36 lines
551 B
Go
36 lines
551 B
Go
package timezone
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import (
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"errors"
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"strings"
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"time"
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)
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const Default = "UTC"
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var (
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ErrEmpty = errors.New("timezone is required")
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ErrInvalid = errors.New("timezone must be a valid IANA timezone")
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)
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func Normalize(name string) (string, error) {
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tz := strings.TrimSpace(name)
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if tz == "" {
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return "", ErrEmpty
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}
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loc, err := time.LoadLocation(tz)
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if err != nil {
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return "", ErrInvalid
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}
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return loc.String(), nil
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}
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func WithDefault(name string) string {
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tz := strings.TrimSpace(name)
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if tz == "" {
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return Default
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}
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return tz
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}
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