Files
notarius/internal/modules/dnd/validate/itemevents/shape/validator.go

103 lines
3.7 KiB
Go

// Package shape validates required D&D item-event candidate fields.
package shape
import (
"context"
"fmt"
"strings"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/itemevents"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared/diagnostics"
)
const (
Key = "extract/dnd/item-events/shape"
ReasonCode = "invalid_item_event_shape"
policy = "dnd.item_events.shape.v1"
)
type Options struct{}
type Validator struct{}
var _ contracts.TypedValidator[dnd.ItemOccurrenceList] = (*Validator)(nil)
var _ pipeline.CheckpointFingerprintProvider = (*Validator)(nil)
func New(Options) *Validator { return &Validator{} }
func (v *Validator) Name() string { return Key }
func (v *Validator) ExecutionClass() contracts.ExecutionClass {
return contracts.ExecutionClassDeterministic
}
func (v *Validator) CheckpointFingerprints() []pipeline.CheckpointFingerprint {
return []pipeline.CheckpointFingerprint{{Name: "policy", Value: policy}}
}
func (v *Validator) Validate(_ context.Context, req contracts.TypedValidationRequest[dnd.ItemOccurrenceList]) (contracts.ValidationResult, error) {
if err := Validate(req.Value); err != nil {
return contracts.ValidationResult{Approved: false, ReasonCode: ReasonCode, Message: err.Error()}, nil
}
return contracts.ValidationResult{Approved: true}, nil
}
// Validate returns one bounded error for every owned item-event shape issue.
func Validate(value dnd.ItemOccurrenceList) error {
issues := issuesFor(value)
if len(issues) == 0 {
return nil
}
return fmt.Errorf("%s", diagnostics.Aggregate("invalid item occurrence shape", issues))
}
func issuesFor(value dnd.ItemOccurrenceList) []string {
if value.Occurrences == nil {
return []string{"occurrences must be present"}
}
issues := make([]string, 0)
for index, event := range value.Occurrences {
prefix := fmt.Sprintf("occurrences[%d]", index)
if strings.TrimSpace(event.ItemID) == "" {
issues = append(issues, prefix+".item_id must not be empty: "+diagnostics.Quote(event.ItemID))
}
if strings.TrimSpace(event.Name) == "" {
issues = append(issues, prefix+".name must not be empty: "+diagnostics.Quote(event.Name))
}
if !itemevents.SupportedKind(event.Kind) {
issues = append(issues, prefix+".kind is unsupported: "+diagnostics.Quote(string(event.Kind)))
} else if !itemevents.ValidHolderCombination(event.Kind, event.From, event.To) {
issues = append(issues, prefix+".from and .to are incompatible with "+diagnostics.Quote(string(event.Kind)))
}
if event.Quantity != nil && *event.Quantity < 1 {
issues = append(issues, prefix+".quantity must be positive when present")
}
if len(event.SourceRefs) == 0 {
issues = append(issues, prefix+".source_refs must contain at least one reference")
}
}
return issues
}
func Spec() pipeline.ValidatorSpec {
return pipeline.ValidatorSpec{Key: Key, ExecutionClass: contracts.ExecutionClassDeterministic}
}
func Register(registry *pipeline.ValidatorRegistry) error {
return pipeline.RegisterTypedValidatorBuilder(registry, dnd.ItemOccurrenceListKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.ItemOccurrenceList], error) {
options, err := DecodeOptions(request.Options)
if err != nil {
return nil, err
}
return New(options), nil
})
}
func DecodeOptions(options map[string]any) (Options, error) {
if err := pipeline.RejectUnknownOptions(options); err != nil {
return Options{}, err
}
return Options{}, nil
}
func validateOptions(options map[string]any) error { _, err := DecodeOptions(options); return err }