import type { ActiveProject, RemoteRiskLevel } from './protocol.js';
export interface ApprovalRequestInput {
    approvalId: string;
    userId: string;
    sessionId: string;
    toolName: string;
    riskLevel: RemoteRiskLevel;
    inputHash: string;
    actionSummary: string;
    activeProject?: ActiveProject;
    expiresAt: Date;
}
export type ApprovalDecision = 'approved' | 'rejected' | 'timeout';
export interface ApprovalRecord extends ApprovalRequestInput {
    decision?: ApprovalDecision;
    decidedAt?: Date;
}
export declare function requiresApproval(riskLevel: RemoteRiskLevel): boolean;
export declare function isDestructiveRisk(riskLevel: RemoteRiskLevel): boolean;
export declare class ApprovalStore {
    private readonly approvals;
    request(input: ApprovalRequestInput): ApprovalRecord;
    resolve(approvalId: string, decision: ApprovalDecision, now?: Date): ApprovalRecord | undefined;
    consumeApproved(input: {
        approvalId: string;
        userId: string;
        sessionId: string;
        toolName: string;
        inputHash: string;
        now?: Date;
    }): boolean;
    get(approvalId: string): ApprovalRecord | undefined;
    findPending(input: {
        userId: string;
        sessionId: string;
        toolName: string;
        inputHash: string;
        now?: Date;
    }): ApprovalRecord | undefined;
    delete(approvalId: string): boolean;
    deleteForSession(sessionId: string): number;
}