import type { AnalysisReport, JSONReportOptions } from './interfaces/index.js';
export interface JSONReport {
    id: string;
    name: string;
    url: string;
    duration_ms: number;
    frames: {
        total: number;
        dropped: number;
        avg_fps: number;
        frame_budget_ms: number;
    };
    phase_breakdown: {
        style_recalc_ms: number;
        layout_ms: number;
        paint_ms: number;
        composite_ms: number;
        gpu_ms: number;
    };
    hotspots: {
        layout_thrashing: LayoutThrashingHotspotJSON[];
        gpu_stalls: GPUStallHotspotJSON[];
        long_tasks: LongTaskHotspotJSON[];
        heavy_paints: HeavyPaintHotspotJSON[];
    };
    detections: DetectionJSON[];
    suggestions: SuggestionJSON[];
    metadata: {
        browser_version: string;
        user_agent: string;
        viewport: {
            width: number;
            height: number;
        };
        device_pixel_ratio: number;
        timestamp: string;
        scenario: string;
        fps_target: number;
        report_generated_at: string;
        render_debugger_version: string;
    };
    summary: {
        total_issues: number;
        critical_issues: number;
        high_issues: number;
        warning_issues: number;
        info_issues: number;
        total_suggestions: number;
        estimated_total_speedup_pct: number;
    };
}
interface LayoutThrashingHotspotJSON {
    selector: string;
    reflow_cost_ms: number;
    occurrences: number;
    affected_nodes: number;
}
interface GPUStallHotspotJSON {
    element: string;
    stall_ms: number;
    occurrences: number;
    stall_type?: string;
}
interface LongTaskHotspotJSON {
    function: string;
    file: string;
    line: number;
    cpu_ms: number;
    occurrences: number;
    correlated_frame_drops?: number;
}
interface HeavyPaintHotspotJSON {
    paint_time_ms: number;
    raster_time_ms: number;
    layer_count: number;
    occurrences: number;
}
interface DetectionJSON {
    type: string;
    severity: string;
    description: string;
    location: {
        file?: string;
        line?: number;
        column?: number;
        selector?: string;
        element?: string;
    };
    metrics: {
        duration_ms: number;
        occurrences: number;
        impact_score: number;
        confidence?: string;
        estimated_speedup_pct?: number;
        frame_budget_impact_pct?: number;
    };
    details: Record<string, unknown>;
}
interface SuggestionJSON {
    id: string;
    type: 'css' | 'js' | 'native';
    target: string;
    description: string;
    patch: string;
    estimated_speedup_pct: number;
    speedup_explanation: string;
    confidence: string;
    warnings: string[];
    affected_files: string[];
}
export declare class JSONReporter {
    private readonly version;
    generate(report: AnalysisReport, options?: JSONReportOptions): string;
    private buildJSONReport;
    private buildHotspots;
    private buildDetections;
    private extractDetectionDetails;
    private buildSuggestions;
    private buildSummaryStats;
}
export {};