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file_base_web_download_manager.js
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file_base_web_download_manager.js
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/* jslint node: true */
'use strict';
// ENiGMA½
const MenuModule = require('./menu_module.js').MenuModule;
const ViewController = require('./view_controller.js').ViewController;
const DownloadQueue = require('./download_queue.js');
const theme = require('./theme.js');
const ansi = require('./ansi_term.js');
const Errors = require('./enig_error.js').Errors;
const FileAreaWeb = require('./file_area_web.js');
const ErrNotEnabled = require('./enig_error.js').ErrorReasons.NotEnabled;
const Config = require('./config.js').get;
// deps
const async = require('async');
const _ = require('lodash');
const moment = require('moment');
exports.moduleInfo = {
name: 'File Base Download Web Queue Manager',
desc: 'Module for interacting with web backed download queue/batch',
author: 'NuSkooler',
};
const FormIds = {
queueManager: 0,
};
const MciViewIds = {
queueManager: {
queue: 1,
navMenu: 2,
customRangeStart: 10,
},
};
exports.getModule = class FileBaseWebDownloadQueueManager extends MenuModule {
constructor(options) {
super(options);
this.dlQueue = new DownloadQueue(this.client);
this.menuMethods = {
removeItem: (formData, extraArgs, cb) => {
const selectedItem = this.dlQueue.items[formData.value.queueItem];
if (!selectedItem) {
return cb(null);
}
this.dlQueue.removeItems(selectedItem.fileId);
// :TODO: broken: does not redraw menu properly - needs fixed!
return this.removeItemsFromDownloadQueueView(
formData.value.queueItem,
cb
);
},
clearQueue: (formData, extraArgs, cb) => {
this.dlQueue.clear();
// :TODO: broken: does not redraw menu properly - needs fixed!
return this.removeItemsFromDownloadQueueView('all', cb);
},
getBatchLink: (formData, extraArgs, cb) => {
return this.generateAndDisplayBatchLink(cb);
},
};
}
initSequence() {
if (0 === this.dlQueue.items.length) {
return this.gotoMenu(
this.menuConfig.config.emptyQueueMenu ||
'fileBaseDownloadManagerEmptyQueue'
);
}
const self = this;
async.series(
[
function beforeArt(callback) {
return self.beforeArt(callback);
},
function display(callback) {
return self.displayQueueManagerPage(false, callback);
},
],
() => {
return self.finishedLoading();
}
);
}
removeItemsFromDownloadQueueView(itemIndex, cb) {
const queueView = this.viewControllers.queueManager.getView(
MciViewIds.queueManager.queue
);
if (!queueView) {
return cb(Errors.DoesNotExist('Queue view does not exist'));
}
if ('all' === itemIndex) {
queueView.setItems([]);
queueView.setFocusItems([]);
} else {
queueView.removeItem(itemIndex);
}
queueView.redraw();
return cb(null);
}
displayFileInfoForFileEntry(fileEntry) {
this.updateCustomViewTextsWithFilter(
'queueManager',
MciViewIds.queueManager.customRangeStart,
fileEntry,
{ filter: ['{webDlLink}', '{webDlExpire}', '{fileName}'] } // :TODO: Others....
);
}
updateDownloadQueueView(cb) {
const queueView = this.viewControllers.queueManager.getView(
MciViewIds.queueManager.queue
);
if (!queueView) {
return cb(Errors.DoesNotExist('Queue view does not exist'));
}
queueView.setItems(this.dlQueue.items);
queueView.on('index update', idx => {
const fileEntry = this.dlQueue.items[idx];
this.displayFileInfoForFileEntry(fileEntry);
});
queueView.redraw();
this.displayFileInfoForFileEntry(this.dlQueue.items[0]);
return cb(null);
}
generateAndDisplayBatchLink(cb) {
const expireTime = moment().add(Config().fileBase.web.expireMinutes, 'minutes');
FileAreaWeb.createAndServeTempBatchDownload(
this.client,
this.dlQueue.items,
{
expireTime: expireTime,
},
(err, webBatchDlLink) => {
// :TODO: handle not enabled -> display such
if (err) {
return cb(err);
}
const webDlExpireTimeFormat =
this.menuConfig.config.webDlExpireTimeFormat || 'YYYY-MMM-DD @ h:mm';
const formatObj = {
webBatchDlLink:
ansi.vtxHyperlink(this.client, webBatchDlLink) + webBatchDlLink,
webBatchDlExpire: expireTime.format(webDlExpireTimeFormat),
};
this.updateCustomViewTextsWithFilter(
'queueManager',
MciViewIds.queueManager.customRangeStart,
formatObj,
{ filter: Object.keys(formatObj).map(k => '{' + k + '}') }
);
return cb(null);
}
);
}
displayQueueManagerPage(clearScreen, cb) {
const self = this;
async.series(
[
function prepArtAndViewController(callback) {
return self.displayArtAndPrepViewController(
'queueManager',
FormIds.queueManager,
{ clearScreen: clearScreen },
callback
);
},
function prepareQueueDownloadLinks(callback) {
const webDlExpireTimeFormat =
self.menuConfig.config.webDlExpireTimeFormat ||
'YYYY-MMM-DD @ h:mm';
const config = Config();
async.each(
self.dlQueue.items,
(fileEntry, nextFileEntry) => {
FileAreaWeb.getExistingTempDownloadServeItem(
self.client,
fileEntry,
(err, serveItem) => {
if (err) {
if (ErrNotEnabled === err.reasonCode) {
return nextFileEntry(err); // we should have caught this prior
}
const expireTime = moment().add(
config.fileBase.web.expireMinutes,
'minutes'
);
FileAreaWeb.createAndServeTempDownload(
self.client,
fileEntry,
{ expireTime: expireTime },
(err, url) => {
if (err) {
return nextFileEntry(err);
}
fileEntry.webDlLinkRaw = url;
fileEntry.webDlLink =
ansi.vtxHyperlink(self.client, url) +
url;
fileEntry.webDlExpire =
expireTime.format(
webDlExpireTimeFormat
);
return nextFileEntry(null);
}
);
} else {
fileEntry.webDlLinkRaw = serveItem.url;
fileEntry.webDlLink =
ansi.vtxHyperlink(
self.client,
serveItem.url
) + serveItem.url;
fileEntry.webDlExpire = moment(
serveItem.expireTimestamp
).format(webDlExpireTimeFormat);
return nextFileEntry(null);
}
}
);
},
err => {
return callback(err);
}
);
},
function populateViews(callback) {
return self.updateDownloadQueueView(callback);
},
],
err => {
if (cb) {
return cb(err);
}
}
);
}
};