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- import * as express from 'express'
- import { buildNSFWFilter } from '../../helpers/express-utils'
- import { VideoModel } from '../../models/video/video'
- import { asyncMiddleware } from '../../middlewares'
- import { TagModel } from '../../models/video/tag'
- import { VideosOverview } from '../../../shared/models/overviews'
- import { MEMOIZE_TTL, OVERVIEWS, ROUTE_CACHE_LIFETIME } from '../../initializers/constants'
- import { cacheRoute } from '../../middlewares/cache'
- import * as memoizee from 'memoizee'
- const overviewsRouter = express.Router()
- overviewsRouter.get('/videos',
- asyncMiddleware(cacheRoute(ROUTE_CACHE_LIFETIME.OVERVIEWS.VIDEOS)),
- asyncMiddleware(getVideosOverview)
- )
- // ---------------------------------------------------------------------------
- export { overviewsRouter }
- // ---------------------------------------------------------------------------
- const buildSamples = memoizee(async function () {
- const [ categories, channels, tags ] = await Promise.all([
- VideoModel.getRandomFieldSamples('category', OVERVIEWS.VIDEOS.SAMPLE_THRESHOLD, OVERVIEWS.VIDEOS.SAMPLES_COUNT),
- VideoModel.getRandomFieldSamples('channelId', OVERVIEWS.VIDEOS.SAMPLE_THRESHOLD ,OVERVIEWS.VIDEOS.SAMPLES_COUNT),
- TagModel.getRandomSamples(OVERVIEWS.VIDEOS.SAMPLE_THRESHOLD, OVERVIEWS.VIDEOS.SAMPLES_COUNT)
- ])
- return { categories, channels, tags }
- }, { maxAge: MEMOIZE_TTL.OVERVIEWS_SAMPLE })
- // This endpoint could be quite long, but we cache it
- async function getVideosOverview (req: express.Request, res: express.Response) {
- const attributes = await buildSamples()
- const [ categories, channels, tags ] = await Promise.all([
- Promise.all(attributes.categories.map(c => getVideosByCategory(c, res))),
- Promise.all(attributes.channels.map(c => getVideosByChannel(c, res))),
- Promise.all(attributes.tags.map(t => getVideosByTag(t, res)))
- ])
- const result: VideosOverview = {
- categories,
- channels,
- tags
- }
- // Cleanup our object
- for (const key of Object.keys(result)) {
- result[key] = result[key].filter(v => v !== undefined)
- }
- return res.json(result)
- }
- async function getVideosByTag (tag: string, res: express.Response) {
- const videos = await getVideos(res, { tagsOneOf: [ tag ] })
- if (videos.length === 0) return undefined
- return {
- tag,
- videos
- }
- }
- async function getVideosByCategory (category: number, res: express.Response) {
- const videos = await getVideos(res, { categoryOneOf: [ category ] })
- if (videos.length === 0) return undefined
- return {
- category: videos[0].category,
- videos
- }
- }
- async function getVideosByChannel (channelId: number, res: express.Response) {
- const videos = await getVideos(res, { videoChannelId: channelId })
- if (videos.length === 0) return undefined
- return {
- channel: videos[0].channel,
- videos
- }
- }
- async function getVideos (
- res: express.Response,
- where: { videoChannelId?: number, tagsOneOf?: string[], categoryOneOf?: number[] }
- ) {
- const query = Object.assign({
- start: 0,
- count: 12,
- sort: '-createdAt',
- includeLocalVideos: true,
- nsfw: buildNSFWFilter(res),
- withFiles: false
- }, where)
- const { data } = await VideoModel.listForApi(query, false)
- return data.map(d => d.toFormattedJSON())
- }
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