import type { TraceEvent } from './trace.types.js';
export type DetectionType = 'layout_thrashing' | 'gpu_stall' | 'long_task' | 'heavy_paint' | 'forced_reflow';
export type Severity = 'info' | 'warning' | 'high' | 'critical';
export type ConfidenceLevel = 'high' | 'medium' | 'low';
export interface DetectionLocation {
    file?: string;
    line?: number;
    column?: number;
    selector?: string;
    element?: string;
}
export interface RiskAssessment {
    userExperienceImpact: 'critical' | 'significant' | 'moderate' | 'minimal';
    regressionRisk: 'high' | 'medium' | 'low';
    fixPriority: number;
    factors: string[];
}
export interface DetectionMetrics {
    durationMs: number;
    occurrences: number;
    impactScore: number;
    confidence?: ConfidenceLevel;
    estimatedSpeedupPct?: number;
    speedupExplanation?: string;
    frameBudgetImpactPct?: number;
    riskAssessment?: RiskAssessment;
}
export interface Detection {
    type: DetectionType;
    severity: Severity;
    description: string;
    location: DetectionLocation;
    metrics: DetectionMetrics;
    evidence: TraceEvent[];
}
export interface DOMPropertyAccess {
    property: string;
    timestamp: number;
    type: 'read' | 'write';
}
export interface ReadWritePattern {
    frameId: number;
    reads: DOMPropertyAccess[];
    writes: DOMPropertyAccess[];
    forcedReflows: number;
}
export interface LayoutThrashDetection extends Detection {
    type: 'layout_thrashing';
    selector: string;
    reflowCostMs: number;
    occurrences: number;
    affectedNodes: number;
    readWritePattern: ReadWritePattern[];
}
export interface LayerInfo {
    layerId: number;
    bounds: {
        x: number;
        y: number;
        width: number;
        height: number;
    };
    compositingReasons: string[];
}
export interface GPUStallDetection extends Detection {
    type: 'gpu_stall';
    element: string;
    stallMs: number;
    occurrences: number;
    stallType: 'sync' | 'texture_upload' | 'raster';
    layerInfo?: LayerInfo;
}
export interface StackFrame {
    functionName: string;
    file: string;
    line: number;
    column: number;
    isSourceMapped: boolean;
}
export interface LongTaskDetection extends Detection {
    type: 'long_task';
    functionName: string;
    file: string;
    line: number;
    column: number;
    cpuMs: number;
    occurrences: number;
    correlatedFrameDrops: number;
    callStack: StackFrame[];
}
export interface HeavyPaintDetection extends Detection {
    type: 'heavy_paint';
    paintTimeMs: number;
    rasterTimeMs: number;
    layerCount: number;
}