import React, { Component } from 'react';

import ReactDOM from 'react-dom';

export default class LoginNav extends Component {

  state = {

    showDropdown: false

  }

  componentWillMount() {

    document.addEventListener('click', this.handleClickOutside, false);

  }

  componentWillUnmount() {

    document.removeEventListener('click', this.handleClickOutside, false);

  }

  handleClickOutside = (e) => {

    e.preventDefault();

    const currentNode = ReactDOM.findDOMNode(this);

    if(!currentNode.contains(e.target)) {

      this.hideDropDown();

    }

  }

  onClickSettings = (e) => {

    e.preventDefault();

    this.props.history.push('/settings');

  }

  onClickLogin = (e) => {

    e.preventDefault();

    this.props.history.push('/login');

  }

  toggleShowDropdown = () => {

    this.setState({showDropdown: !this.state.showDropdown});

  }

  hideDropDown = () => {

    this.setState({showDropdown: false});

  }

  render() {

    const {isAuthenticated, currentUser, onLogout} = this.props;

    if (isAuthenticated) {

      return (

        <li className={`nav-item dropdown ${this.state.showDropdown?'show':''}`}>

          <a name className="nav-link dropdown-toggle username font-weight-bold" id="navbarDropdown" role="button" aria-haspopup="true" aria-expanded={this.state.showDropdown} onClick={this.toggleShowDropdown} onBlur={this.hideDropDown}>

          { currentUser.get('username') }

          &nbsp;<span className="caret"></span>

          </a>

          <div className={`dropdown-menu dropdown-menu-right bg-primary border-0 ${this.state.showDropdown?'show':''}`} aria-labelledby="navbarDropdown">

            <a className="dropdown-item bg-primary text-secondary font-weight-bold" onClick={this.onClickSettings}>Paramètres</a>

            <a className="dropdown-item bg-primary text-secondary font-weight-bold" onClick={onLogout}>Se déconnecter</a>

          </div>

        </li>

      );

    } else {

      return (

          <li className="nav-item">

          <a className="nav-link" onClick={this.onClickLogin} href="/login">Se connecter</a>

          </li>

      );

    }

  }

}