import type { FactItem, FactGroup, SplitData } from '../../types';
import FactFiscalCalculator from './FactFiscalCalculator';
/**
 * There are many facts properties for the same period but filed at different times.
 * This groups those together and resolves the period and trailing values for each group.
 */
export default class FactGrouper {
    private preferFirstValue;
    private createFactGroup;
    private createGroupKey;
    private toValue;
    /**
     * Map structure { 2022_Q3: { name: ... } }. NOTE: Does not include fiscal year report key.
     * All groups contain both trailing and period values, so use trailing from Q4 to get FY values.
     */
    buildFactGroupsByReportKey(params: {
        facts: FactItem[];
        splits?: SplitData[];
        cik: number;
        fiscalCalculator: FactFiscalCalculator;
        resolvePeriodValues: boolean;
        generateMissingGroups?: boolean;
    }): {
        factGroupsByReportKey: Map<string, FactGroup[]>;
        minYear: number;
        maxYear: number;
    };
}