import { Injectable } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';

import { UserRole } from '../enums/user-role.enum';
import { Choice } from '../models/choice.model';
import { Poll } from '../models/poll.model';
import { User } from '../models/user.model';
import { ApiService } from './api.service';
import { UserService } from './user.service';
import { UuidService } from './uuid.service';

@Injectable({
	providedIn: 'root',
})
export class MockingService {
	private _pollsAvailables: BehaviorSubject<Poll[]> = new BehaviorSubject<Poll[]>([]);
	public readonly pollsAvailables: Observable<Poll[]> = this._pollsAvailables.asObservable();

	constructor(private apiService: ApiService, private userService: UserService, private uuidService: UuidService) {}

	public async init(): Promise<void> {
		const pollsAvailable = await this.apiService.getAllAvailablePolls();
		this._pollsAvailables.next(pollsAvailable);

		if (this._pollsAvailables.getValue() && this._pollsAvailables.getValue().length > 0) {
			// arbitrary choose first owner available
			const currentUser = this._pollsAvailables.getValue()[0].owner;
			currentUser.polls = [this._pollsAvailables.getValue()[0]];
			this.userService.updateUser(currentUser);
		} else {
			this.loadMock();
		}
	}

	public loadMock(): void {
		const owner = new User('TOTO', 'toto@gafam.com', [], UserRole.REGISTERED);

		const poll1: Poll = new Poll(owner, this.uuidService.getUUID(), 'Quand le picnic ?', 'Pour faire la teuf');
		const poll2: Poll = new Poll(
			owner,
			this.uuidService.getUUID(),
			'On fait quoi à la soirée ?',
			'Balancez vos idées'
		);

		poll1.choices = [new Choice('mardi prochain'), new Choice('mercredi')];
		poll2.choices = [new Choice('jeux'), new Choice('danser'), new Choice('discuter en picolant')];

		this._pollsAvailables.next([poll1, poll2]);
		owner.polls = [poll1, poll2];
		this.userService.updateUser(owner);

		console.info('MOCKING user', { user: owner });
	}
}