@twocaretcat/astro-snapshot/esm/utils.d.ts

An Astro integration for generating screenshots of your pages automatically at build time. Perfect for creating social images, content previews, dynamic icons, and more!

import type { Format } from './types.js';
import type { AstroIntegrationLogger } from 'astro';
/**
 * Extracts and normalizes the image format from a given file path.
 *
 * Determines the file extension following the last period (".") in the path,
 * ensuring it is part of the filename (not a directory). The function
 * normalizes certain extensions (e.g., `"jpg"` → `"jpeg"`) and validates
 * that the format is supported.
 *
 * @param path - The file path to extract the format from.
 * @returns The normalized image format as a {@link Format}.
 *
 * @throws {Error} If no valid file extension is found or the extension is unsupported.
 *
 * @example
 * ```ts
 * getFormat('/images/photo.jpg'); // 'jpeg'
 * getFormat('C:\\assets\\icon.webp'); // 'webp'
 * getFormat('file.png'); // 'png'
 * ```
 */
export declare function getFormat(path: string): Format;
/**
 * Checks if a file exists at the given path.
 *
 * @param path - The file path to check.
 * @returns A promise that resolves to `true` if the file exists, `false` otherwise.
 *
 * @example
 * ```ts
 * if (await fileExists('/path/to/file.png')) {
 *   console.log('File exists');
 * }
 * ```
 */
export declare function fileExists(path: string): Promise<boolean>;
/**
 * Logs a status message showing input/output file paths with optional warning.
 *
 * @param logger - The Astro integration logger instance to use for output
 * @param inputPath - The source file path to display
 * @param outputPath - The destination file path to display
 * @param warningLabel - Optional warning text to append. If provided, logs as warning in yellow; otherwise logs as info in green
 *
 * @example
 * ```ts
 * logStatus(logger, 'src/input.ts', 'dist/output.js');
 * // Outputs (green): ▶ src/input.ts → dist/output.js
 *
 * logStatus(logger, 'src/input.ts', 'dist/output.js', 'skipped');
 * // Outputs (yellow): ▶ src/input.ts → dist/output.js (skipped)
 * ```
 */
export declare function logStatus(logger: AstroIntegrationLogger, inputPath: string, outputPath: string, warningLabel?: string): void;
/**
 * Formats a duration in milliseconds as a human-readable string.
 *
 * Values under 1000ms are displayed as whole milliseconds (e.g., "53ms").
 * Values 1000ms and above are displayed as seconds with one decimal place (e.g., "1.4s").
 *
 * @param ms - The duration in milliseconds to format
 * @returns A formatted duration string with appropriate unit suffix
 *
 * @example
 * ```ts
 * formatDuration(53);    // "53ms"
 * formatDuration(1400);  // "1.4s"
 * formatDuration(5230);  // "5.2s"
 * ```
 */
export declare function formatDuration(ms: number): string;
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