import type { ScanResult } from "../types.js";
export interface ApiConfig {
    baseUrl: string;
    apiKey: string;
    instanceId: string;
}
export interface ApiResponse<T = unknown> {
    ok: boolean;
    status: number;
    data?: T;
    error?: string;
}
export interface RegistrationPayload {
    hostname: string;
    platform: string;
    arch: string;
    nodeVersion: string;
    protocolVersion: string;
    label?: string;
}
export interface RegistrationResult {
    instanceId: string;
    apiKey: string;
    label: string;
    registeredAt: string;
}
export interface SyncPayload {
    instanceId: string;
    scan: ScanResult;
    metadata: {
        hostname: string;
        platform: string;
        syncedAt: string;
        protocolVersion: string;
    };
}
export interface SyncResult {
    scanId: string;
    receivedAt: string;
    projectCount: number;
    apiCount: number;
    connectionCount: number;
}
export interface InstanceStatus {
    instanceId: string;
    label: string;
    lastSync: string | null;
    scanCount: number;
    status: "active" | "inactive" | "suspended";
}
export interface HeartbeatResult {
    acknowledged: boolean;
    serverTime: string;
}
export declare function loadCredentials(): ApiConfig | null;
export declare function saveCredentials(config: ApiConfig): void;
export declare function clearCredentials(): void;
export declare function getApiBaseUrl(): string;
/**
 * Register this instance with the Carbon6 API.
 * Returns instance ID and API key for future requests.
 */
export declare function registerInstance(label?: string): Promise<ApiResponse<RegistrationResult>>;
/**
 * Sync a scan result to the Carbon6 cloud.
 */
export declare function syncScan(scan: ScanResult): Promise<ApiResponse<SyncResult>>;
/**
 * Get instance status from the Carbon6 API.
 */
export declare function getInstanceStatus(): Promise<ApiResponse<InstanceStatus>>;
/**
 * Send heartbeat to Carbon6 API.
 */
export declare function heartbeat(): Promise<ApiResponse<HeartbeatResult>>;
/**
 * Fetch a list of remote scans for this instance.
 */
export declare function listRemoteScans(limit?: number): Promise<ApiResponse<SyncResult[]>>;
/**
 * Delete this instance registration from the Carbon6 API.
 */
export declare function deregisterInstance(): Promise<ApiResponse<{
    deleted: boolean;
}>>;
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