import { OnModuleDestroy } from '@nestjs/common';
import { EventEmitter2 } from '@nestjs/event-emitter';
import { SpacesService } from '../../spaces/services/spaces.service';
import { SuggestionFeedback } from '../../spaces/spaces.constants';
import { SuggestionType } from '../buddy.constants';
import { EvaluatorResult } from './heartbeat.types';
import { PatternDetectorService } from './pattern-detector.service';
export interface BuddySuggestion {
    id: string;
    type: SuggestionType;
    title: string;
    reason: string;
    spaceId: string;
    metadata: Record<string, unknown>;
    createdAt: Date;
    expiresAt: Date;
}
export declare class SuggestionEngineService implements OnModuleDestroy {
    private readonly patternDetector;
    private readonly spacesService;
    private readonly eventEmitter;
    private readonly logger;
    private readonly suggestions;
    private readonly cooldowns;
    private cleanupTimer;
    private generating;
    constructor(patternDetector: PatternDetectorService, spacesService: SpacesService, eventEmitter: EventEmitter2);
    isOnCooldown(spaceId: string, type: SuggestionType, now?: number): boolean;
    clearAllCooldowns(): void;
    onModuleDestroy(): void;
    generateSuggestions(): Promise<BuddySuggestion[]>;
    private doGenerateSuggestions;
    getActiveSuggestions(spaceId?: string): BuddySuggestion[];
    getSuggestionOrThrow(id: string): BuddySuggestion;
    recordFeedback(id: string, feedback: SuggestionFeedback): {
        success: boolean;
        suggestion: BuddySuggestion;
    };
    createFromEvaluatorResults(results: EvaluatorResult[]): BuddySuggestion[];
    private hasDuplicateSuggestion;
    private hasSuggestionForPattern;
    private cleanupExpired;
    private resolveSpaceName;
}