104 lines
3.3 KiB
JavaScript
104 lines
3.3 KiB
JavaScript
/* jslint node: true */
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'use strict';
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const FileEntry = require('./file_entry');
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const UserProps = require('./user_property');
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const Events = require('./events');
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// deps
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const _ = require('lodash');
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module.exports = class DownloadQueue {
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constructor(client) {
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this.client = client;
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if(!Array.isArray(this.client.user.downloadQueue)) {
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if(this.client.user.properties[UserProps.DownloadQueue]) {
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this.loadFromProperty(this.client.user.properties[UserProps.DownloadQueue]);
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} else {
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this.client.user.downloadQueue = [];
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}
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}
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}
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static get(client) {
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return new DownloadQueue(client);
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}
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get items() {
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return this.client.user.downloadQueue;
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}
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clear() {
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this.client.user.downloadQueue = [];
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}
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toggle(fileEntry, systemFile=false) {
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if(this.isQueued(fileEntry)) {
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this.client.user.downloadQueue = this.client.user.downloadQueue.filter(e => fileEntry.fileId !== e.fileId);
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} else {
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this.add(fileEntry, systemFile);
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}
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}
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add(fileEntry, systemFile=false) {
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this.client.user.downloadQueue.push({
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fileId : fileEntry.fileId,
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areaTag : fileEntry.areaTag,
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fileName : fileEntry.fileName,
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path : fileEntry.filePath,
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byteSize : fileEntry.meta.byte_size || 0,
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systemFile : systemFile,
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});
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}
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removeItems(fileIds) {
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if(!Array.isArray(fileIds)) {
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fileIds = [ fileIds ];
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}
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const [ remain, removed ] = _.partition(this.client.user.downloadQueue, e => ( -1 === fileIds.indexOf(e.fileId) ));
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this.client.user.downloadQueue = remain;
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return removed;
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}
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isQueued(entryOrId) {
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if(entryOrId instanceof FileEntry) {
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entryOrId = entryOrId.fileId;
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}
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return this.client.user.downloadQueue.find(e => entryOrId === e.fileId) ? true : false;
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}
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toProperty() { return JSON.stringify(this.client.user.downloadQueue); }
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loadFromProperty(prop) {
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try {
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this.client.user.downloadQueue = JSON.parse(prop);
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} catch(e) {
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this.client.user.downloadQueue = [];
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this.client.log.error( { error : e.message, property : prop }, 'Failed parsing download queue property');
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}
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}
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addTemporaryDownload(entry) {
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this.add(entry, true); // true=systemFile
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// clean up after ourselves when the session ends
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const thisUniqueId = this.client.session.uniqueId;
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Events.once(Events.getSystemEvents().ClientDisconnected, evt => {
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if(thisUniqueId === _.get(evt, 'client.session.uniqueId')) {
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FileEntry.removeEntry(entry, { removePhysFile : true }, err => {
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const Log = require('./logger').log;
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if(err) {
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Log.warn( { fileId : entry.fileId, path : entry.filePath }, 'Failed removing temporary session download' );
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} else {
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Log.debug( { fileId : entry.fileId, path : entry.filePath }, 'Removed temporary session download item' );
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}
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});
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}
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});
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}
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};
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