smartbucket/ts/smartbucket.classes.directory.ts

247 lines
6.9 KiB
TypeScript

import * as plugins from './smartbucket.plugins.js';
import { Bucket } from './smartbucket.classes.bucket.js';
import { File } from './smartbucket.classes.file.js';
export class Directory {
public bucketRef: Bucket;
public parentDirectoryRef: Directory;
public name: string;
public tree: string[];
public files: string[];
public folders: string[];
constructor(bucketRefArg: Bucket, parentDiretory: Directory, name: string) {
this.bucketRef = bucketRefArg;
this.parentDirectoryRef = parentDiretory;
this.name = name;
}
/**
* returns an array of parent directories
*/
public getParentDirectories(): Directory[] {
let parentDirectories: Directory[] = [];
if (this.parentDirectoryRef) {
parentDirectories.push(this.parentDirectoryRef);
parentDirectories = parentDirectories.concat(this.parentDirectoryRef.getParentDirectories());
}
return parentDirectories;
}
/**
* returns the directory level
*/
public getDirectoryLevel(): number {
return this.getParentDirectories().length;
}
/**
* updates the base path
*/
public getBasePath(): string {
const parentDirectories = this.getParentDirectories();
let basePath = '';
for (const parentDir of parentDirectories) {
if (!parentDir.name && !basePath) {
basePath = this.name + '/';
continue;
}
if (parentDir.name && !basePath) {
basePath = parentDir.name + '/' + this.name + '/';
continue;
}
if (parentDir.name && basePath) {
basePath = parentDir.name + '/' + basePath;
continue;
}
}
return basePath;
}
/**
* lists all files
*/
public async listFiles(): Promise<File[]> {
const done = plugins.smartpromise.defer();
const fileNameStream = await this.bucketRef.smartbucketRef.minioClient.listObjectsV2(
this.bucketRef.name,
this.getBasePath(),
false
);
const fileArray: File[] = [];
const duplexStream = new plugins.smartstream.SmartDuplex<plugins.minio.BucketItem, void>({
writeFunction: async (bucketItem) => {
if (bucketItem.prefix) {
return;
}
if (!bucketItem.name) {
return;
}
let subtractedPath = bucketItem.name.replace(this.getBasePath(), '');
if (subtractedPath.startsWith('/')) {
subtractedPath = subtractedPath.substr(1);
}
if (!subtractedPath.includes('/')) {
fileArray.push(
new File({
directoryRefArg: this,
fileName: subtractedPath,
})
);
}
},
finalFunction: async (tools) => {
done.resolve();
}
});
fileNameStream.pipe(duplexStream);
await done.promise;
return fileArray;
}
/**
* lists all folders
*/
public async listDirectories(): Promise<Directory[]> {
const done = plugins.smartpromise.defer();
const basePath = this.getBasePath();
const completeDirStream = await this.bucketRef.smartbucketRef.minioClient.listObjectsV2(
this.bucketRef.name,
this.getBasePath(),
false
);
const directoryArray: Directory[] = [];
const duplexStream = new plugins.smartstream.SmartDuplex<plugins.minio.BucketItem, void>({
writeFunction: async (bucketItem) => {
if (bucketItem.name) {
return;
}
let subtractedPath = bucketItem.prefix.replace(this.getBasePath(), '');
if (subtractedPath.startsWith('/')) {
subtractedPath = subtractedPath.substr(1);
}
if (subtractedPath.includes('/')) {
const dirName = subtractedPath.split('/')[0];
if (directoryArray.find((directory) => directory.name === dirName)) {
return;
}
directoryArray.push(new Directory(this.bucketRef, this, dirName));
}
},
finalFunction: async (tools) => {
done.resolve();
}
});
completeDirStream.pipe(duplexStream);
await done.promise;
return directoryArray;
}
/**
* gets an array that has all objects with a certain prefix;
*/
public async getTreeArray() {
const treeArray = await this.bucketRef.smartbucketRef.minioClient.listObjectsV2(
this.bucketRef.name,
this.getBasePath(),
true
);
}
/**
* gets a sub directory
*/
public async getSubDirectoryByName(dirNameArg: string): Promise<Directory> {
const dirNameArray = dirNameArg.split('/');
const getDirectory = async (directoryArg: Directory, dirNameToSearch: string) => {
const directories = await directoryArg.listDirectories();
return directories.find((directory) => {
return directory.name === dirNameToSearch;
});
};
let wantedDirectory: Directory;
for (const dirNameToSearch of dirNameArray) {
const directoryToSearchIn = wantedDirectory ? wantedDirectory : this;
wantedDirectory = await getDirectory(directoryToSearchIn, dirNameToSearch);
}
return wantedDirectory;
}
/**
* moves the directory
*/
public async move() {
// TODO
throw new Error('moving a directory is not yet implemented');
}
/**
* creates a file within this directory
* @param relativePathArg
*/
public async createEmptyFile(relativePathArg: string) {
const emtpyFile = await File.create({
directory: this,
name: relativePathArg,
contents: '',
});
}
// file operations
public async fastPut(optionsArg: { path: string; contents: string | Buffer }) {
const path = plugins.path.join(this.getBasePath(), optionsArg.path);
await this.bucketRef.fastPut({
path,
contents: optionsArg.contents,
});
}
public async fastGet(optionsArg: { path: string }) {
const path = plugins.path.join(this.getBasePath(), optionsArg.path);
const result = await this.bucketRef.fastGet({
path,
});
return result;
}
public async fastGetStream(pathArg: string): Promise<plugins.smartrx.rxjs.ReplaySubject<Buffer>> {
const path = plugins.path.join(this.getBasePath(), pathArg);
const result = await this.bucketRef.fastGetStream({
path,
});
return result;
}
public async fastRemove(optionsArg: { path: string }) {
const path = plugins.path.join(this.getBasePath(), optionsArg.path);
await this.bucketRef.fastRemove({
path,
});
}
/**
* deletes the directory with all its contents
*/
public async delete() {
const deleteDirectory = async (directoryArg: Directory) => {
const childDirectories = await directoryArg.listDirectories();
if (childDirectories.length === 0) {
console.log('directory empty! Path complete!');
} else {
for (const childDir of childDirectories) {
await deleteDirectory(childDir);
}
}
const files = await directoryArg.listFiles();
for (const file of files) {
await directoryArg.fastRemove({
path: file.name,
});
}
};
await deleteDirectory(this);
}
}