// dvbooking-cli/src/templates/angular/service.ts.tpl

// Generated by the CLI
import { Injectable } from '@angular/core';
import { HttpClient, HttpParams } from '@angular/common/http';
import { Observable } from 'rxjs';
import { Booking } from '../models/booking.model';
import { ConfigurationService } from '../../../services/configuration.service';
import { PaginatedResponse } from '../../../../types';


export interface SearchResponse<T> {
  data: T[];
  total: number;
}

@Injectable({
  providedIn: 'root'
})
export class BookingService {
  private readonly apiUrl: string;

  constructor(
    private http: HttpClient,
    private configService: ConfigurationService
  ) {
    this.apiUrl = `${this.configService.getApiUrl()}/bookings`;
  }

  /**
   * Find records with pagination and filtering.
   */
  public find(filter: Record<string, any>): Observable<PaginatedResponse<Booking>> {
    // --- THIS IS THE FIX ---
    // The incorrect line: .filter(([_, v]) for v != null)
    // is now correctly written with an arrow function.
    const cleanFilter = Object.fromEntries(
      Object.entries(filter).filter(([_, v]) => v != null)
    );
    // --- END OF FIX ---

    const params = new HttpParams({ fromObject: cleanFilter });
    return this.http.get<PaginatedResponse<Booking>>(this.apiUrl, { params });
  }

   /**
   * Search across multiple fields with a single term.
   * @param term The search term (q).
   */
 public search(term: string, page: number = 1, limit: number = 10): Observable<PaginatedResponse<Booking>> {
    const params = new HttpParams()
      .set('q', term)
      .set('page', page.toString())
      .set('limit', limit.toString());
    return this.http.get<PaginatedResponse<Booking>>(`${this.apiUrl}/search`, { params });
  }

  /**
   * Find a single record by its ID.
   */
  public findOne(id: number): Observable<Booking> {
    return this.http.get<Booking>(`${this.apiUrl}/${id}`);
  }

  /**
   * Create a new record.
   */
  public create(data: Omit<Booking, 'id'>): Observable<Booking> {
    return this.http.post<Booking>(this.apiUrl, data);
  }

  /**
   * Update an existing record.
   */
  public update(id: number, data: Partial<Omit<Booking, 'id'>>): Observable<Booking> {
    return this.http.patch<Booking>(`${this.apiUrl}/${id}`, data);
  }

  /**
   * Remove a record by its ID.
   */
  public remove(id: number): Observable<any> {
    return this.http.delete(`${this.apiUrl}/${id}`);
  }
}