91 lines
2.4 KiB
TypeScript
91 lines
2.4 KiB
TypeScript
// Copyright 2023 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { random, range, sample, sortBy } from 'lodash';
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import type { MIMEType } from '../../../../types/MIME';
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import type { MediaItemType } from '../../../../types/MediaItem';
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const DAY_MS = 24 * 60 * 60 * 1000;
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export const days = (n: number): number => n * DAY_MS;
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const tokens = ['foo', 'bar', 'baz', 'qux', 'quux'];
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const contentTypes = {
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gif: 'image/gif',
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jpg: 'image/jpeg',
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png: 'image/png',
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mp4: 'video/mp4',
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docx: 'application/text',
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pdf: 'application/pdf',
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txt: 'application/text',
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} as unknown as Record<string, MIMEType>;
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function createRandomFile(
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startTime: number,
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timeWindow: number,
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fileExtension: string
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): MediaItemType {
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const contentType = contentTypes[fileExtension];
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const fileName = `${sample(tokens)}${sample(tokens)}.${fileExtension}`;
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return {
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contentType,
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message: {
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conversationId: '123',
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id: random(Date.now()).toString(),
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received_at: Math.floor(Math.random() * 10),
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received_at_ms: random(startTime, startTime + timeWindow),
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attachments: [],
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sent_at: Date.now(),
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},
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attachment: {
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url: '',
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fileName,
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size: random(1000, 1000 * 1000 * 50),
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contentType,
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},
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index: 0,
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thumbnailObjectUrl: `https://placekitten.com/${random(50, 150)}/${random(
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50,
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150
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)}`,
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};
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}
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function createRandomFiles(
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startTime: number,
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timeWindow: number,
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fileExtensions: Array<string>
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): Array<MediaItemType> {
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return range(random(5, 10)).map(() =>
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createRandomFile(startTime, timeWindow, sample(fileExtensions) as string)
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);
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}
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export function createRandomDocuments(
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startTime: number,
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timeWindow: number
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): Array<MediaItemType> {
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return createRandomFiles(startTime, timeWindow, ['docx', 'pdf', 'txt']);
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}
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export function createRandomMedia(
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startTime: number,
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timeWindow: number
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): Array<MediaItemType> {
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return createRandomFiles(startTime, timeWindow, ['mp4', 'jpg', 'png', 'gif']);
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}
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export function createPreparedMediaItems(
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fn: typeof createRandomDocuments | typeof createRandomMedia
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): Array<MediaItemType> {
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const now = Date.now();
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return sortBy(
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[
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...fn(now, days(1)),
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...fn(now - days(1), days(1)),
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...fn(now - days(3), days(3)),
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...fn(now - days(30), days(15)),
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...fn(now - days(365), days(300)),
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],
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(item: MediaItemType) => -item.message.received_at
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);
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}
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