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import { colors, Styles } from '@0xproject/react-shared';
import * as _ from 'lodash';
import { GridList } from 'material-ui/GridList';
import * as React from 'react';
import { RelayerGridTile } from 'ts/components/relayer_index/relayer_grid_tile';
import { WebsiteBackendRelayerInfo } from 'ts/types';
import { backendClient } from 'ts/utils/backend_client';
export interface RelayerIndexProps {
networkId: number;
}
interface RelayerIndexState {
relayerInfos?: WebsiteBackendRelayerInfo[];
error?: Error;
}
const styles: Styles = {
root: {
width: '100%',
},
item: {
backgroundColor: colors.white,
borderBottomRightRadius: 10,
borderBottomLeftRadius: 10,
borderTopRightRadius: 10,
borderTopLeftRadius: 10,
boxShadow: `0px 4px 6px ${colors.walletBoxShadow}`,
overflow: 'hidden',
padding: 4,
},
};
const CELL_HEIGHT = 290;
const NUMBER_OF_COLUMNS = 4;
const GRID_PADDING = 20;
export class RelayerIndex extends React.Component<RelayerIndexProps, RelayerIndexState> {
private _isUnmounted: boolean;
constructor(props: RelayerIndexProps) {
super(props);
this._isUnmounted = false;
this.state = {
relayerInfos: undefined,
error: undefined,
};
}
public componentWillMount() {
// tslint:disable-next-line:no-floating-promises
this._fetchRelayerInfosAsync();
}
public componentWillUnmount() {
this._isUnmounted = true;
}
public render() {
const readyToRender = _.isUndefined(this.state.error) && !_.isUndefined(this.state.relayerInfos);
if (readyToRender) {
return (
<div style={styles.root}>
<GridList
cellHeight={CELL_HEIGHT}
cols={NUMBER_OF_COLUMNS}
padding={GRID_PADDING}
style={styles.gridList}
>
{this.state.relayerInfos.map((relayerInfo: WebsiteBackendRelayerInfo) => (
<RelayerGridTile
key={relayerInfo.name}
relayerInfo={relayerInfo}
networkId={this.props.networkId}
/>
))}
</GridList>
</div>
);
} else {
// TODO: loading and error states with a scrolling container
return null;
}
}
private async _fetchRelayerInfosAsync(): Promise<void> {
try {
const relayerInfos = await backendClient.getRelayerInfosAsync();
if (!this._isUnmounted) {
this.setState({
relayerInfos,
});
}
} catch (error) {
if (!this._isUnmounted) {
this.setState({
error,
});
}
}
}
}
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