import { forkJoin, Subject, Subscription } from 'rxjs' import { LinkType } from 'src/types/link.type' import { Component, OnDestroy, OnInit } from '@angular/core' import { ActivatedRoute, Router } from '@angular/router' import { AuthService, HooksService, MetaService, Notifier, ServerService, User, UserService } from '@app/core' import { immutableAssign } from '@app/helpers' import { validateHost } from '@app/shared/form-validators/host-validators' import { Video, VideoChannel } from '@app/shared/shared-main' import { AdvancedSearch, SearchService } from '@app/shared/shared-search' import { MiniatureDisplayOptions } from '@app/shared/shared-video-miniature' import { VideoPlaylist } from '@app/shared/shared-video-playlist' import { HTMLServerConfig, SearchTargetType } from '@shared/models' @Component({ selector: 'my-search', styleUrls: [ './search.component.scss' ], templateUrl: './search.component.html' }) export class SearchComponent implements OnInit, OnDestroy { error: string results: (Video | VideoChannel | VideoPlaylist)[] = [] pagination = { currentPage: 1, totalItems: null as number } advancedSearch: AdvancedSearch = new AdvancedSearch() isSearchFilterCollapsed = true currentSearch: string videoDisplayOptions: MiniatureDisplayOptions = { date: true, views: true, by: true, avatar: false, privacyLabel: false, privacyText: false, state: false, blacklistInfo: false } errorMessage: string userMiniature: User onSearchDataSubject = new Subject() private subActivatedRoute: Subscription private isInitialLoad = false // set to false to show the search filters on first arrival private hasMoreResults = true private isSearching = false private lastSearchTarget: SearchTargetType private serverConfig: HTMLServerConfig constructor ( private route: ActivatedRoute, private router: Router, private metaService: MetaService, private notifier: Notifier, private searchService: SearchService, private authService: AuthService, private userService: UserService, private hooks: HooksService, private serverService: ServerService ) { } ngOnInit () { this.serverConfig = this.serverService.getHTMLConfig() this.subActivatedRoute = this.route.queryParams .subscribe({ next: queryParams => { const querySearch = queryParams['search'] const searchTarget = queryParams['searchTarget'] // Search updated, reset filters if (this.currentSearch !== querySearch || searchTarget !== this.advancedSearch.searchTarget) { this.resetPagination() this.advancedSearch.reset() this.currentSearch = querySearch || undefined this.updateTitle() } this.advancedSearch = new AdvancedSearch(queryParams) if (!this.advancedSearch.searchTarget) { this.advancedSearch.searchTarget = this.getDefaultSearchTarget() } this.error = this.checkFieldsAndGetError() // Don't hide filters if we have some of them AND the user just came on the webpage, or we have an error this.isSearchFilterCollapsed = !this.error && (this.isInitialLoad === false || !this.advancedSearch.containsValues()) this.isInitialLoad = false this.search() }, error: err => this.notifier.error(err.message) }) this.userService.getAnonymousOrLoggedUser() .subscribe(user => this.userMiniature = user) this.hooks.runAction('action:search.init', 'search') } ngOnDestroy () { if (this.subActivatedRoute) this.subActivatedRoute.unsubscribe() } isVideoChannel (d: VideoChannel | Video | VideoPlaylist): d is VideoChannel { return d instanceof VideoChannel } isVideo (v: VideoChannel | Video | VideoPlaylist): v is Video { return v instanceof Video } isPlaylist (v: VideoChannel | Video | VideoPlaylist): v is VideoPlaylist { return v instanceof VideoPlaylist } isUserLoggedIn () { return this.authService.isLoggedIn() } search () { this.error = this.checkFieldsAndGetError() if (this.error) return this.isSearching = true forkJoin([ this.getVideoChannelObs(), this.getVideoPlaylistObs(), this.getVideosObs() ]).subscribe({ next: results => { for (const result of results) { this.results = this.results.concat(result.data) } this.pagination.totalItems = results.reduce((p, r) => p += r.total, 0) this.lastSearchTarget = this.advancedSearch.searchTarget this.hasMoreResults = this.results.length < this.pagination.totalItems this.onSearchDataSubject.next(results) }, error: err => { if (this.advancedSearch.searchTarget !== 'search-index') { this.notifier.error(err.message) return } this.notifier.error( $localize`Search index is unavailable. Retrying with instance results instead.`, $localize`Search error` ) this.advancedSearch.searchTarget = 'local' this.search() }, complete: () => { this.isSearching = false } }) } onNearOfBottom () { // Last page if (!this.hasMoreResults || this.isSearching) return this.pagination.currentPage += 1 this.search() } onFiltered () { this.resetPagination() this.updateUrlFromAdvancedSearch() } numberOfFilters () { return this.advancedSearch.size() } // Add VideoChannel/VideoPlaylist for typings, but the template already checks "video" argument is a video removeVideoFromArray (video: Video | VideoChannel | VideoPlaylist) { this.results = this.results.filter(r => !this.isVideo(r) || r.id !== video.id) } getLinkType (): LinkType { if (this.advancedSearch.searchTarget === 'search-index') { const remoteUriConfig = this.serverConfig.search.remoteUri // Redirect on the external instance if not allowed to fetch remote data if ((!this.isUserLoggedIn() && !remoteUriConfig.anonymous) || !remoteUriConfig.users) { return 'external' } return 'lazy-load' } return 'internal' } isExternalChannelUrl () { return this.getLinkType() === 'external' } getExternalChannelUrl (channel: VideoChannel) { // Same algorithm than videos if (this.getLinkType() === 'external') { return channel.url } // lazy-load or internal return undefined } getInternalChannelUrl (channel: VideoChannel) { const linkType = this.getLinkType() if (linkType === 'internal') { return [ '/c', channel.nameWithHost ] } if (linkType === 'lazy-load') { return [ '/search/lazy-load-channel', { url: channel.url } ] } // external return undefined } hideActions () { return this.lastSearchTarget === 'search-index' } private resetPagination () { this.pagination.currentPage = 1 this.pagination.totalItems = null this.results = [] } private updateTitle () { const title = this.currentSearch ? $localize`Search ${this.currentSearch}` : $localize`Search` this.metaService.setTitle(title) } private updateUrlFromAdvancedSearch () { const search = this.currentSearch || undefined this.router.navigate([], { relativeTo: this.route, queryParams: Object.assign({}, this.advancedSearch.toUrlObject(), { search }) }) } private getVideosObs () { const params = { search: this.currentSearch, componentPagination: immutableAssign(this.pagination, { itemsPerPage: 10 }), advancedSearch: this.advancedSearch } return this.hooks.wrapObsFun( this.searchService.searchVideos.bind(this.searchService), params, 'search', 'filter:api.search.videos.list.params', 'filter:api.search.videos.list.result' ) } private getVideoChannelObs () { const params = { search: this.currentSearch, componentPagination: immutableAssign(this.pagination, { itemsPerPage: this.buildChannelsPerPage() }), advancedSearch: this.advancedSearch } return this.hooks.wrapObsFun( this.searchService.searchVideoChannels.bind(this.searchService), params, 'search', 'filter:api.search.video-channels.list.params', 'filter:api.search.video-channels.list.result' ) } private getVideoPlaylistObs () { const params = { search: this.currentSearch, componentPagination: immutableAssign(this.pagination, { itemsPerPage: this.buildPlaylistsPerPage() }), advancedSearch: this.advancedSearch } return this.hooks.wrapObsFun( this.searchService.searchVideoPlaylists.bind(this.searchService), params, 'search', 'filter:api.search.video-playlists.list.params', 'filter:api.search.video-playlists.list.result' ) } private getDefaultSearchTarget (): SearchTargetType { const searchIndexConfig = this.serverConfig.search.searchIndex if (searchIndexConfig.enabled && (searchIndexConfig.isDefaultSearch || searchIndexConfig.disableLocalSearch)) { return 'search-index' } return 'local' } private checkFieldsAndGetError () { if (this.advancedSearch.host && !validateHost(this.advancedSearch.host)) { return $localize`PeerTube instance host filter is invalid` } return undefined } private buildChannelsPerPage () { if (this.advancedSearch.resultType === 'channels') return 10 return 2 } private buildPlaylistsPerPage () { if (this.advancedSearch.resultType === 'playlists') return 10 return 2 } }