'use strict';

const events = require('../events.js');
const api = require('../api.js');
const views = require('../util/views.js');

const template = views.getTemplate('user-registration');

class RegistrationView extends events.EventTarget {
    constructor() {
        super();
        this._hostNode = document.getElementById('content-holder');
        views.replaceContent(this._hostNode, template({
            userNamePattern: api.getUserNameRegex(),
            passwordPattern: api.getPasswordRegex(),
        }));
        views.syncScrollPosition();
        views.decorateValidator(this._formNode);
        this._formNode.addEventListener('submit', e => this._evtSubmit(e));
    }

    clearMessages() {
        views.clearMessages(this._hostNode);
    }

    showError(message) {
        views.showError(this._hostNode, message);
    }

    enableForm() {
        views.enableForm(this._formNode);
    }

    disableForm() {
        views.disableForm(this._formNode);
    }

    _evtSubmit(e) {
        e.preventDefault();
        this.dispatchEvent(new CustomEvent('submit', {
            detail: {
                name:  this._userNameFieldNode.value,
                password: this._passwordFieldNode.value,
                email: this._emailFieldNode.value,
            },
        }));
    }

    get _formNode() {
        return this._hostNode.querySelector('form');
    }

    get _userNameFieldNode() {
        return this._formNode.querySelector('[name=name]');
    }

    get _passwordFieldNode() {
        return this._formNode.querySelector('[name=password]');
    }

    get _emailFieldNode() {
        return this._formNode.querySelector('[name=email]');
    }
}

module.exports = RegistrationView;
