//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package kms

import (
	"context"
	"errors"
	"net/http"
	"sync"
	"time"

	"github.com/minio/kms-go/kes"
	"github.com/minio/madmin-go/v3"
)

type kesConn struct {
	defaultKeyID string
	client       *kes.Client
}

// and checks whether they are well-formed. It returns the sealed object key
// on success. If the metadata contains both, a KMS master key ID and a sealed
// KMS data key it returns both. If the metadata does not contain neither a
// KMS master key ID nor a sealed KMS data key it returns an empty keyID and
// KMS data key. Otherwise, it returns an error.

package kms

import (
	"fmt"
	"net/http"
)

var (
	// ErrPermission is an error returned by the KMS when it has not
	// enough permissions to perform the operation.
	ErrPermission = Error{
		Code:    http.StatusForbidden,
		APICode: "kms:NotAuthorized",
		Err:     "insufficient permissions to perform KMS operation",
	}

false, ModTime: UTCNow(), Size: 3430, Mode: 0x0, Metadata: map[string]string{"X-Minio-Internal-Server-Side-Encryption-Iv": "jIJPsrkkVYYMvc7edBrNl+7zcM7+ZwXqMb/YAjBO/ck=", "X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id": "my-minio-key", "X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key": "IAAfAP2p7ZLv3UpLwBnsKkF2mtWba0qoY42tymK0szRgGvAxBNcXyHXYooe9dQpeeEJWgKUa/8R61oCy1mFwIg==", "X-Minio-Internal-Server-Side-Encryption-S3-Sealed-Key": "IAAfAPFYRDkHVirJBJxBixNj3PLWt78dFuUTyTLIdLG820J7...

)

// NewStub returns a stub of KMS for testing
func NewStub(defaultKeyName string) *KMS {
	return &KMS{
		Type:           Builtin,
		DefaultKey:     defaultKeyName,
		latencyBuckets: defaultLatencyBuckets,
		latency:        make([]atomic.Uint64, len(defaultLatencyBuckets)),
		conn: &StubKMS{
			KeyNames: []string{defaultKeyName},
		},
	}
}

// StubKMS is a KMS implementation for tests
type StubKMS struct {

			writeErrorResponse(r.Context(), w, apiErr, r.URL)
		}
		return
	}

	// Verify if KMS is reachable if its configured
	if GlobalKMS != nil {
		ctx, cancel := context.WithTimeout(r.Context(), time.Minute)
		defer cancel()

		if _, err := GlobalKMS.GenerateKey(ctx, &kms.GenerateKeyRequest{AssociatedData: kms.Context{"healthcheck": ""}}); err != nil {
			switch r.Method {
			case http.MethodHead:

	"github.com/minio/minio/internal/kms"
	"github.com/minio/pkg/v3/env"
	"github.com/minio/pkg/v3/workers"
)

// keyrotate:
//   apiVersion: v1
//   bucket: BUCKET
//   prefix: PREFIX
//   encryption:
//     type: sse-s3 # valid values are sse-s3 and sse-kms
//     key: <new-kms-key> # valid only for sse-kms
//     context: <new-kms-key-context> # valid only for sse-kms
// # optional flags based filtering criteria

    "ZoEoZdLlzVbOlT9rbhD7ZN7TLyiYXSAlB79uGEge",
    "ERRO:",
    "(?Rm)^.*(#|//)\\s*spellchecker:disable-line$", # ignore line
]

[default.extend-words]
"encrypter" = "encrypter"
"kms" = "kms"
"requestor" = "requestor"

[default.extend-identifiers]
"HashiCorp" = "HashiCorp"

[type.go.extend-identifiers]
"bui" = "bui"
"dm2nd" = "dm2nd"
"ot" = "ot"
"ParseND" = "ParseND"

	errKMSNotConfigured               = errors.New("KMS not configured for a server side encrypted objects")
	errKMSKeyNotFound                 = errors.New("Unknown KMS key ID")
	errKMSDefaultKeyAlreadyConfigured = errors.New("A default encryption already exists on KMS")
	// Additional MinIO errors for SSE-C requests.

	}

	KMS, err := kms.Connect(GlobalContext, &kms.ConnectionOptions{
		CADir: globalCertsCADir.Get(),
	})
	if err != nil {
		logger.Fatal(err, "Failed to connect to KMS")
	}

	if _, err = KMS.GenerateKey(GlobalContext, &kms.GenerateKeyRequest{}); errors.Is(err, kms.ErrKeyNotFound) {
		err = KMS.CreateKey(GlobalContext, &kms.CreateKeyRequest{Name: KMS.DefaultKey})
	}