import * as fse from 'fs-extra'
import * as Path from 'path'
import { IBasicFileSystemHost, Root, IFileEntryItem, WatchTerminator, FileType } from 'aspen-core'

const host: IBasicFileSystemHost = {
    pathStyle: 'unix', // or 'win32'
    getItems: async (path: string): Promise<IFileEntryItem[]> => Promise.all(
        (await fse.readdir(path))
            .map(async (filename) => {
                const stat = await fse.stat(Path.join(path, filename))
                return {
                    name: filename,
                    type: stat.isDirectory() ? FileType.Directory : FileType.File
                }
            })),

    /**
     * [optional] sort function
     */
    // sortComparator: (a: FileOrDir, b: FileOrDir): number => { by default Directories come before FileEntries }

    /**
     * [optional] use this to know when a Directory is interested in file watching
     * Note that this is used just to let you "know", `Root` can receive events through `Root#inotify` regardless of this method's presence
     */
    // watch: (path: string): WatchTerminator => { return a function that will be called when a Directory is no longer interested in watching changes }
}

const root: Root = new Root(host, '/absolute/path/that/will/act/as/root')

// refer to the full API on what is possible next