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

98 lines
3.1 KiB
Go

// Package shape validates the required extracted item 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/shared/diagnostics"
)
const (
Key = "extract/dnd/item-registry/shape"
ReasonCode = "invalid_item_shape"
policy = "dnd.item_registry.validator.shape.v1"
)
type Options struct{}
type Validator struct{}
var _ contracts.TypedValidator[dnd.ItemRegistry] = (*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.ItemRegistry]) (contracts.ValidationResult, error) {
issues := issuesFor(req.Value)
if len(issues) > 0 {
return rejection(diagnostics.Aggregate("invalid item shape", issues)), nil
}
return contracts.ValidationResult{Approved: true}, nil
}
func Validate(value dnd.ItemRegistry) error {
issues := issuesFor(value)
if len(issues) == 0 {
return nil
}
return fmt.Errorf("%s", diagnostics.Aggregate("invalid item shape", issues))
}
func issuesFor(value dnd.ItemRegistry) []string {
if value.Items == nil {
return []string{"items must be present"}
}
issues := make([]string, 0)
for index, item := range value.Items {
prefix := fmt.Sprintf("items[%d]", index)
if strings.TrimSpace(item.ID) == "" {
issues = append(issues, prefix+".id must not be empty")
}
if strings.TrimSpace(item.Name) == "" {
issues = append(issues, prefix+".name must not be empty")
}
if len(item.SourceRefs) == 0 {
issues = append(issues, prefix+".source_refs must not be empty")
}
}
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.ItemRegistryKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.ItemRegistry], 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 }
func rejection(message string) contracts.ValidationResult {
return contracts.ValidationResult{Approved: false, ReasonCode: ReasonCode, Message: message}
}