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import React, { Component } from 'react'
import { graphql, compose } from 'react-apollo'
import UpdateItem from './UpdateItem';
import Link from 'next/link';
import styled from 'styled-components';
import { ALL_ITEMS_QUERY, DELETE_ITEM_MUTATION } from '../queries';
const Title = styled.h1`
font-size: 50px;
`;
class ItemList extends Component {
render() {
// 1
if (this.props.allLinksQuery && this.props.allLinksQuery.loading) {
return <div>Loading</div>
}
// 2
if (this.props.allLinksQuery && this.props.allLinksQuery.error) {
console.log(this.props.allLinksQuery.error)
return <div>Error</div>
}
// 3
const itemsToRender = this.props.allLinksQuery.allItems
return (
<div>
<Title>Items For Sale</Title>
{itemsToRender.map((item,i) => (
<div className="item" key={i}>
<hr/>
{ item.image ? <img src={`https://images.graph.cool/v1/cj5xz8szs28930145gct82bdj/${item.image.secret}/300x300`} /> : null }
<h3>{item.title}</h3>
<p>{item.description}</p>
<Link href={{
pathname: '/admin/update',
query: { id: item.id }
}}>
<a>Edit {item.id}</a>
</Link>
<UpdateItem id={item.id} />
<button onClick={() => this.props.removeItemMutation({ variables: { id: item.id }})}>× Delete item</button>
</div>
))}
</div>
)
}
}
// 1
// We export the graphQL HOC - this will fetch the data and inject it into the ItemList compeont via props
// Create some Enhancers
const itemsEnahncer = graphql(ALL_ITEMS_QUERY, { name: 'allLinksQuery' });
const deleteItemEnhancer = graphql(DELETE_ITEM_MUTATION, {
name: 'removeItemMutation',
options: {
update: (proxy, { data: { deleteItem } }) => {
// grab the data from our cache
const data = proxy.readQuery({ query: ALL_ITEMS_QUERY });
// filter out the delted item
data.allItems = data.allItems.filter(item => item.id !== deleteItem.id);
// and then "set state" (update cache), so it will update whereever we have used this data on the page
proxy.writeQuery({ query: ALL_ITEMS_QUERY, data });
},
}
});
export default compose(itemsEnahncer, deleteItemEnhancer)(ItemList)
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