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package types
import (
"database/sql"
"database/sql/driver"
"encoding"
"encoding/json"
"github.com/icinga/icingadb/internal"
"github.com/icinga/icingadb/pkg/utils"
"github.com/pkg/errors"
"strconv"
"time"
)
// UnixMilli is a nullable millisecond UNIX timestamp in databases and JSON.
type UnixMilli time.Time
// Time returns the time.Time conversion of UnixMilli.
func (t UnixMilli) Time() time.Time {
return time.Time(t)
}
// MarshalJSON implements the json.Marshaler interface.
// Marshals to milliseconds. Supports JSON null.
func (t UnixMilli) MarshalJSON() ([]byte, error) {
if time.Time(t).IsZero() {
return nil, nil
}
return []byte(strconv.FormatInt(time.Time(t).UnixMilli(), 10)), nil
}
// UnmarshalText implements the encoding.TextUnmarshaler interface.
func (t *UnixMilli) UnmarshalText(text []byte) error {
parsed, err := strconv.ParseFloat(string(text), 64)
if err != nil {
return internal.CantParseFloat64(err, string(text))
}
*t = UnixMilli(utils.FromUnixMilli(int64(parsed)))
return nil
}
// UnmarshalJSON implements the json.Unmarshaler interface.
// Unmarshals from milliseconds. Supports JSON null.
func (t *UnixMilli) UnmarshalJSON(data []byte) error {
if string(data) == "null" || len(data) == 0 {
return nil
}
ms, err := strconv.ParseFloat(string(data), 64)
if err != nil {
return internal.CantParseFloat64(err, string(data))
}
tt := utils.FromUnixMilli(int64(ms))
*t = UnixMilli(tt)
return nil
}
// Scan implements the sql.Scanner interface.
// Scans from milliseconds. Supports SQL NULL.
func (t *UnixMilli) Scan(src interface{}) error {
if src == nil {
return nil
}
v, ok := src.(int64)
if !ok {
return errors.Errorf("bad int64 type assertion from %#v", src)
}
tt := utils.FromUnixMilli(v)
*t = UnixMilli(tt)
return nil
}
// Value implements the driver.Valuer interface.
// Returns milliseconds. Supports SQL NULL.
func (t UnixMilli) Value() (driver.Value, error) {
if t.Time().IsZero() {
return nil, nil
}
return t.Time().UnixMilli(), nil
}
// Assert interface compliance.
var (
_ json.Marshaler = (*UnixMilli)(nil)
_ encoding.TextUnmarshaler = (*UnixMilli)(nil)
_ json.Unmarshaler = (*UnixMilli)(nil)
_ sql.Scanner = (*UnixMilli)(nil)
_ driver.Valuer = (*UnixMilli)(nil)
)
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