import { TelemetryService } from '../telemetry/telemetry.service.js';
import { DevFlowDatabase } from '@devflow-tools/database';
export interface TelemetryEventInput {
    toolName: string;
    args: Record<string, unknown>;
    durationMs: number;
    success: boolean;
    error?: string;
    pluginName?: string;
    metadata?: {
        taskType?: string;
        query?: string;
        projectRoot?: string;
        runId?: string;
    };
}
export interface ProjectStats {
    projectRoot: string;
    totalRuns: number;
    successfulRuns: number;
    totalTokens: number;
    lastActiveAt: number;
    topTools: Array<{
        toolName: string;
        count: number;
    }>;
}
export interface BenchmarkRunResult {
    scenarioId: string;
    mode: 'baseline' | 'devflow';
    prepTimeMs: number;
    tokenCount: number;
    firstPassSuccess: boolean;
    reworkCount: number;
    durationMs: number;
    notes?: string;
    timestamp: number;
}
export declare class DataService {
    private telemetryService;
    private database?;
    private projectStats;
    private benchmarkResults;
    constructor(telemetryService: TelemetryService, database?: DevFlowDatabase | undefined);
    recordTelemetryEvent(event: TelemetryEventInput): Promise<{
        eventId: string;
    }>;
    getProjectStats(projectRoot: string): Promise<ProjectStats | null>;
    updateProjectStats(projectRoot: string, updates: Partial<ProjectStats>): Promise<ProjectStats>;
    recordBenchmarkResult(result: BenchmarkRunResult): void;
    getBenchmarkResults(projectRoot?: string): BenchmarkRunResult[];
    getPluginEffectiveness(pluginName?: string): Promise<any[]>;
}
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