import { CityName } from "../utils/types";
import type { TicketStatsDateRange } from "./tickets.types";
/** Legacy draft detection for tickets created before isDraft existed. */
export declare const isDraftSubjectIdExpr: {
    $or: ({
        $eq: (string | {
            $type: string;
        })[];
        $regexMatch?: undefined;
    } | {
        $eq: (string | null)[];
        $regexMatch?: undefined;
    } | {
        $regexMatch: {
            input: {
                $ifNull: string[];
            };
            regex: RegExp;
        };
        $eq?: undefined;
    })[];
};
/**
 * Draft when isDraft is true, not draft when isDraft is false,
 * otherwise fall back to legacy subject-id heuristic for older tickets.
 */
export declare const isDraftTicketExpr: {
    $or: ({
        $eq: (string | boolean)[];
        $and?: undefined;
    } | {
        $and: ({
            $or: ({
                $eq: (string | {
                    $type: string;
                })[];
                $regexMatch?: undefined;
            } | {
                $eq: (string | null)[];
                $regexMatch?: undefined;
            } | {
                $regexMatch: {
                    input: {
                        $ifNull: string[];
                    };
                    regex: RegExp;
                };
                $eq?: undefined;
            })[];
        } | {
            $ne: (string | boolean)[];
        })[];
        $eq?: undefined;
    })[];
};
export declare const ticketsWithCallSidMatch: (cityName: CityName, dateRange: TicketStatsDateRange) => {
    createdAt: {
        $gte: Date;
        $lte: Date;
    };
    cityName: string;
    callSid: {
        $exists: boolean;
        $nin: (string | null)[];
    };
};
export declare const subjectResolutionStages: (cityName: CityName) => Record<string, unknown>[];
export declare const runTicketStatsAggregate: <T>(pipeline: Record<string, unknown>[]) => Promise<T[]>;
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