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