twitch-bot/plugins/actorkit.go

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package plugins
import (
"reflect"
"github.com/Luzifer/go_helpers/v2/fieldcollection"
"github.com/pkg/errors"
)
type (
// ActorKit contains some common validation functions to be used
// when implementing actors
ActorKit struct{}
)
// ValidateRequireNonEmpty checks whether the fields are gettable
// (not returning ErrValueNotSet) and does not contain zero value
// recognized by reflect (to just check whether the field is set
// but allow zero values use HasAll on the FieldCollection)
func (ActorKit) ValidateRequireNonEmpty(attrs *fieldcollection.FieldCollection, fields ...string) error {
for _, field := range fields {
v, err := attrs.Get(field)
if err != nil {
return errors.Wrapf(err, "getting field %s", field)
}
if reflect.ValueOf(v).IsZero() {
return errors.Errorf("field %s has zero-value", field)
}
}
return nil
}
// ValidateRequireValidTemplate checks whether fields are gettable
// as strings and do have a template which validates (this does not
// check for empty strings as an empty template is indeed valid)
func (ActorKit) ValidateRequireValidTemplate(tplValidator TemplateValidatorFunc, attrs *fieldcollection.FieldCollection, fields ...string) error {
for _, field := range fields {
v, err := attrs.String(field)
if err != nil {
return errors.Wrapf(err, "getting string field %s", field)
}
if err = tplValidator(v); err != nil {
return errors.Wrapf(err, "validaging template field %s", field)
}
}
return nil
}
// ValidateRequireValidTemplateIfSet checks whether the field is
// either not set or a valid template (this does not
// check for empty strings as an empty template is indeed valid)
func (ActorKit) ValidateRequireValidTemplateIfSet(tplValidator TemplateValidatorFunc, attrs *fieldcollection.FieldCollection, fields ...string) error {
for _, field := range fields {
v, err := attrs.String(field)
if err != nil {
if errors.Is(err, fieldcollection.ErrValueNotSet) {
continue
}
return errors.Wrapf(err, "getting string field %s", field)
}
if err = tplValidator(v); err != nil {
return errors.Wrapf(err, "validaging template field %s", field)
}
}
return nil
}