jira-cli/internal/cmdutil/datetime.go

70 lines
1.9 KiB
Go

package cmdutil
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/ankitpokhrel/jira-cli/pkg/jira"
)
// Supported datetime layouts.
const (
DateLayout = "2006-01-02"
DateTimeLayout = "2006-01-02 15:04:05"
ShortDateLayout = "20060102"
ShortDateTimeLayout = "20060102150405"
)
var (
// ErrInvlalidTimezone is returned if timezone is not in a valid IANA timezone format.
ErrInvlalidTimezone = fmt.Errorf("timezone should be a valid IANA timezone, eg: Asia/Kathmandu, Europe/Berlin etc")
// ErrorInvalidDateTime is returned when datetime string is invalid.
ErrorInvalidDateTime = fmt.Errorf("datetime string should be in a valid format, eg: 2022-01-02 10:10:05 or 2022-01-02")
)
// DateStringToJiraFormatInLocation parses a standard string to jira compatible RFC3339 datetime format.
//
//nolint:gomnd
func DateStringToJiraFormatInLocation(value string, timezone string) (string, error) {
if value == "" || value == "0" || value == "0000-00-00 00:00:00" || value == "0000-00-00" || value == "00:00:00" {
return "", nil
}
if _, err := time.Parse(jira.RFC3339MilliLayout, value); err == nil {
return value, nil
}
layout := DateTimeLayout
if _, err := strconv.ParseInt(value, 10, 64); err == nil {
switch {
case len(value) == 8:
layout = ShortDateLayout
case len(value) == 14:
layout = ShortDateTimeLayout
}
} else if len(value) == 10 && strings.Count(value, "-") == 2 {
layout = DateLayout
}
t, err := parseByLayout(layout, value, timezone)
if err != nil {
return "", err
}
return t.Format(jira.RFC3339MilliLayout), nil
}
// parseByLayout parses a string as a time by layout in given timezone.
func parseByLayout(layout, value string, timezone string) (*time.Time, error) {
loc, err := time.LoadLocation(timezone)
if err != nil {
return nil, ErrInvlalidTimezone
}
t, err := time.ParseInLocation(layout, value, loc)
if err != nil {
return nil, ErrorInvalidDateTime
}
return &t, nil
}