export type RfmEventRow = {
    contact_id?: string | null;
    reachy_id?: string | null;
    event_name?: string | null;
    event_timestamp: string | Date;
    event_data?: any;
};
export type RfmContactRow = {
    id: string;
    reachy_id?: string | null;
    email?: string | null;
    phone?: string | null;
    is_subscribed?: boolean | null;
    communication_preferences?: any;
};
export type RfmAggregateRow = {
    contact_id: string;
    last_ts: Date;
    event_count: number;
};
export type RfmScoredContact = RfmAggregateRow & {
    recency_days: number;
    r_score: 1 | 2 | 3 | 4 | 5;
    f_score: 1 | 2 | 3 | 4 | 5;
    segment_key: string;
    email_ok: 0 | 1;
    sms_ok: 0 | 1;
};
export type RfmPreviewSegment = {
    segment_key: string;
    segment_name: string;
    users: number;
    percent: number;
    avm: number;
    email_reachability: number;
    sms_reachability: number;
};
export type RfmThresholdRow = {
    kind: 'r' | 'f';
    score: 1 | 2 | 3 | 4 | 5;
    min_value: number;
    max_value: number;
};
export type RfmComputeOptions = {
    from: string | Date;
    to: string | Date;
    rfEventName: string;
    filterContactIds?: Set<string> | string[] | null;
};
type PercentileCuts = [number, number, number, number];
export declare class RfmEngine {
    static aggregateFromEvents(contacts: RfmContactRow[], events: RfmEventRow[], opts: RfmComputeOptions): RfmAggregateRow[];
    static scoreAggregates(contacts: RfmContactRow[], aggregates: RfmAggregateRow[], opts: Pick<RfmComputeOptions, 'to'>): {
        scored: RfmScoredContact[];
        r_days_cuts: PercentileCuts;
        f_count_cuts: PercentileCuts;
    };
    static thresholdsFromScored(scored: RfmScoredContact[]): RfmThresholdRow[];
    static previewFromScored(scored: RfmScoredContact[]): RfmPreviewSegment[];
    static computeFromEvents(contacts: RfmContactRow[], events: RfmEventRow[], opts: RfmComputeOptions): {
        segments: RfmPreviewSegment[];
        thresholds: RfmThresholdRow[];
        scored: RfmScoredContact[];
    };
}
export {};
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