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import { Injectable } from '@angular/core';
import { CephfsService } from './cephfs.service';
import { BehaviorSubject, Observable, Subject, timer } from 'rxjs';
import { CephfsDir } from '../models/cephfs-directory-models';
import { filter, map, retry, share, switchMap, takeUntil, tap } from 'rxjs/operators';
type DirectoryStore = Record<number, CephfsDir[]>;
const POLLING_INTERVAL = 600 * 1000;
@Injectable({
providedIn: 'root'
})
export class DirectoryStoreService {
private _directoryStoreSubject = new BehaviorSubject<DirectoryStore>({});
readonly directoryStore$: Observable<DirectoryStore> = this._directoryStoreSubject.asObservable();
stopDirectoryPolling = new Subject();
isLoading = true;
constructor(private cephFsService: CephfsService) {}
loadDirectories(id: number, path = '/', depth = 3) {
this.directoryStore$
.pipe(
filter((store: DirectoryStore) => !Boolean(store[id])),
switchMap(() =>
timer(0, POLLING_INTERVAL).pipe(
switchMap(() =>
this.cephFsService.lsDir(id, path, depth).pipe(
tap((response) => {
this.isLoading = false;
this._directoryStoreSubject.next({ [id]: response });
})
)
),
retry(),
share(),
takeUntil(this.stopDirectoryPolling)
)
)
)
.subscribe();
}
search(term: string, id: number, limit = 5) {
return this.directoryStore$.pipe(
map((store: DirectoryStore) => {
const regEx = new RegExp(term, 'gi');
const results = store[id]
.filter((x) => regEx.test(x.path))
.map((x) => x.path)
.slice(0, limit);
return results;
})
);
}
stopPollingDictories() {
this.stopDirectoryPolling.next();
}
}
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