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1 | import { of } from 'rxjs' | |
2 | import { first, tap } from 'rxjs/operators' | |
3 | import { ListKeyManager } from '@angular/cdk/a11y' | |
4 | import { AfterViewChecked, Component, OnDestroy, OnInit, QueryList, ViewChildren } from '@angular/core' | |
5 | import { ActivatedRoute, Params, Router } from '@angular/router' | |
6 | import { AuthService, ServerService } from '@app/core' | |
7 | import { logger } from '@root-helpers/logger' | |
8 | import { HTMLServerConfig, SearchTargetType } from '@shared/models' | |
9 | import { SuggestionComponent, SuggestionPayload, SuggestionPayloadType } from './suggestion.component' | |
10 | ||
11 | @Component({ | |
12 | selector: 'my-search-typeahead', | |
13 | templateUrl: './search-typeahead.component.html', | |
14 | styleUrls: [ './search-typeahead.component.scss' ] | |
15 | }) | |
16 | export class SearchTypeaheadComponent implements OnInit, AfterViewChecked, OnDestroy { | |
17 | @ViewChildren(SuggestionComponent) suggestionItems: QueryList<SuggestionComponent> | |
18 | ||
19 | hasChannel = false | |
20 | inChannel = false | |
21 | areSuggestionsOpened = true | |
22 | ||
23 | search = '' | |
24 | serverConfig: HTMLServerConfig | |
25 | ||
26 | inThisChannelText: string | |
27 | ||
28 | keyboardEventsManager: ListKeyManager<SuggestionComponent> | |
29 | results: SuggestionPayload[] = [] | |
30 | ||
31 | activeSearch: SuggestionPayloadType | |
32 | ||
33 | private scheduleKeyboardEventsInit = false | |
34 | ||
35 | constructor ( | |
36 | private authService: AuthService, | |
37 | private router: Router, | |
38 | private route: ActivatedRoute, | |
39 | private serverService: ServerService | |
40 | ) {} | |
41 | ||
42 | ngOnInit () { | |
43 | this.route.queryParams | |
44 | .pipe(first(params => this.isOnSearch() && params.search !== undefined && params.search !== null)) | |
45 | .subscribe(params => this.search = params.search) | |
46 | ||
47 | this.serverConfig = this.serverService.getHTMLConfig() | |
48 | this.computeTypeahead() | |
49 | ||
50 | this.serverService.configReloaded | |
51 | .subscribe(config => { | |
52 | this.serverConfig = config | |
53 | this.computeTypeahead() | |
54 | }) | |
55 | } | |
56 | ||
57 | ngAfterViewChecked () { | |
58 | if (this.scheduleKeyboardEventsInit && !this.keyboardEventsManager) { | |
59 | // Avoid ExpressionChangedAfterItHasBeenCheckedError errors | |
60 | setTimeout(() => this.initKeyboardEventsManager(), 0) | |
61 | } | |
62 | } | |
63 | ||
64 | ngOnDestroy () { | |
65 | if (this.keyboardEventsManager) this.keyboardEventsManager.change.unsubscribe() | |
66 | } | |
67 | ||
68 | areInstructionsDisplayed () { | |
69 | return !this.search | |
70 | } | |
71 | ||
72 | showSearchGlobalHelp () { | |
73 | return this.search && this.areSuggestionsOpened && this.keyboardEventsManager?.activeItem?.result?.type === 'search-index' | |
74 | } | |
75 | ||
76 | canSearchAnyURI () { | |
77 | if (!this.serverConfig) return false | |
78 | ||
79 | return this.authService.isLoggedIn() | |
80 | ? this.serverConfig.search.remoteUri.users | |
81 | : this.serverConfig.search.remoteUri.anonymous | |
82 | } | |
83 | ||
84 | onSearchChange () { | |
85 | this.computeTypeahead() | |
86 | } | |
87 | ||
88 | initKeyboardEventsManager () { | |
89 | if (this.keyboardEventsManager) return | |
90 | ||
91 | this.keyboardEventsManager = new ListKeyManager(this.suggestionItems) | |
92 | ||
93 | const activeIndex = this.suggestionItems.toArray().findIndex(i => i.result.default === true) | |
94 | if (activeIndex === -1) { | |
95 | logger.error('Cannot find active index.', { suggestionItems: this.suggestionItems }) | |
96 | } | |
97 | ||
98 | this.updateItemsState(activeIndex) | |
99 | ||
100 | this.keyboardEventsManager.change.subscribe( | |
101 | _ => this.updateItemsState() | |
102 | ) | |
103 | } | |
104 | ||
105 | computeTypeahead () { | |
106 | const searchIndexConfig = this.serverConfig.search.searchIndex | |
107 | ||
108 | if (!this.activeSearch) { | |
109 | if (searchIndexConfig.enabled && (searchIndexConfig.isDefaultSearch || searchIndexConfig.disableLocalSearch)) { | |
110 | this.activeSearch = 'search-index' | |
111 | } else { | |
112 | this.activeSearch = 'search-instance' | |
113 | } | |
114 | } | |
115 | ||
116 | this.areSuggestionsOpened = true | |
117 | this.results = [] | |
118 | ||
119 | if (!this.search) return | |
120 | ||
121 | if (searchIndexConfig.enabled === false || searchIndexConfig.disableLocalSearch !== true) { | |
122 | this.results.push({ | |
123 | text: this.search, | |
124 | type: 'search-instance', | |
125 | default: this.activeSearch === 'search-instance' | |
126 | }) | |
127 | } | |
128 | ||
129 | if (searchIndexConfig.enabled) { | |
130 | this.results.push({ | |
131 | text: this.search, | |
132 | type: 'search-index', | |
133 | default: this.activeSearch === 'search-index' | |
134 | }) | |
135 | } | |
136 | ||
137 | this.scheduleKeyboardEventsInit = true | |
138 | } | |
139 | ||
140 | updateItemsState (index?: number) { | |
141 | if (index !== undefined) { | |
142 | this.keyboardEventsManager.setActiveItem(index) | |
143 | } | |
144 | ||
145 | for (const item of this.suggestionItems) { | |
146 | if (this.keyboardEventsManager.activeItem && this.keyboardEventsManager.activeItem === item) { | |
147 | item.active = true | |
148 | this.activeSearch = item.result.type | |
149 | continue | |
150 | } | |
151 | ||
152 | item.active = false | |
153 | } | |
154 | } | |
155 | ||
156 | onSuggestionClicked (payload: SuggestionPayload) { | |
157 | this.doSearch(this.buildSearchTarget(payload)) | |
158 | } | |
159 | ||
160 | onSuggestionHover (index: number) { | |
161 | this.updateItemsState(index) | |
162 | } | |
163 | ||
164 | handleKey (event: KeyboardEvent) { | |
165 | if (!this.keyboardEventsManager) return | |
166 | ||
167 | switch (event.key) { | |
168 | case 'ArrowDown': | |
169 | case 'ArrowUp': | |
170 | event.stopPropagation() | |
171 | ||
172 | this.keyboardEventsManager.onKeydown(event) | |
173 | break | |
174 | ||
175 | case 'Enter': | |
176 | event.stopPropagation() | |
177 | this.doSearch() | |
178 | break | |
179 | } | |
180 | } | |
181 | ||
182 | isOnSearch () { | |
183 | return window.location.pathname === '/search' | |
184 | } | |
185 | ||
186 | doSearch (searchTarget?: SearchTargetType) { | |
187 | this.areSuggestionsOpened = false | |
188 | const queryParams: Params = {} | |
189 | ||
190 | if (this.isOnSearch() && this.route.snapshot.queryParams) { | |
191 | Object.assign(queryParams, this.route.snapshot.queryParams) | |
192 | } | |
193 | ||
194 | if (!searchTarget) { | |
195 | searchTarget = this.buildSearchTarget(this.keyboardEventsManager.activeItem.result) | |
196 | } | |
197 | ||
198 | Object.assign(queryParams, { search: this.search, searchTarget }) | |
199 | ||
200 | const o = this.authService.isLoggedIn() | |
201 | ? this.loadUserLanguagesIfNeeded(queryParams) | |
202 | : of(true) | |
203 | ||
204 | o.subscribe(() => this.router.navigate([ '/search' ], { queryParams })) | |
205 | } | |
206 | ||
207 | private loadUserLanguagesIfNeeded (queryParams: any) { | |
208 | if (queryParams?.languageOneOf) return of(queryParams) | |
209 | ||
210 | return this.authService.userInformationLoaded | |
211 | .pipe( | |
212 | first(), | |
213 | tap(() => Object.assign(queryParams, { languageOneOf: this.authService.getUser().videoLanguages })) | |
214 | ) | |
215 | } | |
216 | ||
217 | private buildSearchTarget (result: SuggestionPayload): SearchTargetType { | |
218 | if (result.type === 'search-index') { | |
219 | return 'search-index' | |
220 | } | |
221 | ||
222 | return 'local' | |
223 | } | |
224 | } |