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')
30 wrapObsFun <P, R, H1 extends ClientFilterHookName, H2 extends ClientFilterHookName>
31 (fun: ObservableFunction<P, R>, params: P, scope: PluginClientScope, hookParamName: H1, hookResultName: H2) {
32 return from(this.pluginService.ensurePluginsAreLoaded(scope))
34 mergeMap(() => this.wrapObjectWithoutScopeLoad(params, hookParamName)),
35 switchMap(params => fun(params)),
36 mergeMap(result => this.pluginService.runHook(hookResultName, result, params))
40 async wrapFun <P, R, H1 extends ClientFilterHookName, H2 extends ClientFilterHookName>
41 (fun: RawFunction<P, R>, params: P, scope: PluginClientScope, hookParamName: H1, hookResultName: H2) {
42 await this.pluginService.ensurePluginsAreLoaded(scope)
44 const newParams = await this.wrapObjectWithoutScopeLoad(params, hookParamName)
45 const result = fun(newParams)
47 return this.pluginService.runHook(hookResultName, result, params)
50 runAction<T, U extends ClientActionHookName> (hookName: U, scope: PluginClientScope, params?: T) {
51 this.pluginService.ensurePluginsAreLoaded(scope)
52 .then(() => this.pluginService.runHook(hookName, undefined, params))
53 .catch((err: any) => console.error('Fatal hook error.', { err }))
56 async wrapObject<T, U extends ClientFilterHookName> (result: T, scope: PluginClientScope, hookName: U) {
57 await this.pluginService.ensurePluginsAreLoaded(scope)
59 return this.wrapObjectWithoutScopeLoad(result, hookName)
62 private wrapObjectWithoutScopeLoad<T, U extends ClientFilterHookName> (result: T, hookName: U) {
63 return this.pluginService.runHook(hookName, result)