//  Copyright © 2024 Apple, Inc. All rights reserved.
//

// TLS presentation language definitions for AT-specific data

// All timestamps with an "Ms" suffix are specified in milliseconds elapsed
// since 00:00:00 UTC on January 1, 1970

// hashes are calculated using SHA256
opaque HashValue<1..255>;

enum {
    // Release type enum contains a single ReleaseType enum value
    // extensionData content is a uint16 with value = 1 for the length of the enum value, and one byte for the enum value.
    RELEASE_TYPE(1);
    // extensionData content is a unit16 with value = 8 for the length of the timestamp, and a uint64 timestamp.
    INSERTION_TIME_MS(2);

    (255)
} ExtensionType;

// in extensions vectors, there may only be one Extension of any ExtensionType, Extensions are ordered by ExtensionType
struct {
    ExtensionType extensionType;
    opaque extensionData<0..65535>;
} Extension;

// Corresponds to the ATReleaseType proto enum
enum {
    PRODUCTION(0); // the default. For this value do not add the extension.
    SEED(1);

    (255)
} ReleaseType;

struct {
    SerializationVersion version;
    ATLeafType type;
    opaque description<0..255>;
    HashValue dataHash;
    uint64 expiryMs;

    // For ATLeafType RELEASE, may contain a RELEASE_TYPE extension
    // May contain an INSERTION_TIME_MS extension
    Extension extensions<0..65535>;
} ATLeafData


enum {
    V1(1);

    (255)
} SerializationVersion;

// Matches the ATLogDataType proto enum
enum {
    RELEASE(1);
    KEYBUNDLE_TGT(3);
    KEYBUNDLE_OTT(4);
    KEYBUNDLE_OHTTP(5);

    TEST_MARKER(100);

    (255)
} ATLeafType;