/
datetime.go
312 lines (274 loc) · 6.16 KB
/
datetime.go
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package model
import (
"bytes"
"encoding/json"
"fmt"
"reflect"
"time"
"github.com/pkg/errors"
)
func NewDate(y, m, d int) Date {
return Date{Year: y, Month: m, Day: d}
}
func (d Date) String() string {
return fmt.Sprintf("%04d-%02d-%02d", d.Year, d.Month, d.Day)
}
func (d Date) MarshalJSON() ([]byte, error) {
return json.Marshal(d.String())
}
func (d *Date) UnmarshalJSON(data []byte) error {
var s string
if err := json.Unmarshal(data, &s); err != nil {
return err
}
return d.Parse(s)
}
func (d *Date) Parse(s string) error {
t, err := time.Parse("2006-01-02", s)
if err != nil {
panic(err)
return errors.New("failed to parse model.Date: " + err.Error())
}
d.Year = t.Year()
d.Month = int(t.Month())
d.Day = t.Day()
return nil
}
func (dl *DateList) Extract(v interface{}) error {
var ret []Date
switch v.(type) {
case []string:
ret = make([]Date, len(v.([]string)))
for i, s := range v.([]string) {
var dt Date
if err := dt.Parse(s); err != nil {
return err
}
ret[i] = dt
}
case []interface{}:
vl := v.([]interface{})
ret = make([]Date, len(vl))
for i, s := range vl {
switch s.(type) {
case string:
if err := ret[i].Parse(s.(string)); err != nil {
return err
}
case map[string]interface{}:
m := s.(map[string]interface{})
v, ok := m["date"]
if !ok {
return errors.New("missing required field 'date'")
}
s2, ok := v.(string)
if !ok {
return errors.New("invalid type for required field 'date'")
}
if err := ret[i].Parse(s2); err != nil {
return err
}
default:
return errors.New("invalid value to parse for conference date")
}
}
default:
return errors.New("invaid value to parse for date")
}
*dl = ret
return nil
}
func NewWallClock(h, m int) WallClock {
return WallClock{hour: h, minute: m, Valid: true}
}
func (w WallClock) String() string {
if !w.Valid {
return ""
}
return fmt.Sprintf("%02d:%02d", w.hour, w.minute)
}
func (w WallClock) MarshalJSON() ([]byte, error) {
if !w.Valid {
return nil, nil
}
return json.Marshal(w.String())
}
func (w *WallClock) UnmarshalJSON(data []byte) error {
var s string
if err := json.Unmarshal(data, &s); err != nil {
return err
}
return w.Parse(s)
}
func (w *WallClock) Parse(s string) error {
t, err := time.Parse("15:04", s)
if err != nil {
return errors.New("failed to parse WallClock: " + err.Error())
}
w.hour = t.Hour()
w.minute = t.Minute()
w.Valid = true
return nil
}
func (cd ConferenceDate) String() string {
buf := bytes.Buffer{}
if !cd.Open.IsZero() {
buf.WriteString(cd.Open.Format(time.RFC3339))
}
buf.WriteByte('-')
if !cd.Close.IsZero() {
buf.WriteString(cd.Close.Format(time.RFC3339))
}
return buf.String()
}
func (cd ConferenceDate) MarshalJSON() ([]byte, error) {
// conference dates are represented as:
// { open: "rfc3339", close: "rfc3339" }
m := map[string]string{}
if len(cd.ID) > 0 {
m["id"] = cd.ID
}
if !cd.Open.IsZero() {
m["open"] = cd.Open.Format(time.RFC3339)
}
if !cd.Close.IsZero() {
m["close"] = cd.Close.Format(time.RFC3339)
}
return json.Marshal(m)
}
func (cd *ConferenceDate) extractMap(m map[string]interface{}) error {
if v, ok := m["id"]; ok {
s, ok := v.(string)
if !ok {
return errors.New("invalid type for field 'id'")
}
cd.ID = s
}
if v, ok := m["open"]; ok {
s, ok := v.(string)
if !ok {
return errors.New("invalid type for field 'open'")
}
t, err := time.Parse(time.RFC3339, s)
if err != nil {
return err
}
cd.Open = t
}
if v, ok := m["close"]; ok {
s, ok := v.(string)
if !ok {
return errors.New("invalid type for field 'close'")
}
t, err := time.Parse(time.RFC3339, s)
if err != nil {
return err
}
cd.Close = t
}
return nil
}
func (cd *ConferenceDate) UnmarshalJSON(data []byte) error {
m := map[string]interface{}{}
if err := json.Unmarshal(data, &m); err != nil {
return err
}
if err := cd.extractMap(m); err != nil {
return err
}
return nil
}
func (t JSONTime) MarshalJSON() ([]byte, error) {
return json.Marshal(time.Time(t).Format(time.RFC3339))
}
func (t *JSONTime) parse(s string) error {
x, err := time.Parse(time.RFC3339, s)
if err != nil {
return errors.Wrap(err, "failed to parse time using RFC3339")
}
*t = JSONTime(x)
return nil
}
func (t *JSONTime) UnmarshalJSON(buf []byte) error {
var s string
if err := json.Unmarshal(buf, &s); err != nil {
return err
}
return t.parse(s)
}
func (tl *JSONTimeList) Extract(v interface{}) error {
var ret []JSONTime
switch v.(type) {
case []interface{}:
default:
return errors.New("invalid value for JSONTimeList")
}
vl := v.([]interface{})
ret = make([]JSONTime, len(vl))
for i, s := range vl {
switch s.(type) {
case string:
if err := ret[i].parse(s.(string)); err != nil {
return err
}
default:
return errors.New("invalid value for JSONTime")
}
}
*tl = ret
return nil
}
type MaybeJSONTime struct {
JSONTime
ValidFlag bool
}
func (t MaybeJSONTime) Valid() bool {
return t.ValidFlag
}
func (t MaybeJSONTime) Value() interface{} {
return t.JSONTime
}
func (t *MaybeJSONTime) Set(x interface{}) error {
switch x.(type) {
case time.Time:
t.JSONTime = JSONTime(x.(time.Time))
t.ValidFlag = true
case JSONTime:
t.JSONTime = x.(JSONTime)
t.ValidFlag = true
case string:
v, err := time.Parse(time.RFC3339, x.(string))
if err != nil {
return errors.Wrap(err, "failed to parse string value for MaybeJSONTime")
}
t.JSONTime = JSONTime(v)
t.ValidFlag = true
default:
return errors.Errorf("invalid type %s for MaybeJSONTime.Set", reflect.TypeOf(x))
}
return nil
}
func (t *MaybeJSONTime) Reset() {
t.JSONTime = JSONTime{}
t.ValidFlag = false
}
func (t *MaybeJSONTime) UnmarshalJSON(buf []byte) error {
if err := json.Unmarshal(buf, &t.JSONTime); err != nil {
return errors.Wrap(err, "failed to unmarshal JSONTime")
}
t.ValidFlag = true
return nil
}
func (cdl *ConferenceDate) Extract(v interface{}) error {
switch v.(type) {
case map[string]interface{}:
var cd ConferenceDate
if err := cd.extractMap(v.(map[string]interface{})); err != nil {
return err
}
*cdl = cd
default:
return errors.Errorf("Invalid conference date type: %s", reflect.TypeOf(v).Name)
}
return nil
}