package classes

import (
	"context"
	"errors"
	"time"

	"git.golem15.com/golem15/summercms/modules/cooler"
)

// UploadTTL is how long an upload URL is valid.
const UploadTTL = 10 * time.Minute

var (
	// ErrUploadTicket is every refused upload ticket.
	ErrUploadTicket = errors.New("bm: invalid or expired upload ticket")
	// ErrUploadKeyMissing means no key to sign upload tickets with.
	ErrUploadKeyMissing = errors.New("bm: upload key is not configured")
)

// UploadTicket is what a signed upload URL grants.
type UploadTicket struct {
	Kind    string
	Target  uint
	User    uint
	Expires time.Time
	Nonce   string
}

// UploadKey is the signing key from the app key.
func UploadKey(appKey string) []byte { return nil }

// SignUpload signs t.
func SignUpload(key []byte, t UploadTicket) (string, error) { return "", nil }

// VerifyUpload checks a ticket.
func VerifyUpload(key []byte, ticket string, now time.Time) (UploadTicket, error) {
	return UploadTicket{}, nil
}

// IssueUpload signs and registers a ticket.
func IssueUpload(ctx context.Context, cache cooler.Cache, key []byte, kind string, target, user uint, now time.Time) (string, time.Time, error) {
	return "", time.Time{}, nil
}

// RedeemUpload verifies and consumes a ticket.
func RedeemUpload(ctx context.Context, cache cooler.Cache, key []byte, ticket string, now time.Time) (UploadTicket, error) {
	return UploadTicket{}, nil
}