import type { approvalResource, ApprovalRow, ApprovalUpdate } from './approval.schema';
import type { inputRequestResource, InputRequestRow, InputRequestUpdate } from './input-request.schema';
export type ControlRequestClaimStatus = 'claimed' | 'lost' | 'not_found' | 'not_actionable';
export interface ClaimableControlRequestRow {
    status?: string | null;
    leaseOwner?: string | null;
    leaseExpiresAt?: Date | string | null;
    expiresAt?: Date | string | null;
}
export interface ControlRequestClaimOptions {
    leaseOwner: string;
    leaseDurationMs?: number;
    now?: Date | string | number;
}
export interface ControlRequestClaimResult<TRow extends ClaimableControlRequestRow> {
    status: ControlRequestClaimStatus;
    resource: TRow | null;
    leaseOwner: string;
    leaseExpiresAt: string;
    reason?: string;
}
export type ControlRequestClaimResource = typeof approvalResource | typeof inputRequestResource;
export type ControlRequestClaimRow<TResource extends ControlRequestClaimResource> = TResource extends typeof approvalResource ? ApprovalRow : InputRequestRow;
export type ControlRequestClaimUpdate<TResource extends ControlRequestClaimResource> = TResource extends typeof approvalResource ? ApprovalUpdate : InputRequestUpdate;
export interface ControlRequestClaimDatabase<TResource extends ControlRequestClaimResource> {
    findByIri<TRow = ControlRequestClaimRow<TResource>>(resource: TResource, iri: string): Promise<TRow | null>;
    updateByIri<TRow = ControlRequestClaimRow<TResource>>(resource: TResource, iri: string, data: ControlRequestClaimUpdate<TResource>): Promise<TRow | null>;
}
export declare function claimControlRequest<TResource extends ControlRequestClaimResource>(db: ControlRequestClaimDatabase<TResource>, resource: TResource, iri: string, input: ControlRequestClaimOptions): Promise<ControlRequestClaimResult<ControlRequestClaimRow<TResource>>>;
export declare function isControlRequestStatusClaimable(status: unknown): boolean;