import { Injectable, inject } from '@angular/core';
import { HttpClient, HttpParams } from '@angular/common/http';
import { Observable, firstValueFrom } from 'rxjs';
import { API_URL } from '../tokens/index';


@Injectable({
  providedIn: 'root'
})
export class HistoryService {
  protected url: string;

  constructor(private http: HttpClient) {
    const api_url = inject(API_URL);
    this.url = `${api_url}/history`;
  }

  public getHistory(options?: Options): Observable<any> {
    let params = new HttpParams();
    if (options) {
      if (options.envelopeId)
        params = params.set('envelopeId', options.envelopeId);
      if (options.referenceType != null)
        params = params.set('referenceType', options.referenceType);
      if (options.userReference)
        params = params.set('userReference', options.userReference);
      if (options.withReceiver)
        params = params.set('withReceiver', options.withReceiver);
      if (options.withSender)
        params = params.set('withSender', options.withSender);
    }
    return this.http.get(this.url, { params });
  }

  public async getHistoryAsync(options?: Options): Promise<any> {
    return firstValueFrom(this.getHistory(options));
  }
}

class Options {
  envelopeId?: number;
  userReference?: string;
  referenceType: number | null = null;
  withSender?: boolean;
  withReceiver?: boolean;
}