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

122 lines
4.5 KiB
Go

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/spells/shape"
ReasonCode = "invalid_spell_shape"
policy = "dnd.spells.validator.shape.v2"
)
type Options struct{}
type Validator struct{}
var _ contracts.TypedValidator[dnd.SpellList] = (*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.SpellList]) (contracts.ValidationResult, error) {
assessment := assess(req.Value)
if len(assessment.issues) != 0 {
return rejection(assessment.message(), assessment.corrections.Guidance("Correct every rejected spell cast and return the complete replacement list")), nil
}
return contracts.ValidationResult{Approved: true}, nil
}
func Validate(value dnd.SpellList) error {
assessment := assess(value)
if len(assessment.issues) == 0 {
return nil
}
return fmt.Errorf("%s", assessment.message())
}
type validationAssessment struct {
issues []string
corrections diagnostics.Corrections
}
func assess(value dnd.SpellList) validationAssessment {
var assessment validationAssessment
if value.SpellCasts == nil {
assessment.issues = append(assessment.issues, "spell_casts must be present")
assessment.corrections.Add("list", "Return a `spell_casts` array; use an empty array when the transcript establishes no spell casts.", "")
return assessment
}
for index, spell := range value.SpellCasts {
context := spellContext(spell)
if strings.TrimSpace(spell.Caster) == "" {
assessment.issues = append(assessment.issues, fmt.Sprintf("spell_casts[%d].caster must not be empty", index))
assessment.corrections.Add("caster", "Provide the contextual caster name for every spell cast.", context)
}
if strings.TrimSpace(spell.Spell) == "" {
assessment.issues = append(assessment.issues, fmt.Sprintf("spell_casts[%d].spell must not be empty", index))
assessment.corrections.Add("spell", "Provide the transcript-supported spell name for every spell cast.", context)
}
if len(spell.SourceRefs) == 0 {
assessment.issues = append(assessment.issues, fmt.Sprintf("spell_casts[%d].source_refs must not be empty", index))
assessment.corrections.Add("source-refs", "Provide at least one transcript source range that directly supports every spell cast.", context)
}
}
return assessment
}
func (assessment validationAssessment) message() string {
return diagnostics.Aggregate("invalid spell shape", assessment.issues)
}
func spellContext(spell dnd.SpellCast) string {
name := strings.TrimSpace(spell.Spell)
if name == "" {
name = "blank spell name"
} else {
name = "spell " + diagnostics.Quote(name)
}
caster := strings.TrimSpace(spell.Caster)
if caster == "" {
caster = "blank caster name"
} else {
caster = "caster " + diagnostics.Quote(caster)
}
return "Affected cast: " + name + " with " + caster + " " + diagnostics.SourceRange(spell.SourceRefs) + "."
}
func Spec() pipeline.ValidatorSpec {
return pipeline.ValidatorSpec{Key: Key, ExecutionClass: contracts.ExecutionClassDeterministic}
}
func Register(registry *pipeline.ValidatorRegistry) error {
return pipeline.RegisterTypedValidatorBuilder(registry, dnd.SpellListKind, Spec(), validateOptions, func(request pipeline.BuildRequest) (contracts.TypedValidator[dnd.SpellList], 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, guidance string) contracts.ValidationResult {
return contracts.ValidationResult{Approved: false, ReasonCode: ReasonCode, Message: message, CorrectionGuidance: guidance}
}