add country data

tools/gen-countries.js

@@ -0,0 +1,14 @@
+const fs = require('fs')
+const _ = require('lodash/fp')
+
+const rawCountries = require('../raw-countries.json')
+
+const topCodes = ['US', 'GB', 'CA', 'AU']
+
+const countries = rawCountries
+.map(r => ({code: r.cca2, display: r.name.common}))
+
+const topCountries = topCodes.map(c => countries.find(_.matchesProperty('code', c)))
+const final = _.uniqBy(_.get('code'), _.concat(topCountries, countries))
+
+fs.writeFileSync('countries.json', JSON.stringify(final))