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Enforce unique enemy engagements per scene

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This commit is contained in:
Eric Rakestraw
2026-08-03 22:50:41 +00:00
parent 42973215fa
commit e6b7c61f45
7 changed files with 536 additions and 0 deletions
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2
internal/modules/dnd/register/chains.go
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@@ -20,6 +20,7 @@ import (
combatshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/shape"
combatsourcerefs "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/source_refs"
combatrelatedness "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/source_relatedness"
enemyeventengagements "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/engagements"
enemyeventinvariants "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/invariants"
enemyeventshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/shape"
enemyeventrefs "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/source_refs"
@@ -140,6 +141,7 @@ func registerDefaultChains(registry *pipeline.ValidatorChainRegistry) error {
Validators: []pipeline.ModuleBinding{
pipeline.Binding(validjson.Key),
pipeline.Binding(enemyeventshape.Key),
pipeline.Binding(enemyeventengagements.Key),
pipeline.Binding(enemyeventrefs.Key),
pipeline.Binding(validjsonschema.Key),
pipeline.Binding(enemyeventrelatedness.Key),

2
internal/modules/dnd/register/register_test.go
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@@ -101,6 +101,7 @@ func TestRegisterAddsDNDFamily(t *testing.T) {
"extract/dnd/combat-turns/source_relatedness",
"normalize/dnd/combat-turns/invariants",
"extract/dnd/enemy-events/shape",
"extract/dnd/enemy-events/engagements",
"extract/dnd/enemy-events/source_refs",
"extract/dnd/enemy-events/source_relatedness",
"normalize/dnd/enemy-events/invariants",
@@ -179,6 +180,7 @@ func TestRegisterAddsDNDFamily(t *testing.T) {
enemyEventExtractChain := []pipeline.ModuleBinding{
pipeline.Binding("generic/valid_json"),
pipeline.Binding("extract/dnd/enemy-events/shape"),
pipeline.Binding("extract/dnd/enemy-events/engagements"),
pipeline.Binding("extract/dnd/enemy-events/source_refs"),
pipeline.Binding("generic/valid_json_schema"),
pipeline.Binding("extract/dnd/enemy-events/source_relatedness"),

2
internal/modules/dnd/register/validators.go
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@@ -7,6 +7,7 @@ import (
combatshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/shape"
combatsourcerefs "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/source_refs"
combatrelatedness "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/combatturns/source_relatedness"
enemyeventengagements "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/engagements"
enemyeventinvariants "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/invariants"
enemyeventshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/shape"
enemyeventrefs "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/source_refs"
@@ -51,6 +52,7 @@ func registerValidators(registries pipeline.Registries) error {
{name: "combat source relatedness validator", register: func() error { return combatrelatedness.Register(registries.Validators) }},
{name: "combat normalized invariants validator", register: func() error { return combatinvariants.Register(registries.Validators) }},
{name: "enemy event shape validator", register: func() error { return enemyeventshape.Register(registries.Validators) }},
{name: "enemy event engagement validator", register: func() error { return enemyeventengagements.Register(registries.Validators) }},
{name: "enemy event source references validator", register: func() error { return enemyeventrefs.Register(registries.Validators) }},
{name: "enemy event source relatedness validator", register: func() error { return enemyeventrelatedness.Register(registries.Validators) }},
{name: "enemy event normalized invariants validator", register: func() error { return enemyeventinvariants.Register(registries.Validators) }},

85
internal/modules/dnd/validate/enemyevents/engagements/validator.go Normal file
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@@ -0,0 +1,85 @@
// Package engagements prevents duplicate enemy engagements within one scene.
package engagements
import (
"context"
"fmt"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
enemyeventmodel "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/enemyevents"
"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared/diagnostics"
enemyeventshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/shape"
)
const (
Key = "extract/dnd/enemy-events/engagements"
ReasonCode = "duplicate_enemy_engagement"
policy = "dnd.enemy_events.validator.engagements.v1"
)
type Options struct{}
type Validator struct{}
var _ contracts.TypedValidator[dnd.EnemyEventList] = (*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.EnemyEventList]) (contracts.ValidationResult, error) {
if enemyeventshape.Validate(req.Value) != nil {
return contracts.ValidationResult{Approved: true}, nil
}
seen := make(map[string]struct{})
for _, event := range req.Value.Events {
if event.Kind != dnd.EnemyEventKindEngaged {
continue
}
identity := enemyeventmodel.ComparisonKey(event.Name)
if identity == "" {
continue
}
if _, found := seen[identity]; found {
return contracts.ValidationResult{
Approved: false,
ReasonCode: ReasonCode,
Message: diagnostics.Aggregate("duplicate enemy engagement", []string{
fmt.Sprintf("subject %s has more than one engagement in one combat scene", diagnostics.Quote(event.Name)),
}),
}, nil
}
seen[identity] = struct{}{}
}
return contracts.ValidationResult{Approved: true}, nil
}
func Spec() pipeline.ValidatorSpec {
return pipeline.ValidatorSpec{Key: Key, ExecutionClass: contracts.ExecutionClassDeterministic}
}
func Register(registry *pipeline.ValidatorRegistry) error {
return pipeline.RegisterTypedValidatorBuilder(registry, dnd.EnemyEventListKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.EnemyEventList], 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 }

70
internal/modules/dnd/validate/enemyevents/engagements/validator_test.go Normal file
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@@ -0,0 +1,70 @@
package engagements
import (
"context"
"strings"
"testing"
"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 TestValidatorEnforcesOneEngagementPerSubject(t *testing.T) {
for _, test := range []struct {
name string
value dnd.EnemyEventList
approved bool
}{
{name: "empty", value: dnd.EnemyEventList{Events: []dnd.EnemyEvent{}}, approved: true},
{name: "one engagement", value: events(event("Ashfang", dnd.EnemyEventKindEngaged, 1)), approved: true},
{name: "same subject different evidence", value: events(event("Ashfang", dnd.EnemyEventKindEngaged, 1), event("Ashfang", dnd.EnemyEventKindEngaged, 2))},
{name: "whitespace and case variant", value: events(event("Ashfang", dnd.EnemyEventKindEngaged, 1), event(" ASHFANG ", dnd.EnemyEventKindEngaged, 2))},
{name: "different subjects", value: events(event("Ashfang", dnd.EnemyEventKindEngaged, 1), event("Briar", dnd.EnemyEventKindEngaged, 2)), approved: true},
{name: "different kinds", value: events(event("Ashfang", dnd.EnemyEventKindEngaged, 1), event("Ashfang", dnd.EnemyEventKindFled, 2)), approved: true},
{name: "malformed shape", value: dnd.EnemyEventList{Events: []dnd.EnemyEvent{{Name: "Ashfang"}, {Name: "Ashfang", Kind: dnd.EnemyEventKindEngaged, SourceRefs: refs(2)}}}, approved: true},
} {
t.Run(test.name, func(t *testing.T) {
result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.EnemyEventList]{Value: test.value})
if err != nil || result.Approved != test.approved {
t.Fatalf("Validate() = %#v, %v; want approved=%t", result, err, test.approved)
}
if !test.approved && result.ReasonCode != ReasonCode {
t.Fatalf("reason code = %q, want %q", result.ReasonCode, ReasonCode)
}
})
}
for _, unitID := range []int{1, 2} {
result, err := New(Options{}).Validate(context.Background(), contracts.TypedValidationRequest[dnd.EnemyEventList]{Value: events(event("Ashfang", dnd.EnemyEventKindEngaged, unitID))})
if err != nil || !result.Approved {
t.Fatalf("separate scene validation = %#v, %v; want approved", result, err)
}
}
}
func TestValidatorRegistersStrictOptionsAndPolicy(t *testing.T) {
registry := pipeline.NewValidatorRegistry()
if err := Register(registry); err != nil {
t.Fatal(err)
}
if Spec().Key != Key || Spec().ExecutionClass != contracts.ExecutionClassDeterministic {
t.Fatalf("Spec() = %#v", Spec())
}
if got := New(Options{}).CheckpointFingerprints(); len(got) != 1 || got[0].Name != "policy" || got[0].Value != policy {
t.Fatalf("CheckpointFingerprints() = %#v", got)
}
if _, err := DecodeOptions(map[string]any{"unexpected": true}); err == nil || !strings.Contains(err.Error(), "unknown option") {
t.Fatalf("DecodeOptions() error = %v, want strict option rejection", err)
}
}
func events(values ...dnd.EnemyEvent) dnd.EnemyEventList { return dnd.EnemyEventList{Events: values} }
func event(name string, kind dnd.EnemyEventKind, unitID int) dnd.EnemyEvent {
return dnd.EnemyEvent{Name: name, Kind: kind, SourceRefs: refs(unitID)}
}
func refs(unitID int) []source.SourceRef {
return []source.SourceRef{{SourceID: "session", StartUnitID: unitID, EndUnitID: unitID}}
}