ConfigurationService.ts

import { Factory, Singleton } from "typescript-ioc";
import { readJSON } from "../utils/config-utils";
import { INetworkConfigJson } from "../utils/interfaces";
import { logException } from "../logger/logger";

@Singleton
@Factory(() => new ConfigurationService())
export class ConfigurationService {
  network!: string;
  networkRPC!: string;
  maxBlocksForEventReads!: number;
  maxRequestsPerSecond!: number | string;
  rewardEpoch?: number;
  requiredFtsoPerformanceWei!: string;
  boostingFactor!: number;
  votePowerCapBIPS!: number;
  uptimeVotigPeriodLengthSeconds!: number;
  uptimeVotingThreshold?: number;
  minForBEBGwei!: string;
  rewardAmountEpochWei?: string;
  apiPath?: string;
  numEpochs!: number;

  constructor() {
    if (process.env.CONFIG_FILE) {
      let configFile: INetworkConfigJson;
      try {
        configFile = readJSON<INetworkConfigJson>(process.env.CONFIG_FILE);
      } catch (error) {
        logException(error, `ConfigFile doesn't exist`);
        configFile = {} as INetworkConfigJson;
      }

      this.network = configFile.NETWORK ?? "flare";
      const rpcOverride = process.env[`RPC_URL_${this.network.toUpperCase()}`];
      this.networkRPC = rpcOverride ?? configFile.RPC ?? "https://flare-api.flare.network/ext/C/rpc";
      this.maxBlocksForEventReads = configFile.MAX_BLOCKS_FOR_EVENT_READS ?? 30;
      this.maxRequestsPerSecond = rpcOverride ? "Infinity" : (configFile.MAX_REQUESTS_PER_SECOND ?? 3);
      this.rewardEpoch = configFile.REWARD_EPOCH ?? undefined;
      this.requiredFtsoPerformanceWei = configFile.REQUIRED_FTSO_PERFORMANCE_WEI ?? "0";
      this.boostingFactor = configFile.BOOSTING_FACTOR ?? 5;
      this.votePowerCapBIPS = configFile.VOTE_POWER_CAP_BIPS ?? 500;
      this.uptimeVotigPeriodLengthSeconds = configFile.UPTIME_VOTING_PERIOD_LENGTH_SECONDS ?? 600;
      this.uptimeVotingThreshold = configFile.UPTIME_VOTING_THRESHOLD ?? undefined;
      this.minForBEBGwei = configFile.MIN_FOR_BEB_GWEI ?? "1000000000000000";
      this.rewardAmountEpochWei = configFile.REWARD_AMOUNT_EPOCH_WEI ?? undefined;
      this.apiPath = configFile.API_PATH ?? undefined;
      this.numEpochs = configFile.NUM_EPOCHS ? configFile.NUM_EPOCHS : 4;
    }
  }
}