/**
 * # File Create
 * Messages to create a new file entry.
 *
 * ### Keywords
 * The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
 * "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
 * document are to be interpreted as described in
 * [RFC2119](https://www.ietf.org/rfc/rfc2119) and clarified in
 * [RFC8174](https://www.ietf.org/rfc/rfc8174).
 */
syntax = "proto3";

package proto;

// SPDX-License-Identifier: Apache-2.0
option java_package = "com.hederahashgraph.api.proto.java";
// <<<pbj.java_package = "com.hedera.hapi.node.file">>> This comment is special code for setting PBJ Compiler java package
option java_multiple_files = true;

import "services_basic_types.proto";
import "services_timestamp.proto";

/**
 * Create a new file.
 *
 * If successful, the new file SHALL contain the (possibly empty) content
 * provided in the `contents` field.<br/>
 * When the current consensus time exceeds the `expirationTime` value, the
 * network SHALL expire the file, and MAY archive the state entry.
 *
 * #### Signature Requirements
 * The HFS manages file authorization in a manner that can be confusing.
 * The core element of file authorization is the `keys` field,
 * which is a `KeyList`; a list of individual `Key` messages, each of which
 * may represent a simple or complex key.<br/>
 * The file service transactions treat this list differently.<br/>
 * A `fileCreate`, `fileAppend`, or `fileUpdate` MUST have a valid signature
 * from _each_ key in the list.<br/>
 * A `fileDelete` MUST have a valid signature from _at least one_ key in
 * the list. This is different, and allows a file "owned" by many entities
 * to be deleted by any one of those entities. A deleted file cannot be
 * restored, so it is important to consider this when assigning keys for
 * a file.<br/>
 * If any of the keys in a `KeyList` are complex, the full requirements of
 * each complex key must be met to count as a "valid signature" for that key.
 * A complex key structure (i.e. a `ThresholdKey`, or `KeyList`, possibly
 * including additional `ThresholdKey` or `KeyList` descendants) may be
 * assigned as the sole entry in a file `keys` field to ensure all transactions
 * have the same signature requirements.
 *
 * If the `keys` field is an empty `KeyList`, then the file SHALL be immutable
 * and the only transaction permitted to modify that file SHALL be a
 * `fileUpdate` transaction with _only_ the `expirationTime` set.
 *
 * #### Shard and Realm
 * The current API ignores shardID and realmID. All files are created in
 * shard 0 and realm 0. Future versions of the API may support multiple
 * realms and multiple shards.
 *
 * ### Block Stream Effects
 * After the file is created, the FileID for it SHALL be returned in the
 * transaction receipt, and SHALL be recorded in the transaction record.
 */
message FileCreateTransactionBody {
    /**
     * An expiration timestamp.
     * <p>
     * When the network consensus time exceeds this value, the network
     * SHALL expire the file.
     */
    Timestamp expirationTime = 2;

    /**
     * A list of keys that represent file "owners".
     * <p>
     * Every `Key` in this list MUST sign this `fileCreate` transaction, as
     * well as any `fileUpdate` or `fileAppend` that modifies this file.<br/>
     * At least one `Key` in this list MUST sign any `fileDelete` transaction
     * to delete this file.<br/>
     * If this `KeyList` is empty, the file SHALL be created immutable and the
     * only field that may be changed subsequently is the `expirationTime`.
     * An immutable file cannot be deleted except with a `systemDelete`
     * transaction, or by expiration.
     */
    KeyList keys = 3;

    /**
     * A byte array of file content.
     * <p>
     * The file SHALL be created with initial content equal to this field.
     */
    bytes contents = 4;

    /**
     * A shard in which this file is created
     */
    ShardID shardID = 5;

    /**
     * A realm in which this file is created.
     * <p>
     * The shard number for this realm MUST match the value in `shardID`.<br/>
     * Currently, this MUST be `0` for both fields.<br/>
     * If the desired realm is `0.0`, this SHOULD NOT be set.
     */
    RealmID realmID = 6;

    /**
     * The "create realm" was never enabled, and
     * should not be possible on file creation.<br/>
     * An admin key for a new realm, if one is created.
     * Added deprecated tag 2024-05.
     */
    Key newRealmAdminKey = 7 [deprecated = true];

    /**
     * A short description of this file.
     * <p>
     * This value, if set, MUST NOT exceed `transaction.maxMemoUtf8Bytes`
     * (default 100) bytes when encoded as UTF-8.
     */
    string memo = 8;
}