Add D&D item event validators

This commit is contained in:
2026-07-25 21:52:59 +00:00
parent f51b22bea7
commit da83510234
4 changed files with 433 additions and 0 deletions

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@@ -0,0 +1,99 @@
// 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.ItemEventList] = (*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.ItemEventList]) (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.ItemEventList) error {
issues := issuesFor(value)
if len(issues) == 0 {
return nil
}
return fmt.Errorf("%s", diagnostics.Aggregate("invalid item event shape", issues))
}
func issuesFor(value dnd.ItemEventList) []string {
if value.Events == nil {
return []string{"events must be present"}
}
issues := make([]string, 0)
for index, event := range value.Events {
prefix := fmt.Sprintf("events[%d]", index)
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.ItemEventListKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.ItemEventList], 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 }

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@@ -0,0 +1,109 @@
package shape
import (
"context"
"reflect"
"strings"
"testing"
"unicode/utf8"
"gitea.maximumdirect.net/eric/notarius/internal/core/source"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
)
func TestValidatorAcceptsEveryEventRuleAndNormalizableWhitespace(t *testing.T) {
quantity := 1
value := dnd.ItemEventList{Events: []dnd.ItemEvent{
{Name: " Hidden Cache ", Kind: dnd.ItemEventKindDiscovered, From: " ", To: " ", SourceRefs: refs(1, 1)},
{Name: "Gold Pieces", Kind: dnd.ItemEventKindAcquired, Quantity: &quantity, To: " party ", SourceRefs: refs(2, 2)},
{Name: "Torch", Kind: dnd.ItemEventKindLost, From: " party ", SourceRefs: refs(3, 3)},
{Name: "Potion", Kind: dnd.ItemEventKindConsumed, From: " Aria ", SourceRefs: refs(4, 4)},
{Name: "Moonblade", Kind: dnd.ItemEventKindTransferred, From: "Aria", To: "Borin", SourceRefs: refs(5, 5)},
}}
result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.ItemEventList]{Value: value})
if err != nil || !result.Approved {
t.Fatalf("Validate() = %#v, %v", result, err)
}
empty, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.ItemEventList]{Value: dnd.ItemEventList{Events: []dnd.ItemEvent{}}})
if err != nil || !empty.Approved {
t.Fatalf("empty list result = %#v, %v", empty, err)
}
}
func TestValidatorRejectsOwnedSemanticBoundaries(t *testing.T) {
valid := validList()
zero := 0
negative := -1
tests := []struct {
name string
value dnd.ItemEventList
want string
}{
{"missing events", dnd.ItemEventList{}, "events must be present"},
{"blank name", listWith(dnd.ItemEvent{Name: " \t", Kind: dnd.ItemEventKindDiscovered, SourceRefs: refs(1, 1)}), "name must not be empty"},
{"unsupported kind", listWith(dnd.ItemEvent{Name: "Ring", Kind: "unknown", SourceRefs: refs(1, 1)}), "kind is unsupported"},
{"discovered holder", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindDiscovered, From: "Aria", SourceRefs: refs(1, 1)}), "incompatible"},
{"acquired without holder", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindAcquired, SourceRefs: refs(1, 1)}), "incompatible"},
{"lost destination", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindLost, From: "Aria", To: "Borin", SourceRefs: refs(1, 1)}), "incompatible"},
{"consumed without holder", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindConsumed, SourceRefs: refs(1, 1)}), "incompatible"},
{"party transfer from", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindTransferred, From: "party", To: "Borin", SourceRefs: refs(1, 1)}), "incompatible"},
{"party transfer to", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindTransferred, From: "Aria", To: " PARTY ", SourceRefs: refs(1, 1)}), "incompatible"},
{"case equivalent transfer", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindTransferred, From: "Aria", To: "aria", SourceRefs: refs(1, 1)}), "incompatible"},
{"unicode equivalent transfer", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindTransferred, From: "Åria", To: "Åria", SourceRefs: refs(1, 1)}), "incompatible"},
{"zero quantity", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindAcquired, Quantity: &zero, To: "party", SourceRefs: refs(1, 1)}), "quantity must be positive"},
{"negative quantity", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindAcquired, Quantity: &negative, To: "party", SourceRefs: refs(1, 1)}), "quantity must be positive"},
{"missing source refs", listWith(dnd.ItemEvent{Name: "Ring", Kind: dnd.ItemEventKindDiscovered}), "source_refs must contain"},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.ItemEventList]{Value: test.value})
if err != nil || result.Approved || result.ReasonCode != ReasonCode || !strings.Contains(result.Message, test.want) {
t.Fatalf("Validate() = %#v, %v; want %q", result, err, test.want)
}
})
}
if result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.ItemEventList]{Value: valid}); err != nil || !result.Approved {
t.Fatalf("valid result = %#v, %v", result, err)
}
}
func TestValidatorAggregatesBoundedIndexedDiagnosticsAndRegistration(t *testing.T) {
value := dnd.ItemEventList{Events: make([]dnd.ItemEvent, 24)}
for index := range value.Events {
value.Events[index] = dnd.ItemEvent{Name: " \n", Kind: "unsupported"}
}
result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.ItemEventList]{Value: value})
if err != nil || result.Approved || result.ReasonCode != ReasonCode || len([]byte(result.Message)) > 4096 || !utf8.ValidString(result.Message) || !strings.Contains(result.Message, "events[0]") || !strings.Contains(result.Message, "additional issue(s) omitted") {
t.Fatalf("Validate() = %#v, %v", result, err)
}
if value.Events[0].Name != " \n" {
t.Fatal("Validate() mutated input")
}
if got := New(Options{}).CheckpointFingerprints(); !reflect.DeepEqual(got, []pipeline.CheckpointFingerprint{{Name: "policy", Value: policy}}) {
t.Fatalf("CheckpointFingerprints() = %#v", got)
}
registry := pipeline.NewValidatorRegistry()
if err := Register(registry); err != nil {
t.Fatal(err)
}
if got, ok := registry.Spec(Key); !ok || !reflect.DeepEqual(got, Spec()) {
t.Fatalf("registry spec = %#v, %t", got, ok)
}
if _, err := DecodeOptions(map[string]any{"unexpected": true}); err == nil {
t.Fatal("DecodeOptions() accepted unknown option")
}
}
func validList() dnd.ItemEventList {
return dnd.ItemEventList{Events: []dnd.ItemEvent{{Name: "Ring", Kind: dnd.ItemEventKindAcquired, To: "party", SourceRefs: refs(1, 1)}}}
}
func listWith(event dnd.ItemEvent) dnd.ItemEventList {
return dnd.ItemEventList{Events: []dnd.ItemEvent{event}}
}
func refs(start, end int) []source.SourceRef {
return []source.SourceRef{{SourceID: "session", StartUnitID: start, EndUnitID: end}}
}