Files
notarius/internal/modules/dnd/validate/enemyevents/engagements/validator.go

86 lines
3.0 KiB
Go

// 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 }