/**
 * Gateway Stores - Plan and Approval persistence
 *
 * In-memory implementations for development.
 * Replace with database-backed stores for production.
 */
import type { TerraformPlanRecord, ApprovalRequest, PlanStore, ApprovalStore } from './types.js';
export declare class InMemoryPlanStore implements PlanStore {
    private plans;
    save(record: TerraformPlanRecord): Promise<void>;
    get(planId: string): Promise<TerraformPlanRecord | null>;
    updateStatus(planId: string, status: TerraformPlanRecord['status']): Promise<void>;
    cleanup(): Promise<number>;
}
export declare class InMemoryApprovalStore implements ApprovalStore {
    private approvals;
    save(request: ApprovalRequest): Promise<void>;
    get(approvalId: string): Promise<ApprovalRequest | null>;
    approve(approvalId: string, resolution: ApprovalRequest['resolution']): Promise<void>;
    reject(approvalId: string, resolution: ApprovalRequest['resolution']): Promise<void>;
    getExpired(): Promise<ApprovalRequest[]>;
    getPending(): Promise<ApprovalRequest[]>;
    cleanup(maxAgeMs?: number): Promise<number>;
}
export declare function getPlanStore(): PlanStore;
export declare function getApprovalStore(): ApprovalStore;
export declare function setPlanStore(store: PlanStore): void;
export declare function setApprovalStore(store: ApprovalStore): void;
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