import { Component, inject, OnDestroy, OnInit } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { MatInputModule } from '@angular/material/input';
import { MatSelectModule } from '@angular/material/select';
import { MatFormFieldModule } from '@angular/material/form-field';
import { MatButtonModule } from '@angular/material/button';
import EventService from '../../shared/services/EventService';
import { HttpClient } from '@angular/common/http';
import { ActivatedRoute, Router } from '@angular/router';
import { first, Subscription, timeout } from 'rxjs';
import { HermesClientService } from '../../hermes-client.service';
import { MatCardModule } from '@angular/material/card';
import { ApiKeyService } from '../../shared/services/api/api-key.service';

@Component({
  selector: 'tts-login',
  standalone: true,
  imports: [MatButtonModule, MatCardModule, MatFormFieldModule, MatSelectModule, MatInputModule, FormsModule],
  templateUrl: './tts-login.component.html',
  styleUrl: './tts-login.component.scss'
})
export class TtsLoginComponent implements OnInit, OnDestroy {
  keyService = inject(ApiKeyService);
  route = inject(ActivatedRoute);

  api_keys: { id: string, label: string }[] = [];
  selected_api_key: string | undefined;

  private subscriptions: Subscription[] = [];

  constructor(private hermes: HermesClientService, private events: EventService, private http: HttpClient, private router: Router) {
  }

  ngOnInit(): void {
    this.route.data.subscribe(d => this.api_keys = d['keys']);

    this.subscriptions.push(this.events.listen('tts_login_ack', async _ => {
      await this.router.navigate(['policies'])
    }));
    this.subscriptions.push(this.events.listen('tts_logoff', async _ => {
      this.selected_api_key = undefined;
      await this.router.navigate(['tts-login'])
    }));
    this.subscriptions.push(this.events.listen('impersonation', _ => {
      this.selected_api_key = undefined;

      this.keyService.fetch(true)
        .pipe(timeout(3000), first())
        .subscribe(d => this.api_keys = d);
    }));
  }

  ngOnDestroy(): void {
    if (!this.hermes.logged_in)
      this.subscriptions.forEach(s => s.unsubscribe());
  }

  login() {
    if (!this.selected_api_key)
      return;

    this.hermes.login(this.selected_api_key);
  }
}