From 7446f23b3abc30d7c53f2eaa951742371c071171 Mon Sep 17 00:00:00 2001
From: Herbert Eiselt <herbert.eiselt@highstreet-technologies.com>
Date: Thu, 28 Feb 2019 15:23:42 +0100
Subject: UX extensions

UX Maintenance client and further changes

Change-Id: I7643661d17db5fc3d3f94b58cb42ed0be558c64f
Issue-ID: SDNC-583
Signed-off-by: Herbert Eiselt <herbert.eiselt@highstreet-technologies.com>
---
 .../src/actions/maintenenceActions.ts              |  95 ++++++++++
 .../src/components/editMaintenenceEntryDialog.tsx  | 177 ++++++++++++++++++
 .../src/handlers/maintenanceAppRootHandler.ts      |  27 +++
 .../src/handlers/maintenenceEntriesHandler.ts      |  40 +++++
 sdnr/wt/odlux/apps/maintenanceApp/src/index.html   |  26 +++
 .../src/models/maintenenceEntryType.ts             |  28 +++
 sdnr/wt/odlux/apps/maintenanceApp/src/plugin.tsx   |  27 +++
 .../src/services/maintenenceService.ts             |  82 +++++++++
 .../apps/maintenanceApp/src/utils/timeUtils.ts     |  22 +++
 .../maintenanceApp/src/views/maintenenceView.tsx   | 200 +++++++++++++++++++++
 10 files changed, 724 insertions(+)
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/actions/maintenenceActions.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/components/editMaintenenceEntryDialog.tsx
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenanceAppRootHandler.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenenceEntriesHandler.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/index.html
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/models/maintenenceEntryType.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/plugin.tsx
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/services/maintenenceService.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/utils/timeUtils.ts
 create mode 100644 sdnr/wt/odlux/apps/maintenanceApp/src/views/maintenenceView.tsx

(limited to 'sdnr/wt/odlux/apps/maintenanceApp/src')

diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/actions/maintenenceActions.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/actions/maintenenceActions.ts
new file mode 100644
index 000000000..753c1183f
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/actions/maintenenceActions.ts
@@ -0,0 +1,95 @@
+import { Action } from '../../../../framework/src/flux/action';
+import { Dispatch } from '../../../../framework/src/flux/store';
+import { MaintenenceEntry, spoofSymbol } from '../models/maintenenceEntryType';
+
+import { AddSnackbarNotification } from '../../../../framework/src/actions/snackbarActions';
+import { IApplicationStoreState } from '../../../../framework/src/store/applicationStore';
+
+import { maintenenceService } from '../services/maintenenceService';
+
+export class BaseAction extends Action { }
+
+export class LoadAllMainteneceEntriesAction extends BaseAction { }
+
+export class AllMainteneceEntriesLoadedAction extends BaseAction {
+
+  constructor (public maintenenceEntries: MaintenenceEntry[] | null, error?:string) {
+    super();
+
+  }
+}
+
+
+export const loadAllMainteneceEntriesAsyncAction = (dispatch: Dispatch , getState: () => IApplicationStoreState) => {
+  dispatch(new LoadAllMainteneceEntriesAction());
+  // frist get all entries from the maintenance index
+  maintenenceService.getAllMaintenenceEntries().then(entries => {
+    if (!entries) {
+      dispatch(new AddSnackbarNotification({ message: `Error reading maintenece sessings.`, options: { variant: 'error' } }));
+      return;
+    }
+
+    // combine ell entries from the maintenance index with all networkelements
+    const networkElements = getState().connectApp.mountedNetworkElements;
+    const maintenenceEntries = networkElements.elements.reduce((acc, cur) => {
+      const entry = entries.find(e => e.mountId === cur.mountId);
+      acc.push(entry || {
+        [spoofSymbol]: true,
+        _id: cur.mountId,
+        mountId: cur.mountId,
+        description : "",
+        start: "",
+        end: "",
+        active: false
+      });
+      return acc;
+    }, [] as MaintenenceEntry[]);
+
+    // all all entries from the maintenance index which are not in all networkelements
+    entries.forEach(entry => {
+      if (maintenenceEntries.findIndex(e => e.mountId === entry.mountId) < 0) {
+        maintenenceEntries.push(entry);
+      };
+    });
+
+    dispatch(new AllMainteneceEntriesLoadedAction(maintenenceEntries));
+  }).catch(error => dispatch(new AllMainteneceEntriesLoadedAction(null, error)));
+}
+
+export class UpdateMaintenanceEntry extends BaseAction {
+  constructor(public maintenenceEntry: MaintenenceEntry) {
+    super();
+  }
+}
+
+/** Represents an async thunk action creator to add an element to the maintenence entries. */
+export const addOrUpdateMaintenenceEntryAsyncActionCreator = (entry: MaintenenceEntry) => (dispatch: Dispatch) => {
+  maintenenceService.writeMaintenenceEntry(entry).then(result => {
+    result && window.setTimeout(() => {
+      // dispatch(loadAllMountedNetworkElementsAsync);
+      dispatch(new UpdateMaintenanceEntry(entry));
+      dispatch(new AddSnackbarNotification({ message: `Successfully ${result && result.created ? "created" : "updated"} maintenece sessings for [${entry.mountId}]`, options: { variant: 'success' } }));
+    }, 900);
+  });
+};
+
+/** Represents an async thunk action creator to delete an element from the maintenence entries. */
+export const removeFromMaintenenceEntrysAsyncActionCreator = (entry: MaintenenceEntry) => (dispatch: Dispatch) => {
+  maintenenceService.deleteMaintenenceEntry(entry).then(result => {
+    result && window.setTimeout(() => {
+      //dispatch(loadAllMountedNetworkElementsAsync);
+      dispatch(new UpdateMaintenanceEntry({
+        [spoofSymbol]: true,
+        _id: entry._id,
+        mountId: entry.mountId,
+        description : "",
+        start: "",
+        end: "",
+        active: false
+      }));
+      dispatch(new AddSnackbarNotification({ message: `Successfully removed [${entry.mountId}]`, options: { variant: 'success' } }));
+    }, 900);
+  });
+};
+
+// Hint: since there is no notification of changed required network elements, this code is not aware of changes caused outiside of this browser.
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/components/editMaintenenceEntryDialog.tsx b/sdnr/wt/odlux/apps/maintenanceApp/src/components/editMaintenenceEntryDialog.tsx
new file mode 100644
index 000000000..04f6d2d41
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/components/editMaintenenceEntryDialog.tsx
@@ -0,0 +1,177 @@
+import * as React from 'react';
+
+import Button from '@material-ui/core/Button';
+import TextField from '@material-ui/core/TextField';
+import Dialog from '@material-ui/core/Dialog';
+import DialogActions from '@material-ui/core/DialogActions';
+import DialogContent from '@material-ui/core/DialogContent';
+import DialogContentText from '@material-ui/core/DialogContentText';
+import DialogTitle from '@material-ui/core/DialogTitle';
+
+import { IDispatcher, connect, Connect } from '../../../../framework/src/flux/connect';
+
+import {
+  addOrUpdateMaintenenceEntryAsyncActionCreator,
+  removeFromMaintenenceEntrysAsyncActionCreator
+} from '../actions/maintenenceActions';
+
+import { MaintenenceEntry } from '../models/maintenenceEntryType';
+import { FormControl, InputLabel, Select, MenuItem } from '@material-ui/core';
+
+export enum EditMaintenenceEntryDialogMode {
+  None = "none",
+  AddMaintenenceEntry = "addMaintenenceEntry",
+  EditMaintenenceEntry = "editMaintenenceEntry",
+  RemoveMaintenenceEntry = "removeMaintenenceEntry"
+}
+
+const mapDispatch = (dispatcher: IDispatcher) => ({
+  addOrUpdateMaintenenceEntry: (entry: MaintenenceEntry) => {
+    dispatcher.dispatch(addOrUpdateMaintenenceEntryAsyncActionCreator(entry));
+  },
+  removeMaintenenceEntry: (entry: MaintenenceEntry) => {
+    dispatcher.dispatch(removeFromMaintenenceEntrysAsyncActionCreator(entry));
+  },
+});
+
+type DialogSettings = {
+  dialogTitle: string,
+  dialogDescription: string,
+  applyButtonText: string,
+  cancelButtonText: string,
+  enableMountIdEditor: boolean,
+  enableTimeEditor: boolean,
+}
+
+const settings: { [key: string]: DialogSettings } = {
+  [EditMaintenenceEntryDialogMode.None]: {
+    dialogTitle: "",
+    dialogDescription: "",
+    applyButtonText: "",
+    cancelButtonText: "",
+    enableMountIdEditor: false,
+    enableTimeEditor: false,
+  },
+  [EditMaintenenceEntryDialogMode.AddMaintenenceEntry]: {
+    dialogTitle: "Add new maintenence entry",
+    dialogDescription: "",
+    applyButtonText: "Add",
+    cancelButtonText: "Cancel",
+    enableMountIdEditor: true,
+    enableTimeEditor: true,
+  },
+  [EditMaintenenceEntryDialogMode.EditMaintenenceEntry]: {
+    dialogTitle: "Edit maintenence entry",
+    dialogDescription: "",
+    applyButtonText: "Save",
+    cancelButtonText: "Cancel",
+    enableMountIdEditor: false,
+    enableTimeEditor: true,
+  },
+  [EditMaintenenceEntryDialogMode.RemoveMaintenenceEntry]: {
+    dialogTitle: "Remove maintenence entry",
+    dialogDescription: "",
+    applyButtonText: "Remove",
+    cancelButtonText: "Cancel",
+    enableMountIdEditor: false,
+    enableTimeEditor: false,
+  },
+}
+
+type EditMaintenenceEntryDIalogComponentProps = Connect<undefined, typeof mapDispatch> & {
+  mode: EditMaintenenceEntryDialogMode;
+  initialMaintenenceEntry: MaintenenceEntry;
+  onClose: () => void;
+};
+
+type EditMaintenenceEntryDIalogComponentState = MaintenenceEntry;
+
+class EditMaintenenceEntryDIalogComponent extends React.Component<EditMaintenenceEntryDIalogComponentProps, EditMaintenenceEntryDIalogComponentState> {
+  constructor (props: EditMaintenenceEntryDIalogComponentProps) {
+    super(props);
+
+    this.state = {
+      ...this.props.initialMaintenenceEntry
+    };
+  }
+
+  render(): JSX.Element {
+    const setting = settings[this.props.mode];
+    return (
+      <Dialog open={this.props.mode !== EditMaintenenceEntryDialogMode.None}>
+        <DialogTitle id="form-dialog-title">{setting.dialogTitle}</DialogTitle>
+        <DialogContent>
+          <DialogContentText>
+            {setting.dialogDescription}
+          </DialogContentText>
+          <TextField disabled={!setting.enableMountIdEditor} spellCheck={false} autoFocus margin="dense" id="name" label="Name" type="text" fullWidth value={this.state.mountId} onChange={(event) => { this.setState({ mountId: event.target.value }); }} />
+          <TextField disabled={!setting.enableTimeEditor} spellCheck={false} autoFocus margin="dense" id="start" label="Start" type="datetime-local" fullWidth value={this.state.start} onChange={(event) => { this.setState({ start: event.target.value }); }} />
+          <TextField disabled={!setting.enableTimeEditor} spellCheck={false} autoFocus margin="dense" id="end" label="End" type="datetime-local" fullWidth value={this.state.end} onChange={(event) => { this.setState({ end: event.target.value }); }} />
+          <FormControl fullWidth disabled={!setting.enableTimeEditor}>
+            <InputLabel htmlFor="active">Active</InputLabel>
+            <Select value={ this.state.active || false } onChange={(event) => {
+              this.setState({ active: event.target.value as any as boolean });
+            }} inputProps={{ name: 'active', id: 'active' }} fullWidth >
+              <MenuItem value={true as any as string}>active</MenuItem>
+              <MenuItem value={false as any as string}>not active</MenuItem>
+            </Select>
+          </FormControl>
+        </DialogContent>
+        <DialogActions>
+          <Button onClick={(event) => {
+            this.onApply({
+              _id: this.state._id || this.state.mountId,
+              mountId: this.state.mountId,
+              description: this.state.description,
+              start: this.state.start,
+              end: this.state.end,
+              active: this.state.active
+            });
+            event.preventDefault();
+            event.stopPropagation();
+          }} > {setting.applyButtonText} </Button>
+          <Button onClick={(event) => {
+            this.onCancel();
+            event.preventDefault();
+            event.stopPropagation();
+          }} color="secondary"> {setting.cancelButtonText} </Button>
+        </DialogActions>
+      </Dialog>
+    )
+  }
+
+  private onApply = (entry: MaintenenceEntry) => {
+    this.props.onClose && this.props.onClose();
+    switch (this.props.mode) {
+      case EditMaintenenceEntryDialogMode.AddMaintenenceEntry:
+        entry && this.props.addOrUpdateMaintenenceEntry(entry);
+        break;
+      case EditMaintenenceEntryDialogMode.EditMaintenenceEntry:
+        entry && this.props.addOrUpdateMaintenenceEntry(entry);
+        break;
+      case EditMaintenenceEntryDialogMode.RemoveMaintenenceEntry:
+        entry && this.props.removeMaintenenceEntry(entry);
+        break;
+    }
+  };
+
+
+  private onCancel = () => {
+    this.props.onClose && this.props.onClose();
+  }
+
+  static getDerivedStateFromProps(props: EditMaintenenceEntryDIalogComponentProps, state: EditMaintenenceEntryDIalogComponentState & { _initialMaintenenceEntry: MaintenenceEntry }): EditMaintenenceEntryDIalogComponentState & { _initialMaintenenceEntry: MaintenenceEntry } {
+    if (props.initialMaintenenceEntry !== state._initialMaintenenceEntry) {
+      state = {
+        ...state,
+        ...props.initialMaintenenceEntry,
+        _initialMaintenenceEntry: props.initialMaintenenceEntry,
+      };
+    }
+    return state;
+  }
+
+}
+
+export const EditMaintenenceEntryDIalog = connect(undefined, mapDispatch)(EditMaintenenceEntryDIalogComponent);
+export default EditMaintenenceEntryDIalog;
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenanceAppRootHandler.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenanceAppRootHandler.ts
new file mode 100644
index 000000000..956d05843
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenanceAppRootHandler.ts
@@ -0,0 +1,27 @@
+// main state handler
+
+import { combineActionHandler } from '../../../../framework/src/flux/middleware';
+
+import { IApplicationStoreState } from '../../../../framework/src/store/applicationStore';
+
+import { IConnectAppStoreState } from '../../../connectApp/src/handlers/connectAppRootHandler';
+
+import { IMaintenenceEntriesState, maintenenceEntriesActionHandler } from './maintenenceEntriesHandler';
+
+export interface IMaintenanceAppStoreState {
+  maintenenceEntries : IMaintenenceEntriesState
+}
+
+declare module '../../../../framework/src/store/applicationStore' {
+  interface IApplicationStoreState {
+    maintenanceApp: IMaintenanceAppStoreState,
+    connectApp: IConnectAppStoreState
+  }
+}
+
+const actionHandlers = {
+  maintenenceEntries: maintenenceEntriesActionHandler
+};
+
+export const maintenanceAppRootHandler = combineActionHandler<IMaintenanceAppStoreState>(actionHandlers);
+export default maintenanceAppRootHandler;
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenenceEntriesHandler.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenenceEntriesHandler.ts
new file mode 100644
index 000000000..13f4a3b6d
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/handlers/maintenenceEntriesHandler.ts
@@ -0,0 +1,40 @@
+import { IActionHandler } from '../../../../framework/src/flux/action';
+
+import { MaintenenceEntry } from '../models/maintenenceEntryType';
+import { LoadAllMainteneceEntriesAction, AllMainteneceEntriesLoadedAction, UpdateMaintenanceEntry } from '../actions/maintenenceActions';
+
+export interface IMaintenenceEntriesState {
+  entries: MaintenenceEntry[];
+  busy: boolean;
+}
+
+const maintenanceEntriesStateInit: IMaintenenceEntriesState = {
+  entries: [],
+  busy: false
+};
+
+export const maintenenceEntriesActionHandler: IActionHandler<IMaintenenceEntriesState> = (state = maintenanceEntriesStateInit, action) => {
+  if (action instanceof LoadAllMainteneceEntriesAction){
+    state = {
+      ...state,
+      busy: true,
+    }
+  } else if (action instanceof AllMainteneceEntriesLoadedAction){
+    state = {
+      ...state,
+      entries: action.maintenenceEntries || [],
+      busy: false,
+    }
+  } else if (action instanceof UpdateMaintenanceEntry) {
+    const index = state.entries.findIndex(e => action.maintenenceEntry.mountId === e.mountId);
+    state = {
+      ...state,
+      entries: index > -1 ? [
+        ...state.entries.slice(0, index),
+        action.maintenenceEntry,
+        ...state.entries.slice(index+1),
+      ] : [...state.entries, action.maintenenceEntry]
+    }
+  }
+  return state;
+}
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/index.html b/sdnr/wt/odlux/apps/maintenanceApp/src/index.html
new file mode 100644
index 000000000..c84aecee1
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/index.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <!-- <link rel="stylesheet" href="./vendor.css"> -->
+  <title>Minimal App</title>
+</head>
+
+<body>
+  <div id="app"></div>
+  <script type="text/javascript" src="./require.js"></script>
+  <script type="text/javascript" src="./config.js"></script>
+  <script>
+    // run the application
+    require(["app","connectApp", "maintenanceApp"], function (app, connectApp, maintenanceApp) {
+      connectApp.register();
+      maintenanceApp.register();
+      app("./app.tsx").runApplication();
+    });
+  </script>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/models/maintenenceEntryType.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/models/maintenenceEntryType.ts
new file mode 100644
index 000000000..fca70f2af
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/models/maintenenceEntryType.ts
@@ -0,0 +1,28 @@
+/** Represents the elestic search db type for maintenence enrties */
+export type MaintenenceEntryType = {
+    node: string;
+    // According to the arrangement from 2019.02.15 there will be currently only one element in the filters array.
+    filter: [{
+      definition: { "object-id-ref": string ,problem: string},
+      description: string,
+      /** The end date for the maintenence mode formated as ISO date string in UTC.  */
+      end: string,
+      /** The start date for the maintenence mode formated as ISO date string in UTC.  */
+      start: string
+    }],
+    /** Determines if the filter set is activated or not. */
+    active: boolean;
+}
+
+export const spoofSymbol = Symbol("Spoof");
+
+/** Represents the type for an maintenence entry. */
+export type MaintenenceEntry = {
+  [spoofSymbol]?: boolean;
+  _id: string;
+  mountId: string;
+  description: string;
+  start: string;
+  end: string;
+  active: boolean;
+}
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/plugin.tsx b/sdnr/wt/odlux/apps/maintenanceApp/src/plugin.tsx
new file mode 100644
index 000000000..19e188ec2
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/plugin.tsx
@@ -0,0 +1,27 @@
+// app configuration and main entry point for the app
+
+import * as React from "react";
+
+import { faLock } from '@fortawesome/free-solid-svg-icons';  // select app icon
+
+import applicationManager from '../../../framework/src/services/applicationManager';
+
+import { maintenanceAppRootHandler } from './handlers/maintenanceAppRootHandler';
+
+import MaintenenceView from "./views/maintenenceView";
+
+const App : React.SFC = (props) => {
+  return <MaintenenceView />
+};
+
+export function register() {
+  applicationManager.registerApplication({
+    name: "maintenanceApp",
+    icon: faLock,
+    rootComponent: App,
+    rootActionHandler: maintenanceAppRootHandler,
+    menuEntry: "Maintenance App"
+  });
+}
+
+
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/services/maintenenceService.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/services/maintenenceService.ts
new file mode 100644
index 000000000..5e15a4c78
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/services/maintenenceService.ts
@@ -0,0 +1,82 @@
+import { requestRest } from '../../../../framework/src/services/restService';
+import { Result, HitEntry, PostResponse, DeleteResponse } from '../../../../framework/src/models/elasticSearch';
+
+import { MaintenenceEntryType, MaintenenceEntry } from '../models/maintenenceEntryType';
+import { convertToLocaleString, convertToGMTString } from '../utils/timeUtils';
+
+export const maintenenceEntryDatabasePath = "mwtn/maintenancemode";
+
+/**
+ * Represents a web api accessor service for all maintenence entries related actions.
+ */
+class MaintenenceService {
+  /**
+    * Gets all maintenence entries from the backend.
+    */
+  public async getAllMaintenenceEntries(): Promise<(MaintenenceEntry[]) | null> {
+    const path = `database/${maintenenceEntryDatabasePath}/_search`;
+    const query = { "query": { "match_all": {} } };
+
+    const result = await requestRest<Result<MaintenenceEntryType>>(path, { method: "POST", body: JSON.stringify(query) });
+    return result && result.hits && result.hits.hits && result.hits.hits.map(me => me._source && me._source.filter[0] && ({
+      _id: me._id,
+      mountId: me._source.node,
+      description: me._source.filter[0].description,
+      start: me._source.filter[0].start && convertToLocaleString(me._source.filter[0].start),
+      end: me._source.filter[0].end && convertToLocaleString(me._source.filter[0].end),
+      active: me._source.active
+    })) || null;
+  }
+
+  /**
+    * Gets one maintenence entry by its mountId from the backend.
+    */
+  public async getMaintenenceEntryByMountId(mountId: string): Promise<(MaintenenceEntry) | null> {
+    const path = `database/${maintenenceEntryDatabasePath}/${mountId}`;
+
+    const result = await requestRest<HitEntry<MaintenenceEntryType> & { found: boolean }>(path, { method: "GET" });
+    return result && result.found && result._source && result._source.filter[0] && {
+      _id: result._id,
+      mountId: result._source.node,
+      description: result._source.filter[0].description,
+      start: result._source.filter[0].start && convertToLocaleString(result._source.filter[0].start),
+      end: result._source.filter[0].end && convertToLocaleString(result._source.filter[0].end),
+      active: result._source.active
+    } || null;
+  }
+
+  /**
+  * Adds or updates one maintenence entry to the backend.
+  */
+  public async writeMaintenenceEntry(maintenenceEntry: MaintenenceEntry): Promise<PostResponse | null> {
+    const path = `database/${maintenenceEntryDatabasePath}/${maintenenceEntry._id}`;
+    const data: MaintenenceEntryType = {
+      node: maintenenceEntry.mountId,
+      filter: [
+        {
+          definition: { "object-id-ref": "", problem: "" },
+          description: "",
+          start: convertToGMTString(maintenenceEntry.start),
+          end: convertToGMTString(maintenenceEntry.end)
+        }
+      ],
+      active: maintenenceEntry.active
+    };
+
+    const result = await requestRest<PostResponse>(path, { method: "POST", body: JSON.stringify(data) });
+    return result || null;
+  }
+
+  /**
+  * Deletes one maintenence entry by its mountId from the backend.
+  */
+  public async deleteMaintenenceEntry(maintenenceEntry: MaintenenceEntry): Promise<(DeleteResponse) | null> {
+    const path = `database/${maintenenceEntryDatabasePath}/${maintenenceEntry._id}`;
+
+    const result = await requestRest<DeleteResponse>(path, { method: "DELETE" });
+    return result || null;
+  }
+}
+
+export const maintenenceService = new MaintenenceService();
+export default maintenenceService;
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/utils/timeUtils.ts b/sdnr/wt/odlux/apps/maintenanceApp/src/utils/timeUtils.ts
new file mode 100644
index 000000000..92bc2ba8b
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/utils/timeUtils.ts
@@ -0,0 +1,22 @@
+export function convertToGMTString(dateString: string): string {
+  const date = new Date(dateString);
+  const pad = (n: number) => (n < 10) ? '0' + n : n;
+
+  return date.getUTCFullYear() +
+    '-' + pad(date.getUTCMonth() + 1) +
+    '-' + pad(date.getUTCDate()) +
+    'T' + pad(date.getUTCHours()) +
+    ':' + pad(date.getUTCMinutes()) +
+    '+00:00';
+}
+
+export function convertToLocaleString(rawDate: string| number): string {
+  const date = new Date(rawDate);
+  const pad = (n: number) => (n < 10) ? '0' + n : n;
+
+  return date.getFullYear() +
+    '-' + pad(date.getMonth() + 1) +
+    '-' + pad(date.getDate()) +
+    'T' + pad(date.getHours()) +
+    ':' + pad(date.getMinutes());
+}
\ No newline at end of file
diff --git a/sdnr/wt/odlux/apps/maintenanceApp/src/views/maintenenceView.tsx b/sdnr/wt/odlux/apps/maintenanceApp/src/views/maintenenceView.tsx
new file mode 100644
index 000000000..f048d6cc5
--- /dev/null
+++ b/sdnr/wt/odlux/apps/maintenanceApp/src/views/maintenenceView.tsx
@@ -0,0 +1,200 @@
+import * as React from 'react';
+
+import { Theme, createStyles, WithStyles, withStyles, Tooltip } from '@material-ui/core';
+
+import AddIcon from '@material-ui/icons/Add';
+import EditIcon from '@material-ui/icons/Edit';
+import RemoveIcon from '@material-ui/icons/RemoveCircleOutline';
+
+import Button from '@material-ui/core/Button';
+import IconButton from '@material-ui/core/IconButton';
+
+import connect, { IDispatcher, Connect } from '../../../../framework/src/flux/connect';
+import MaterialTable, { MaterialTableCtorType, ColumnType } from '../../../../framework/src/components/material-table';
+import { IApplicationStoreState } from '../../../../framework/src/store/applicationStore';
+
+import { loadAllMountedNetworkElementsAsync } from '../../../connectApp/src/actions/mountedNetworkElementsActions';
+
+import { loadAllMainteneceEntriesAsyncAction } from '../actions/maintenenceActions';
+import { MaintenenceEntry, spoofSymbol } from '../models/maintenenceEntryType';
+
+import EditMaintenenceEntryDialog, { EditMaintenenceEntryDialogMode } from '../components/editMaintenenceEntryDialog';
+import { convertToLocaleString } from '../utils/timeUtils';
+
+const styles = (theme: Theme) => createStyles({
+  button: {
+    margin: 0,
+    padding: "6px 6px",
+    minWidth: 'unset'
+  },
+  spacer: {
+    marginLeft: theme.spacing.unit,
+    marginRight: theme.spacing.unit,
+    display: "inline"
+  }
+});
+
+const MaintenenceEntriesTable = MaterialTable as MaterialTableCtorType<MaintenenceEntry>;
+
+const mapProps = (state: IApplicationStoreState) => ({
+   maintenenceEntries: state.maintenanceApp.maintenenceEntries.entries,
+   busy: state.maintenanceApp.maintenenceEntries.busy
+});
+
+const mapDispatcher = (dispatcher: IDispatcher) => ({
+  onLoadMenteneceEntries: async () => {
+    await dispatcher.dispatch(loadAllMountedNetworkElementsAsync)
+    dispatcher.dispatch(loadAllMainteneceEntriesAsyncAction);
+  }
+});
+
+const emptyMaintenenceEntry: MaintenenceEntry = {
+  _id: '',
+  mountId: '',
+  description: '',
+  start: convertToLocaleString(new Date().valueOf()),
+  end: convertToLocaleString(new Date().valueOf()),
+  active: false,
+};
+
+type MaintenenceViewComponentProps = Connect<typeof mapProps, typeof mapDispatcher> & WithStyles<typeof styles> & {
+
+}
+
+type MaintenenceViewComponentState = {
+  maintenenceEntryToEdit: MaintenenceEntry;
+  maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode;
+}
+
+class MaintenenceViewComponent extends React.Component<MaintenenceViewComponentProps, MaintenenceViewComponentState> {
+
+  constructor (props: MaintenenceViewComponentProps) {
+    super(props);
+
+    this.state = {
+      maintenenceEntryToEdit: emptyMaintenenceEntry,
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.None,
+    };
+
+  }
+
+  render() {
+    const { classes } = this.props;
+    const addMaintenenceEntryAction = {
+      icon: AddIcon, tooltip: 'Add', onClick: () => {
+        const startTime = (new Date().valueOf());
+        const endTime = startTime;
+        this.setState({
+          maintenenceEntryToEdit: {
+            ...emptyMaintenenceEntry,
+            start: convertToLocaleString(startTime),
+            end: convertToLocaleString(endTime),
+          },
+          maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.AddMaintenenceEntry
+        });
+      }
+    };
+    return (
+      <>
+        <MaintenenceEntriesTable asynchronus rows={this.props.maintenenceEntries} customActionButtons={[ addMaintenenceEntryAction ]} columns={
+        [
+          { property: "mountId", title: "Mount Id", type: ColumnType.text },
+          { property: "active", title: "Active", type: ColumnType.boolean, labels: { "true": "active", "false": "not active" }, },
+          { property: "start", title: "Start Date", type: ColumnType.text },
+          { property: "end", title: "End Date", type: ColumnType.text },
+          { property: "actions", title: "Actions", type: ColumnType.custom, customControl : ({ rowData })=>(
+            <>
+              <div className={classes.spacer}>
+                <Tooltip title={"1h from now"} ><Button className={classes.button} onClick={ (event) => this.onOpenPlus1hEditMaintenenceEntryDialog(event, rowData)} >+1h</Button></Tooltip>
+                <Tooltip title={"8h from now"} ><Button className={classes.button} onClick={(event) => this.onOpenPlus8hEditMaintenenceEntryDialog(event, rowData)} >+8h</Button></Tooltip>
+              </div>
+              <div className={classes.spacer}>
+                <Tooltip title={"Edit"} ><IconButton className={classes.button} onClick={(event) => this.onOpenEditMaintenenceEntryDialog(event, rowData)} ><EditIcon /></IconButton></Tooltip>
+                <Tooltip title={"Remove"} ><IconButton disabled={ !!rowData[spoofSymbol] } className={classes.button} onClick={(event) => this.onOpenRemoveMaintenenceEntryDialog(event, rowData)} ><RemoveIcon /></IconButton></Tooltip>
+              </div>
+            </>
+          ) },
+        ]
+        } idProperty={'_id'}> </MaintenenceEntriesTable>
+        <EditMaintenenceEntryDialog initialMaintenenceEntry={this.state.maintenenceEntryToEdit} mode={this.state.maintenenceEntryEditorMode}
+          onClose={ this.onCloseEditMaintenenceEntryDialog } />
+       </>
+    );
+  }
+
+  componentDidMount(){
+    this.props.onLoadMenteneceEntries();
+  }
+
+  private onOpenPlus1hEditMaintenenceEntryDialog = (event: React.MouseEvent<HTMLElement>, entry: MaintenenceEntry) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const startTime = (new Date().valueOf());
+    const endTime = startTime + (1 * 60 * 60 * 1000);
+    this.setState({
+      maintenenceEntryToEdit: {
+        ...entry,
+        start: convertToLocaleString(startTime),
+        end: convertToLocaleString(endTime),
+      },
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.EditMaintenenceEntry
+    });
+  }
+
+  private onOpenPlus8hEditMaintenenceEntryDialog = (event: React.MouseEvent<HTMLElement>, entry: MaintenenceEntry) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const startTime = (new Date().valueOf());
+    const endTime = startTime + (8 * 60 * 60 * 1000);
+    this.setState({
+      maintenenceEntryToEdit: {
+        ...entry,
+        start: convertToLocaleString(startTime),
+        end: convertToLocaleString(endTime),
+      },
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.EditMaintenenceEntry
+    });
+  }
+
+  private onOpenEditMaintenenceEntryDialog = (event: React.MouseEvent<HTMLElement>, entry: MaintenenceEntry) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const startTime = (new Date().valueOf());
+    const endTime = startTime ;
+    this.setState({
+      maintenenceEntryToEdit: {
+        ...entry,
+        ...(entry.start && endTime)
+          ? { start: entry.start, end: entry.end }
+          : { start: convertToLocaleString(startTime), end: convertToLocaleString(endTime)}
+      },
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.EditMaintenenceEntry
+    });
+  }
+
+  private onOpenRemoveMaintenenceEntryDialog = (event: React.MouseEvent<HTMLElement>, entry: MaintenenceEntry) => {
+    event.preventDefault();
+    event.stopPropagation();
+    const startTime = (new Date().valueOf());
+    const endTime = startTime;
+    this.setState({
+      maintenenceEntryToEdit: {
+        ...entry,
+        ...(entry.start && endTime)
+          ? { start: entry.start, end: entry.end }
+          : { start: convertToLocaleString(startTime), end: convertToLocaleString(endTime) }
+      },
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.RemoveMaintenenceEntry
+    });
+  }
+
+  private onCloseEditMaintenenceEntryDialog = () => {
+    this.setState({
+      maintenenceEntryToEdit: emptyMaintenenceEntry,
+      maintenenceEntryEditorMode: EditMaintenenceEntryDialogMode.None,
+    });
+  }
+}
+
+export const MaintenenceView = withStyles(styles)(connect(mapProps, mapDispatcher)(MaintenenceViewComponent));
+export default MaintenenceView;
\ No newline at end of file
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