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import { DataService } from './data.service';
import { Job } from '@core/model/job.interface';
import { BehaviorSubject, forkJoin, map, Observable, of, switchMap, tap } from 'rxjs';
import { Page } from '@core/model/page.interface';
import { CreateJobRequest } from '@core/model/create-job-request.interface';
import { UpdateJobFieldRequest, UpdateJobRequest } from '@core/model/update-job-request.interface';
import { CreateJobAttachmentsRequest } from '@core/model/create-job-attachments-request.interface';
import { CreateJobAttachmentRequest } from '@core/model/create-job-attachment-request.interface';
import { CreateJobActivitiesRequest } from '@core/model/create-job-activities-request.interface';
import { CreateJobActivityRequest } from '@core/model/create-job-activity-request.interface';
import { UpdateJobStatusRequest } from '@core/model/update-job-status-request.interface';
import { UpdateJobRatingRequest } from '@core/model/update-job-rating-request.interface';
import { JobMetadata } from '@core/model/job-metadata.interface';
import { SessionService } from './session.service';
import { ProtectedFile } from '../model/protected-file.interface';
import { JobsListOptions } from '../model/jobs-list-options';
@Injectable({
providedIn: 'root'
})
export class JobService {
private jobsSubject: BehaviorSubject<Page<Job> | null> = new BehaviorSubject<Page<Job> | null> (null);
private currentOptions: JobsListOptions = new JobsListOptions();
constructor(private dataService: DataService, private sessionService: SessionService) {
this.sessionService.$isLogged().subscribe(l => {
// reset subject when user logged in status changes
this.jobsSubject.next(null);
});
}
/**
* Retrieves the sorted jobs loaded from the backend
* trying to avoid unncessary data service requests
* @returns the jobs
*/
public getAllJobs(jobsListOptions: JobsListOptions): Observable<Page<Job>> {
return this.jobsSubject.pipe(
switchMap((jobsPage: Page<Job> | null) => {
if(jobsPage === null || jobsListOptions.getMustReload() || !this.currentOptions.equals(jobsListOptions)) {
// create a new instance to store current options, otherwise the current instance would be the same as the one in the service
this.currentOptions = jobsListOptions;
this.currentOptions.forceReload(null);
const status = this.currentOptions.getStatus();
const statusMeta = this.currentOptions.getStatusMeta();
let statusOrFilterParam = '';
if(status !== null) {
statusOrFilterParam += `status=${status}`;
}
else if (statusMeta !== null) {
statusOrFilterParam += `statusMeta=${statusMeta}`;
}
return this.dataService.get<Page<Job>>(`jobs?page=${this.currentOptions.getCurrentPage()}&itemsPerPage=${this.currentOptions.getItemsPerPage()}`+(statusOrFilterParam ? `&${statusOrFilterParam}` : '')+`&sort=${this.currentOptions.getSort()}`).pipe(
switchMap((fetchedJobs: Page<Job>) => {
this.jobsSubject.next(fetchedJobs);
return of(fetchedJobs);
})
)
}
return of(jobsPage);
})
);
}
/**
* Retrieves a job by its id
* @returns the job
*/
public getJobById(jobId: string): Observable<Job> {
return this.dataService.get<Job>(`jobs/${jobId}`);
}
/**
* Creates a job
* @returns the job
*/
public createJob(request: CreateJobRequest): Observable<Job> {
return this.dataService.post<Job>(`jobs`, request).pipe(
map((j: Job) => {
this.jobsSubject.next(null);
return j;
})
);
}
/**
* Retrieves a job by its id
* @returns the job
*/
public deleteJob(jobId: string): Observable<void> {
return this.dataService.delete<void>(`jobs/${jobId}`).pipe(
tap(() => {
this.reloadIfNecessary({id: jobId} as Job, true);
})
);
}
private reloadIfNecessary(j: Job, remove: boolean = false) :void {
const page: Page<Job> | null = this.jobsSubject.value;
let existingJobIndex = -1
if(page !== null) {
existingJobIndex = page.content.findIndex((job: Job) => j.id == job.id);
if(existingJobIndex !== -1) {
if(remove) {
page.content.splice(existingJobIndex, 1);
page.totalElementsCount--;
}
else {
page.content[existingJobIndex] = j;
}
}
}
if(existingJobIndex === -1) {
this.jobsSubject.next(null);
}
}
/**
* Updates a job status
* @returns the job
*/
public updateJobStatus(jobId: string, request: UpdateJobStatusRequest): Observable<Job> {
// using patch because only some fields are edited
return this.dataService.patch<Job>(`jobs/${jobId}`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
/**
* Updates a job status
* @returns the job
*/
public updateJobRating(jobId: string, request: UpdateJobRatingRequest): Observable<Job> {
// using patch because only some fields are edited
return this.dataService.patch<Job>(`jobs/${jobId}`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
/**
* Updates a job
* @returns the job
*/
public updateJob(jobId: string, request: UpdateJobRequest): Observable<Job> {
// using patch because only some fields are edited
return this.dataService.patch<Job>(`jobs/${jobId}`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
public updateJobField(jobId: string, request: UpdateJobFieldRequest): Observable<Job> {
// using patch because only some fields are edited
return this.dataService.patch<Job>(`jobs/${jobId}`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
public createAttachment(jobId: string, request: CreateJobAttachmentRequest): Observable<Job> {
return this.dataService.post<Job>(`jobs/${jobId}/attachments`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
public createAttachments(jobId: string, request: CreateJobAttachmentsRequest): Observable<Job> {
const attachmentRequests = request.attachments.map(attachment =>
this.createAttachment(jobId, attachment) // calls createAttachment for each attachment
);
return forkJoin(attachmentRequests).pipe(
map((jobs: Job[]) => jobs[jobs.length - 1]) // returns the last updated job
);
}
public deleteAttachment(jobId: string, attachmentId: string): Observable<void> {
return this.dataService.delete<void>(`jobs/${jobId}/attachments/${attachmentId}`);
}
public getProtectedFile(jobId: string, attachmentId: string): Observable<ProtectedFile> {
return this.dataService.get<ProtectedFile>(`jobs/${jobId}/attachments/${attachmentId}/file/info`);
}
public createActivity(jobId: string, request: CreateJobActivityRequest): Observable<Job> {
return this.dataService.post<Job>(`jobs/${jobId}/activities`, request).pipe(
map((j: Job) => {
this.reloadIfNecessary(j);
return j;
})
);
}
public createActivities(jobId: string, request: CreateJobActivitiesRequest): Observable<Job> {
const attachmentRequests = request.activities.map(activity =>
this.createActivity(jobId, activity) // calls createAttachment for each activity
);
return forkJoin(attachmentRequests).pipe(
map((jobs: Job[]) => jobs[jobs.length - 1]) // returns the last updated job
);
}
public getJobMetadata(url: string) :Observable<JobMetadata> {
return this.dataService.get<JobMetadata>(`jobs/metadata?url=${url}`)
}
} |