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package value
import (
"encoding/json"
"fmt"
"time"
)
var _ Value = NewAny(nil)
//nolint:gochecknoglobals
var (
emptyValue = NewAny(nil)
)
func Empty() Value {
return emptyValue
}
func IsEmpty(v Value) bool {
return v == nil || v == emptyValue
}
func NewAny(in interface{}) Value {
return Read{Any{v: in}}
}
type Any struct {
v interface{}
}
func (a Any) Any() interface{} {
return a.v
}
func (a Any) Unmarshal(val interface{}) error {
out, err := a.ParseString()
if err != nil {
return fmt.Errorf("any parse string:%w", err)
}
uerr := json.Unmarshal([]byte(out), val)
if uerr != nil {
return fmt.Errorf("any unmarshal: %w", uerr)
}
return nil
}
func (a Any) ParseString() (string, error) {
if a.v == nil {
return "", nil
}
bout, err := json.Marshal(a.v)
if err != nil {
return "", fmt.Errorf("any string:%w", err)
}
return string(bout), err
}
func (a Any) ParseInt() (int, error) {
out, ok := a.v.(int)
if !ok {
return 0, a.wrongType("int")
}
return out, nil
}
func (a Any) ParseInt64() (int64, error) {
out, ok := a.v.(int64)
if !ok {
return 0, a.wrongType("int64")
}
return out, nil
}
func (a Any) ParseUint() (uint, error) {
out, ok := a.v.(uint)
if !ok {
return 0, a.wrongType("uint")
}
return out, nil
}
func (a Any) ParseUint64() (uint64, error) {
out, ok := a.v.(uint64)
if !ok {
return 0, a.wrongType("uint64")
}
return out, nil
}
func (a Any) ParseFloat64() (float64, error) {
out, ok := a.v.(float64)
if !ok {
return 0, a.wrongType("float64")
}
return out, nil
}
func (a Any) ParseBool() (bool, error) {
out, ok := a.v.(bool)
if !ok {
return false, a.wrongType("bool")
}
return out, nil
}
func (a Any) ParseDuration() (time.Duration, error) {
out, ok := a.v.(time.Duration)
if !ok {
return 0, a.wrongType("time.Duration")
}
return out, nil
}
func (a Any) ParseTime() (time.Time, error) {
out, ok := a.v.(time.Time)
if !ok {
return time.Time{}, a.wrongType("time.Time")
}
return out, nil
}
func (a Any) wrongType(ex String) error {
return fmt.Errorf("%w any: got: %T expect: %s", ErrWrongType, a.v, ex)
}