/**
 * Aria Service Client
 * AI Enhancements, Content Analysis, Grading
 * Graceful degradation: never throws, always returns safe defaults
 */
export interface AriaClientConfig {
    baseUrl?: string;
    timeout?: number;
    fallbackToOffline?: boolean;
}
export interface Analysis {
    tone: string;
    readability: number;
    suggestions: string[];
    confidence: number;
}
export interface Suggestion {
    id: string;
    type: string;
    text: string;
    position: number;
    confidence: number;
}
export interface Grade {
    score: number;
    level: string;
    feedback: string;
    strengths: string[];
    improvements: string[];
}
export declare class AriaClient {
    private baseUrl;
    private timeout;
    private authToken?;
    private isConnected;
    private fallbackToOffline;
    constructor(config?: AriaClientConfig);
    connect(): Promise<void>;
    disconnect(): void;
    isConnectedStatus(): boolean;
    setAuthToken(token: string): void;
    analyzeContent(content: string, options?: Record<string, unknown>): Promise<Analysis>;
    getSuggestions(docId: string, content?: string): Promise<Suggestion[]>;
    gradeContent(content: string, rubric?: Record<string, unknown>): Promise<Grade>;
    isAvailable(): Promise<boolean>;
    private healthCheck;
    private request;
    private defaultAnalysis;
    private defaultGrade;
}
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