import { TapoCredentials } from '../types';
export declare enum ProtocolType {
    KLAP = "klap",
    PASSTHROUGH = "passthrough"
}
export interface ProtocolOptions {
    preferredProtocol?: ProtocolType;
    enableFallback?: boolean;
    connectionTimeout?: number;
    minRequestInterval?: number;
}
export interface ProtocolInfo {
    type: ProtocolType;
    isSupported: boolean;
    priority: number;
    lastUsed?: number;
    errorCount: number;
}
/**
 * Manages protocol selection and fallback logic
 * Single responsibility: Protocol detection and selection
 */
export declare class ProtocolSelector {
    protected readonly ip: string;
    protected readonly credentials: TapoCredentials;
    private protocols;
    private activeProtocol;
    private readonly options;
    constructor(ip: string, credentials: TapoCredentials, options?: ProtocolOptions);
    /**
     * Select the best available protocol
     */
    selectProtocol(): Promise<ProtocolType>;
    /**
     * Get currently active protocol
     */
    getActiveProtocol(): ProtocolType | null;
    /**
     * Test if a specific protocol works with the device
     */
    testProtocol(protocol: ProtocolType): Promise<boolean>;
    /**
     * Record a protocol error and update its health status
     */
    recordProtocolError(protocol: ProtocolType): void;
    /**
     * Reset protocol error counts (useful for recovery)
     */
    resetProtocolErrors(): void;
    /**
     * Get protocol information for debugging
     */
    getProtocolInfo(): Map<ProtocolType, ProtocolInfo>;
    /**
     * Check if a protocol is healthy (low error count, recently used)
     */
    private isProtocolHealthy;
    /**
     * Get alternative protocols ordered by priority
     */
    private getAlternativeProtocols;
    /**
     * Perform actual protocol test (to be implemented by subclasses or injected)
     */
    protected performProtocolTest(_protocol: ProtocolType): Promise<boolean>;
    /**
     * Force switch to a specific protocol
     */
    forceProtocol(protocol: ProtocolType): void;
    /**
     * Get minimum request interval for the active protocol
     */
    getMinRequestInterval(): number;
}