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syntax = "proto3";

package proto;

/*-
 * ‌
 * Hedera Network Services Protobuf
 * 
 * Copyright (C) 2018 - 2023 Hedera Hashgraph, LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ‍
 */

import "state/common.proto";
import "basic_types.proto";

option java_package = "com.hederahashgraph.api.proto.java";
// <<>> This comment is special code for setting PBJ Compiler java package
option java_multiple_files = true;

/**
 * Representation of a Hedera Token Service staking info entity in the network Merkle tree.
 *
 * As with all network entities, staking info is per node and has a unique entity number represented as shard.realm.X.
 */
message StakingNodeInfo {
    /**
     * The unique entity number of the node. The shard and realm numbers are implied, based on the network
     * this entity came from.
     */
    int64 node_number = 1;
    /**
     * The minimum stake on this node that is required for this node to have a non-zero weight to
     * participate in the network consensus.
     */
    int64 min_stake = 2;
    /**
     * The maximum stake on this node that is considered to calculate its weight to participate in the network consensus.
     */
    int64 max_stake = 3;
    /**
     * The sum of balances of all accounts staked to this node who have opted to receive rewards.
     */
    int64 stake_to_reward = 4;
    /**
     * The sum of balances of all accounts staked to this node who have opted to decline rewards.
     */
    int64 stake_to_not_reward = 5;
    /**
     * The snapshot of stake_to_reward value at the beginning of the current staking period.
     * This is needed for calculating rewards for current staking period without considering changes to
     * stake_to_reward in the current staking period. It is reset at the beginning of every period.
     */
    int64 stake_reward_start = 6;
    /**
     * Tracks how much stake from stakeRewardStart will have unclaimed rewards due to accounts changing their staking
     * metadata in a way that disqualifies them for the current period; It is reset at the beginning of every period
     */
    int64 unclaimed_stake_reward_start = 7;
    /**
     * The total amount of effective hbar staked to this node. This is sum of stake_to_reward and stake_to_not_reward.
     * If the sum is greater than max_stake, then the effective stake is max_stake.
     * If the sum is less than min_stake, then the effective stake is 0.
     */
    int64 stake = 8;
    /**
     * An running sum of reward rates per hbar for the last 365+1 staking periods. The first element is the
     * is the reward up to and including the last full period that finished before the present. Second element is
     * the reward up to and including the period before that
     */
    repeated int64 reward_sum_history = 9;
    /**
     * The consensus weight of this node in the network. This is computed based on the stake of this node
     * at midnight UTC of the current day. If the stake of this node is less than minStake, then the weight is 0.
     * Sum of all weights of nodes in the network should be less than 500.
     * If the stake of this node A is greater than minStake, then the weight of this node A is calculated as:
     * (node A stake * 500/ total stake of all nodes)
     */
    int32 weight = 10;
    /**
     * The total staking rewards in tinybars that COULD be collected by all accounts staking to the current node after the end
     * of this staking period; assuming that no account "renounces" its rewards by, for example, setting declineReward=true.
     * When the current node is deleted, this amount will be subtracted from the total pending rewards of all accounts staking
     * to all nodes in the network in NetworkStakingRewards.
     */
    int64 pending_rewards = 11;
    /**
     * True if this node has been deleted from network.
     */
    bool deleted = 12;
}