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method.ts
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method.ts
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/*
* Copyright 漏 2021 Lisk Foundation
*
* See the LICENSE file at the top-level directory of this distribution
* for licensing information.
*
* Unless otherwise agreed in a custom licensing agreement with the Lisk Foundation,
* no part of this software, including this file, may be copied, modified,
* propagated, or distributed except according to the terms contained in the
* LICENSE file.
*
* Removal or modification of this copyright notice is prohibited.
*/
import { ImmutableMethodContext, BlockHeader, BlockAssets } from '../../state_machine';
import { BaseMethod } from '../base_method';
import { calculateDefaultReward } from './calculate_reward';
import {
REWARD_NO_REDUCTION,
REWARD_REDUCTION_MAX_PREVOTES,
REWARD_REDUCTION_SEED_REVEAL,
} from './constants';
import { ModuleConfig, RandomMethod } from './types';
interface MethodInitArgs {
config: ModuleConfig;
}
export class RewardMethod extends BaseMethod {
private _randomMethod!: RandomMethod;
private _config!: ModuleConfig;
public init(args: MethodInitArgs) {
this._config = args.config;
}
public addDependencies(randomMethod: RandomMethod): void {
this._randomMethod = randomMethod;
}
public async getBlockReward(
context: ImmutableMethodContext,
header: BlockHeader,
assets: BlockAssets,
): Promise<[bigint, number]> {
const defaultReward = calculateDefaultReward(this._config, header.height);
if (defaultReward === BigInt(0)) {
return [defaultReward, REWARD_NO_REDUCTION];
}
const isValidSeedReveal = await this._randomMethod.isSeedRevealValid(
context,
header.generatorAddress,
assets,
);
if (!isValidSeedReveal) {
return [BigInt(0), REWARD_REDUCTION_SEED_REVEAL];
}
if (!header.impliesMaxPrevotes) {
return [
defaultReward / BigInt(this._config.rewardReductionFactorBFT),
REWARD_REDUCTION_MAX_PREVOTES,
];
}
return [defaultReward, REWARD_NO_REDUCTION];
}
}