/** Angular Imports */
import { Injectable } from '@angular/core';
import { HttpClient, HttpParams } from '@angular/common/http';

/** rxjs Imports */
import { Observable } from 'rxjs';

/**
 * Navigation service.
 */
@Injectable({
  providedIn: 'root'
})
export class NavigationService {
  /**
   * @param {HttpClient} http Http Client to send requests.
   */
  constructor(private http: HttpClient) {}

  /**
   * @returns {Observable<any>} Offices.
   */
  getOffices(): Observable<any> {
    return this.http.get('/offices');
  }

  /**
   * @param {number} officeId Office Id to get employees from.
   * @returns {Observable<any>} Employees
   */
  getEmployees(officeId: number): Observable<any> {
    const httpParams = new HttpParams().set('officeId', officeId.toString());
    return this.http.get('/staff', { params: httpParams });
  }

  /**
   * @param {number} staffId Staff Id to get centers from.
   * @returns {Observable<any>} Centers
   */
  getCentersFromStaffId(staffId: number): Observable<any> {
    const httpParams = new HttpParams().set('R_staffId', staffId.toString()).set('genericResultSet', false.toString());
    return this.http.get('/runreports/GroupNamesByStaff', { params: httpParams });
  }

  /**
   * @param {number} centerId Center ID of center
   * @returns {Observable<any>} Center
   */
  getCenter(centerId: number): Observable<any> {
    const httpParams = new HttpParams().set('associations', 'groupMembers');
    return this.http.get(`/centers/${centerId}`, { params: httpParams });
  }

  /**
   * @param {number} centerId Center ID of center to retrieve accounts of
   * @returns {Observable<any>} Center Accounts
   */
  getCenterAccounts(centerId: number): Observable<any> {
    return this.http.get(`/centers/${centerId}/accounts`);
  }

  /**
   * @param {number} centerId Center ID of center to retrieve summary of
   * @returns {Observable<any>} Center Accounts
   */
  getCenterSummary(centerId: number): Observable<any> {
    const httpParams = new HttpParams().set('R_groupId', centerId.toString()).set('genericResultSet', false.toString());
    return this.http.get('/runreports/GroupSummaryCounts', { params: httpParams });
  }

  /**
   * @param {number} groupId Group ID of group
   * @returns {Observable<any>} Group
   */
  getGroup(groupId: number): Observable<any> {
    const httpParams = new HttpParams().set('associations', 'all');
    return this.http.get(`/groups/${groupId}`, { params: httpParams });
  }

  /**
   * @param {number} groupId Group ID of group to retrieve accounts of
   * @returns {Observable<any>} Group Accounts
   */
  getGroupAccounts(groupId: number): Observable<any> {
    return this.http.get(`/groups/${groupId}/accounts`);
  }

  /**
   * @param {number} clientId Client ID of client
   * @returns {Observable<any>} Client
   */
  getClient(clientId: number): Observable<any> {
    return this.http.get(`/clients/${clientId}`);
  }

  /**
   * @param {number} clientId Client ID of client to retrieve accounts of
   * @returns {Observable<any>} Client Accounts
   */
  getClientAccounts(clientId: number): Observable<any> {
    return this.http.get(`/clients/${clientId}/accounts`);
  }
}