = styled.div`
display: grid;
grid-template-columns: repeat(4, 1fr);
grid-gap: 20px;
`;
class ItemList extends Component {
componentDidMount() {
this.prefetchNextItems(this.props.page);
}
componentWillReceiveProps(nextProps) {
// update the next items if the page prop changed
if (this.props.page !== nextProps.page) {
this.prefetchNextItems(nextProps.page);
}
}
prefetchNextItems = currentPage => {
const page = currentPage + 1;
console.log(`Prefetching Next items! Page ${page}`);
this.props.client.query({
query: ALL_ITEMS_QUERY,
variables: {
skip: page * 3 - 3,
},
});
};
render() {
console.log(this.props);
// 1
if (this.props.itemsQuery && this.props.itemsQuery.loading) {
return <div>Loading</div>;
}
// 2
if (this.props.itemsQuery && this.props.itemsQuery.error) {
console.log(this.props.itemsQuery.error);
return <div>Error</div>;
}
console.log(this.props);
// 3
const itemsToRender = this.props.itemsQuery.items;
return (
<div>
<Pagination page={this.props.page} />
<Title>Items For Sale</Title>
<Items key={this.props.page}>{itemsToRender.map((item, i) => <Item key={item.id} item={item} />)}</Items>
</div>
);
}
}
export default withApollo(compose(itemEnhancer)(ItemList));
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