import {inject, Injectable} from '@angular/core';
import {HttpClient} from '@angular/common/http';
import {Observable} from 'rxjs';
import {environment} from '../../environments/environment';

export interface EligibleCommunity {
  id: string;
  name: string;
  type: string;
  edaEcId: string;
}

export interface MembershipRequest {
  meteringPointId: string;
  energyCommunityId: string;
  priorityLevel: number;
}

export interface MembershipResponse {
  id: string;
  meteringPointId: string;
  atNumber: string;
  energyCommunityId: string;
  communityName: string;
  priorityLevel: number;
  status: string;
  validFrom: string | null;
  validTo: string | null;
}

export interface PendingMembershipResponse {
  id: string;
  userEmail: string;
  firstName: string;
  lastName: string;
  atNumber: string;
  communityName: string;
  priorityLevel: number;
  status: string;
}

@Injectable({providedIn: 'root'})
export class MembershipService {
  private http = inject(HttpClient);
  private apiUrl = `${environment.apiUrl}/api/community`;

  getEligibleCommunities(meteringPointId: string): Observable<EligibleCommunity[]> {
    return this.http.get<EligibleCommunity[]>(`${this.apiUrl}/metering-points/${meteringPointId}/eligible-communities`);
  }

  requestMembership(request: MembershipRequest): Observable<string> {
    return this.http.post<string>(`${this.apiUrl}/memberships/request`, request);
  }

  getOwnMemberships(): Observable<MembershipResponse[]> {
    return this.http.get<MembershipResponse[]>(`${this.apiUrl}/memberships/me`);
  }

  getPendingMemberships(): Observable<PendingMembershipResponse[]> {
    return this.http.get<PendingMembershipResponse[]>(`${this.apiUrl}/admin/memberships/pending`);
  }

  approveMembership(id: string): Observable<void> {
    return this.http.put<void>(`${this.apiUrl}/admin/memberships/${id}/approve`, {});
  }

  rejectMembership(id: string): Observable<void> {
    return this.http.put<void>(`${this.apiUrl}/admin/memberships/${id}/reject`, {});
  }
}