50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package timeutil
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import (
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"fmt"
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"strings"
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"time"
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)
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const DateLayout = "2006-01-02"
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const LocalDateTimeLayout = "2006-01-02T15:04"
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func LoadLocation(name string) (*time.Location, error) {
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location, err := time.LoadLocation(name)
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if err == nil {
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return location, nil
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}
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if strings.Contains(name, "/") {
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return nil, fmt.Errorf("load timezone %q: %w", name, err)
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}
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location, chicagoErr := time.LoadLocation("America/" + name)
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if chicagoErr == nil {
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return location, nil
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}
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return nil, fmt.Errorf("load timezone %q: %w", name, err)
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}
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func LocalDate(now time.Time, location *time.Location) time.Time {
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local := now.In(location)
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return time.Date(local.Year(), local.Month(), local.Day(), 0, 0, 0, 0, location)
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}
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func ParseLocalDate(value string, location *time.Location) (time.Time, error) {
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parsed, err := time.ParseInLocation(DateLayout, value, location)
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if err != nil {
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return time.Time{}, fmt.Errorf("parse date %q as YYYY-MM-DD: %w", value, err)
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}
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return parsed, nil
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}
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func ParseStormTime(value string, location *time.Location) (time.Time, error) {
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if parsed, err := time.Parse(time.RFC3339, value); err == nil {
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return parsed, nil
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}
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parsed, err := time.ParseInLocation(LocalDateTimeLayout, value, location)
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if err != nil {
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return time.Time{}, fmt.Errorf("parse storm time %q as YYYY-MM-DDTHH:MM or RFC3339: %w", value, err)
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}
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return parsed, nil
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}
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