/**
 * Platform information
 */
export interface PlatformInfo {
    platform: 'win32' | 'darwin' | 'linux';
    isWindows: boolean;
    isMac: boolean;
    isLinux: boolean;
    homeDir: string;
    separator: string;
}
/**
 * Path resolution result
 */
export interface PathResolutionResult {
    absolutePath: string;
    isValid: boolean;
    error?: string;
    platform: string;
}
/**
 * PathResolver Service
 * Handles cross-platform path resolution and validation
 *
 * Design Principles:
 * - All paths must be absolute
 * - Platform-specific validation (Windows drive letters, Unix root)
 * - Home directory expansion support (~)
 * - Environment variable expansion (%VAR% on Windows, $VAR on Unix)
 */
export declare class PathResolverService {
    private readonly platformInfo;
    constructor();
    /**
     * Get current platform information
     */
    getPlatformInfo(): PlatformInfo;
    /**
     * Resolve a path to an absolute path with platform-specific handling
     * @param inputPath - The path to resolve (can include ~ or env vars)
     * @param fallbackPath - Optional fallback if resolution fails
     * @returns Resolution result with absolute path or error
     */
    resolve(inputPath: string, fallbackPath?: string): PathResolutionResult;
    /**
     * Get default download path for current platform
     * @returns Platform-specific default download directory
     */
    getDefaultDownloadPath(): string;
    /**
     * Expand home directory shorthand (~)
     * Works on all platforms
     */
    private expandHomeDirectory;
    /**
     * Expand environment variables
     * - Windows: %VAR%
     * - Unix: $VAR or ${VAR}
     */
    private expandEnvironmentVariables;
    /**
     * Normalize path separators for current platform
     */
    private normalizeSeparators;
    /**
     * Check if path is absolute (platform-aware)
     * This is more reliable than path.isAbsolute() for cross-platform testing
     */
    private isPathAbsolute;
    /**
     * Validate path for current platform
     * @returns Error message if invalid, undefined if valid
     */
    private validatePlatformPath;
    /**
     * Validate Windows-specific path requirements
     */
    private validateWindowsPath;
    /**
     * Validate Unix-specific path requirements (Mac/Linux)
     */
    private validateUnixPath;
    /**
     * Format a path example for current platform
     * Useful for error messages and UI placeholders
     */
    getPathExample(type: 'downloads' | 'documents' | 'desktop' | 'custom'): string;
    /**
     * Check if a path is safe (no directory traversal)
     * This is a secondary check after resolution
     */
    isSafePath(absolutePath: string): boolean;
}
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