drop.chapril.org-firefoxsend/app/storage.js

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import { isFile } from './utils';
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import OwnedFile from './ownedFile';
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];
}
}
class Storage {
constructor() {
try {
this.engine = localStorage || new Mem();
} catch (e) {
this.engine = new Mem();
}
this._files = this.loadFiles();
}
loadFiles() {
const fs = [];
for (let i = 0; i < this.engine.length; i++) {
const k = this.engine.key(i);
if (isFile(k)) {
try {
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const f = new OwnedFile(JSON.parse(this.engine.getItem(k)));
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if (!f.id) {
f.id = f.fileId;
}
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fs.push(f);
} catch (err) {
// obviously you're not a golfer
this.engine.removeItem(k);
}
}
}
return fs.sort((a, b) => a.createdAt - b.createdAt);
}
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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);
}
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get enrolled() {
return JSON.parse(this.engine.getItem('experiments') || '[]');
}
enroll(id, variant) {
const enrolled = this.enrolled;
// eslint-disable-next-line no-unused-vars
if (!enrolled.find(([i, v]) => i === id)) {
enrolled.push([id, variant]);
this.engine.setItem('experiments', JSON.stringify(enrolled));
}
}
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get files() {
return this._files;
}
getFileById(id) {
return this._files.find(f => f.id === id);
}
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get(id) {
return this.engine.getItem(id);
}
remove(property) {
if (isFile(property)) {
this._files.splice(this._files.findIndex(f => f.id === property), 1);
}
this.engine.removeItem(property);
}
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addFile(file) {
this._files.push(file);
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this.writeFile(file);
}
writeFile(file) {
this.engine.setItem(file.id, JSON.stringify(file));
}
writeFiles() {
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this._files.forEach(f => this.writeFile(f));
}
}
export default new Storage();