import * as React from 'react';
import { HashRouter as Router, Route, Redirect, Switch } from 'react-router-dom';

import { withStyles, WithStyles, createStyles, Theme } from '@material-ui/core/styles';
import { faHome, faAddressBook, faSignInAlt } from '@fortawesome/free-solid-svg-icons';

import AppFrame from '../components/routing/appFrame';
import TitleBar from '../components/titleBar';
import Menu from '../components/navigationMenu';
import ErrorDisplay from '../components/errorDisplay';
import SnackDisplay from '../components/material-ui/snackDisplay';

import Home from '../views/home';
import Login from '../views/login';
import About from '../views/about';

import applicationService from '../services/applicationManager';
import { SnackbarProvider } from 'notistack';

const styles = (theme: Theme) => createStyles({
  root: {
    flexGrow: 1,
    height: '100%',
    zIndex: 1,
    overflow: 'hidden',
    position: 'relative',
    display: 'flex',
  },
  content: {
    flexGrow: 1,
    display: "flex", 
    flexDirection: "column",
    backgroundColor: theme.palette.background.default,
    padding: theme.spacing.unit * 3,
    minWidth: 0, // So the Typography noWrap works
  },
  toolbar: theme.mixins.toolbar
});

export const Frame = withStyles(styles)(({ classes }: WithStyles<typeof styles>) => {
  const registrations = applicationService.applications;
  return (
    <SnackbarProvider maxSnack={3}>
      <Router>
        <div className={ classes.root }>
          <SnackDisplay />
          <ErrorDisplay />
          <TitleBar />
          <Menu />
          <main className={ classes.content }>
            <div className={ classes.toolbar } />
            <Switch>
              <Route exact path="/" component={ () => (
                <AppFrame title={ "Home" } icon={ faHome } >
                  <Home />
                </AppFrame>
              ) } />
              <Route path="/about" component={ () => (
                <AppFrame title={ "About" } icon={ faAddressBook } >
                  <About />
                </AppFrame>
              ) } />
              <Route path="/login" component={ () => (
                <AppFrame title={ "Login" } icon={ faSignInAlt } >
                  <Login />
                </AppFrame>
              ) } />
              { Object.keys(registrations).map(p => {
                const application = registrations[p];
                return (<Route key={ application.name } path={ application.path || `/${ application.name }` } component={ () => (
                  <AppFrame title={ application.title || (typeof application.menuEntry === 'string' && application.menuEntry) || application.name } icon={ application.icon } >
                    <application.rootComponent />
                  </AppFrame>
                ) } />)
              }) }
              <Redirect to="/" />
            </Switch>
          </main>
        </div>
      </Router>
    </SnackbarProvider>
  );
});

export default Frame; 
