/**
* Node.js File System Implementation
*
* This module provides a Node.js implementation of the file system interface
* defined in the domain layer.
*/
import { promises as fs } from 'fs';
import * as path from 'path';
import { IFileSystem, FileStats, DirEntry } from '../../domain/files/interfaces.js';
export class NodeFileSystem implements IFileSystem {
async readFile(filePath: string): Promise<string> {
return fs.readFile(filePath, 'utf-8');
}
async stat(filePath: string): Promise<FileStats> {
const stats = await fs.stat(filePath);
return {
size: stats.size,
mtime: stats.mtime,
isDirectory: () => stats.isDirectory(),
isFile: () => stats.isFile(),
isReadOnly: () => {
// On Windows, check if the file has write permission
// On Unix-like systems, check owner write permission
const mode = stats.mode;
if (process.platform === 'win32') {
// On Windows, we can't easily determine if a file is read-only from stats.mode
// This is a simplified check - in a real implementation you might want to use platform-specific APIs
return false;
} else {
// Check if owner has write permission (0o200)
return (mode & 0o200) === 0;
}
}
};
}
async readDir(dirPath: string): Promise<DirEntry[]> {
const entries = await fs.readdir(dirPath, { withFileTypes: true });
return entries.map(entry => ({
name: entry.name,
isDirectory: () => entry.isDirectory(),
isFile: () => entry.isFile()
}));
}
join(...paths: string[]): string {
return path.join(...paths);
}
extname(filePath: string): string {
return path.extname(filePath);
}
}
