Device manager - device details section (#9169)

* add device metadata table

* test devicedetails

* handle missing last activity metadata

* remove debugs

* revert tile style changes

* fuss with indentation

* code formatting

src/components/views/settings/devices/DeviceDetails.tsx

@@ -0,0 +1,79 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import { IMyDevice } from 'matrix-js-sdk/src/matrix';
+
+import { formatDate } from '../../../../DateUtils';
+import { _t } from '../../../../languageHandler';
+import Heading from '../../typography/Heading';
+
+interface Props {
+    device: IMyDevice;
+}
+
+interface MetadataTable {
+    heading?: string;
+    values: { label: string, value?: string | React.ReactNode }[];
+}
+
+const DeviceDetails: React.FC<Props> = ({ device }) => {
+    const metadata: MetadataTable[] = [
+        {
+            values: [
+                { label: _t('Session ID'), value: device.device_id },
+                {
+                    label: _t('Last activity'),
+                    value: device.last_seen_ts && formatDate(new Date(device.last_seen_ts)),
+                },
+            ],
+        },
+        {
+            heading: _t('Device'),
+            values: [
+                { label: _t('IP address'), value: device.last_seen_ip },
+            ],
+        },
+    ];
+    return <div className='mx_DeviceDetails'>
+        <section className='mx_DeviceDetails_section'>
+            <Heading size='h3'>{ device.display_name ?? device.device_id }</Heading>
+        </section>
+        <section className='mx_DeviceDetails_section'>
+            <p className='mx_DeviceDetails_sectionHeading'>{ _t('Session details') }</p>
+            { metadata.map(({ heading, values }, index) => <table
+                className='mxDeviceDetails_metadataTable'
+                key={index}
+            >
+                { heading &&
+                    <thead>
+                        <tr><th>{ heading }</th></tr>
+                    </thead>
+                }
+                <tbody>
+
+                    { values.map(({ label, value }) => <tr key={label}>
+                        <td className='mxDeviceDetails_metadataLabel'>{ label }</td>
+                        <td className='mxDeviceDetails_metadataValue'>{ value }</td>
+                    </tr>) }
+                </tbody>
+            </table>,
+            ) }
+        </section>
+    </div>;
+};
+
+export default DeviceDetails;