84 lines
1.8 KiB
JavaScript
84 lines
1.8 KiB
JavaScript
/* global LIMITS DEFAULTS */
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import { blobStream, concatStream } from './streams';
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function isDupe(newFile, array) {
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for (const file of array) {
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if (
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newFile.name === file.name &&
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newFile.size === file.size &&
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newFile.lastModified === file.lastModified
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) {
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return true;
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}
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}
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return false;
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}
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export default class Archive {
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constructor(files = []) {
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this.files = Array.from(files);
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this.timeLimit = DEFAULTS.EXPIRE_SECONDS;
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this.dlimit = 1;
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this.password = null;
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}
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get name() {
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return this.files.length > 1 ? 'Send-Archive.zip' : this.files[0].name;
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}
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get type() {
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return this.files.length > 1 ? 'send-archive' : this.files[0].type;
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}
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get size() {
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return this.files.reduce((total, file) => total + file.size, 0);
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}
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get numFiles() {
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return this.files.length;
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}
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get manifest() {
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return {
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files: this.files.map(file => ({
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name: file.name,
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size: file.size,
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type: file.type
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}))
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};
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}
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get stream() {
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return concatStream(this.files.map(file => blobStream(file)));
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}
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addFiles(files, maxSize) {
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if (this.files.length + files.length > LIMITS.MAX_FILES_PER_ARCHIVE) {
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throw new Error('tooManyFiles');
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}
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const newFiles = files.filter(
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file => file.size > 0 && !isDupe(file, this.files)
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);
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const newSize = newFiles.reduce((total, file) => total + file.size, 0);
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if (this.size + newSize > maxSize) {
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throw new Error('fileTooBig');
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}
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this.files = this.files.concat(newFiles);
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return true;
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}
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remove(file) {
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const index = this.files.indexOf(file);
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if (index > -1) {
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this.files.splice(index, 1);
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}
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}
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clear() {
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this.files = [];
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this.dlimit = 1;
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this.timeLimit = DEFAULTS.EXPIRE_SECONDS;
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this.password = null;
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}
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}
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