send/frontend/src/storage.js
2017-08-10 10:03:22 -07:00

99 lines
1.9 KiB
JavaScript

import { isFile } from './utils';
class Mem {
constructor() {
this.items = new Map();
}
get length() {
return this.items.size;
}
getItem(key) {
return this.items.get(key);
}
setItem(key, value) {
return this.items.set(key, value);
}
removeItem(key) {
return this.items.delete(key);
}
key(i) {
return this.items.keys()[i];
}
}
export default class Storage {
constructor() {
try {
this.engine = localStorage || new Mem();
} catch (e) {
this.engine = new Mem();
}
}
get totalDownloads() {
return Number(this.engine.getItem('totalDownloads'));
}
set totalDownloads(n) {
this.engine.setItem('totalDownloads', n);
}
get totalUploads() {
return Number(this.engine.getItem('totalUploads'));
}
set totalUploads(n) {
this.engine.setItem('totalUploads', n);
}
get referrer() {
return this.engine.getItem('referrer');
}
set referrer(str) {
this.engine.setItem('referrer', str);
}
get files() {
const fs = [];
for (let i = 0; i < this.engine.length; i++) {
const k = this.engine.key(i);
if (isFile(k)) {
try {
fs.push(JSON.parse(this.engine.getItem(k)));
} catch (err) {
// obviously you're not a golfer
this.engine.removeItem(k);
}
}
}
return fs.sort((file1, file2) => {
const creationDate1 = new Date(file1.creationDate);
const creationDate2 = new Date(file2.creationDate);
return creationDate1 - creationDate2;
});
}
get numFiles() {
let length = 0;
for (let i = 0; i < this.engine.length; i++) {
const k = this.engine.key(i);
if (isFile(k)) {
length += 1;
}
}
return length;
}
getFileById(id) {
return this.engine.getItem(id);
}
remove(property) {
this.engine.removeItem(property);
}
addFile(id, file) {
this.engine.setItem(id, JSON.stringify(file));
}
}