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

export interface TenantAttachment {
  id: string;
  fileName: string;
  contentType: string;
  size: number;
}

export interface Tenant {
  id?: string;
  firstName: string;
  lastName: string;
  email: string;
  phone: string;
  address: string;
  attachments?: TenantAttachment[];
}

@Injectable({ providedIn: 'root' })
export class TenantService {
  private readonly http = inject(HttpClient);

  getTenants(): Observable<Tenant[]> {
    return this.http.get<Tenant[]>('/api/tenants');
  }

  createTenant(tenant: Tenant): Observable<Tenant> {
    return this.http.post<Tenant>('/api/tenants', tenant);
  }

  updateTenant(id: string, tenant: Tenant): Observable<Tenant> {
    return this.http.put<Tenant>(`/api/tenants/${id}`, tenant);
  }

  deleteTenant(id: string): Observable<void> {
    return this.http.delete<void>(`/api/tenants/${id}`);
  }

  uploadAttachment(tenantId: string, file: File): Observable<TenantAttachment> {
    const formData = new FormData();
    formData.append('file', file);
    return this.http.post<TenantAttachment>(`/api/tenants/${tenantId}/attachments`, formData);
  }

  downloadAttachment(tenantId: string, attachmentId: string): Observable<Blob> {
    return this.http.get(`/api/tenants/${tenantId}/attachments/${attachmentId}`, {
      responseType: 'blob',
    });
  }
}