import React from "react";
import "./App.css";
import Header from "./Components/Header/Header";
import { Switch, Route, Redirect } from "react-router-dom";
import Movies from "./Pages/Movies/Movies";
import TvShow from "./Pages/TVShows/TvShow";
import MovieItemPage from "./Pages/MovieItemPage/MovieItemPage";
import TVShowItemPage from "./Pages/TVShowItemPage/TVShowItemPage";
import SignIn from "./Pages/SignIn/SignIn";
import SignUp from "./Pages/SignUp/SignUp";
import { auth } from "./Firebase/firebase.utils";
import { CreateUserProfileDocument } from "./Firebase/firebase.utils";
import { setCurrentUser } from "./Redux/User/user-actions";
import { selectCurrentUser } from "./Redux/User/user-selectors";
import { connect } from "react-redux";
import SearchPage from "./Components/SearchPage/SearchPage";
import { compose } from "redux";
import { withRouter } from "react-router";
import ListOverview from "./Components/ListOverview/ListOverview";

class App extends React.Component {
  unsubscribeFromAuth = null;

  componentDidMount() {
    this.unsubscribeFromAuth = auth.onAuthStateChanged(async userAuth => {
      if (userAuth) {
        const userRef = await CreateUserProfileDocument(userAuth);

        userRef.onSnapshot(snapShot => {
          this.props.setCurrentUser({
            id: snapShot.id,
            ...snapShot.data()
          });
        });
      } else {
        this.props.setCurrentUser(userAuth);
      }
    });
  }

  componentWillUnmount() {
    this.unsubscribeFromAuth();
  }

  render() {
    return (
      <div>
        <Header currentRoute={this.props.location.pathname} />
        <Switch>
          <Route exact path="/" component={Movies} />
          <Route path="/movies/:title" component={MovieItemPage} />
          <Route path="/movies" component={Movies} />
          <Route path="/tvshows/:name" component={TVShowItemPage} />
          <Route path="/tvshows" component={TvShow} />
          <Route
            exact
            path="/signin"
            render={() =>
              this.props.currentUser ? <Redirect to="/" /> : <SignIn />
            }
          />
          <Route
            exact
            path="/signup"
            render={() =>
              this.props.currentUser ? <Redirect to="/" /> : <SignUp />
            }
          />
          <Route exact path="/searchresults" component={SearchPage} />
          <Route exact path="/mylist" component={ListOverview} />
        </Switch>
      </div>
    );
  }
}

const mapStateToProps = state => ({
  currentUser: selectCurrentUser(state)
});

const mapDispatchToProps = dispatch => ({
  setCurrentUser: user => dispatch(setCurrentUser(user))
});

export default compose(
  withRouter,
  connect(
    mapStateToProps,
    mapDispatchToProps
  )
)(App);