/**
 * Test Report Portal - Generate a static HTML dashboard from test results.
 *
 * Features:
 * - Test trend chart (pass/fail over time)
 * - Flaky test leaderboard
 * - Slowest test leaderboard
 * - Cost breakdown by suite
 * - Coverage gaps
 */
import type { SuiteResult } from './types';
export interface PortalOptions {
    /** Directory containing JSON report files */
    reportsDir: string;
    /** Output directory for the dashboard */
    outputDir: string;
}
export interface ReportEntry {
    filename: string;
    timestamp: string;
    suite: SuiteResult;
}
export interface TrendPoint {
    date: string;
    passed: number;
    failed: number;
    total: number;
}
export interface FlakyEntry {
    name: string;
    flakyCount: number;
    totalRuns: number;
    flakyRate: number;
}
export interface SlowestEntry {
    name: string;
    avgDuration: number;
    maxDuration: number;
    runs: number;
}
export interface CostEntry {
    suite: string;
    totalCost: number;
    testCount: number;
    avgCost: number;
}
export interface CoverageGap {
    area: string;
    reason: string;
}
export interface PortalData {
    trends: TrendPoint[];
    flaky: FlakyEntry[];
    slowest: SlowestEntry[];
    costs: CostEntry[];
    gaps: CoverageGap[];
    totalReports: number;
    lastUpdated: string;
}
/**
 * Load all JSON report files from a directory.
 */
export declare function loadReports(dir: string): ReportEntry[];
/**
 * Compute trend data from report entries.
 */
export declare function computeTrends(entries: ReportEntry[]): TrendPoint[];
/**
 * Identify flaky tests (tests that both pass and fail across runs).
 */
export declare function computeFlaky(entries: ReportEntry[]): FlakyEntry[];
/**
 * Find slowest tests by average duration.
 */
export declare function computeSlowest(entries: ReportEntry[]): SlowestEntry[];
/**
 * Compute cost breakdown by suite.
 */
export declare function computeCosts(entries: ReportEntry[]): CostEntry[];
/**
 * Detect coverage gaps.
 */
export declare function detectGaps(entries: ReportEntry[]): CoverageGap[];
/**
 * Build the full portal data from reports directory.
 */
export declare function buildPortalData(reportsDir: string): PortalData;
/**
 * Generate the static HTML dashboard.
 */
export declare function generatePortalHTML(data: PortalData): string;
/**
 * Generate the portal dashboard to the output directory.
 */
export declare function generatePortal(options: PortalOptions): string;
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