/**
 * @license
 * Copyright (c) 2019 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt The complete set of authors may be found
 * at http://polymer.github.io/AUTHORS.txt The complete set of contributors may
 * be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by
 * Google as part of the polymer project is also subject to an additional IP
 * rights grant found at http://polymer.github.io/PATENTS.txt
 */
import { BrowserName } from './browser';
import { Config } from './config';
import { ExtendedPackageDependencyMap, Measurement } from './types';
/**
 * Expected format of the top-level JSON config file. Note this interface is
 * used to generate the JSON schema for validation.
 */
export interface ConfigFile {
    /**
     * Root directory to serve benchmarks from (default current directory).
     */
    root?: string;
    /**
     * Minimum number of times to run each benchmark (default 50).
     * @TJS-type integer
     * @TJS-minimum 2
     */
    sampleSize?: number;
    /**
     * The maximum number of minutes to spend auto-sampling (default 3).
     * @TJS-minimum 0
     */
    timeout?: number;
    /**
     * The degrees of difference to try and resolve when auto-sampling
     * (e.g. 0ms, +1ms, -1ms, 0%, +1%, -1%, default 0%).
     */
    horizons?: string[];
    /**
     * Benchmarks to run.
     * @TJS-minItems 1
     */
    benchmarks: ConfigFileBenchmark[];
    /**
     * Whether to automatically convert ES module imports with bare module
     * specifiers to paths.
     */
    resolveBareModules?: boolean;
    /**
     * An optional reference to the JSON Schema for this file.
     *
     * If none is given, and the file is a valid tachometer config file,
     * tachometer will write back to the config file to give this a value.
     */
    $schema?: string;
}
/**
 * Expected format of a benchmark in a JSON config file.
 */
interface ConfigFileBenchmark {
    /**
     * A fully qualified URL, or a local path to an HTML file or directory. If a
     * directory, must contain an index.html. Query parameters are permitted on
     * local paths (e.g. 'my/benchmark.html?foo=bar').
     */
    url?: string;
    /**
     * An optional label for this benchmark. Defaults to the URL.
     */
    name?: string;
    /**
     * Which browser to run the benchmark in.
     *
     * Options:
     *   - chrome (default)
     *   - chrome-headless
     *   - firefox
     *   - firefox-headless
     *   - safari
     *   - edge
     *   - ie
     */
    browser?: string | BrowserConfigs;
    /**
     * Which time interval to measure.
     *
     * Options:
     *   - callback: bench.start() to bench.stop() (default for local paths)
     *   - fcp: first contentful paint (default for fully qualified URLs)
     *   - global: result returned from window.tachometerResult (or custom
     *       expression set via measurementExpression)
     *   - {
     *       performanceEntry: {
     *         //
     * https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEntry/name
     *         name: string;
     *       }
     *     }
     */
    measurement?: ConfigFileMeasurement;
    /**
     * Expression to use to retrieve global result.  Defaults to
     * `window.tachometerResult`.
     */
    measurementExpression?: string;
    /**
     * Optional NPM dependency overrides to apply and install. Only supported with
     * local paths.
     */
    packageVersions?: ConfigFilePackageVersion;
    /**
     * Recursively expand this benchmark configuration with any number of
     * variations. Useful for testing the same base configuration with e.g.
     * multiple browers or package versions.
     */
    expand?: ConfigFileBenchmark[];
}
declare type ConfigFileMeasurement = 'callback' | 'fcp' | 'global' | Measurement | Array<Measurement>;
declare type BrowserConfigs = ChromeConfig | FirefoxConfig | SafariConfig | EdgeConfig | IEConfig;
interface BrowserConfigBase {
    /**
     * Name of the browser:
     *
     * Options:
     *   - chrome
     *   - firefox
     *   - safari
     *   - edge
     *   - ie
     */
    name: BrowserName;
    /**
     * A remote WebDriver server HTTP address to launch the browser from.
     */
    remoteUrl?: string;
    /**
     * The size of new windows created from this browser. Defaults to 1024x768.
     */
    windowSize?: WindowSize;
}
interface WindowSize {
    /**
     * Width of the browser window in pixels. Defaults to 1024.
     *
     * @TJS-type integer
     * @TJS-minimum 0
     */
    width: number;
    /**
     * Height of the browser window in pixels. Defaults to 768.
     *
     * @TJS-type integer
     * @TJS-minimum 0
     */
    height: number;
}
interface ChromeConfig extends BrowserConfigBase {
    name: 'chrome';
    /**
     * Whether to launch the headless (no GUI) version of this browser.
     */
    headless?: boolean;
    /**
     * Path to the binary to use when launching this browser, instead of the
     * default one.
     */
    binary?: string;
    /**
     * Additional command-line arguments to pass when launching the browser.
     */
    addArguments?: string[];
    /**
     * Command-line arguments that WebDriver normally adds by default when
     * launching the browser, which you would like to omit.
     */
    removeArguments?: string[];
    /**
     * Optional CPU Throttling rate. (1 is no throttle, 2 is 2x slowdown,
     * etc). This is currently only supported in headless mode.
     * @TJS-minimum 1
     */
    cpuThrottlingRate?: number;
}
interface FirefoxConfig extends BrowserConfigBase {
    name: 'firefox';
    /**
     * Whether to launch the headless (no GUI) version of this browser.
     */
    headless?: boolean;
    /**
     * Path to the binary to use when launching this browser, instead of the
     * default one.
     */
    binary?: string;
    /**
     * Additional command-line arguments to pass when launching the browser.
     */
    addArguments?: string[];
    /**
     * Advanced preferences that are usually set from the about:config page
     * in Firefox (see
     * https://support.mozilla.org/en-US/kb/about-config-editor-firefox).
     */
    preferences?: {
        [name: string]: string | number | boolean;
    };
}
interface SafariConfig extends BrowserConfigBase {
    name: 'safari';
}
interface EdgeConfig extends BrowserConfigBase {
    name: 'edge';
}
interface IEConfig extends BrowserConfigBase {
    name: 'ie';
}
interface ConfigFilePackageVersion {
    /**
     * Required label to identify this version map.
     */
    label: string;
    /**
     * Map from NPM package to version. Any version syntax supported by NPM is
     * supported here.
     */
    dependencies: ExtendedPackageDependencyMap;
}
/**
 * Validate the given JSON object parsed from a config file, and expand it into
 * a fully specified configuration.
 */
export declare function parseConfigFile(parsedJson: unknown): Promise<Partial<Config>>;
export declare function writeBackSchemaIfNeeded(rawConfigObj: Partial<ConfigFile>, configFile: string): Promise<void>;
export {};