Ilia Denisov
64 lines
1.9 KiB
Go
64 lines
1.9 KiB
Go
package geo
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import "strings"
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// countryToLanguage maps an uppercase ISO 3166-1 alpha-2 country code to
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// an ISO 639-1 lowercase language code. The set is intentionally minimal
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// — covering the top-traffic Galaxy locales — and is consulted as a
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// fallback when neither the request body nor the Accept-Language header
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// supplied a locale at send-email-code. Unknown countries map to the
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// empty string so the auth flow can default to "en".
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//
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// The mapping is intentionally hard-coded rather than derived from the
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// GeoLite2 database: countries with multiple official languages collapse
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// to the single most common UI locale to keep the registration path
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// deterministic. The implementation may revise this table without changing the
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// surface auth depends on.
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var countryToLanguage = map[string]string{
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// English-default territories and the platform fallback.
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"US": "en", "GB": "en", "AU": "en", "NZ": "en", "IE": "en", "CA": "en",
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// Western Europe.
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"DE": "de", "AT": "de", "CH": "de",
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"FR": "fr", "BE": "fr", "LU": "fr",
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"ES": "es", "MX": "es", "AR": "es", "CL": "es", "CO": "es",
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"IT": "it",
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"PT": "pt", "BR": "pt",
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"NL": "nl",
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// Central / Eastern Europe.
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"PL": "pl",
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"RU": "ru", "BY": "ru", "KZ": "ru",
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"UA": "uk",
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"CZ": "cs",
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"SK": "sk",
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"HU": "hu",
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"RO": "ro",
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"BG": "bg",
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// Northern Europe.
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"SE": "sv",
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"NO": "no",
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"DK": "da",
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"FI": "fi",
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// Asia.
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"JP": "ja",
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"KR": "ko",
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"CN": "zh", "TW": "zh", "HK": "zh", "SG": "zh",
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"VN": "vi",
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"TH": "th",
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"ID": "id",
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"IN": "en",
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"IL": "he",
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"TR": "tr",
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// Middle East and North Africa.
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"SA": "ar", "AE": "ar", "EG": "ar",
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}
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// languageForCountry returns the ISO 639-1 language code mapped to
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// country, or "" when no mapping is known. country is normalised to
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// uppercase before lookup.
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func languageForCountry(country string) string {
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if country == "" {
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return ""
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}
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return countryToLanguage[strings.ToUpper(strings.TrimSpace(country))]
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}
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