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import React, { Component } from 'react'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import { toArray } from '../util'
import C3Chart from 'react-c3js'
import 'c3/c3.css'
import './chart.css'
import { rainbow, colorblindSafeRainbow, topCountryCount, otherCountriesLabel } from './constants'
class CountriesByYearChart extends Component {
render() {
const { payload } = this.props
const { paper, citations } = payload.data
if (!citations.length) return null
const years = {}
const countries = {}
citations.forEach(citation => {
let { year, addresses } = citation
if (!year || !parseInt(year)) return
year = parseInt(year)
years[year] = years[year] || {}
addresses.forEach(address => {
const { country } = address
if (!country) return
if (!(country in countries)) {
countries[country] = 1
} else {
countries[country] += 1
}
if (country in years[year]) {
years[year][country] += 1
} else {
years[year][country] = 1
}
})
})
let yearList = Object.keys(years).map(year => parseInt(year)).sort()
for (let i = yearList[0]; i < yearList[-1]; i++) {
if (!(i in years)) {
years[i] = {}
}
}
yearList = Object.keys(years).map(year => parseInt(year)).sort()
Object.keys(countries).forEach(country => {
yearList.forEach(year => {
if (!(country in years[year])) years[year][country] = 0
})
})
// figure out the top N countries in the dataset
const countriesByCount = Object.keys(countries).sort((a,b) => countries[b] - countries[a])
// console.log(countriesByCount)
let topCountries = countriesByCount.slice(0, topCountryCount)
let otherCountries = countriesByCount.slice(topCountryCount)
let citationCountsByYear =
[ ['x'].concat(yearList.map(year => String(year))) ]
.concat(
topCountries
.map(country =>
[country]
.concat(
yearList
.map(year => years[year][country])
)
)
)
if (otherCountries.length) {
citationCountsByYear.push(
[otherCountriesLabel].concat(
yearList.map(year => otherCountries.reduce((a,b) => (a + years[year][b]), 0))
)
)
}
let maxCitationsInAYear = 0
let currentSum = 0
// for each year...
for (let j = 1; j < citationCountsByYear[0].length; j++) {
// for each country
currentSum = 0
for (let i = 1; i < citationCountsByYear.length; i++) {
currentSum += citationCountsByYear[i][j]
}
maxCitationsInAYear = Math.max(currentSum, maxCitationsInAYear)
}
let ticks = []
for (let i = 0; i < maxCitationsInAYear; i += 50) {
ticks.push(i)
}
if (ticks[ticks.length - 1] < maxCitationsInAYear) {
ticks.push('')
}
const colorPattern = rainbow
return (
<div className='chart'>
<C3Chart
data={{
x: 'x',
columns: citationCountsByYear,
type: 'bar',
groups: [ topCountries.concat(otherCountriesLabel) ],
}}
axis={{
x: {
type: 'category' // this needed to load string x value
},
y: {
show: false,
},
y2: {
tick: {
values: ticks,
},
default: [0, maxCitationsInAYear * 286 / 261],
show: true,
}
}}
legend={{
position: 'right'
}}
color={{
pattern: colorPattern
}}
tooltip={{
contents: d => {
const countriesByYearLookup = years[yearList[d[0].x]]
let countriesByYear = Object.keys(countriesByYearLookup).map(country => [country, countriesByYearLookup[country]]).sort((a,b) => b[1] - a[1])
let topCountriesForThisYear = countriesByYear.slice(0, topCountryCount)
let bottomTotal = countriesByYear.slice(topCountryCount).reduce((a,b) => (a + b[1]), 0)
// console.log(topCountriesForThisYear)
topCountriesForThisYear.push([otherCountriesLabel, bottomTotal])
const tableRows = topCountriesForThisYear.filter(pair => !!pair[1]).map(([country, total]) => {
let colorIndex = topCountries.indexOf(country)
if (colorIndex < 0) colorIndex = colorPattern.length - 1
const countryColor = colorPattern[colorIndex]
return [
"<tr>",
"<td>",
"<span style='background-color:" + countryColor + "' class='swatch'></span>",
country,
"</td>",
"<td>",
total,
"</td>",
"</tr>",
].join('')
})
return [
"<table class='c3-tooltip'>",
...tableRows,
"</table>",
].join('')
}
}}
/>
{paper.vetting &&
<div className='caption'>
{paper.name}
{' dataset citations per country per year. We confirmed use of the dataset in '}
{citations.length}
{' papers, out of '}
{paper.vetting.total}
{' citations vetted.'}
</div>
}
</div>
)
}
}
export default CountriesByYearChart
|
