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path: root/pkg/dto/client_information_response.go
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package dto

import (
	"errors"
	"net/url"
	"time"

	"github.com/hashicorp/uuid"
)

type ClientInformationResponse struct {
	ClientId              string `json:"client_id"`
	ClientSecret          string `json:"client_secret"`
	ClientIdIssuedAt      int64  `json:"client_id_issued_at"`
	ClientSecretExpiresAt int64  `json:"client_secret_expires_at"`
	ClientMetadata
}

func NewClientInformationResponse(request *ClientRegistrationRequest) *ClientInformationResponse {
	expiresAt := time.Now().Add(time.Duration(1) * time.Hour)
	return &ClientInformationResponse{
		ClientMetadata: ClientMetadata{
			RedirectUris:            request.RedirectUris,
			ClientName:              request.ClientName,
			TokenEndpointAuthMethod: request.TokenEndpointAuthMethod,
			LogoUri:                 request.LogoUri,
			JWKSUri:                 request.JWKSUri,
		},
		ClientId:              uuid.GenerateUUID(),
		ClientIdIssuedAt:      time.Now().Unix(),
		ClientSecret:          uuid.GenerateUUID(),
		ClientSecretExpiresAt: expiresAt.Unix(),
	}
}

type ClientRegistrationError error

var (
	InvalidClientMetadata       ClientRegistrationError = errors.New("invalid_client_metadata")
	InvalidRedirectUri                                  = errors.New("invalid_redirect_uri")
	InvalidSoftwareStatement                            = errors.New("invalid_software_statement")
	UnapprovedSoftwareStatement                         = errors.New("unapproved_software_statement")
)

func (x *ClientInformationResponse) Valid() ClientRegistrationError {
	if x.ClientName == "" {
		return InvalidClientMetadata
	}
	if len(x.RedirectUris) == 0 {
		return InvalidRedirectUri
	}
	for _, item := range x.RedirectUris {
		if _, err := url.ParseRequestURI(item); err != nil {
			return InvalidRedirectUri
		}
	}
	return nil
}