21 files changed, 686 insertions, 109 deletions
diff --git a/modern/package.json b/modern/package.json
index bd1dd33e..e5438b53 100644
--- a/modern/package.json
+++ b/modern/package.json
@@ -9,6 +9,7 @@
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "^4.0.0-alpha.56",
     "@reduxjs/toolkit": "^1.4.0",
+    "@turf/turf": "^5.1.6",
     "mapbox-gl": "^1.12.0",
     "moment": "^2.28.0",
     "ol": "^6.4.3",
diff --git a/modern/src/App.js b/modern/src/App.js
index 6ea74297..f4de837b 100644
--- a/modern/src/App.js
+++ b/modern/src/App.js
@@ -15,26 +15,38 @@ import GroupsPage from './settings/GroupsPage';
 import GroupPage from './settings/GroupPage';
 import PositionPage from './PositionPage';
 import EventReportPage from './reports/EventReportPage';
+import ReplayPage from './reports/ReplayPage';
+import { useSelector } from 'react-redux';
+import { LinearProgress } from '@material-ui/core';
 
 const App = () => {
+  const initialized = useSelector(state => !!state.session.server && !!state.session.user);
+
   return (
     <>
       <CssBaseline />
       <SocketController />
       <Switch>
-        <Route exact path='/' component={MainPage} />
         <Route exact path='/login' component={LoginPage} />
-        <Route exact path='/position/:id?' component={PositionPage} />
-        <Route exact path='/user/:id?' component={UserPage} />
-        <Route exact path='/device/:id?' component={DevicePage} />
-        <Route exact path='/reports/route' component={RouteReportPage} />
-        <Route exact path='/settings/notifications' component={NotificationsPage} />
-        <Route exact path='/settings/notification/:id?' component={NotificationPage} />
-        <Route exact path='/settings/groups' component={GroupsPage} />
-        <Route exact path='/settings/group/:id?' component={GroupPage} />
-        <Route exact path='/admin/server' component={ServerPage} />
-        <Route exact path='/admin/users' component={UsersPage} />
-        <Route exact path='/reports/event' component={EventReportPage} />
+        <Route>
+          {!initialized ? (<LinearProgress />) : (
+            <Switch>
+              <Route exact path='/' component={MainPage} />
+              <Route exact path='/replay' component={ReplayPage} />
+              <Route exact path='/position/:id?' component={PositionPage} />
+              <Route exact path='/user/:id?' component={UserPage} />
+              <Route exact path='/device/:id?' component={DevicePage} />
+              <Route exact path='/reports/route' component={RouteReportPage} />
+              <Route exact path='/settings/notifications' component={NotificationsPage} />
+              <Route exact path='/settings/notification/:id?' component={NotificationPage} />
+              <Route exact path='/settings/groups' component={GroupsPage} />
+              <Route exact path='/settings/group/:id?' component={GroupPage} />
+              <Route exact path='/admin/server' component={ServerPage} />
+              <Route exact path='/admin/users' component={UsersPage} />
+              <Route exact path='/reports/event' component={EventReportPage} />
+            </Switch>
+          )}
+        </Route>
       </Switch>
     </>
   );
diff --git a/modern/src/DevicesList.js b/modern/src/DevicesList.js
index 15badcb9..976fd84a 100644
--- a/modern/src/DevicesList.js
+++ b/modern/src/DevicesList.js
@@ -47,7 +47,7 @@ const DeviceView = ({ updateTimestamp, onMenuClick }) => {
           <ListItem button key={item.id} onClick={() => dispatch(devicesActions.select(item))}>
             <ListItemAvatar>
               <Avatar>
-                <img className={classes.icon} src={`images/icon/${item.category || 'default'}.svg`} />
+                <img className={classes.icon} src={`images/icon/${item.category || 'default'}.svg`} alt="" />
               </Avatar>
             </ListItemAvatar>
             <ListItemText primary={item.name} secondary={item.uniqueId} />
diff --git a/modern/src/MainPage.js b/modern/src/MainPage.js
index adb86b25..b6b5044c 100644
--- a/modern/src/MainPage.js
+++ b/modern/src/MainPage.js
@@ -1,15 +1,15 @@
 import React from 'react';
-import { useSelector } from 'react-redux';
 import { isWidthUp, makeStyles, withWidth } from '@material-ui/core';
 import Drawer from '@material-ui/core/Drawer';
 import ContainerDimensions from 'react-container-dimensions';
-import LinearProgress from '@material-ui/core/LinearProgress';
 import DevicesList from './DevicesList';
 import MainToolbar from './MainToolbar';
 import Map from './map/Map';
-import PositionsMap from './map/PositionsMap';
 import SelectedDeviceMap from './map/SelectedDeviceMap';
+import AccuracyMap from './map/AccuracyMap';
 import GeofenceMap from './map/GeofenceMap';
+import CurrentPositionsMap from './map/CurrentPositionsMap';
+import CurrentLocationMap from './map/CurrentLocationMap';
 
 const useStyles = makeStyles(theme => ({
   root: {
@@ -41,10 +41,9 @@ const useStyles = makeStyles(theme => ({
 }));
 
 const MainPage = ({ width }) => {
-  const initialized = useSelector(state => !!state.session.server && !!state.session.user);
   const classes = useStyles();
 
-  return !initialized ? (<LinearProgress />) : (
+  return (
     <div className={classes.root}>
       <MainToolbar />
       <div className={classes.content}>
@@ -57,8 +56,10 @@ const MainPage = ({ width }) => {
         <div className={classes.mapContainer}>
           <ContainerDimensions>
             <Map>
+              <CurrentLocationMap />
               <GeofenceMap />
-              <PositionsMap />
+              <AccuracyMap />
+              <CurrentPositionsMap />
               <SelectedDeviceMap />
             </Map>
           </ContainerDimensions>
diff --git a/modern/src/MainToolbar.js b/modern/src/MainToolbar.js
index 897fd37e..b853dc47 100644
--- a/modern/src/MainToolbar.js
+++ b/modern/src/MainToolbar.js
@@ -29,6 +29,7 @@ import NotificationsActiveIcon from '@material-ui/icons/NotificationsActive';
 import FormatListBulletedIcon from '@material-ui/icons/FormatListBulleted';
 import TrendingUpIcon from '@material-ui/icons/TrendingUp';
 import FolderIcon from '@material-ui/icons/Folder';
+import ReplayIcon from '@material-ui/icons/Replay';
 import t from './common/localization';
 
 const useStyles = makeStyles(theme => ({
@@ -78,7 +79,7 @@ const MainToolbar = () => {
           </IconButton>
           <Typography variant="h6" color="inherit" className={classes.flex}>
             Traccar
-        </Typography>
+          </Typography>
           <Button color="inherit" onClick={handleLogout}>{t('loginLogout')}</Button>
         </Toolbar>
       </AppBar>
@@ -96,6 +97,12 @@ const MainToolbar = () => {
               </ListItemIcon>
               <ListItemText primary={t('mapTitle')} />
             </ListItem>
+            <ListItem button onClick={() => history.push('/replay')}>
+              <ListItemIcon>
+                <ReplayIcon />
+              </ListItemIcon>
+              <ListItemText primary={t('reportReplay')} />
+            </ListItem>
           </List>
           <Divider />
           <List
diff --git a/modern/src/RemoveDialog.js b/modern/src/RemoveDialog.js
index 8e7d97f4..bbcfb226 100644
--- a/modern/src/RemoveDialog.js
+++ b/modern/src/RemoveDialog.js
@@ -8,7 +8,7 @@ import DialogContentText from '@material-ui/core/DialogContentText';
 
 const RemoveDialog = ({ open, endpoint, itemId, onResult }) => {
   const handleRemove = async () => {
-    const response = await fetch(`/api/${endpoint}/${itemId}`, { method: 'DELETE' })
+    const response = await fetch(`/api/${endpoint}/${itemId}`, { method: 'DELETE' });
     if (response.ok) {
       onResult(true);
     }
diff --git a/modern/src/common/preferences.js b/modern/src/common/preferences.js
new file mode 100644
index 00000000..24fe389a
--- /dev/null
+++ b/modern/src/common/preferences.js
@@ -0,0 +1,21 @@
+import { useSelector } from 'react-redux';
+
+export const usePreference = (key, defaultValue) => {
+  return useSelector(state => {
+    if (state.session.server.forceSettings) {
+      return state.session.server[key] || state.session.user[key] || defaultValue;
+    } else {
+      return state.session.user[key] || state.session.server[key] || defaultValue;
+    }
+  });
+};
+
+export const useAttributePreference = (key, defaultValue) => {
+  return useSelector(state => {
+    if (state.session.server.forceSettings) {
+      return state.session.server.attributes[key] || state.session.user.attributes[key] || defaultValue;
+    } else {
+      return state.session.user.attributes[key] || state.session.server.attributes[key] || defaultValue;
+    }
+  });
+};
diff --git a/modern/src/map/AccuracyMap.js b/modern/src/map/AccuracyMap.js
new file mode 100644
index 00000000..e81fc8fb
--- /dev/null
+++ b/modern/src/map/AccuracyMap.js
@@ -0,0 +1,53 @@
+import { useEffect } from 'react';
+import { useSelector } from 'react-redux';
+import circle from '@turf/circle';
+
+import { map } from './Map';
+
+const AccuracyMap = () => {
+  const id = 'accuracy';
+
+  const positions = useSelector(state => ({
+    type: 'FeatureCollection',
+    features: Object.values(state.positions.items).filter(position => position.accuracy > 0).map(position =>
+      circle([position.longitude, position.latitude], position.accuracy * 0.001)
+    ),
+  }));
+
+  useEffect(() => {
+    map.addSource(id, {
+      'type': 'geojson',
+      'data': {
+        type: 'FeatureCollection',
+        features: []
+      }
+    });
+    map.addLayer({
+      'source': id,
+      'id': id,
+      'type': 'fill',
+      'filter': [
+         'all',
+         ['==', '$type', 'Polygon'],
+      ],
+      'paint': {
+         'fill-color':'#3bb2d0',
+         'fill-outline-color':'#3bb2d0',
+         'fill-opacity':0.25,
+      },
+    });
+
+    return () => {
+      map.removeLayer(id);
+      map.removeSource(id);
+    };
+  }, []);
+
+  useEffect(() => {
+    map.getSource(id).setData(positions);
+  }, [positions]);
+
+  return null;
+}
+
+export default AccuracyMap;
diff --git a/modern/src/map/CurrentLocationMap.js b/modern/src/map/CurrentLocationMap.js
new file mode 100644
index 00000000..31e6e285
--- /dev/null
+++ b/modern/src/map/CurrentLocationMap.js
@@ -0,0 +1,21 @@
+import mapboxgl from 'mapbox-gl';
+import { useEffect } from 'react';
+import { map } from './Map';
+
+const CurrentLocationMap = () => {
+  useEffect(() => {
+    const control = new mapboxgl.GeolocateControl({
+      positionOptions: {
+        enableHighAccuracy: true,
+        timeout: 5000,
+      },
+      trackUserLocation: true,
+    });
+    map.addControl(control);
+    return () => map.removeControl(control);
+  }, []);
+
+  return null;
+}
+
+export default CurrentLocationMap;
diff --git a/modern/src/map/CurrentPositionsMap.js b/modern/src/map/CurrentPositionsMap.js
new file mode 100644
index 00000000..0bfe4fcd
--- /dev/null
+++ b/modern/src/map/CurrentPositionsMap.js
@@ -0,0 +1,11 @@
+import React, {  } from 'react';
+import { useSelector } from 'react-redux';
+
+import PositionsMap from './PositionsMap';
+
+const CurrentPositionsMap = () => {
+  const positions = useSelector(state => Object.values(state.positions.items));
+  return (<PositionsMap positions={positions} />);
+}
+
+export default CurrentPositionsMap;
diff --git a/modern/src/map/Map.js b/modern/src/map/Map.js
index fec8d501..8a43e97b 100644
--- a/modern/src/map/Map.js
+++ b/modern/src/map/Map.js
@@ -1,8 +1,13 @@
 import 'mapbox-gl/dist/mapbox-gl.css';
+import './switcher/switcher.css';
 import mapboxgl from 'mapbox-gl';
+import { SwitcherControl } from './switcher/switcher';
 import React, { useRef, useLayoutEffect, useEffect, useState } from 'react';
 import { deviceCategories } from '../common/deviceCategories';
 import { loadIcon, loadImage } from './mapUtil';
+import { styleCarto, styleMapbox, styleOsm } from './mapStyles';
+import t from '../common/localization';
+import { useAttributePreference } from '../common/preferences';
 
 const element = document.createElement('div');
 element.style.width = '100%';
@@ -10,55 +15,83 @@ element.style.height = '100%';
 
 export const map = new mapboxgl.Map({
   container: element,
-  style: {
-    version: 8,
-    sources: {
-      osm: {
-        type: 'raster',
-        tiles: ["https://tile.openstreetmap.org/{z}/{x}/{y}.png"],
-        tileSize: 256,
-        attribution: '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
-      },
-    },
-    glyphs: 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
-    layers: [{
-      id: 'osm',
-      type: 'raster',
-      source: 'osm',
-    }],
-  },
+  style: styleOsm(),
 });
 
-map.addControl(new mapboxgl.NavigationControl());
+let ready = false;
+const readyListeners = new Set();
 
-let readyListeners = [];
+const addReadyListener = listener => {
+  readyListeners.add(listener);
+  listener(ready);
+};
 
-const onMapReady = listener => {
-  if (!readyListeners) {
-    listener();
-  } else {
-    readyListeners.push(listener);
-  }
+const removeReadyListener = listener => {
+  readyListeners.delete(listener);
 };
 
-map.on('load', async () => {
+const updateReadyValue = value => {
+  ready = value;
+  readyListeners.forEach(listener => listener(value));
+};
+
+const initMap = async () => {
   const background = await loadImage('images/background.svg');
   await Promise.all(deviceCategories.map(async category => {
-    const imageData = await loadIcon(category, background, `images/icon/${category}.svg`);
-    map.addImage(category, imageData, { pixelRatio: window.devicePixelRatio });
+    if (!map.hasImage(category)) {
+      const imageData = await loadIcon(category, background, `images/icon/${category}.svg`);
+      map.addImage(category, imageData, { pixelRatio: window.devicePixelRatio });
+    }
   }));
-  if (readyListeners) {
-    readyListeners.forEach(listener => listener());
-    readyListeners = null;
-  }
-});
+  updateReadyValue(true);
+};
+
+map.on('load', initMap);
+
+map.addControl(new mapboxgl.NavigationControl({
+  showCompass: false,
+}));
+
+map.addControl(new SwitcherControl(
+  [
+    { title: t('mapOsm'), uri: styleOsm() },
+    { title: t('mapCarto'), uri: styleCarto() },
+    { title: t('mapMapboxStreets'), uri: styleMapbox('streets-v11') },
+    { title: t('mapMapboxOutdoors'), uri: styleMapbox('outdoors-v11') },
+    { title: t('mapMapboxSatellite'), uri: styleMapbox('satellite-v9') },
+  ],
+  t('mapOsm'),
+  () => updateReadyValue(false),
+  () => {
+    const waiting = () => {
+      if (!map.loaded()) {
+        setTimeout(waiting, 100);
+      } else {
+        initMap();
+      }
+    };
+    waiting();
+  },
+));
 
 const Map = ({ children }) => {
   const containerEl = useRef(null);
 
   const [mapReady, setMapReady] = useState(false);
-  
-  useEffect(() => onMapReady(() => setMapReady(true)), []);
+
+  const mapboxAccessToken = useAttributePreference('mapboxAccessToken');
+
+  useEffect(() => {
+    mapboxgl.accessToken = mapboxAccessToken;
+  }, [mapboxAccessToken]);
+
+  useEffect(() => {
+    const listener = ready => setMapReady(ready);
+    addReadyListener(listener);
+    return () => {
+      removeReadyListener(listener);
+    };
+  }, []);
 
   useLayoutEffect(() => {
     const currentEl = containerEl.current;
diff --git a/modern/src/map/PositionsMap.js b/modern/src/map/PositionsMap.js
index 6a7a68bb..fa7b431a 100644
--- a/modern/src/map/PositionsMap.js
+++ b/modern/src/map/PositionsMap.js
@@ -1,4 +1,4 @@
-import React, { useEffect } from 'react';
+import React, { useCallback, useEffect } from 'react';
 import ReactDOM from 'react-dom';
 import mapboxgl from 'mapbox-gl';
 import { Provider, useSelector } from 'react-redux';
@@ -8,36 +8,25 @@ import store from '../store';
 import { useHistory } from 'react-router-dom';
 import StatusView from './StatusView';
 
-const PositionsMap = () => {
+const PositionsMap = ({ positions }) => {
   const id = 'positions';
 
   const history = useHistory();
+  const devices = useSelector(state => state.devices.items);
 
-  const createFeature = (state, position) => {
-    const device = state.devices.items[position.deviceId] || null;
+  const createFeature = (devices, position) => {
+    const device = devices[position.deviceId] || null;
     return {
       deviceId: position.deviceId,
       name: device ? device.name : '',
-      category: device && device.category || 'default',
+      category: device && (device.category || 'default'),
     }
   };
 
-  const positions = useSelector(state => ({
-    type: 'FeatureCollection',
-    features: Object.values(state.positions.items).map(position => ({
-      type: 'Feature',
-      geometry: {
-        type: 'Point',
-        coordinates: [position.longitude, position.latitude]
-      },
-      properties: createFeature(state, position),
-    })),
-  }));
-
   const onMouseEnter = () => map.getCanvas().style.cursor = 'pointer';
   const onMouseLeave = () => map.getCanvas().style.cursor = '';
 
-  const onClick = event => {
+  const onClickCallback = useCallback(event => {
     const feature = event.features[0];
     let coordinates = feature.geometry.coordinates.slice();
     while (Math.abs(event.lngLat.lng - coordinates[0]) > 180) {
@@ -59,12 +48,15 @@ const PositionsMap = () => {
       .setDOMContent(placeholder)
       .setLngLat(coordinates)
       .addTo(map);
-  };
+  }, [history]);
 
   useEffect(() => {
     map.addSource(id, {
       'type': 'geojson',
-      'data': positions,
+      'data': {
+        type: 'FeatureCollection',
+        features: [],
+      }
     });
     map.addLayer({
       'id': id,
@@ -88,23 +80,33 @@ const PositionsMap = () => {
 
     map.on('mouseenter', id, onMouseEnter);
     map.on('mouseleave', id, onMouseLeave);
-    map.on('click', id, onClick);
+    map.on('click', id, onClickCallback);
 
     return () => {
       Array.from(map.getContainer().getElementsByClassName('mapboxgl-popup')).forEach(el => el.remove());
 
       map.off('mouseenter', id, onMouseEnter);
       map.off('mouseleave', id, onMouseLeave);
-      map.off('click', id, onClick);
+      map.off('click', id, onClickCallback);
 
       map.removeLayer(id);
       map.removeSource(id);
     };
-  }, []);
+  }, [onClickCallback]);
 
   useEffect(() => {
-    map.getSource(id).setData(positions);
-  }, [positions]);
+    map.getSource(id).setData({
+      type: 'FeatureCollection',
+      features: positions.map(position => ({
+        type: 'Feature',
+        geometry: {
+          type: 'Point',
+          coordinates: [position.longitude, position.latitude],
+        },
+        properties: createFeature(devices, position),
+      }))
+    });
+  }, [devices, positions]);
 
   return null;
 }
diff --git a/modern/src/map/ReplayPathMap.js b/modern/src/map/ReplayPathMap.js
new file mode 100644
index 00000000..feab0718
--- /dev/null
+++ b/modern/src/map/ReplayPathMap.js
@@ -0,0 +1,59 @@
+import mapboxgl from 'mapbox-gl';
+import { useEffect } from 'react';
+import { map } from './Map';
+
+const ReplayPathMap = ({ positions }) => {
+  const id = 'replay';
+
+  useEffect(() => {
+    map.addSource(id, {
+      'type': 'geojson',
+      'data': {
+        type: 'Feature',
+        geometry: {
+          type: 'LineString',
+          coordinates: [],
+        },
+      },
+    });
+    map.addLayer({
+      'source': id,
+      'id': id,
+      'type': 'line',
+      'layout': {
+        'line-join': 'round',
+        'line-cap': 'round',
+      },
+      'paint': {
+         'line-color': '#333',
+         'line-width': 5,
+      },
+    });
+
+    return () => {
+      map.removeLayer(id);
+      map.removeSource(id);
+    };
+  }, []);
+
+  useEffect(() => {
+    const coordinates = positions.map(item => [item.longitude, item.latitude]);
+    map.getSource(id).setData({
+      type: 'Feature',
+      geometry: {
+        type: 'LineString',
+        coordinates: coordinates,
+      },
+    });
+    if (coordinates.length) {
+      const bounds = coordinates.reduce((bounds, item) => bounds.extend(item), new mapboxgl.LngLatBounds(coordinates[0], coordinates[0]));
+      map.fitBounds(bounds, {
+        padding: { top: 50, bottom: 250, left: 25, right: 25 },
+      });
+    }
+  }, [positions]);
+
+  return null;
+}
+
+export default ReplayPathMap;
diff --git a/modern/src/map/StatusView.js b/modern/src/map/StatusView.js
index 3a304263..ae049af1 100644
--- a/modern/src/map/StatusView.js
+++ b/modern/src/map/StatusView.js
@@ -22,7 +22,7 @@ const StatusView = ({ deviceId, onShowDetails }) => {
       {position.attributes.batteryLevel &&
         <><b>{t('positionBattery')}:</b> {formatPosition(position.attributes.batteryLevel, 'batteryLevel')}<br /></>
       }
-      <a href="#" onClick={handleClick}>{t('sharedShowDetails')}</a>
+      <a href="/" onClick={handleClick}>{t('sharedShowDetails')}</a>
     </>
   );
 };
diff --git a/modern/src/map/mapStyles.js b/modern/src/map/mapStyles.js
new file mode 100644
index 00000000..ff323cb3
--- /dev/null
+++ b/modern/src/map/mapStyles.js
@@ -0,0 +1,52 @@
+export const styleCustom = (url, attribution) => ({
+  version: 8,
+  sources: {
+    osm: {
+      type: 'raster',
+      tiles: [url],
+      attribution: attribution,
+    },
+  },
+  glyphs: 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
+  layers: [{
+    id: 'osm',
+    type: 'raster',
+    source: 'osm',
+  }],
+});
+
+export const styleOsm = () => styleCustom(
+  'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+  '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
+);
+
+export const styleCarto = () => ({
+  'version': 8,
+  'sources': {
+    'raster-tiles': {
+      'type': 'raster',
+      'tiles': [
+          'https://a.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+          'https://b.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+          'https://c.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png',
+          'https://d.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}@2x.png'
+      ],
+      'tileSize': 256,
+      'attribution': '© <a target="_top" rel="noopener" href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a target="_top" rel="noopener" href="https://carto.com/attribution">CARTO</a>'
+    }
+  },
+  'glyphs': 'https://cdn.traccar.com/map/fonts/{fontstack}/{range}.pbf',
+  'layers': [
+    {
+      'id': 'simple-tiles',
+      'type': 'raster',
+      'source': 'raster-tiles',
+      'minzoom': 0,
+      'maxzoom': 22,
+    }
+  ]
+});
+
+export const styleMapbox = (style) => `mapbox://styles/mapbox/${style}`;
+
+export const styleMapTiler = (style, key) => `https://api.maptiler.com/maps/${style}/style.json?key=${key}`;
diff --git a/modern/src/map/mapUtil.js b/modern/src/map/mapUtil.js
index 71d7b3c9..15f16202 100644
--- a/modern/src/map/mapUtil.js
+++ b/modern/src/map/mapUtil.js
@@ -27,30 +27,6 @@ export const loadIcon = async (key, background, url) => {
   return context.getImageData(0, 0, canvas.width, canvas.height);
 };
 
-export const calculateBounds = features => {
-  if (features && features.length) {
-    const first = features[0].geometry.coordinates;
-    const bounds = [[...first], [...first]];
-    for (let feature of features) {
-      const longitude = feature.geometry.coordinates[0]
-      const latitude = feature.geometry.coordinates[1]
-      if (longitude < bounds[0][0]) {
-        bounds[0][0] = longitude;
-      } else if (longitude > bounds[1][0]) {
-        bounds[1][0] = longitude;
-      }
-      if (latitude < bounds[0][1]) {
-        bounds[0][1] = latitude;
-      } else if (latitude > bounds[1][1]) {
-        bounds[1][1] = latitude;
-      }
-    }
-    return bounds;
-  } else {
-    return null;
-  }
-}
-
 export const reverseCoordinates = it => {
   if (!it) {
     return it;
diff --git a/modern/src/map/switcher/switcher.css b/modern/src/map/switcher/switcher.css
new file mode 100644
index 00000000..6c8fdb4e
--- /dev/null
+++ b/modern/src/map/switcher/switcher.css
@@ -0,0 +1,40 @@
+.mapboxgl-style-list
+{
+  display: none;
+}
+
+.mapboxgl-ctrl-group .mapboxgl-style-list button
+{
+  background: none;
+  border: none;
+  cursor: pointer;
+  display: block;
+  font-size: 14px;
+  padding: 8px 8px 6px;
+  text-align: right;
+  width: 100%;
+  height: auto;
+}
+
+.mapboxgl-style-list button.active
+{
+  font-weight: bold;
+}
+
+.mapboxgl-style-list button:hover
+{
+  background-color: rgba(0, 0, 0, 0.05);
+}
+
+.mapboxgl-style-list button + button
+{
+  border-top: 1px solid #ddd;
+}
+
+.mapboxgl-style-switcher
+{ 
+  background-image: url(data:image/svg+xml;base64,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);
+  background-position: center;
+  background-repeat: no-repeat;
+  background-size: 70%;
+}
diff --git a/modern/src/map/switcher/switcher.js b/modern/src/map/switcher/switcher.js
new file mode 100644
index 00000000..ff9fbe97
--- /dev/null
+++ b/modern/src/map/switcher/switcher.js
@@ -0,0 +1,79 @@
+export class SwitcherControl {
+
+  constructor(styles, defaultStyle, beforeSwitch, afterSwitch) {
+    this.styles = styles;
+    this.defaultStyle = defaultStyle;
+    this.beforeSwitch = beforeSwitch;
+    this.afterSwitch = afterSwitch;
+    this.onDocumentClick = this.onDocumentClick.bind(this);
+  }
+
+  getDefaultPosition() {
+    return 'top-right';
+  }
+
+  onAdd(map) {
+    this.map = map;
+    this.controlContainer = document.createElement('div');
+    this.controlContainer.classList.add('mapboxgl-ctrl');
+    this.controlContainer.classList.add('mapboxgl-ctrl-group');
+    this.mapStyleContainer = document.createElement('div');
+    this.styleButton = document.createElement('button');
+    this.styleButton.type = 'button';
+    this.mapStyleContainer.classList.add('mapboxgl-style-list');
+    for (const style of this.styles) {
+      const styleElement = document.createElement('button');
+      styleElement.type = 'button';
+      styleElement.innerText = style.title;
+      styleElement.classList.add(style.title.replace(/[^a-z0-9-]/gi, '_'));
+      styleElement.dataset.uri = JSON.stringify(style.uri);
+      styleElement.addEventListener('click', event => {
+        const srcElement = event.srcElement;
+        if (srcElement.classList.contains('active')) {
+          return;
+        }
+        this.beforeSwitch();
+        this.map.setStyle(JSON.parse(srcElement.dataset.uri));
+        this.afterSwitch();
+        this.mapStyleContainer.style.display = 'none';
+        this.styleButton.style.display = 'block';
+        const elms = this.mapStyleContainer.getElementsByClassName('active');
+        while (elms[0]) {
+          elms[0].classList.remove('active');
+        }
+        srcElement.classList.add('active');
+      });
+      if (style.title === this.defaultStyle) {
+        styleElement.classList.add('active');
+      }
+      this.mapStyleContainer.appendChild(styleElement);
+    }
+    this.styleButton.classList.add('mapboxgl-ctrl-icon');
+    this.styleButton.classList.add('mapboxgl-style-switcher');
+    this.styleButton.addEventListener('click', () => {
+      this.styleButton.style.display = 'none';
+      this.mapStyleContainer.style.display = 'block';
+    });
+    document.addEventListener('click', this.onDocumentClick);
+    this.controlContainer.appendChild(this.styleButton);
+    this.controlContainer.appendChild(this.mapStyleContainer);
+    return this.controlContainer;
+  }
+
+  onRemove() {
+    if (!this.controlContainer || !this.controlContainer.parentNode || !this.map || !this.styleButton) {
+      return;
+    }
+    this.styleButton.removeEventListener('click', this.onDocumentClick);
+    this.controlContainer.parentNode.removeChild(this.controlContainer);
+    document.removeEventListener('click', this.onDocumentClick);
+    this.map = undefined;
+  }
+
+  onDocumentClick(event) {
+    if (this.controlContainer && !this.controlContainer.contains(event.target) && this.mapStyleContainer && this.styleButton) {
+      this.mapStyleContainer.style.display = 'none';
+      this.styleButton.style.display = 'block';
+    }
+  }
+}
diff --git a/modern/src/reactHelper.js b/modern/src/reactHelper.js
index 9286c577..b0eb0169 100644
--- a/modern/src/reactHelper.js
+++ b/modern/src/reactHelper.js
@@ -7,10 +7,10 @@ export const usePrevious = value => {
     ref.current = value;
   });
   return ref.current;
-}
+};
 
 export const useEffectAsync = (effect, deps) => {
   useEffect(() => {
     effect();
-  }, deps);
-}
+  }, deps); // eslint-disable-line react-hooks/exhaustive-deps
+};
diff --git a/modern/src/reports/FilterForm.js b/modern/src/reports/FilterForm.js
new file mode 100644
index 00000000..86339d2d
--- /dev/null
+++ b/modern/src/reports/FilterForm.js
@@ -0,0 +1,88 @@
+import React, { useEffect, useState } from 'react';
+import { FormControl, InputLabel, Select, MenuItem, TextField } from '@material-ui/core';
+import t from '../common/localization';
+import { useSelector } from 'react-redux';
+import moment from 'moment';
+
+const FilterForm = ({ deviceId, setDeviceId, from, setFrom, to, setTo }) => {
+  const devices = useSelector(state => Object.values(state.devices.items));
+
+  const [period, setPeriod] = useState('today');
+
+  useEffect(() => {
+    switch (period) {
+      default:
+      case 'today':
+        setFrom(moment().startOf('day'));
+        setTo(moment().endOf('day'));
+        break;
+      case 'yesterday':
+        setFrom(moment().subtract(1, 'day').startOf('day'));
+        setTo(moment().subtract(1, 'day').endOf('day'));
+        break;
+      case 'thisWeek':
+        setFrom(moment().startOf('week'));
+        setTo(moment().endOf('week'));
+        break;
+      case 'previousWeek':
+        setFrom(moment().subtract(1, 'week').startOf('week'));
+        setTo(moment().subtract(1, 'week').endOf('week'));
+        break;
+      case 'thisMonth':
+        setFrom(moment().startOf('month'));
+        setTo(moment().endOf('month'));
+        break;
+      case 'previousMonth':
+        setFrom(moment().subtract(1, 'month').startOf('month'));
+        setTo(moment().subtract(1, 'month').endOf('month'));
+        break;
+    }
+  }, [period, setFrom, setTo]);
+
+  return (
+    <>
+      <FormControl variant='filled' margin='normal' fullWidth>
+        <InputLabel>{t('reportDevice')}</InputLabel>
+        <Select value={deviceId || ''} onChange={e => setDeviceId(e.target.value)}>
+          {devices.map((device) => (
+            <MenuItem key={device.id} value={device.id}>{device.name}</MenuItem>
+          ))}
+        </Select>
+      </FormControl>
+      <FormControl variant='filled' margin='normal' fullWidth>
+        <InputLabel>{t('reportPeriod')}</InputLabel>
+        <Select value={period} onChange={e => setPeriod(e.target.value)}>
+          <MenuItem key='today' value='today'>{t('reportToday')}</MenuItem>
+          <MenuItem key='yesterday' value='yesterday'>{t('reportYesterday')}</MenuItem>
+          <MenuItem key='thisWeek' value='thisWeek'>{t('reportThisWeek')}</MenuItem>
+          <MenuItem key='previousWeek' value='previousWeek'>{t('reportPreviousWeek')}</MenuItem>
+          <MenuItem key='thisMonth' value='thisMonth'>{t('reportThisMonth')}</MenuItem>
+          <MenuItem key='previousMonth' value='previousMonth'>{t('reportPreviousMonth')}</MenuItem>
+          <MenuItem key='custom' value='custom'>{t('reportCustom')}</MenuItem>
+        </Select>
+      </FormControl>
+      {period === 'custom' &&
+        <TextField
+          margin='normal'
+          variant='filled'
+          label={t('reportFrom')}
+          type='datetime-local'
+          value={from.format(moment.HTML5_FMT.DATETIME_LOCAL)}
+          onChange={e => setFrom(moment(e.target.value, moment.HTML5_FMT.DATETIME_LOCAL))}
+          fullWidth />
+      }
+      {period === 'custom' &&
+        <TextField
+          margin='normal'
+          variant='filled'
+          label={t('reportTo')}
+          type='datetime-local'
+          value={to.format(moment.HTML5_FMT.DATETIME_LOCAL)}
+          onChange={(e) => setTo(moment(e.target.value, moment.HTML5_FMT.DATETIME_LOCAL))}
+          fullWidth />
+      }
+    </>
+  );
+}
+
+export default FilterForm;
diff --git a/modern/src/reports/ReplayPage.js b/modern/src/reports/ReplayPage.js
new file mode 100644
index 00000000..6b84d4d9
--- /dev/null
+++ b/modern/src/reports/ReplayPage.js
@@ -0,0 +1,121 @@
+import React, { useState } from 'react';
+import { Accordion, AccordionDetails, AccordionSummary, Button, Container, FormControl, makeStyles, Paper, Slider, Tooltip, Typography } from '@material-ui/core';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
+import MainToolbar from '../MainToolbar';
+import Map from '../map/Map';
+import t from '../common/localization';
+import FilterForm from './FilterForm';
+import ReplayPathMap from '../map/ReplayPathMap';
+import PositionsMap from '../map/PositionsMap';
+import { formatPosition } from '../common/formatter';
+
+const useStyles = makeStyles(theme => ({
+  root: {
+    height: '100%',
+    display: 'flex',
+    flexDirection: 'column',
+  },
+  controlPanel: {
+    position: 'absolute',
+    bottom: theme.spacing(5),
+    left: '50%',
+    transform: 'translateX(-50%)',
+  },
+  controlContent: {
+    padding: theme.spacing(2),
+    marginBottom: theme.spacing(2),
+  },
+  configForm: {
+    display: 'flex',
+    flexDirection: 'column',
+  },
+}));
+
+const TimeLabel = ({ children, open, value }) => {
+  return (
+    <Tooltip open={open} enterTouchDelay={0} placement="top" title={value}>
+      {children}
+    </Tooltip>
+  );
+};
+
+const ReplayPage = () => {
+  const classes = useStyles();
+
+  const [expanded, setExpanded] = useState(true);
+
+  const [deviceId, setDeviceId] = useState();
+  const [from, setFrom] = useState();
+  const [to, setTo] = useState();
+
+  const [positions, setPositions] = useState([]);
+
+  const [index, setIndex] = useState(0);
+
+  const handleShow = async () => {
+    const query = new URLSearchParams({
+      deviceId,
+      from: from.toISOString(),
+      to: to.toISOString(),
+    });
+    const response = await fetch(`/api/positions?${query.toString()}`, { headers: { 'Accept': 'application/json' } });
+    if (response.ok) {
+      setIndex(0);
+      setPositions(await response.json());
+      setExpanded(false);
+    }
+  };
+
+  return (
+    <div className={classes.root}>
+      <MainToolbar />
+      <Map>
+        <ReplayPathMap positions={positions} />
+        {index < positions.length &&
+          <PositionsMap positions={[positions[index]]} />
+        }
+      </Map>
+      <Container maxWidth="sm" className={classes.controlPanel}>
+        {!!positions.length &&
+          <Paper className={classes.controlContent}>
+            <Slider
+              max={positions.length - 1}
+              step={null}
+              marks={positions.map((_, index) => ({ value: index }))}
+              value={index}
+              onChange={(_, index) => setIndex(index)}
+              valueLabelDisplay="auto"
+              valueLabelFormat={i => i < positions.length ? formatPosition(positions[i], 'fixTime') : ''}
+              ValueLabelComponent={TimeLabel}
+              />
+          </Paper>
+        }
+        <div>
+          <Accordion expanded={expanded} onChange={() => setExpanded(!expanded)}>
+            <AccordionSummary expandIcon={<ExpandMoreIcon />}>
+              <Typography align='center'>
+                {t('reportConfigure')}
+              </Typography>
+            </AccordionSummary>
+            <AccordionDetails className={classes.configForm}>
+              <FilterForm
+                deviceId={deviceId}
+                setDeviceId={setDeviceId}
+                from={from}
+                setFrom={setFrom}
+                to={to}
+                setTo={setTo} />
+              <FormControl margin='normal' fullWidth>
+                <Button type='button' color='primary' variant='contained' disabled={!deviceId} onClick={handleShow}>
+                  {t('reportShow')}
+                </Button>
+              </FormControl>
+            </AccordionDetails>
+          </Accordion>
+        </div>
+      </Container>
+    </div>
+  );
+}
+
+export default ReplayPage;