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import * as Queries from './queries';
import { Cardano } from '@cardano-sdk/core';
import { Logger } from 'ts-log';
import { Pool, QueryResult } from 'pg';
export enum PoolWith {
Metadata = 'Metadata',
NoMetadata = 'NoMetadata',
RetiredState = 'RetiredState',
RetiringState = 'RetiringState',
ActiveState = 'ActiveState',
ActivatingState = 'ActivatingState',
PledgeMet = 'PledgeMet',
PledgeNotMet = 'PledgeNotMet'
}
export class PoolInfo {
name: string;
ticker: string;
id: Cardano.PoolId;
hashId: number;
updateId: number;
}
export class DbSyncStakePoolFixtureBuilder {
#db: Pool;
#logger: Logger;
constructor(db: Pool, logger: Logger) {
this.#db = db;
this.#logger = logger;
}
// eslint-disable-next-line complexity,sonarjs/cognitive-complexity
public async getPools(desiredQty: number, options?: { with?: PoolWith[] }): Promise<PoolInfo[]> {
this.#logger.debug(`About to fetch ${desiredQty} pools`);
let query = Queries.subQueries;
query += options?.with?.includes(PoolWith.Metadata)
? Queries.beginFindPoolsWithMetadata
: Queries.beginFindPoolsWithoutMetadata;
if (options?.with?.includes(PoolWith.PledgeMet) || options?.with?.includes(PoolWith.PledgeNotMet)) {
query += options?.with?.includes(PoolWith.PledgeMet) ? Queries.withPledgeMet : Queries.withPledgeNotMet;
} else {
query += Queries.withNoPledgeFilter;
}
if (options?.with?.includes(PoolWith.ActiveState)) {
query += Queries.withPoolActive;
} else if (options?.with?.includes(PoolWith.ActivatingState)) {
query += Queries.withPoolActivating;
} else if (options?.with?.includes(PoolWith.RetiredState)) {
query += Queries.withPoolRetired;
} else Iif (options?.with?.includes(PoolWith.RetiringState)) {
query += Queries.withPoolRetiring;
} else {
query += Queries.withNoStateFilter;
}
query += Queries.endFindPools;
const result: QueryResult<{
pool_id: string;
metadata: any;
hash_id: bigint;
update_id: bigint;
}> = await this.#db.query(query, [desiredQty]);
const resultsQty = result.rows.length;
Iif (result.rows.length === 0) {
throw new Error('No pools found');
} else Iif (resultsQty < desiredQty) {
this.#logger.warn(`${desiredQty} pools desired, only ${resultsQty} results found`);
}
return result.rows.map(({ pool_id, metadata, hash_id, update_id }) => ({
hashId: Number(hash_id.toString()),
id: pool_id as unknown as Cardano.PoolId,
name: metadata?.name,
ticker: metadata?.ticker,
updateId: Number(update_id.toString())
}));
}
public async getLasKnownEpoch(): Promise<number> {
this.#logger.debug('About to fetch las known epoch');
const result: QueryResult<{
no: number;
}> = await this.#db.query(Queries.lastKnownEpoch);
return result.rows.map(({ no }) => no)[0];
}
public async getDistinctPoolIds(desiredQty: number, withMetadata: boolean): Promise<Cardano.PoolId[]> {
this.#logger.debug('About to fetch las known epoch');
let query = Queries.beginPoolIds;
query += withMetadata ? Queries.withMetadata : Queries.withoutMetadata;
const result: QueryResult<{
pool_id: string;
}> = await this.#db.query(query);
const resultsQty = result.rows.length;
Iif (result.rows.length === 0) {
throw new Error('No pool ids found');
} else Iif (resultsQty < desiredQty) {
this.#logger.warn(`${desiredQty} pools desired, only ${resultsQty} results found`);
}
return result.rows.map(({ pool_id }) => pool_id as unknown as Cardano.PoolId);
}
}
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