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Add price charts to Converter and Auction screens
Closes #414
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Pablo Enrici
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Nov 21, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| import React, { Component } from 'react' | ||
| import { ChartCard } from './common' | ||
| import shrinkArray from 'shrink-array' | ||
| import { connect } from 'react-redux' | ||
| import config from '../config' | ||
| import moment from 'moment' | ||
| import last from 'shrink-array/last' | ||
|
|
||
| const sevenDaysAgo = () => | ||
| moment() | ||
| .subtract({ days: 7 }) | ||
| .unix() | ||
|
|
||
| class AuctionChartCard extends Component { | ||
| state = { | ||
| chartStatus: 'pending', | ||
| chartData: [] | ||
| } | ||
|
|
||
| // eslint-disable-next-line arrow-body-style | ||
| retrieveData = () => { | ||
| this.setState({ chartStatus: 'pending', chartData: [] }) | ||
|
|
||
| const from = sevenDaysAgo() | ||
| const now = moment().unix() | ||
|
|
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| fetch(`${config.MET_API_URL}/history?from=${from}&to=${now}`) | ||
| .then(response => response.json()) | ||
| .then(chartData => { | ||
| if (!this._isMounted) return | ||
| this.setState({ | ||
| chartStatus: 'success', | ||
| chartData: chartData.map(point => ({ | ||
| x: point.timestamp, | ||
| y: parseInt(point.currentAuctionPrice, 10) | ||
| })) | ||
| }) | ||
| }) | ||
| .catch(() => { | ||
| if (!this._isMounted) return | ||
| this.setState({ chartStatus: 'failure', chartData: [] }) | ||
| }) | ||
| } | ||
|
|
||
| componentDidMount() { | ||
| this._isMounted = true | ||
| this.retrieveData() | ||
| } | ||
|
|
||
| componentWillUnmount() { | ||
| this._isMounted = false | ||
| } | ||
|
|
||
| static getDerivedStateFromProps(props, state) { | ||
| const point = { | ||
| y: parseInt(props.auction.currentPrice, 10), | ||
| x: moment().unix() | ||
| } | ||
| const from = sevenDaysAgo() | ||
| const newChartData = state.chartData.concat(point).filter(p => p.x >= from) | ||
|
|
||
| return { | ||
| chartData: | ||
| newChartData.length > 500 | ||
| ? shrinkArray(newChartData, 500, last) | ||
| : newChartData | ||
| } | ||
| } | ||
|
|
||
| render() { | ||
| return ( | ||
| <ChartCard | ||
| chartStatus={this.state.chartStatus} | ||
| chartLabel="Auction Price (last 7 days)" | ||
| chartData={this.state.chartData} | ||
| onRetry={this.retrieveData} | ||
| /> | ||
| ) | ||
| } | ||
| } | ||
|
|
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| const mapStateToProps = state => ({ | ||
| auction: state.auction.status | ||
| }) | ||
|
|
||
| export default connect(mapStateToProps)(AuctionChartCard) |
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