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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | 41x 41x 41x 5x 5x 5x 5x 6x 6x 6x 6x 6x 6x 8x 8x 8x 1x 1x 1x 3x 3x 3x 3x 3x 3x | import { ActiveStakeModel, CirculatingSupplyModel, EpochModel, ProtocolParamsModel, TotalSupplyModel } from './types';
import { Cardano } from '@cardano-sdk/core';
import { LedgerTipModel, findLedgerTipOptions } from '../../util/DbSyncProvider';
import { Logger } from 'ts-log';
import { Pool, QueryResult } from 'pg';
import Queries from './queries';
export class NetworkInfoBuilder {
#db: Pool;
#logger: Logger;
constructor(db: Pool, logger: Logger) {
this.#db = db;
this.#logger = logger;
}
public async queryCirculatingSupply() {
this.#logger.debug('About to query circulation supply');
const result: QueryResult<CirculatingSupplyModel> = await this.#db.query(Queries.findCirculatingSupply);
return result.rows[0].circulating_supply;
}
public async queryTotalSupply(maxLovelaceSupply: Cardano.Lovelace) {
this.#logger.debug('About to query total supply');
const result: QueryResult<TotalSupplyModel> = await this.#db.query(Queries.findTotalSupply, [maxLovelaceSupply]);
return result.rows[0].total_supply;
}
public async queryActiveStake() {
this.#logger.debug('About to query active stake');
const result: QueryResult<ActiveStakeModel> = await this.#db.query(Queries.findActiveStake);
return result.rows[0].active_stake;
}
public async queryLatestEpoch() {
this.#logger.debug('About to query the last epoch');
const result: QueryResult<EpochModel> = await this.#db.query(Queries.findLatestCompleteEpoch);
return result.rows[0].no;
}
public async queryLedgerTip() {
this.#logger.debug('About to query the ledger tip');
const result: QueryResult<LedgerTipModel> = await this.#db.query(findLedgerTipOptions);
return result.rows[0];
}
public async queryProtocolParams() {
this.#logger.debug('About to query protocol params');
const result: QueryResult<ProtocolParamsModel> = await this.#db.query(Queries.findProtocolParams);
return result.rows[0];
}
}
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