Files
metrics/source/plugins/stargazers/worldmap/index.mjs

63 lines
2.5 KiB
JavaScript

//Imports
import { Client as Gmap } from "@googlemaps/google-maps-services-js"
import color from "color"
import * as d3 from "d3"
import D3Node from "d3-node"
/**
* Worldmap
* Mostly ported from https://github.com/dyatko/worldstar
* License: https://raw.githubusercontent.com/dyatko/worldstar/master/LICENSE
*/
export default async function(login, {locations, sample, imports, token}) {
//Parse geocodes
let stars = new Map()
if (token) {
const cache = new Map()
const get = new Gmap()
locations = imports.shuffle(locations.filter(string => string).map(string => string.toLocaleLowerCase())).slice(0, sample || Infinity)
for (const location of locations) {
console.debug(`metrics/compute/${login}/plugins > stargazers > worldmap > looking for ${location}`)
if (!cache.has(location)) {
try {
const {data: {results}} = await get.geocode({params: {address: location, key: token}})
const country = results.at(0).address_components.find(({types}) => types.includes("country"))
cache.set(location, country.short_name ?? country.long_name)
console.debug(`metrics/compute/${login}/plugins > stargazers > worldmap > ${location} resolved to ${cache.get(location)}`)
}
catch (error) {
console.debug(`metrics/compute/${login}/plugins > stargazers > worldmap > failed to resolve ${location}: ${error}`)
}
}
const code = cache.get(location)
stars.set(code, (stars.get(code) ?? 0) + 1)
}
}
else {
throw {error: {message: "Google Maps API token is not set"}}
}
//Generate SVG
const d3n = new D3Node()
const svg = d3n.createSVG(480, 315)
const countries = JSON.parse(await imports.fs.readFile(imports.paths.join(imports.__module(import.meta.url), "atlas/50m_countries.geojson")))
const geopath = d3.geoPath(d3.geoMercator().fitWidth(svg.attr("width"), countries))
const splits = [...new Set([0, ...stars.values()])].sort((a, b) => a - b)
svg
.append("g")
.selectAll("path")
.data(countries.features)
.join("path")
.attr("id", ({id}) => id)
.style("fill", ({properties: {iso_a2, wb_a2, sov_a3}}) => {
const code = iso_a2?.match(/[A-Z]{2}/) ? iso_a2 : wb_a2?.match(/[A-Z]{2}/) ? wb_a2 : sov_a3?.substr(0, 2) ?? ""
const value = stars.get(code)
return color("#216e39").mix(color("#ffffff"), 1 - Math.max(0, splits.indexOf(value)) / splits.length).hex()
})
.style("stroke", "#afafaf")
.style("stroke-width", "0.6px")
.attr("d", geopath)
return d3n.svgString()
}