package sendico

import (
	"time"

	"git.sendico.io/tech/sxchnge/product/identity"
	merrors "git.sendico.io/tech/sxchnge/shared/errors"
	"go.mongodb.org/mongo-driver/v2/bson"
)

// Only consumed wire fields are owned here; never import platform modules.
type factsDTO struct {
	FullName    string `json:"full_name"`
	Email       string `json:"email"`
	CustomerRef string `json:"external_customer_ref"`
}
type submissionDTO struct {
	SubjectRef string   `json:"subject_ref"`
	SourceRef  string   `json:"source_submission_ref"`
	Facts      factsDTO `json:"facts"`
}
type receiptDTO struct {
	SubjectRef    string    `json:"subject_ref"`
	RegisteredAt  time.Time `json:"registered_at"`
	SubmissionRef string    `json:"submission_ref"`
	AcceptedAt    time.Time `json:"accepted_at"`
}
type envelopeDTO struct {
	Status string     `json:"status"`
	Data   receiptDTO `json:"data"`
}

func validRef(ref string) bool {
	id, err := bson.ObjectIDFromHex(ref)
	return err == nil && !id.IsZero() && id.Hex() == ref
}
func mapFacts(subject, source string, facts identity.Facts) submissionDTO {
	return submissionDTO{SubjectRef: subject, SourceRef: source, Facts: factsDTO{FullName: facts.FullName, Email: facts.Email, CustomerRef: facts.CustomerRef}}
}
func mapSubject(dto receiptDTO) (string, error) {
	if !validRef(dto.SubjectRef) || dto.RegisteredAt.IsZero() {
		return "", merrors.ServiceUnavailable("invalid Sendico registration receipt")
	}
	return dto.SubjectRef, nil
}
func mapReceipt(dto receiptDTO, subject string) (identity.Receipt, error) {
	if !validRef(dto.SubmissionRef) || dto.SubjectRef != subject || dto.AcceptedAt.IsZero() {
		return identity.Receipt{}, merrors.ServiceUnavailable("invalid Sendico intake receipt")
	}
	return identity.Receipt{SubmissionRef: dto.SubmissionRef, SubjectRef: dto.SubjectRef, AcceptedAt: dto.AcceptedAt}, nil
}