124 lines
4.5 KiB
Go
124 lines
4.5 KiB
Go
// Package sourcerefs validates enemy-event evidence against the current source document.
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package sourcerefs
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import (
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"context"
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"fmt"
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"gitea.maximumdirect.net/eric/notarius/internal/core/source"
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"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
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"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
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"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
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"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/shared/diagnostics"
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enemyeventshape "gitea.maximumdirect.net/eric/notarius/internal/modules/dnd/validate/enemyevents/shape"
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)
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const (
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Key = "extract/dnd/enemy-events/source_refs"
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ReasonCode = "invalid_enemy_event_source_refs"
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policy = "dnd.enemy_events.validator.source_refs.v1"
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)
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type Options struct{}
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type Validator struct{}
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var _ contracts.TypedValidator[dnd.EnemyEventList] = (*Validator)(nil)
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var _ pipeline.CheckpointFingerprintProvider = (*Validator)(nil)
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func New(Options) *Validator { return &Validator{} }
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func (v *Validator) Name() string { return Key }
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func (v *Validator) ExecutionClass() contracts.ExecutionClass {
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return contracts.ExecutionClassDeterministic
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}
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func (v *Validator) CheckpointFingerprints() []pipeline.CheckpointFingerprint {
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return []pipeline.CheckpointFingerprint{{Name: "policy", Value: policy}}
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}
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func (v *Validator) Validate(_ context.Context, req contracts.TypedValidationRequest[dnd.EnemyEventList]) (contracts.ValidationResult, error) {
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if req.Stage == string(pipeline.StageExtract) && req.Chunk == nil {
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return contracts.ValidationResult{}, fmt.Errorf("enemy event source-reference validator requires the current extraction chunk")
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}
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if err := enemyeventshape.Validate(req.Value); err != nil {
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return contracts.ValidationResult{Approved: true}, nil
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}
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index := source.NewDocumentIndex(req.Source)
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var coverage *chunkCoverage
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if req.Stage == string(pipeline.StageExtract) {
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coverage = newChunkCoverage(req.Chunk)
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}
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issues := sourceRefIssues(index, req.Source, coverage, req.Value)
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if len(issues) == 0 {
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return contracts.ValidationResult{Approved: true}, nil
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}
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return contracts.ValidationResult{Approved: false, ReasonCode: ReasonCode, Message: diagnostics.Aggregate("invalid enemy event source references", issues)}, nil
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}
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func sourceRefIssues(index source.DocumentIndex, doc *source.SourceDocument, coverage *chunkCoverage, value dnd.EnemyEventList) []string {
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issues := make([]string, 0)
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for eventIndex, event := range value.Events {
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for refIndex, ref := range event.SourceRefs {
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if err := index.ValidateRef(ref); err != nil {
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issues = append(issues, fmt.Sprintf("events[%d].source_refs[%d]: %s", eventIndex, refIndex, diagnostics.Truncate(err.Error())))
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continue
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}
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if coverage != nil && !coverage.contains(doc, ref) {
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issues = append(issues, fmt.Sprintf("events[%d].source_refs[%d]: source reference is outside the current extraction chunk", eventIndex, refIndex))
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}
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}
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}
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return issues
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}
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type chunkCoverage struct {
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sourceID string
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unitIDs map[int]struct{}
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}
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func newChunkCoverage(chunk *source.Chunk) *chunkCoverage {
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coverage := &chunkCoverage{sourceID: chunk.SourceID, unitIDs: make(map[int]struct{}, len(chunk.Units))}
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for _, unit := range chunk.Units {
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coverage.unitIDs[unit.ID] = struct{}{}
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}
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return coverage
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}
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func (coverage *chunkCoverage) contains(doc *source.SourceDocument, ref source.SourceRef) bool {
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if coverage == nil || doc == nil || ref.SourceID != coverage.sourceID {
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return false
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}
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start, startOK := source.UnitIndex(doc, ref.StartUnitID)
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end, endOK := source.UnitIndex(doc, ref.EndUnitID)
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if !startOK || !endOK || start > end {
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return false
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}
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for position := start; position <= end; position++ {
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if _, found := coverage.unitIDs[doc.Units[position].ID]; !found {
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return false
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}
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}
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return true
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}
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func Spec() pipeline.ValidatorSpec {
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return pipeline.ValidatorSpec{Key: Key, ExecutionClass: contracts.ExecutionClassDeterministic}
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}
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func Register(registry *pipeline.ValidatorRegistry) error {
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return pipeline.RegisterTypedValidatorBuilder(registry, dnd.EnemyEventListKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.EnemyEventList], error) {
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options, err := DecodeOptions(request.Options)
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if err != nil {
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return nil, err
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}
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return New(options), nil
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})
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}
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func DecodeOptions(options map[string]any) (Options, error) {
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if err := pipeline.RejectUnknownOptions(options); err != nil {
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return Options{}, err
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}
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return Options{}, nil
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}
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func validateOptions(options map[string]any) error { _, err := DecodeOptions(options); return err }
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