/
edtf.go
143 lines (98 loc) · 2.22 KB
/
edtf.go
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package properties
import (
"github.com/sfomuseum/go-edtf"
"github.com/sfomuseum/go-edtf/parser"
"github.com/tidwall/gjson"
"github.com/tidwall/sjson"
)
const date_fmt string = "2006-01-02"
func EnsureEDTF(feature []byte) ([]byte, error) {
var err error
feature, err = EnsureInception(feature)
if err != nil {
return nil, err
}
feature, err = EnsureCessation(feature)
if err != nil {
return nil, err
}
return feature, nil
}
func EnsureInception(feature []byte) ([]byte, error) {
path := "properties.edtf:inception"
rsp := gjson.GetBytes(feature, path)
if !rsp.Exists() {
return sjson.SetBytes(feature, path, edtf.UNKNOWN)
}
edtf_str := rsp.String()
switch edtf_str {
case edtf.UNKNOWN, edtf.OPEN:
return feature, nil
default:
// carry on
}
d, err := parser.ParseString(edtf_str)
if err != nil {
return nil, err
}
lower_t, err := d.Lower()
if err != nil {
return nil, err
}
if lower_t != nil {
feature, err = sjson.SetBytes(feature, "properties.date:inception_lower", lower_t.Format(date_fmt))
if err != nil {
return nil, err
}
}
upper_t, err := d.Upper()
if err != nil {
return nil, err
}
if upper_t != nil {
feature, err = sjson.SetBytes(feature, "properties.date:inception_upper", upper_t.Format(date_fmt))
if err != nil {
return nil, err
}
}
return feature, nil
}
func EnsureCessation(feature []byte) ([]byte, error) {
path := "properties.edtf:cessation"
rsp := gjson.GetBytes(feature, path)
if !rsp.Exists() {
return sjson.SetBytes(feature, path, edtf.UNKNOWN)
}
edtf_str := rsp.String()
switch edtf_str {
case edtf.UNKNOWN, edtf.OPEN:
return feature, nil
default:
// carry on
}
d, err := parser.ParseString(edtf_str)
if err != nil {
return nil, err
}
lower_t, err := d.Lower()
if err != nil {
return nil, err
}
if lower_t != nil {
feature, err = sjson.SetBytes(feature, "properties.date:cessation_lower", lower_t.Format(date_fmt))
if err != nil {
return nil, err
}
}
upper_t, err := d.Upper()
if err != nil {
return nil, err
}
if upper_t != nil {
feature, err = sjson.SetBytes(feature, "properties.date:cessation_upper", upper_t.Format(date_fmt))
if err != nil {
return nil, err
}
}
return feature, nil
}