import {Component, OnInit} from "@angular/core";
import {Location} from "@angular/common";

import {FormControl} from "@angular/forms";
import {ActivatedRoute, Router} from "@angular/router";
import {Observable} from "rxjs/Observable";
import {UserService} from "../../services/user-service/user.service";
import {User} from "../../models/model-interfaces";

@Component({
  selector: 'squad-list',
  templateUrl: './user-list.component.html',
  styleUrls: ['./user-list.component.css']
})
export class UserListComponent implements OnInit {

  selectedUserId: string | number = null;

  users$: Observable<User[]>;

  searchTerm = new FormControl();

  fractionRadioSelect: string;

  constructor(private userService: UserService,
              private router: Router,
              private route: ActivatedRoute,
              private location: Location) {
  }

  ngOnInit() {

    this.users$ = this.userService.users$;

    const paramsStream = this.route.queryParams
      .map(params => decodeURI(params['query'] || ''))
      .do(query => this.searchTerm.setValue(query));

    const searchTermStream = this.searchTerm.valueChanges
      .debounceTime(400)
      .do(query => this.adjustBrowserUrl(query));

    Observable.merge(paramsStream, searchTermStream)
      .distinctUntilChanged()
      .switchMap(query => this.userService.findUsers(query, this.fractionRadioSelect))
      .subscribe();

  }

  openNewUserForm() {
    this.router.navigate([{outlets: {'right': ['new']}}], {relativeTo: this.route});
  }

  selectUser(userId: string) {
    this.selectedUserId = userId;
    this.router.navigate([{outlets: {'right': ['overview', userId]}}], {relativeTo: this.route});
  }

  awardUser(userId: string) {
    this.selectedUserId = userId;
    this.router.navigate([{outlets: {'right': ['award', userId]}}], {relativeTo: this.route});
  }

  deleteUser(user: User) {
    this.userService.deleteUser(user)
      .subscribe((res) => {

      })
  }

  filterUsersByFraction(query = '', fractionFilter) {
    this.users$ = this.userService.findUsers(query, fractionFilter);
  }

  adjustBrowserUrl(queryString = '') {
    const absoluteUrl = this.location.path().split('?')[0];
    const queryPart = queryString !== '' ? `query=${queryString}` : '';

    this.location.replaceState(absoluteUrl, queryPart);
  }

}