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var check = require('check-types');
var iso3166 = require('iso3166-1');
function sanitize(raw, clean) {
// error & warning messages
var messages = { errors: [], warnings: [] };
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// target input param
var country = raw['boundary.country'];
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// param 'boundary.country' is optional and should not
// error when simply not set by the user
if (check.assigned(country)){
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// must be valid string
if (!check.nonEmptyString(country)) {
messages.errors.push('boundary.country is not a string');
}
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// must be a valid ISO 3166 code
else if (!containsIsoCode(country.toUpperCase())) {
messages.errors.push(country + ' is not a valid ISO2/ISO3 country code');
}
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// valid ISO 3166 country code, set alpha3 code on 'clean.boundary.country'
else {
// the only way for boundary.country to be assigned is if input is
// a string and a known ISO2 or ISO3
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clean['boundary.country'] = iso3166.to3(country.toUpperCase());
}
}
return messages;
}
function containsIsoCode(isoCode) {
return iso3166.list().some(function(row) {
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return row.alpha2 === isoCode || row.alpha3 === isoCode;
});
}
module.exports = sanitize;