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package funcs
import (
"fmt"
"strconv"
"strings"
"sync"
gotime "time"
"github.com/hairyhenderson/gomplate/v3/conv"
"github.com/hairyhenderson/gomplate/v3/time"
)
var (
timeNS *TimeFuncs
timeNSInit sync.Once
)
// TimeNS -
func TimeNS() *TimeFuncs {
timeNSInit.Do(func() {
timeNS = &TimeFuncs{
ANSIC: gotime.ANSIC,
UnixDate: gotime.UnixDate,
RubyDate: gotime.RubyDate,
RFC822: gotime.RFC822,
RFC822Z: gotime.RFC822Z,
RFC850: gotime.RFC850,
RFC1123: gotime.RFC1123,
RFC1123Z: gotime.RFC1123Z,
RFC3339: gotime.RFC3339,
RFC3339Nano: gotime.RFC3339Nano,
Kitchen: gotime.Kitchen,
Stamp: gotime.Stamp,
StampMilli: gotime.StampMilli,
StampMicro: gotime.StampMicro,
StampNano: gotime.StampNano,
}
})
return timeNS
}
// AddTimeFuncs -
func AddTimeFuncs(f map[string]interface{}) {
f["time"] = TimeNS
}
// TimeFuncs -
type TimeFuncs struct {
ANSIC string
UnixDate string
RubyDate string
RFC822 string
RFC822Z string
RFC850 string
RFC1123 string
RFC1123Z string
RFC3339 string
RFC3339Nano string
Kitchen string
Stamp string
StampMilli string
StampMicro string
StampNano string
}
// ZoneName - return the local system's time zone's name
func (f *TimeFuncs) ZoneName() string {
return time.ZoneName()
}
// ZoneOffset - return the local system's time zone's name
func (f *TimeFuncs) ZoneOffset() int {
return time.ZoneOffset()
}
// Parse -
func (f *TimeFuncs) Parse(layout string, value interface{}) (gotime.Time, error) {
return gotime.Parse(layout, conv.ToString(value))
}
// ParseLocal -
func (f *TimeFuncs) ParseLocal(layout string, value interface{}) (gotime.Time, error) {
return gotime.ParseInLocation(layout, conv.ToString(value), gotime.Local)
}
// ParseInLocation -
func (f *TimeFuncs) ParseInLocation(layout, location string, value interface{}) (gotime.Time, error) {
loc, err := gotime.LoadLocation(location)
if err != nil {
return gotime.Time{}, err
}
return gotime.ParseInLocation(layout, conv.ToString(value), loc)
}
// Now -
func (f *TimeFuncs) Now() gotime.Time {
return gotime.Now()
}
// Unix - convert UNIX time (in seconds since the UNIX epoch) into a time.Time for further processing
// Takes a string or number (int or float)
func (f *TimeFuncs) Unix(in interface{}) (gotime.Time, error) {
sec, nsec, err := parseNum(in)
if err != nil {
return gotime.Time{}, err
}
return gotime.Unix(sec, nsec), nil
}
// Nanosecond -
func (f *TimeFuncs) Nanosecond(n interface{}) gotime.Duration {
return gotime.Nanosecond * gotime.Duration(conv.ToInt64(n))
}
// Microsecond -
func (f *TimeFuncs) Microsecond(n interface{}) gotime.Duration {
return gotime.Microsecond * gotime.Duration(conv.ToInt64(n))
}
// Millisecond -
func (f *TimeFuncs) Millisecond(n interface{}) gotime.Duration {
return gotime.Millisecond * gotime.Duration(conv.ToInt64(n))
}
// Second -
func (f *TimeFuncs) Second(n interface{}) gotime.Duration {
return gotime.Second * gotime.Duration(conv.ToInt64(n))
}
// Minute -
func (f *TimeFuncs) Minute(n interface{}) gotime.Duration {
return gotime.Minute * gotime.Duration(conv.ToInt64(n))
}
// Hour -
func (f *TimeFuncs) Hour(n interface{}) gotime.Duration {
return gotime.Hour * gotime.Duration(conv.ToInt64(n))
}
// ParseDuration -
func (f *TimeFuncs) ParseDuration(n interface{}) (gotime.Duration, error) {
return gotime.ParseDuration(conv.ToString(n))
}
// Since -
func (f *TimeFuncs) Since(n gotime.Time) gotime.Duration {
return gotime.Since(n)
}
// Until -
func (f *TimeFuncs) Until(n gotime.Time) gotime.Duration {
return gotime.Until(n)
}
// convert a number input to a pair of int64s, representing the integer portion and the decimal remainder
// this can handle a string as well as any integer or float type
// precision is at the "nano" level (i.e. 1e+9)
func parseNum(in interface{}) (integral int64, fractional int64, err error) {
if s, ok := in.(string); ok {
ss := strings.Split(s, ".")
if len(ss) > 2 {
return 0, 0, fmt.Errorf("can not parse '%s' as a number - too many decimal points", s)
}
if len(ss) == 1 {
integral, err := strconv.ParseInt(s, 0, 64)
return integral, 0, err
}
integral, err := strconv.ParseInt(ss[0], 0, 64)
if err != nil {
return integral, 0, err
}
fractional, err = strconv.ParseInt(padRight(ss[1], "0", 9), 0, 64)
return integral, fractional, err
}
if s, ok := in.(fmt.Stringer); ok {
return parseNum(s.String())
}
if i, ok := in.(int); ok {
return int64(i), 0, nil
}
if u, ok := in.(uint64); ok {
return int64(u), 0, nil
}
if f, ok := in.(float64); ok {
return 0, 0, fmt.Errorf("can not parse floating point number (%f) - use a string instead", f)
}
if in == nil {
return 0, 0, nil
}
return 0, 0, nil
}
// pads a number with zeroes
func padRight(in, pad string, length int) string {
for {
in += pad
if len(in) > length {
return in[0:length]
}
}
}
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