Use modified airbnb eslint

10 files changed, 326 insertions, 293 deletions

diff --git a/modern/src/settings/ComputedAttributePage.js b/modern/src/settings/ComputedAttributePage.js
index 73759fa..fea613a 100644
--- a/modern/src/settings/ComputedAttributePage.js
+++ b/modern/src/settings/ComputedAttributePage.js
@@ -1,19 +1,19 @@
 import React, { useState } from 'react';
-import { Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography,  FormControl, InputLabel, MenuItem, Select, TextField } from "@material-ui/core";
+import {
+  Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography, FormControl, InputLabel, MenuItem, Select, TextField,
+} from '@material-ui/core';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import t from '../common/localization';
 import EditItemView from '../EditItemView';
-import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import positionAttributes from '../attributes/positionAttributes';
 
-
 const useStyles = makeStyles(() => ({
   details: {
     flexDirection: 'column',
   },
 }));
 
-const ComputedAttributePage =() => {
-
+const ComputedAttributePage = () => {
   const classes = useStyles();
   const [item, setItem] = useState();
   const [key, setKey] = useState();
@@ -24,20 +24,21 @@ const ComputedAttributePage =() => {
     type: value.type,
   }));
 
-  const handleChange = event => {
+  const handleChange = (event) => {
     const newValue = event.target.value;
     setKey(newValue);
     const positionAttribute = positionAttributes[newValue];
-    if(positionAttribute && positionAttribute.type) {
-      setItem({...item, attribute: newValue, type: positionAttribute.type});
+    if (positionAttribute && positionAttribute.type) {
+      setItem({ ...item, attribute: newValue, type: positionAttribute.type });
     } else {
-      setItem({...item, attribute: newValue});
+      setItem({ ...item, attribute: newValue });
     }
-  }
+  };
 
   return (
     <EditItemView endpoint="/attributes/computed" item={item} setItem={setItem}>
-      {item &&
+      {item
+        && (
         <Accordion defaultExpanded>
           <AccordionSummary expandIcon={<ExpandMoreIcon />}>
             <Typography variant="subtitle1">
@@ -48,46 +49,51 @@ const ComputedAttributePage =() => {
             <TextField
               margin="normal"
               value={item.description || ''}
-              onChange={event => setItem({...item, description: event.target.value})}
+              onChange={(event) => setItem({ ...item, description: event.target.value })}
               label={t('sharedDescription')}
-              variant="filled" />
+              variant="filled"
+            />
             <FormControl variant="filled" margin="normal" fullWidth>
               <InputLabel>{t('sharedAttribute')}</InputLabel>
-              <Select 
-                value={item.attribute || ''} 
-                onChange={handleChange}>
+              <Select
+                value={item.attribute || ''}
+                onChange={handleChange}
+              >
                 {options.map((option) => (
                   <MenuItem key={option.key} value={option.key}>{option.name}</MenuItem>
                 ))}
               </Select>
-            </FormControl>            
+            </FormControl>
             <TextField
               margin="normal"
               value={item.expression || ''}
-              onChange={event => setItem({...item, expression: event.target.value})}
+              onChange={(event) => setItem({ ...item, expression: event.target.value })}
               label={t('sharedExpression')}
               multiline
               rows={4}
-              variant="filled" />
+              variant="filled"
+            />
             <FormControl
               variant="filled"
               margin="normal"
               fullWidth
-              disabled={key in positionAttributes}>
+              disabled={key in positionAttributes}
+            >
               <InputLabel>{t('sharedType')}</InputLabel>
               <Select
                 value={item.type || ''}
-                onChange={event => setItem({...item, type: event.target.value})}>
-                <MenuItem value={'string'}>{t('sharedTypeString')}</MenuItem>
-                <MenuItem value={'number'}>{t('sharedTypeNumber')}</MenuItem>
-                <MenuItem value={'boolean'}>{t('sharedTypeBoolean')}</MenuItem>
+                onChange={(event) => setItem({ ...item, type: event.target.value })}
+              >
+                <MenuItem value="string">{t('sharedTypeString')}</MenuItem>
+                <MenuItem value="number">{t('sharedTypeNumber')}</MenuItem>
+                <MenuItem value="boolean">{t('sharedTypeBoolean')}</MenuItem>
               </Select>
             </FormControl>
           </AccordionDetails>
         </Accordion>
-      }
+        )}
     </EditItemView>
-  )
-}
+  );
+};
 
 export default ComputedAttributePage;
diff --git a/modern/src/settings/ComputedAttributesPage.js b/modern/src/settings/ComputedAttributesPage.js
index 1a6feab..f555259 100644
--- a/modern/src/settings/ComputedAttributesPage.js
+++ b/modern/src/settings/ComputedAttributesPage.js
@@ -1,13 +1,15 @@
 import React, { useState } from 'react';
-import MainToolbar from '../MainToolbar';
-import { TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton } from '@material-ui/core';
+import {
+  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
+} from '@material-ui/core';
 import MoreVertIcon from '@material-ui/icons/MoreVert';
 import { useSelector } from 'react-redux';
+import MainToolbar from '../MainToolbar';
 import t from '../common/localization';
 import { useEffectAsync } from '../reactHelper';
 import EditCollectionView from '../EditCollectionView';
 
-const useStyles = makeStyles(theme => ({
+const useStyles = makeStyles((theme) => ({
   columnAction: {
     width: theme.spacing(1),
     padding: theme.spacing(0, 1),
@@ -18,7 +20,7 @@ const ComputedAttributeView = ({ updateTimestamp, onMenuClick }) => {
   const classes = useStyles();
 
   const [items, setItems] = useState([]);
-  const adminEnabled = useSelector(state => state.session.user && state.session.user.administrator);
+  const adminEnabled = useSelector((state) => state.session.user && state.session.user.administrator);
 
   useEffectAsync(async () => {
     const response = await fetch('/api/attributes/computed');
@@ -29,45 +31,44 @@ const ComputedAttributeView = ({ updateTimestamp, onMenuClick }) => {
 
   return (
     <TableContainer>
-    <Table>
-      <TableHead>
-        <TableRow>
-          {adminEnabled && <TableCell className={classes.columnAction} />}
-          <TableCell>{t('sharedDescription')}</TableCell>
-          <TableCell>{t('sharedAttribute')}</TableCell>
-          <TableCell>{t('sharedExpression')}</TableCell>
-          <TableCell>{t('sharedType')}</TableCell>
-        </TableRow>
-      </TableHead>
-      <TableBody>
-        {items.map((item) => (
-          <TableRow key={item.id}>
-            {adminEnabled &&
+      <Table>
+        <TableHead>
+          <TableRow>
+            {adminEnabled && <TableCell className={classes.columnAction} />}
+            <TableCell>{t('sharedDescription')}</TableCell>
+            <TableCell>{t('sharedAttribute')}</TableCell>
+            <TableCell>{t('sharedExpression')}</TableCell>
+            <TableCell>{t('sharedType')}</TableCell>
+          </TableRow>
+        </TableHead>
+        <TableBody>
+          {items.map((item) => (
+            <TableRow key={item.id}>
+              {adminEnabled
+              && (
               <TableCell className={classes.columnAction} padding="none">
                 <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
                   <MoreVertIcon />
                 </IconButton>
               </TableCell>
-            }
-            <TableCell>{item.description}</TableCell>
-            <TableCell>{item.attribute}</TableCell>
-            <TableCell>{item.expression}</TableCell>
-            <TableCell>{item.type}</TableCell>            
-          </TableRow>
-        ))}
-      </TableBody>
-    </Table>
+              )}
+              <TableCell>{item.description}</TableCell>
+              <TableCell>{item.attribute}</TableCell>
+              <TableCell>{item.expression}</TableCell>
+              <TableCell>{item.type}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
     </TableContainer>
   );
-}
+};
 
-const ComputedAttributesPage = () => {
-  return (
-    <>
-      <MainToolbar />
-      <EditCollectionView content={ComputedAttributeView} editPath="/settings/attribute" endpoint="attributes/computed" />
-    </>
-  );
-}
+const ComputedAttributesPage = () => (
+  <>
+    <MainToolbar />
+    <EditCollectionView content={ComputedAttributeView} editPath="/settings/attribute" endpoint="attributes/computed" />
+  </>
+);
 
 export default ComputedAttributesPage;
diff --git a/modern/src/settings/DriverPage.js b/modern/src/settings/DriverPage.js
index 86feab8..01400c5 100644
--- a/modern/src/settings/DriverPage.js
+++ b/modern/src/settings/DriverPage.js
@@ -1,9 +1,11 @@
 import React, { useState } from 'react';
 import TextField from '@material-ui/core/TextField';
+import {
+  Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography,
+} from '@material-ui/core';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import t from '../common/localization';
 import EditItemView from '../EditItemView';
-import { Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography } from '@material-ui/core';
-import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import EditAttributesView from '../attributes/EditAttributesView';
 
 const useStyles = makeStyles(() => ({
@@ -19,7 +21,8 @@ const DriverPage = () => {
 
   return (
     <EditItemView endpoint="drivers" item={item} setItem={setItem}>
-      {item &&
+      {item
+        && (
         <>
           <Accordion defaultExpanded>
             <AccordionSummary expandIcon={<ExpandMoreIcon />}>
@@ -31,15 +34,17 @@ const DriverPage = () => {
               <TextField
                 margin="normal"
                 value={item.name || ''}
-                onChange={event => setItem({...item, name: event.target.value})}
+                onChange={(event) => setItem({ ...item, name: event.target.value })}
                 label={t('sharedName')}
-                variant="filled" />
+                variant="filled"
+              />
               <TextField
                 margin="normal"
                 value={item.uniqueId || ''}
-                onChange={event => setItem({...item, uniqueId: event.target.value})}
+                onChange={(event) => setItem({ ...item, uniqueId: event.target.value })}
                 label={t('deviceIdentifier')}
-                variant="filled" />                
+                variant="filled"
+              />
             </AccordionDetails>
           </Accordion>
           <Accordion>
@@ -51,15 +56,15 @@ const DriverPage = () => {
             <AccordionDetails className={classes.details}>
               <EditAttributesView
                 attributes={item.attributes}
-                setAttributes={attributes => setItem({...item, attributes})}
+                setAttributes={(attributes) => setItem({ ...item, attributes })}
                 definitions={{}}
-                />
+              />
             </AccordionDetails>
           </Accordion>
         </>
-      }
+        )}
     </EditItemView>
   );
-}
+};
 
 export default DriverPage;
diff --git a/modern/src/settings/DriversPage.js b/modern/src/settings/DriversPage.js
index 957e225..36fc12d 100644
--- a/modern/src/settings/DriversPage.js
+++ b/modern/src/settings/DriversPage.js
@@ -1,12 +1,14 @@
 import React, { useState } from 'react';
-import MainToolbar from '../MainToolbar';
-import { TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton } from '@material-ui/core';
+import {
+  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
+} from '@material-ui/core';
 import MoreVertIcon from '@material-ui/icons/MoreVert';
+import MainToolbar from '../MainToolbar';
 import t from '../common/localization';
 import { useEffectAsync } from '../reactHelper';
 import EditCollectionView from '../EditCollectionView';
 
-const useStyles = makeStyles(theme => ({
+const useStyles = makeStyles((theme) => ({
   columnAction: {
     width: theme.spacing(1),
     padding: theme.spacing(0, 1),
@@ -27,39 +29,37 @@ const DriversView = ({ updateTimestamp, onMenuClick }) => {
 
   return (
     <TableContainer>
-    <Table>
-      <TableHead>
-        <TableRow>
-          <TableCell className={classes.columnAction} />
-          <TableCell>{t('sharedName')}</TableCell>
-          <TableCell>{t('deviceIdentifier')}</TableCell>
-        </TableRow>
-      </TableHead>
-      <TableBody>
-        {items.map((item) => (
-          <TableRow key={item.id}>
-            <TableCell className={classes.columnAction} padding="none">
-              <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
-                <MoreVertIcon />
-              </IconButton>
-            </TableCell>
-            <TableCell>{item.name}</TableCell>
-            <TableCell>{item.uniqueId}</TableCell>
+      <Table>
+        <TableHead>
+          <TableRow>
+            <TableCell className={classes.columnAction} />
+            <TableCell>{t('sharedName')}</TableCell>
+            <TableCell>{t('deviceIdentifier')}</TableCell>
           </TableRow>
-        ))}
-      </TableBody>
-    </Table>
+        </TableHead>
+        <TableBody>
+          {items.map((item) => (
+            <TableRow key={item.id}>
+              <TableCell className={classes.columnAction} padding="none">
+                <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
+                  <MoreVertIcon />
+                </IconButton>
+              </TableCell>
+              <TableCell>{item.name}</TableCell>
+              <TableCell>{item.uniqueId}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
     </TableContainer>
   );
-}
+};
 
-const DriversPage = () => {
-  return (
-    <>
-      <MainToolbar />
-      <EditCollectionView content={DriversView} editPath="/settings/driver" endpoint="drivers" />
-    </>
-  );
-}
+const DriversPage = () => (
+  <>
+    <MainToolbar />
+    <EditCollectionView content={DriversView} editPath="/settings/driver" endpoint="drivers" />
+  </>
+);
 
 export default DriversPage;
diff --git a/modern/src/settings/GroupPage.js b/modern/src/settings/GroupPage.js
index b9fa871..f9af0f8 100644
--- a/modern/src/settings/GroupPage.js
+++ b/modern/src/settings/GroupPage.js
@@ -1,10 +1,12 @@
 import React, { useState } from 'react';
 import TextField from '@material-ui/core/TextField';
 
+import {
+  Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography,
+} from '@material-ui/core';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import t from '../common/localization';
 import EditItemView from '../EditItemView';
-import { Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography } from '@material-ui/core';
-import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import EditAttributesView from '../attributes/EditAttributesView';
 import deviceAttributes from '../attributes/deviceAttributes';
 import SelectField from '../form/SelectField';
@@ -22,7 +24,8 @@ const GroupPage = () => {
 
   return (
     <EditItemView endpoint="groups" item={item} setItem={setItem}>
-      {item &&
+      {item
+        && (
         <>
           <Accordion defaultExpanded>
             <AccordionSummary expandIcon={<ExpandMoreIcon />}>
@@ -34,9 +37,10 @@ const GroupPage = () => {
               <TextField
                 margin="normal"
                 value={item.name || ''}
-                onChange={event => setItem({...item, name: event.target.value})}
+                onChange={(event) => setItem({ ...item, name: event.target.value })}
                 label={t('sharedName')}
-                variant="filled" />
+                variant="filled"
+              />
             </AccordionDetails>
           </Accordion>
           <Accordion>
@@ -49,10 +53,11 @@ const GroupPage = () => {
               <SelectField
                 margin="normal"
                 value={item.groupId || 0}
-                onChange={event => setItem({...item, groupId: Number(event.target.value)})}
+                onChange={(event) => setItem({ ...item, groupId: Number(event.target.value) })}
                 endpoint="/api/groups"
                 label={t('groupParent')}
-                variant="filled" />
+                variant="filled"
+              />
             </AccordionDetails>
           </Accordion>
           <Accordion>
@@ -64,15 +69,15 @@ const GroupPage = () => {
             <AccordionDetails className={classes.details}>
               <EditAttributesView
                 attributes={item.attributes}
-                setAttributes={attributes => setItem({...item, attributes})}
+                setAttributes={(attributes) => setItem({ ...item, attributes })}
                 definitions={deviceAttributes}
-                />
+              />
             </AccordionDetails>
           </Accordion>
         </>
-      }
+        )}
     </EditItemView>
   );
-}
+};
 
 export default GroupPage;
diff --git a/modern/src/settings/GroupsPage.js b/modern/src/settings/GroupsPage.js
index e274062..d592184 100644
--- a/modern/src/settings/GroupsPage.js
+++ b/modern/src/settings/GroupsPage.js
@@ -1,12 +1,14 @@
 import React, { useState } from 'react';
-import MainToolbar from '../MainToolbar';
-import { TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton } from '@material-ui/core';
+import {
+  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
+} from '@material-ui/core';
 import MoreVertIcon from '@material-ui/icons/MoreVert';
+import MainToolbar from '../MainToolbar';
 import t from '../common/localization';
 import { useEffectAsync } from '../reactHelper';
 import EditCollectionView from '../EditCollectionView';
 
-const useStyles = makeStyles(theme => ({
+const useStyles = makeStyles((theme) => ({
   columnAction: {
     width: theme.spacing(1),
     padding: theme.spacing(0, 1),
@@ -27,37 +29,35 @@ const GroupsView = ({ updateTimestamp, onMenuClick }) => {
 
   return (
     <TableContainer>
-    <Table>
-      <TableHead>
-        <TableRow>
-          <TableCell className={classes.columnAction} />
-          <TableCell>{t('sharedName')}</TableCell>
-        </TableRow>
-      </TableHead>
-      <TableBody>
-        {items.map((item) => (
-          <TableRow key={item.id}>
-            <TableCell className={classes.columnAction} padding="none">
-              <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
-                <MoreVertIcon />
-              </IconButton>
-            </TableCell>
-            <TableCell>{item.name}</TableCell>
+      <Table>
+        <TableHead>
+          <TableRow>
+            <TableCell className={classes.columnAction} />
+            <TableCell>{t('sharedName')}</TableCell>
           </TableRow>
-        ))}
-      </TableBody>
-    </Table>
+        </TableHead>
+        <TableBody>
+          {items.map((item) => (
+            <TableRow key={item.id}>
+              <TableCell className={classes.columnAction} padding="none">
+                <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
+                  <MoreVertIcon />
+                </IconButton>
+              </TableCell>
+              <TableCell>{item.name}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
     </TableContainer>
   );
-}
+};
 
-const GroupsPage = () => {
-  return (
-    <>
-      <MainToolbar />
-      <EditCollectionView content={GroupsView} editPath="/settings/group" endpoint="groups" />
-    </>
-  );
-}
+const GroupsPage = () => (
+  <>
+    <MainToolbar />
+    <EditCollectionView content={GroupsView} editPath="/settings/group" endpoint="groups" />
+  </>
+);
 
 export default GroupsPage;
diff --git a/modern/src/settings/MaintenancePage.js b/modern/src/settings/MaintenancePage.js
index 3b4fde5..89ebaa1 100644
--- a/modern/src/settings/MaintenancePage.js
+++ b/modern/src/settings/MaintenancePage.js
@@ -1,14 +1,18 @@
 import React, { useState } from 'react';
+import {
+  Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography, TextField, FormControl, InputLabel, MenuItem, Select,
+} from '@material-ui/core';
+import InputAdornment from '@material-ui/core/InputAdornment';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import t from '../common/localization';
 import { prefixString } from '../common/stringUtils';
 import EditItemView from '../EditItemView';
-import { Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography, TextField, FormControl, InputLabel, MenuItem, Select, } from '@material-ui/core';
-import InputAdornment from '@material-ui/core/InputAdornment';
-import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import EditAttributesView from '../attributes/EditAttributesView';
 import positionAttributes from '../attributes/positionAttributes';
 import { useAttributePreference } from '../common/preferences';
-import { speedFromKnots, speedToKnots, distanceFromMeters, distanceToMeters } from '../common/converter';
+import {
+  speedFromKnots, speedToKnots, distanceFromMeters, distanceToMeters,
+} from '../common/converter';
 
 const useStyles = makeStyles(() => ({
   details: {
@@ -17,46 +21,46 @@ const useStyles = makeStyles(() => ({
 }));
 
 const MaintenancePage = () => {
-  
   const classes = useStyles();
   const [item, setItem] = useState();
-  const [labels, setLabels] = useState({start: '', period: ''});
+  const [labels, setLabels] = useState({ start: '', period: '' });
 
   const speedUnit = useAttributePreference('speedUnit');
   const distanceUnit = useAttributePreference('distanceUnit');
 
   const convertToList = (attributes) => {
-    let otherList = [];
-    for (const key in attributes) {
+    const otherList = [];
+    Object.keys(attributes).forEach((key) => {
       const value = attributes[key];
       if (value.type === 'number') {
-        otherList.push({key, name: value.name, type: value.type});
+        otherList.push({ key, name: value.name, type: value.type });
       }
-    }
+    });
     return otherList;
-  }
+  };
 
-  const onMaintenanceTypeChange = event => {
+  const onMaintenanceTypeChange = (event) => {
     const newValue = event.target.value;
-    setItem({ ...item, type: newValue, start: 0, period: 0 });
+    setItem({
+      ...item, type: newValue, start: 0, period: 0,
+    });
 
     const attribute = positionAttributes[newValue];
     if (attribute && attribute.dataType) {
       switch (attribute.dataType) {
         case 'distance':
-          setLabels({ ...labels, start: t(prefixString('shared', distanceUnit)), period: t(prefixString('shared', distanceUnit))});
+          setLabels({ ...labels, start: t(prefixString('shared', distanceUnit)), period: t(prefixString('shared', distanceUnit)) });
           break;
         case 'speed':
-          setLabels({ ...labels, start: t(prefixString('shared', speedUnit)), period: t(prefixString('shared', speedUnit))});
+          setLabels({ ...labels, start: t(prefixString('shared', speedUnit)), period: t(prefixString('shared', speedUnit)) });
           break;
         default:
           break;
       }
     }
-  }
-
-  const rawToValue = value => {
+  };
 
+  const rawToValue = (value) => {
     const attribute = positionAttributes[item.type];
     if (attribute && attribute.dataType) {
       switch (attribute.dataType) {
@@ -69,10 +73,9 @@ const MaintenancePage = () => {
       }
     }
     return value;
-  }
-
-  const valueToRaw = value => {
+  };
 
+  const valueToRaw = (value) => {
     const attribute = positionAttributes[item.type];
     if (attribute && attribute.dataType) {
       switch (attribute.dataType) {
@@ -85,11 +88,12 @@ const MaintenancePage = () => {
       }
     }
     return value;
-  }
+  };
 
   return (
     <EditItemView endpoint="maintenance" item={item} setItem={setItem}>
-      {item &&
+      {item
+        && (
         <>
           <Accordion defaultExpanded>
             <AccordionSummary expandIcon={<ExpandMoreIcon />}>
@@ -101,39 +105,43 @@ const MaintenancePage = () => {
               <TextField
                 margin="normal"
                 value={item.name || ''}
-                onChange={event => setItem({...item, name: event.target.value})}
+                onChange={(event) => setItem({ ...item, name: event.target.value })}
                 label={t('sharedName')}
-                variant="filled" />
+                variant="filled"
+              />
               <FormControl variant="filled" margin="normal" fullWidth>
                 <InputLabel>{t('sharedType')}</InputLabel>
-                <Select 
-                  value={item.type || ''} 
-                  onChange={onMaintenanceTypeChange}>
-                    {convertToList(positionAttributes).map(({ key, name })=>(
-                      <MenuItem key={key} value={key}>{name}</MenuItem>
-                    ))}
+                <Select
+                  value={item.type || ''}
+                  onChange={onMaintenanceTypeChange}
+                >
+                  {convertToList(positionAttributes).map(({ key, name }) => (
+                    <MenuItem key={key} value={key}>{name}</MenuItem>
+                  ))}
                 </Select>
-              </FormControl>            
+              </FormControl>
               <TextField
                 margin="normal"
                 type="number"
                 value={rawToValue(item.start) || ''}
-                onChange={event => setItem({...item, start: valueToRaw(event.target.value)})}
+                onChange={(event) => setItem({ ...item, start: valueToRaw(event.target.value) })}
                 label={t('maintenanceStart')}
                 variant="filled"
                 InputProps={{
-                endAdornment: <InputAdornment position="start">{labels.start}</InputAdornment>,
-                }} />
+                  endAdornment: <InputAdornment position="start">{labels.start}</InputAdornment>,
+                }}
+              />
               <TextField
                 margin="normal"
                 type="number"
                 value={rawToValue(item.period) || ''}
-                onChange={event => setItem({...item, period: valueToRaw(event.target.value)})}
+                onChange={(event) => setItem({ ...item, period: valueToRaw(event.target.value) })}
                 label={t('maintenancePeriod')}
                 variant="filled"
                 InputProps={{
-                endAdornment: <InputAdornment position="start">{labels.period}</InputAdornment>,
-                }} />                              
+                  endAdornment: <InputAdornment position="start">{labels.period}</InputAdornment>,
+                }}
+              />
             </AccordionDetails>
           </Accordion>
           <Accordion>
@@ -145,15 +153,15 @@ const MaintenancePage = () => {
             <AccordionDetails className={classes.details}>
               <EditAttributesView
                 attributes={item.attributes}
-                setAttributes={attributes => setItem({...item, attributes})}
+                setAttributes={(attributes) => setItem({ ...item, attributes })}
                 definitions={{}}
-                />
+              />
             </AccordionDetails>
-          </Accordion>          
+          </Accordion>
         </>
-      }
+        )}
     </EditItemView>
   );
-}
+};
 
 export default MaintenancePage;
diff --git a/modern/src/settings/MaintenancesPage.js b/modern/src/settings/MaintenancesPage.js
index 7ba4bd2..e598bc9 100644
--- a/modern/src/settings/MaintenancesPage.js
+++ b/modern/src/settings/MaintenancesPage.js
@@ -1,7 +1,9 @@
 import React, { useState } from 'react';
-import MainToolbar from '../MainToolbar';
-import { TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton } from '@material-ui/core';
+import {
+  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
+} from '@material-ui/core';
 import MoreVertIcon from '@material-ui/icons/MoreVert';
+import MainToolbar from '../MainToolbar';
 import t from '../common/localization';
 import { useEffectAsync } from '../reactHelper';
 import EditCollectionView from '../EditCollectionView';
@@ -10,7 +12,7 @@ import positionAttributes from '../attributes/positionAttributes';
 import { formatDistance, formatSpeed } from '../common/formatter';
 import { useAttributePreference } from '../common/preferences';
 
-const useStyles = makeStyles(theme => ({
+const useStyles = makeStyles((theme) => ({
   columnAction: {
     width: theme.spacing(1),
     padding: theme.spacing(0, 1),
@@ -37,7 +39,7 @@ const MaintenancesView = ({ updateTimestamp, onMenuClick }) => {
       switch (attribute.dataType) {
         case 'speed':
           return formatSpeed(value, speedUnit);
-        case 'distance':        
+        case 'distance':
           return formatDistance(value, distanceUnit);
         default:
           return value;
@@ -45,47 +47,45 @@ const MaintenancesView = ({ updateTimestamp, onMenuClick }) => {
     }
 
     return value;
-  }
+  };
 
   return (
     <TableContainer>
-    <Table>
-      <TableHead>
-        <TableRow>
-          <TableCell className={classes.columnAction} />
-          <TableCell>{t('sharedName')}</TableCell>
-          <TableCell>{t('sharedType')}</TableCell>
-          <TableCell>{t('maintenanceStart')}</TableCell>
-          <TableCell>{t('maintenancePeriod')}</TableCell>
-        </TableRow>
-      </TableHead>
-      <TableBody>
-        {items.map(item => (
-          <TableRow key={item.id}>
-            <TableCell className={classes.columnAction} padding="none">
-              <IconButton onClick={event => onMenuClick(event.currentTarget, item.id)}>
-                <MoreVertIcon />
-              </IconButton>
-            </TableCell>
-            <TableCell>{item.name}</TableCell>
-            <TableCell>{item.type}</TableCell>
-            <TableCell>{convertAttribute(item.type, item.start)}</TableCell>
-            <TableCell>{convertAttribute(item.type, item.period)}</TableCell>
+      <Table>
+        <TableHead>
+          <TableRow>
+            <TableCell className={classes.columnAction} />
+            <TableCell>{t('sharedName')}</TableCell>
+            <TableCell>{t('sharedType')}</TableCell>
+            <TableCell>{t('maintenanceStart')}</TableCell>
+            <TableCell>{t('maintenancePeriod')}</TableCell>
           </TableRow>
-        ))}
-      </TableBody>
-    </Table>
+        </TableHead>
+        <TableBody>
+          {items.map((item) => (
+            <TableRow key={item.id}>
+              <TableCell className={classes.columnAction} padding="none">
+                <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
+                  <MoreVertIcon />
+                </IconButton>
+              </TableCell>
+              <TableCell>{item.name}</TableCell>
+              <TableCell>{item.type}</TableCell>
+              <TableCell>{convertAttribute(item.type, item.start)}</TableCell>
+              <TableCell>{convertAttribute(item.type, item.period)}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
     </TableContainer>
   );
-}
+};
 
-const MaintenacesPage = () => {
-  return (
-    <>
-      <MainToolbar />
-      <EditCollectionView content={MaintenancesView} editPath="/settings/maintenance" endpoint="maintenance" />
-    </>
-  );
-}
+const MaintenacesPage = () => (
+  <>
+    <MainToolbar />
+    <EditCollectionView content={MaintenancesView} editPath="/settings/maintenance" endpoint="maintenance" />
+  </>
+);
 
 export default MaintenacesPage;
diff --git a/modern/src/settings/NotificationPage.js b/modern/src/settings/NotificationPage.js
index 33904e7..11c427f 100644
--- a/modern/src/settings/NotificationPage.js
+++ b/modern/src/settings/NotificationPage.js
@@ -1,9 +1,11 @@
 import React, { useState } from 'react';
 
+import {
+  Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography, FormControlLabel, Checkbox,
+} from '@material-ui/core';
+import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import t, { findStringKeys } from '../common/localization';
 import EditItemView from '../EditItemView';
-import { Accordion, AccordionSummary, AccordionDetails, makeStyles, Typography, FormControlLabel, Checkbox } from '@material-ui/core';
-import ExpandMoreIcon from '@material-ui/icons/ExpandMore';
 import { prefixString, unprefixString } from '../common/stringUtils';
 import SelectField from '../form/SelectField';
 
@@ -18,14 +20,15 @@ const NotificationPage = () => {
 
   const [item, setItem] = useState();
 
-  const alarms = findStringKeys(it => it.startsWith('alarm')).map(it => ({
+  const alarms = findStringKeys((it) => it.startsWith('alarm')).map((it) => ({
     key: unprefixString('alarm', it),
     name: t(it),
   }));
 
   return (
     <EditItemView endpoint="notifications" item={item} setItem={setItem}>
-      {item &&
+      {item
+        && (
         <>
           <Accordion defaultExpanded>
             <AccordionSummary expandIcon={<ExpandMoreIcon />}>
@@ -38,47 +41,52 @@ const NotificationPage = () => {
                 margin="normal"
                 value={item.type || 'alarm'}
                 emptyValue={null}
-                onChange={e => setItem({...item, type: e.target.value})}
+                onChange={(e) => setItem({ ...item, type: e.target.value })}
                 endpoint="/api/notifications/types"
-                keyGetter={it => it.type}
-                titleGetter={it => t(prefixString('event', it.type))}
+                keyGetter={(it) => it.type}
+                titleGetter={(it) => t(prefixString('event', it.type))}
                 label={t('sharedType')}
-                variant="filled" />
+                variant="filled"
+              />
               <SelectField
                 multiple
                 margin="normal"
                 value={item.notificators ? item.notificators.split(/[, ]+/) : []}
-                onChange={e => setItem({...item, notificators: e.target.value.join()})}
+                onChange={(e) => setItem({ ...item, notificators: e.target.value.join() })}
                 endpoint="/api/notifications/notificators"
-                keyGetter={it => it.type}
-                titleGetter={it => t(prefixString('notificator', it.type))}
+                keyGetter={(it) => it.type}
+                titleGetter={(it) => t(prefixString('notificator', it.type))}
                 label={t('notificationNotificators')}
-                variant="filled" />
-              {(!item.type || item.type === 'alarm') &&
+                variant="filled"
+              />
+              {(!item.type || item.type === 'alarm')
+                && (
                 <SelectField
                   multiple
                   margin="normal"
                   value={item.attributes && item.attributes.alarms ? item.attributes.alarms.split(/[, ]+/) : []}
-                  onChange={e => setItem({...item, attributes: {...item.attributes, alarms: e.target.value.join()}})}
+                  onChange={(e) => setItem({ ...item, attributes: { ...item.attributes, alarms: e.target.value.join() } })}
                   data={alarms}
-                  keyGetter={it => it.key}
+                  keyGetter={(it) => it.key}
                   label={t('sharedAlarms')}
-                  variant="filled" />
-              }
+                  variant="filled"
+                />
+                )}
               <FormControlLabel
-                control={
+                control={(
                   <Checkbox
                     checked={item.always}
-                    onChange={event => setItem({...item, always: event.target.checked})}
-                    />
-                }
-                label={t('notificationAlways')} />
+                    onChange={(event) => setItem({ ...item, always: event.target.checked })}
+                  />
+                )}
+                label={t('notificationAlways')}
+              />
             </AccordionDetails>
           </Accordion>
         </>
-      }
+        )}
     </EditItemView>
   );
-}
+};
 
 export default NotificationPage;
diff --git a/modern/src/settings/NotificationsPage.js b/modern/src/settings/NotificationsPage.js
index 15da0de..4e05292 100644
--- a/modern/src/settings/NotificationsPage.js
+++ b/modern/src/settings/NotificationsPage.js
@@ -1,14 +1,16 @@
 import React, { useState } from 'react';
-import MainToolbar from '../MainToolbar';
-import { TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton } from '@material-ui/core';
+import {
+  TableContainer, Table, TableRow, TableCell, TableHead, TableBody, makeStyles, IconButton,
+} from '@material-ui/core';
 import MoreVertIcon from '@material-ui/icons/MoreVert';
+import MainToolbar from '../MainToolbar';
 import t from '../common/localization';
 import { useEffectAsync } from '../reactHelper';
 import EditCollectionView from '../EditCollectionView';
 import { prefixString } from '../common/stringUtils';
 import { formatBoolean } from '../common/formatter';
 
-const useStyles = makeStyles(theme => ({
+const useStyles = makeStyles((theme) => ({
   columnAction: {
     width: theme.spacing(1),
     padding: theme.spacing(0, 1),
@@ -32,7 +34,7 @@ const NotificationsView = ({ updateTimestamp, onMenuClick }) => {
       return value
         .split(/[, ]+/)
         .filter(Boolean)
-        .map(it => t(prefixString(prefix, it)))
+        .map((it) => t(prefixString(prefix, it)))
         .join(', ');
     }
     return '';
@@ -40,43 +42,41 @@ const NotificationsView = ({ updateTimestamp, onMenuClick }) => {
 
   return (
     <TableContainer>
-    <Table>
-      <TableHead>
-        <TableRow>
-          <TableCell className={classes.columnAction} />
-          <TableCell>{t('notificationType')}</TableCell>
-          <TableCell>{t('notificationAlways')}</TableCell>
-          <TableCell>{t('sharedAlarms')}</TableCell>
-          <TableCell>{t('notificationNotificators')}</TableCell>
-        </TableRow>
-      </TableHead>
-      <TableBody>
-        {items.map(item => (
-          <TableRow key={item.id}>
-            <TableCell className={classes.columnAction} padding="none">
-              <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
-                <MoreVertIcon />
-              </IconButton>
-            </TableCell>
-            <TableCell>{t(prefixString('event', item.type))}</TableCell>
-            <TableCell>{formatBoolean(item.always)}</TableCell>
-            <TableCell>{formatList('alarm', item.attributes.alarms)}</TableCell>
-            <TableCell>{formatList('notificator', item.notificators)}</TableCell>
+      <Table>
+        <TableHead>
+          <TableRow>
+            <TableCell className={classes.columnAction} />
+            <TableCell>{t('notificationType')}</TableCell>
+            <TableCell>{t('notificationAlways')}</TableCell>
+            <TableCell>{t('sharedAlarms')}</TableCell>
+            <TableCell>{t('notificationNotificators')}</TableCell>
           </TableRow>
-        ))}
-      </TableBody>
-    </Table>
+        </TableHead>
+        <TableBody>
+          {items.map((item) => (
+            <TableRow key={item.id}>
+              <TableCell className={classes.columnAction} padding="none">
+                <IconButton onClick={(event) => onMenuClick(event.currentTarget, item.id)}>
+                  <MoreVertIcon />
+                </IconButton>
+              </TableCell>
+              <TableCell>{t(prefixString('event', item.type))}</TableCell>
+              <TableCell>{formatBoolean(item.always)}</TableCell>
+              <TableCell>{formatList('alarm', item.attributes.alarms)}</TableCell>
+              <TableCell>{formatList('notificator', item.notificators)}</TableCell>
+            </TableRow>
+          ))}
+        </TableBody>
+      </Table>
     </TableContainer>
   );
-}
+};
 
-const NotificationsPage = () => {
-  return (
-    <>
-      <MainToolbar />
-      <EditCollectionView content={NotificationsView} editPath="/settings/notification" endpoint="notifications" />
-    </>
-  );
-}
+const NotificationsPage = () => (
+  <>
+    <MainToolbar />
+    <EditCollectionView content={NotificationsView} editPath="/settings/notification" endpoint="notifications" />
+  </>
+);
 
 export default NotificationsPage;