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package cobol
import (
"errors"
"fmt"
"time"
"google.golang.org/protobuf/types/known/timestamppb"
)
// you will be happier if you just use this everywhere
func Time(someTimeAgoOrLaterNotsure any) string {
guess, t, err := TimeCheck(someTimeAgoOrLaterNotsure)
if errors.Is(err, Broken) {
if len(guess) > 0 {
return fmt.Sprintf("%-15s", guess)
}
return "bad"
}
if errors.Is(err, NoTime) {
if len(guess) > 0 {
return fmt.Sprintf("%-15s", guess)
}
return "nope"
}
if len(guess) > 0 {
return fmt.Sprintf("%-15s", guess)
}
return FormatTime(*t)
}
func TimeLocal(someTimeAgoOrLaterNotsure any) string {
guess, t, err := TimeCheck(someTimeAgoOrLaterNotsure)
if errors.Is(err, Broken) {
if len(guess) > 0 {
return fmt.Sprintf("%-15s", guess)
}
return "bad"
}
if errors.Is(err, NoTime) {
if len(guess) > 0 {
return fmt.Sprintf("%-15s", guess)
}
return "nope"
}
return FormatTimeLocal(*t)
}
func GetTime(mightBeTimeMightNotBeTime any) (time.Time, error) {
_, t, err := TimeCheck(mightBeTimeMightNotBeTime)
if t == nil {
var emptyTime time.Time
return emptyTime, err
}
return *t, err
}
func TimeCheck(maybeTime any) (string, *time.Time, error) {
var guess string
var t *time.Time
var err error
switch v := maybeTime.(type) {
case time.Time:
// If the type is time.Time, 'v' is now a time.Time variable.
// t = v
return FormatTime(v), &v, err
case string:
// The type is string, so 'v' is a string variable.
t, err = doTimeString(v)
if t != nil {
return "", t, err
}
if err != nil {
guess = v
}
case *timestamppb.Timestamp:
// If it's a protobuf Timestamp pointer (most common case),
// 'v' is a *timestamppb.Timestamp. We must convert it.
// It's also good to check if it's a valid timestamp.
if v.IsValid() {
newt := v.AsTime()
return FormatTime(newt), &newt, nil
} else {
err = errors.New("pb time invalid")
}
case timestamppb.Timestamp:
// Handle the less common case of a value type instead of a pointer.
if v.IsValid() {
newt := v.AsTime()
return FormatTime(newt), &newt, nil
}
default:
err = errors.Join(err, NoTime)
}
return guess, t, err
}
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