import React from 'react';
import { BrowserRouter as Router, Route, Link, Switch } from 'react-router-dom';
import * as qs from 'query-string';

import Icon from './components/Icon';
import { Discover, Discussions, Blog, Tag, Home } from './components/Feeds';
import { Friends, Readers } from './components/Users';
import Settings from './components/Settings';
import Contacts from './components/Contacts';
import Chat from './components/Chat';
import Post from './components/Post';
import Thread from './components/Thread';
import LoginButton from './components/LoginButton';
import { AvatarLink } from './components/Avatar';
import Header from './components/Header';
import SearchBox from './components/SearchBox';

import cookies from 'react-cookies';

import { me } from './api';

export default class App extends React.Component {
  constructor(props) {
    super(props);
    let params = qs.parse(window.location.search);
    if (params.hash) {
      cookies.save('hash', params.hash, { path: '/' });
      window.history.replaceState({}, document.title, `${window.location.protocol}//${window.location.host}${window.location.pathname}`);
    }
    this.state = {
      visitor: {
        uid: Number(cookies.load('_juick_uid')),
        hash: cookies.load('hash')
      }
    };
    this.pm = React.createRef();
    this.thread = React.createRef();
  }

  initES = () => {
    const params = { hash: this.state.visitor.hash };
    let url = new URL(`https://api.juick.com/events?${qs.stringify(params)}`);
    this.es = new EventSource(url);
    this.es.onopen = () => {
      console.log('online');
    };
    this.es.addEventListener('msg', msg => {
      try {
        var jsonMsg = JSON.parse(msg.data);
        console.log('data: ' + msg.data);
        // refresh server visitor state (unread counters)
        me().then(visitor => {
          this.setState({
            visitor: visitor
          });
        });
        if (jsonMsg.service) {
          return;
        }
        if (!jsonMsg.mid) {
          this.pm.current.onMessage(jsonMsg);
        }
        if (jsonMsg.rid && this.thread.current) {
          this.thread.current.onReply(jsonMsg);
        }
      } catch (err) {
        console.log(err);
      }
    });
  }

  componentDidMount() {
    const { hash } = this.state.visitor;
    this.initES();
    if (hash) {
      me().then(visitor => this.auth(visitor));
    }
  }
  search = (history, pathname, searchString) => {
    let location = {};
    location.pathname = pathname;
    location.search = `?search=${searchString}`;
    history.push(location);
  }
  render() {
    const user = this.state.visitor;
    return (
      <Router>
        <>
          <Header>
            <div id="header_wrapper">
              {user.uid > 0 ?
                <div id="ctitle">
                  {user.uname ? <AvatarLink user={user} /> : <Icon name="ei-spinner" size="m" />}
                </div>
                :
                <div id="logo"><Link to="/">Juick</Link></div>
              }
              <div id="search">
                <SearchBox pathname="/discover" onSearch={this.search} {...this.props} />
              </div>
              <nav id="global">
                <ul>
                  {user.uid > 0 ?
                    <li>
                      <Link to={{ pathname: '/' }}>
                        <Icon name="ei-comment" size="s" /><span>Discuss</span>
                        {
                          user.unreadCount &&
                          <span className="badge">{user.unreadCount}</span>
                        }
                      </Link>
                    </li>
                    :
                    <li><Link to='/?media=1' rel="nofollow"><Icon name="ei-camera" size="s" />Photos</Link></li>
                  }
                  <li><Link to={{ pathname: '/discover' }} rel="nofollow"><Icon name="ei-search" size="s" />Discover</Link></li>
                  <li>
                    {user.uid > 0 ?
                      <Link to={{ pathname: '/post' }}><Icon name="ei-pencil" size="s" />Post</Link>
                      :
                      <LoginButton title="Login" onAuth={this.auth} />
                    }
                  </li>
                </ul>
              </nav>
            </div>
          </Header>
          <div id="wrapper">
            <section id="content">
              <Switch>
                <Route exact path="/" render={(props) => <Discussions visitor={user} {...props} />} />
                <Route exact path="/home" render={(props) => <Home visitor={user} {...props} />} />
                <Route exact path="/discover" render={(props) =>
                  <Discover visitor={user} {...props} />
                } />
                <Route exact path="/settings" render={(props) =>
                  <Settings visitor={user} {...props} />
                } />
                <Route exact path="/post" render={(props) => <Post visitor={user} {...props} />} />
                <Route exact path="/pm" render={(props) => <Contacts visitor={user} {...props} />} />
                <Route exact path="/pm/:user" render={(props) => <Chat ref={this.pm} visitor={user} {...props} />} />
                <Route exact path="/:user/friends" render={(props) => <Friends visitor={user} {...props} />} />
                <Route exact path="/:user/readers" render={(props) => <Readers visitor={user} {...props} />} />
                <Route exact path="/:user" render={(props) => <Blog key={props.match.params.user} visitor={user} {...props} />} />
                <Route exact path="/tag/:tag" render={(props) => <Tag visitor={user} {...props} />} />
                <Route exact path="/:user/:mid" render={(props) => <Thread ref={this.thread} visitor={user} {...props} />} />
              </Switch>
            </section>
          </div>
        </>
      </Router>
    );
  }
  auth = (visitor) => {
    cookies.save('_juick_uid', visitor.uid, { path: '/' });
    this.setState({
      visitor: visitor
    });
  }
}