1 import { from, Observable } from 'rxjs'
2 import { mergeMap, switchMap } from 'rxjs/operators'
3 import { Injectable } from '@angular/core'
4 import { PluginService } from '@app/core/plugins/plugin.service'
5 import { ClientActionHookName, ClientFilterHookName, PluginClientScope } from '@shared/models'
6 import { AuthService, AuthStatus } from '../auth'
8 type RawFunction<U, T> = (params: U) => T
9 type ObservableFunction<U, T> = RawFunction<U, Observable<T>>
12 export class HooksService {
14 private authService: AuthService,
15 private pluginService: PluginService
18 this.authService.userInformationLoaded
19 .subscribe(() => this.runAction('action:auth-user.information-loaded', 'common', { user: this.authService.getUser() }))
21 this.authService.loginChangedSource.subscribe(obj => {
22 if (obj === AuthStatus.LoggedIn) {
23 this.runAction('action:auth-user.logged-in', 'common')
24 } else if (obj === AuthStatus.LoggedOut) {
25 this.runAction('action:auth-user.logged-out', 'common')
31 <P, R, H1 extends ClientFilterHookName, H2 extends ClientFilterHookName>
32 (fun: ObservableFunction<P, R>, params: P, scope: PluginClientScope, hookParamName: H1, hookResultName: H2) {
33 return from(this.pluginService.ensurePluginsAreLoaded(scope))
35 mergeMap(() => this.wrapObjectWithoutScopeLoad(params, hookParamName)),
36 switchMap(params => fun(params)),
37 mergeMap(result => this.pluginService.runHook(hookResultName, result, params))
42 <P, R, H1 extends ClientFilterHookName, H2 extends ClientFilterHookName>
43 (fun: RawFunction<P, R>, params: P, scope: PluginClientScope, hookParamName: H1, hookResultName: H2) {
44 await this.pluginService.ensurePluginsAreLoaded(scope)
46 const newParams = await this.wrapObjectWithoutScopeLoad(params, hookParamName)
47 const result = fun(newParams)
49 return this.pluginService.runHook(hookResultName, result, params)
52 runAction<T, U extends ClientActionHookName> (hookName: U, scope: PluginClientScope, params?: T) {
53 this.pluginService.ensurePluginsAreLoaded(scope)
54 .then(() => this.pluginService.runHook(hookName, undefined, params))
55 .catch((err: any) => console.error('Fatal hook error.', { err }))
58 async wrapObject<T, U extends ClientFilterHookName> (result: T, scope: PluginClientScope, hookName: U) {
59 await this.pluginService.ensurePluginsAreLoaded(scope)
61 return this.wrapObjectWithoutScopeLoad(result, hookName)
64 private wrapObjectWithoutScopeLoad<T, U extends ClientFilterHookName> (result: T, hookName: U) {
65 return this.pluginService.runHook(hookName, result)