package language
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import (
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"os"
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"strings"
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"voicesnap/internal/model"
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)
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type SystemLocaleDetector interface {
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Detect() string
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}
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type SystemDetector struct{}
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func NewSystemDetector() SystemDetector {
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return SystemDetector{}
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}
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func (SystemDetector) Detect() string {
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if locale := platformLocale(); strings.TrimSpace(locale) != "" {
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return locale
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}
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for _, key := range []string{"LC_ALL", "LC_MESSAGES", "LANG"} {
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if locale := os.Getenv(key); strings.TrimSpace(locale) != "" {
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return locale
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}
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}
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return ""
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}
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func NormalizeLocale(locale string) string {
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normalized := strings.ToLower(strings.TrimSpace(locale))
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normalized = strings.ReplaceAll(normalized, "_", "-")
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if idx := strings.Index(normalized, "."); idx >= 0 {
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normalized = normalized[:idx]
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}
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switch {
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case strings.HasPrefix(normalized, "zh"):
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return model.DefaultLanguageID
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case strings.HasPrefix(normalized, "en"):
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return model.EnglishLanguageID
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default:
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return model.EnglishLanguageID
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}
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}
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