/*!
 * Copyright (C) Microsoft Corporation. All rights reserved.
 */
/**
 * Text encoding types supported by VFS operations
 * This mirrors Node.js BufferEncoding without requiring Node.js types
 */
export type VfsEncoding = 'ascii' | 'utf8' | 'utf-8' | 'utf16le' | 'ucs2' | 'ucs-2' | 'base64' | 'base64url' | 'latin1' | 'binary' | 'hex';
/**
 * Options for writing files
 */
export interface WriteFileOptions {
    /** Whether to create parent directories if they don't exist (default: true) */
    createDirectories?: boolean;
    /** Text encoding to use (default: 'utf-8') */
    encoding?: VfsEncoding;
}
/**
 * Configuration for VFS permissions
 */
export interface VfsConfig {
    /** Current working directory - base for relative paths */
    cwd: string;
    /** Additional directories that can be read from */
    additionalReadableDirectories?: string[];
    /** Additional directories that can be written to */
    additionalWritableDirectories?: string[];
    /** Whether to allow reading from cwd (default: true) */
    allowCwdRead?: boolean;
    /** Whether to allow writing to cwd (default: true) */
    allowCwdWrite?: boolean;
}
/**
 * Core VFS interface for filesystem operations with permission control. This is an abstraction over the actual file system. A clone of what exists in PPUX
 */
export interface Vfs {
    readFile(path: string, encoding?: VfsEncoding): Promise<string>;
    /**
     * Read a file as raw bytes without any encoding transformation. Use for binary assets
     * (fonts, images, wasm, etc.). Returns `Uint8Array` rather than Node's `Buffer` so the
     * interface stays runtime-agnostic; Node implementations may return a `Buffer` (a
     * `Uint8Array` subclass) and `fetch` accepts it directly as a request body.
     */
    readFileBuffer(path: string): Promise<Uint8Array>;
    writeFile(path: string, content: string, options?: WriteFileOptions): Promise<void>;
    readdir(path: string): Promise<string[]>;
    mkdir(path: string, options?: {
        recursive?: boolean;
    }): Promise<void>;
    exists(path: string): Promise<boolean>;
    isDirectory(path: string): Promise<boolean>;
    join(...paths: string[]): string;
    basename(path: string): string;
    dirname(path: string): string;
    getCwd(): string;
    unlink(path: string): Promise<void>;
    rmdir(path: string): Promise<void>;
}
export type ReadOnlyVfs = Pick<Vfs, 'readFile' | 'readdir' | 'exists' | 'isDirectory' | 'join' | 'basename' | 'dirname' | 'getCwd'>;
/**
 * File statistics interface
 */
export interface VfsFileStats {
    size: number;
    mtime: Date;
    ctime: Date;
    isFile(): boolean;
    isDirectory(): boolean;
}
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