import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from "@angular/common/http";
import { Observable } from 'rxjs';
import { jwtDecode } from "jwt-decode";

@Injectable({
  providedIn: 'root'
})
export class AuthService {
  serverEndpoint = "http://localhost:3000/"

  constructor(private httpClient: HttpClient) { }

  login(username: string, password: string): Observable<any> {
    const headers = new HttpHeaders();
    headers.append('Content-Type', 'application/json');
    return this.httpClient.post(this.serverEndpoint+"auth/login", { username, password }, { headers })
  }

  testProfile(): Observable<any> {
    console.log("SendTestProfile")
    return this.httpClient.get(this.serverEndpoint+"auth/profile")
  }

  logout(): void {
    // Clear the token from local storage
    localStorage.removeItem('token');
  }

  isAuthenticated(): boolean {
    const token = localStorage.getItem('token');

    if (!token) {
      return false;
    }

    try {
      const decoded: any = jwtDecode(token);

      // Check if the token is expired
      const isTokenExpired = decoded.exp < Date.now() / 1000;

      return !isTokenExpired;
    } catch (error) {
      console.error('Error decoding JWT:', error);
      return false;
    }
  }
}