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import { Injectable } from '@angular/core';
import { HttpClient, HttpErrorResponse } from '@angular/common/http';
import { Observable, of, Subject } from 'rxjs';
import { catchError } from 'rxjs/operators';
import { MeTubeSocket } from './metube-socket';
export interface Status {
status: string;
msg?: string;
}
export interface Download {
id: string;
title: string;
url: string,
status: string;
msg: string;
filename: string;
folder: string;
quality: string;
percent: number;
speed: number;
eta: number;
checked?: boolean;
deleting?: boolean;
}
@Injectable({
providedIn: 'root'
})
export class DownloadsService {
loading = true;
queue = new Map<string, Download>();
done = new Map<string, Download>();
queueChanged = new Subject();
doneChanged = new Subject();
customDirsChanged = new Subject();
configuration = {};
customDirs = {};
constructor(private http: HttpClient, private socket: MeTubeSocket) {
socket.fromEvent('all').subscribe((strdata: string) => {
this.loading = false;
let data: [[[string, Download]], [[string, Download]]] = JSON.parse(strdata);
this.queue.clear();
data[0].forEach(entry => this.queue.set(...entry));
this.done.clear();
data[1].forEach(entry => this.done.set(...entry));
this.queueChanged.next(null);
this.doneChanged.next(null);
});
socket.fromEvent('added').subscribe((strdata: string) => {
let data: Download = JSON.parse(strdata);
this.queue.set(data.url, data);
this.queueChanged.next(null);
});
socket.fromEvent('updated').subscribe((strdata: string) => {
let data: Download = JSON.parse(strdata);
let dl: Download = this.queue.get(data.url);
data.checked = dl.checked;
data.deleting = dl.deleting;
this.queue.set(data.url, data);
});
socket.fromEvent('completed').subscribe((strdata: string) => {
let data: Download = JSON.parse(strdata);
this.queue.delete(data.url);
this.done.set(data.url, data);
this.queueChanged.next(null);
this.doneChanged.next(null);
});
socket.fromEvent('canceled').subscribe((strdata: string) => {
let data: string = JSON.parse(strdata);
this.queue.delete(data);
this.queueChanged.next(null);
});
socket.fromEvent('cleared').subscribe((strdata: string) => {
let data: string = JSON.parse(strdata);
this.done.delete(data);
this.doneChanged.next(null);
});
socket.fromEvent('configuration').subscribe((strdata: string) => {
let data = JSON.parse(strdata);
console.debug("got configuration:", data);
this.configuration = data;
});
socket.fromEvent('custom_dirs').subscribe((strdata: string) => {
let data = JSON.parse(strdata);
console.debug("got custom_dirs:", data);
this.customDirs = data;
this.customDirsChanged.next(data);
});
}
handleHTTPError(error: HttpErrorResponse) {
var msg = error.error instanceof ErrorEvent ? error.error.message : error.error;
return of({status: 'error', msg: msg})
}
public add(url: string, quality: string, format: string, folder: string) {
return this.http.post<Status>('add', {url: url, quality: quality, format: format, folder: folder}).pipe(
catchError(this.handleHTTPError)
);
}
public delById(where: string, ids: string[]) {
ids.forEach(id => this[where].get(id).deleting = true);
return this.http.post('delete', {where: where, ids: ids});
}
public delByFilter(where: string, filter: (dl: Download) => boolean) {
let ids: string[] = [];
this[where].forEach((dl: Download) => { if (filter(dl)) ids.push(dl.url) });
return this.delById(where, ids);
}
}
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