Refactor communication

Add QoS andd retain flag
Refactor reducer

app/src/App.tsx

@@ -14,11 +14,6 @@ import UpdateNotifier from './UpdateNotifier'
 import { connect } from 'react-redux'
 import ErrorBoundary from './ErrorBoundary'
 
-interface State {
-  selectedNode?: q.TreeNode,
-  connectionId?: string
-}
-
 interface Props {
   name: string
   connectionId: string
@@ -26,12 +21,10 @@ interface Props {
   settingsVisible: boolean
 }
 
-class App extends React.Component<Props, State> {
+class App extends React.Component<Props, {}> {
   constructor(props: any) {
     super(props)
-    this.state = {
-      selectedNode: undefined,
-    }
+    this.state = { }
   }
 
   private getStyles(): {[s: string]: React.CSSProperties} {
@@ -94,9 +87,7 @@ class App extends React.Component<Props, State> {
               <TitleBar />
               <div style={centerContent}>
                 <div style={this.getStyles().left}>
-                  <Tree connectionId={this.props.connectionId} didSelectNode={(node: q.TreeNode) => {
-                    this.setState({ selectedNode: node })
-                  }} />
+                  <Tree connectionId={this.props.connectionId} />
                 </div>
                 <div style={this.getStyles().right}>
                   <Sidebar connectionId={this.props.connectionId} />
@@ -113,8 +104,8 @@ class App extends React.Component<Props, State> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    settingsVisible: state.settings.visible,
-    connectionId: state.connectionId,
+    settingsVisible: state.tooBigReducer.settings.visible,
+    connectionId: state.tooBigReducer.connectionId,
   }
 }
 

app/src/UpdateNotifier.tsx

@@ -212,8 +212,8 @@ const styles = (theme: Theme) => ({
 
 const mapStateToProps = (state: AppState) => {
   return {
-    showUpdateNotification: state.showUpdateNotification,
-    showUpdateDetails: state.showUpdateDetails,
+    showUpdateNotification: state.tooBigReducer.showUpdateNotification,
+    showUpdateDetails: state.tooBigReducer.showUpdateDetails,
   }
 }
 

app/src/actions/Connection.ts

@@ -32,7 +32,7 @@ export const showError = (error?: string) => ({
 })
 
 export const disconnect = () => (dispatch: Dispatch<CustomAction>, getState: () => AppState)  => {
-  rendererEvents.emit(removeConnection, getState().connectionId)
+  rendererEvents.emit(removeConnection, getState().tooBigReducer.connectionId)
 
   dispatch({
     type: ActionTypes.disconnect,

app/src/actions/Publish.ts

@@ -0,0 +1,61 @@
+import { ActionTypes, Action } from '../reducers/Publish'
+import { AppState } from '../reducers'
+import { Dispatch } from 'redux'
+import { rendererEvents, makePublishEvent } from '../../../events'
+
+export const setTopic = (topic?: string): Action  => {
+  return {
+    topic,
+    type: ActionTypes.PUBLISH_SET_TOPIC,
+  }
+}
+
+export const setPayload = (payload?: string): Action => {
+  return {
+    payload,
+    type: ActionTypes.PUBLISH_SET_PAYLOAD,
+  }
+}
+
+export const toggleEmptyPayload = (): Action => {
+  return {
+    type: ActionTypes.PUBLISH_TOGGLE_EMPTY_PAYLOAD,
+  }
+}
+
+export const setQoS = (qos: 0 | 1 | 2): Action => {
+  return {
+    qos,
+    type: ActionTypes.PUBLISH_SET_QOS,
+  }
+}
+
+export const setEditorMode = (editorMode: string): Action => {
+  return {
+    editorMode,
+    type: ActionTypes.PUBLISH_SET_EDITOR_MODE,
+  }
+}
+
+export const publish = (connectionId: string) => (dispatch: Dispatch<Action>, getState: () => AppState)  => {
+  const state = getState()
+  const topic = state.publish.topic
+
+  if (!topic) {
+    return
+  }
+
+  const publishEvent = makePublishEvent(connectionId)
+  rendererEvents.emit(publishEvent, {
+    topic,
+    payload: state.publish.payload,
+    retain: state.publish.retain,
+    qos: state.publish.qos,
+  })
+}
+
+export const toggleRetain = (): Action => {
+  return {
+    type: ActionTypes.PUBLISH_TOGGLE_RETAIN,
+  }
+}

app/src/actions/Sidebar.ts

@@ -1,15 +0,0 @@
-import { ActionTypes, CustomAction } from '../reducers'
-
-export const setPublishTopic = (topic: string): CustomAction  => {
-  return {
-    publishTopic: topic,
-    type: ActionTypes.setPublishTopic,
-  }
-}
-
-export const setPublishPayload = (payload: string): CustomAction => {
-  return {
-    publishPayload: payload,
-    type: ActionTypes.setPublishPayload,
-  }
-}

app/src/actions/index.ts

@@ -1,7 +1,7 @@
 import * as settingsActions from './Settings'
-import * as sidebarActions from './Sidebar'
+import * as publishActions from './Publish'
 import * as treeActions from './Tree'
 import * as updateNotifierActions from './UpdateNotifier'
 import * as connectionActions from './Connection'
 
-export { settingsActions, treeActions, sidebarActions, updateNotifierActions, connectionActions }
+export { settingsActions, treeActions, publishActions, updateNotifierActions, connectionActions }

app/src/components/ConnectionSetup/Connection.tsx

@@ -380,10 +380,10 @@ class Connection extends React.Component<Props, State> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    visible: !state.connected,
-    connected: state.connected,
-    connecting: state.connecting,
-    error: state.error,
+    visible: !state.tooBigReducer.connected,
+    connected: state.tooBigReducer.connected,
+    connecting: state.tooBigReducer.connecting,
+    error: state.tooBigReducer.error,
   }
 }
 

app/src/components/Settings.tsx

@@ -138,9 +138,9 @@ class Settings extends React.Component<Props, {}> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    autoExpandLimit: state.settings.autoExpandLimit,
-    nodeOrder: state.settings.nodeOrder,
-    visible: state.settings.visible,
+    autoExpandLimit: state.tooBigReducer.settings.autoExpandLimit,
+    nodeOrder: state.tooBigReducer.settings.nodeOrder,
+    visible: state.tooBigReducer.settings.visible,
   }
 }
 

app/src/components/Sidebar/Publish/Publish.tsx

@@ -1,4 +1,3 @@
-// tslint:disable-next-line
 import 'react-ace'
 import 'brace/mode/json'
 import 'brace/mode/text'
@@ -6,7 +5,6 @@ import 'brace/mode/xml'
 import 'brace/theme/monokai'
 
 import * as React from 'react'
-import * as brace from 'brace'
 import * as q from '../../../../../backend/src/Model'
 
 import {
@@ -15,14 +13,16 @@ import {
   Radio,
   RadioGroup,
   TextField,
-  Typography,
   IconButton,
   FormControl,
   InputLabel,
   Input,
+  Checkbox,
+  MenuItem,
+  Tooltip,
 } from '@material-ui/core'
-import { makePublishEvent, rendererEvents } from '../../../../../events'
 
+// tslint:disable-next-line
 import { default as AceEditor } from 'react-ace'
 import { AppState } from '../../../reducers'
 import History from '../History'
@@ -31,47 +31,53 @@ import Navigation from '@material-ui/icons/Navigation'
 import Clear from '@material-ui/icons/Clear'
 import { bindActionCreators } from 'redux'
 import { connect } from 'react-redux'
-import { sidebarActions } from '../../../actions'
+import { publishActions } from '../../../actions'
 
 interface Props {
   node?: q.TreeNode
   connectionId?: string
   topic?: string
   payload?: string
-  actions: any
+  actions: typeof publishActions
+  emptyPayload: boolean
+  retain: boolean
+  editorMode: string
+  qos: 0 | 1 | 2
 }
 
 interface State {
-  mode: string
   history: Message[]
 }
 
 class Publish extends React.Component<Props, State> {
   constructor(props: any) {
     super(props)
-    this.state = { mode: 'json', history: [] }
+    this.state = { history: [] }
   }
 
-  private updatePayload = (value: string, event?: any) => {
-    this.props.actions.setPublishPayload(value)
+  private updatePayload = (payload: string, event?: any) => {
+    this.props.actions.setPayload(payload)
   }
 
   private updateTopic = (e: React.ChangeEvent<HTMLInputElement>) => {
-    console.log(e.target.value)
-    this.props.actions.setPublishTopic(e.target.value)
+    this.props.actions.setTopic(e.target.value)
   }
 
   private updateMode = (e: React.ChangeEvent<{}>, value: string) => {
-    this.setState({ mode: value })
+    this.props.actions.setEditorMode(value)
   }
 
   private publish = (e: React.MouseEvent) => {
     e.stopPropagation()
+    if (!this.props.connectionId) {
+      return
+    }
+
+    this.props.actions.publish(this.props.connectionId)
     const topic = this.currentTopic() || ''
     const payload = this.props.payload
 
     if (this.props.connectionId && topic) {
-      rendererEvents.emit(makePublishEvent(this.props.connectionId), { topic, payload })
       this.addMessageToHistory(topic, payload)
     }
   }
@@ -102,7 +108,7 @@ class Publish extends React.Component<Props, State> {
   }
 
   private clearTopic = () => {
-    this.props.actions.setPublishTopic(undefined)
+    this.props.actions.setTopic('')
   }
 
   private topic() {
@@ -129,7 +135,7 @@ class Publish extends React.Component<Props, State> {
 
   private onTopicBlur = (e: React.FocusEvent<HTMLInputElement>) => {
     if (!e.target.value) {
-      this.props.actions.setPublishTopic(undefined)
+      this.props.actions.setTopic(undefined)
     }
   }
 
@@ -152,38 +158,10 @@ class Publish extends React.Component<Props, State> {
   }
 
   private editorMode() {
-    const labelStyle = { margin: '0 8px 0 8px' }
     return (
       <div style={{ marginTop: '16px' }}>
         <div style={{ width: '100%', lineHeight: '64px' }}>
-          <RadioGroup
-            style={{ display: 'inline-block', float: 'left' }}
-            value={this.state.mode}
-            onChange={this.updateMode}
-            row={true}
-          >
-            <FormControlLabel
-              value="text"
-              style={labelStyle}
-              control={<Radio color="primary" />}
-              label="raw"
-              labelPlacement="top"
-            />
-            <FormControlLabel
-              value="xml"
-              style={labelStyle}
-              control={<Radio color="primary" />}
-              label="xml"
-              labelPlacement="top"
-            />
-            <FormControlLabel
-              value="json"
-              style={labelStyle}
-              control={<Radio color="primary" />}
-              label="json"
-              labelPlacement="top"
-            />
-          </RadioGroup>
+          {this.renderEditorModeSelection()}
           <div style={{ float: 'right', marginRight: '16px' }}>
             {this.publishButton()}
           </div>
@@ -192,6 +170,103 @@ class Publish extends React.Component<Props, State> {
     )
   }
 
+  private renderEditorModeSelection() {
+    if (this.props.emptyPayload) {
+      return null
+    }
+    const labelStyle = { margin: '0 8px 0 8px' }
+    return (
+      <RadioGroup
+        style={{ display: 'inline-block', float: 'left' }}
+        value={this.props.editorMode}
+        onChange={this.updateMode}
+        row={true}
+      >
+        <FormControlLabel
+          value="text"
+          style={labelStyle}
+          control={<Radio color="primary" />}
+          label="raw"
+          labelPlacement="top"
+        />
+        <FormControlLabel
+          value="xml"
+          style={labelStyle}
+          control={<Radio color="primary" />}
+          label="xml"
+          labelPlacement="top"
+        />
+        <FormControlLabel
+          value="json"
+          style={labelStyle}
+          control={<Radio color="primary" />}
+          label="json"
+          labelPlacement="top"
+        />
+      </RadioGroup>
+    )
+  }
+
+  private onChangeQoS = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const value = parseInt(event.target.value, 10)
+    if (value !== 0 && value !== 1 && value !== 2) {
+      return
+    }
+
+    this.props.actions.setQoS(value)
+  }
+
+  private publishMode() {
+    const labelStyle = { margin: '0 8px 0 8px' }
+    const itemStyle = { padding: '0' }
+    const tooltipStyle = { textAlign: 'center' as 'center', width: '100%' }
+    const qosSelect = (
+      <TextField
+        select={true}
+        value={this.props.qos}
+        margin="normal"
+        style={{ margin: '8px 0 8px 8px' }}
+        onChange={this.onChangeQoS}
+      >
+        <MenuItem key={0} value={0} style={itemStyle}>
+          <Tooltip title="At most once"><div style={tooltipStyle}>0</div></Tooltip>
+        </MenuItem>
+        <MenuItem key={1} value={1} style={itemStyle}>
+          <Tooltip title="At least once"><div style={tooltipStyle}>1</div></Tooltip>
+        </MenuItem>
+        <MenuItem key={2} value={2} style={itemStyle}>
+          <Tooltip title="Exactly once"><div style={tooltipStyle}>2</div></Tooltip>
+        </MenuItem>
+      </TextField>
+    )
+    return (
+      <div style={{ marginTop: '8px', clear: 'both' }}>
+        <div style={{ width: '100%' }}>
+          <FormControlLabel
+            style={labelStyle}
+            control={qosSelect}
+            label="QoS"
+            labelPlacement="start"
+          />
+          <FormControlLabel
+            value="empty"
+            style={labelStyle}
+            control={<Checkbox color="primary" checked={this.props.emptyPayload} onChange={this.props.actions.toggleEmptyPayload} />}
+            label="no message"
+            labelPlacement="end"
+          />
+          <FormControlLabel
+            value="retain"
+            style={labelStyle}
+            control={<Checkbox color="primary" checked={this.props.retain} onChange={this.props.actions.toggleRetain} />}
+            label="retain"
+            labelPlacement="end"
+          />
+        </div>
+      </div>
+    )
+  }
+
   private history() {
     const items = this.state.history.reverse().map(message => ({
       title: message.topic,
@@ -203,41 +278,56 @@ class Publish extends React.Component<Props, State> {
 
   private didSelectHistoryEntry = (index: number) => {
     const message = this.state.history[index]
-    this.props.actions.setPublishTopic(message.topic)
-    this.props.actions.setPublishPayload(message.payload)
+    this.props.actions.setTopic(message.topic)
+    this.props.actions.setPayload(message.payload)
   }
 
   private editor() {
     return (
       <div style={{ width: '100%', display: 'block' }}>
         {this.editorMode()}
-        <AceEditor
-          mode={this.state.mode}
-          theme="monokai"
-          name="UNIQUE_ID_OF_DIV"
-          width="100%"
-          height="200px"
-          showGutter={true}
-          value={this.props.payload}
-          onChange={this.updatePayload}
-          setOptions={this.editorOptions}
-          editorProps={{ $blockScrolling: true }}
-        />
+        {this.renderEditor()}
+        {this.publishMode()}
       </div>
     )
   }
+
+  private renderEditor() {
+    if (this.props.emptyPayload) {
+      return null
+    }
+
+    return (
+      <AceEditor
+        mode={this.props.editorMode}
+        theme="monokai"
+        name="UNIQUE_ID_OF_DIV"
+        width="100%"
+        height="200px"
+        showGutter={true}
+        value={this.props.payload}
+        onChange={this.updatePayload}
+        setOptions={this.editorOptions}
+        editorProps={{ $blockScrolling: true }}
+      />
+    )
+  }
 }
 
 const mapDispatchToProps = (dispatch: any) => {
   return {
-    actions: bindActionCreators(sidebarActions, dispatch),
+    actions: bindActionCreators(publishActions, dispatch),
   }
 }
 
 const mapStateToProps = (state: AppState) => {
   return {
-    topic: state.sidebar.publishTopic,
-    payload: state.sidebar.publishPayload,
+    topic: state.publish.topic,
+    payload: state.publish.payload,
+    emptyPayload: state.publish.emptyPayload,
+    editorMode: state.publish.editorMode,
+    retain: state.publish.retain,
+    qos: state.publish.qos,
   }
 }
 

app/src/components/Sidebar/Sidebar.tsx

@@ -116,21 +116,13 @@ class Sidebar extends React.Component<Props, State> {
             <Typography className={classes.heading}>Value {copyValue}</Typography>
           </ExpansionPanelSummary>
           <ExpansionPanelDetails style={this.detailsStyle}>
-            <div style={{ width: '100%', textAlign:'right' }}>
-              {this.props.node && this.props.node.message && <i><DateFormatter date={this.props.node.message.received} /></i>}
-            </div>
+            {this.messageMetaInfo()}
             <div ref={this.valueRef}>
               <ValueRenderer message={this.props.node && this.props.node.message} />
             </div>
             <div><MessageHistory onSelect={this.handleMessageHistorySelect} node={this.props.node} /></div>
             <Popper open={Boolean(this.state.compareMessage)} anchorEl={this.valueRef.current} placement="left" transition={true}>
-              {({ TransitionProps }) => (
-                <Fade {...TransitionProps} timeout={350}>
-                  <Paper>
-                    <ValueRenderer message={this.state.compareMessage} />
-                  </Paper>
-                </Fade>
-              )}
+              {this.showValueComparison}
             </Popper>
           </ExpansionPanelDetails>
         </ExpansionPanel>
@@ -152,6 +144,30 @@ class Sidebar extends React.Component<Props, State> {
     )
   }
 
+  private showValueComparison = (a: any) => (
+    <Fade {...a.TransitionProps} timeout={350}>
+      <Paper>
+        <ValueRenderer message={this.state.compareMessage} />
+      </Paper>
+    </Fade>
+  )
+
+  private messageMetaInfo() {
+    if (!this.props.node || !this.props.node.message || !this.props.node.mqttMessage) {
+      return null
+    }
+
+    return (
+      <div style={{ width: '100%', display: 'flex' }}>
+        <div style={{ flex: 1 }}><Typography>QoS: {this.props.node.mqttMessage.qos}</Typography></div>
+        <div style={{ flex: 1, textAlign: 'center' }}>
+          <Typography style={{ color: this.props.theme.palette.secondary.main }}><b>{this.props.node.mqttMessage.retain ? 'retained' : null}</b></Typography>
+        </div>
+        <div style={{ flex: 1, textAlign: 'right' }}><Typography><i><DateFormatter date={this.props.node.message.received} /></i></Typography></div>
+      </div>
+    )
+  }
+
   private handleMessageHistorySelect = (message: q.Message) => {
     if (message !== this.state.compareMessage) {
       this.setState({ compareMessage: message })
@@ -175,7 +191,7 @@ class Sidebar extends React.Component<Props, State> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    node: state.selectedTopic,
+    node: state.tooBigReducer.selectedTopic,
   }
 }
 

app/src/components/TitleBar.tsx

@@ -66,7 +66,10 @@ const styles: StyleRulesCallback = theme => ({
 
 interface Props {
   classes: any
-  actions: any
+  actions: {
+    settings: typeof settingsActions,
+    connection: typeof connectionActions,
+  }
 }
 
 interface State {
@@ -91,11 +94,11 @@ class TitleBar extends React.Component<Props, State> {
     return (
       <AppBar position="static">
         <Toolbar>
-          <IconButton className={classes.menuButton} color="inherit" aria-label="Menu" onClick={this.props.actions.toggleSettingsVisibility}>
+          <IconButton className={classes.menuButton} color="inherit" aria-label="Menu" onClick={actions.settings.toggleSettingsVisibility}>
             <Menu />
           </IconButton>
           <Typography className={classes.title} variant="h6" color="inherit">MQTT-Explorer</Typography>
-          <Button style={{ margin: 'auto 8px auto auto' }} onClick={actions.disconnect}>
+          <Button style={{ margin: 'auto 8px auto auto' }} onClick={actions.connection.disconnect}>
             Disconnect <CloudOff style={{ marginRight: '8px', paddingLeft: '8px' }}/>
           </Button>
         </Toolbar>
@@ -122,7 +125,10 @@ class TitleBar extends React.Component<Props, State> {
 
 const mapDispatchToProps = (dispatch: any) => {
   return {
-    actions: { ...bindActionCreators(connectionActions, dispatch), ...bindActionCreators(settingsActions, dispatch) },
+    actions: {
+      settings: bindActionCreators(settingsActions, dispatch),
+      connection: bindActionCreators(connectionActions, dispatch),
+    },
   }
 }
 

app/src/components/Tree/Tree.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react'
 import * as q from '../../../../backend/src/Model'
 
-import { makeConnectionMessageEvent, rendererEvents } from '../../../../events'
+import { makeConnectionMessageEvent, rendererEvents, MqttMessage } from '../../../../events'
 
 import { AppState } from '../../reducers'
 import TreeNode from './TreeNode'
@@ -89,9 +89,10 @@ class Tree extends React.Component<Props, TreeState> {
     }
   }
 
-  private handleNewData = (msg: any) => {
+  private handleNewData = (msg: MqttMessage) => {
     const edges = msg.topic.split('/')
-    const node = q.TreeNodeFactory.fromEdgesAndValue(edges, Buffer.from(msg.payload, 'base64').toString())
+    const node = q.TreeNodeFactory.fromEdgesAndValue(edges, msg.payload)
+    node.mqttMessage = msg
     this.state.tree.updateWithNode(node.firstNode())
 
     this.throttledStateUpdate({ msg, tree: this.state.tree })
@@ -128,8 +129,8 @@ class Tree extends React.Component<Props, TreeState> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    autoExpandLimit: state.settings.autoExpandLimit,
-    connected: state.connected,
+    autoExpandLimit: state.tooBigReducer.settings.autoExpandLimit,
+    connected: state.tooBigReducer.connected,
   }
 }
 

app/src/components/Tree/TreeNodeSubnodes.tsx

@@ -72,7 +72,7 @@ class TreeNodeSubnodes extends React.Component<Props, {}> {
 
 const mapStateToProps = (state: AppState) => {
   return {
-    nodeOrder: state.settings.nodeOrder,
+    nodeOrder: state.tooBigReducer.settings.nodeOrder,
   }
 }
 

app/src/reducers/Publish.ts

@@ -0,0 +1,108 @@
+import { Action } from 'redux'
+import { createReducer } from './lib'
+
+export interface PublishState {
+  topic?: string
+  payload?: string
+  emptyPayload: boolean
+  retain: boolean
+  editorMode: string
+  qos: 0 | 1 | 2
+}
+
+export type Action = SetPayload | SetTopic | ToggleEmptyPayload | ToggleRetain | SetEditorMode | SetQoS
+
+export enum ActionTypes {
+  PUBLISH_SET_TOPIC = 'PUBLISH_SET_TOPIC',
+  PUBLISH_SET_PAYLOAD = 'PUBLISH_SET_PAYLOAD',
+  PUBLISH_TOGGLE_EMPTY_PAYLOAD = 'PUBLISH_TOGGLE_EMPTY_PAYLOAD',
+  PUBLISH_TOGGLE_RETAIN = 'PUBLISH_TOGGLE_RETAIN',
+  PUBLISH_SET_EDITOR_MODE = 'PUBLISH_SET_EDITOR_MODE',
+  PUBLISH_SET_QOS = 'PUBLISH_SET_QOS',
+}
+
+export interface SetPayload {
+  type: ActionTypes.PUBLISH_SET_PAYLOAD
+  payload?: string
+}
+
+export interface SetTopic {
+  type: ActionTypes.PUBLISH_SET_TOPIC
+  topic?: string
+}
+
+export interface SetQoS {
+  type: ActionTypes.PUBLISH_SET_QOS
+  qos: 0 | 1 | 2
+}
+
+export interface ToggleEmptyPayload {
+  type: ActionTypes.PUBLISH_TOGGLE_EMPTY_PAYLOAD
+}
+
+export interface SetEditorMode {
+  type: ActionTypes.PUBLISH_SET_EDITOR_MODE
+  editorMode: string
+}
+
+export interface ToggleRetain {
+  type: ActionTypes.PUBLISH_TOGGLE_RETAIN
+}
+
+const initialState: PublishState = {
+  editorMode: 'text',
+  emptyPayload: false,
+  retain: false,
+  qos: 0,
+}
+
+export const publishReducer = createReducer(initialState, {
+  PUBLISH_SET_TOPIC: setTopic,
+  PUBLISH_SET_PAYLOAD: setPayload,
+  PUBLISH_TOGGLE_EMPTY_PAYLOAD: toggleEmptyPayload,
+  PUBLISH_TOGGLE_RETAIN: toggleRetain,
+  PUBLISH_SET_EDITOR_MODE: setEditorMode,
+  PUBLISH_SET_QOS: setQoS,
+})
+
+function setTopic(state: PublishState, action: SetTopic) {
+  return {
+    ...state,
+    topic: action.topic,
+  }
+}
+
+function setPayload(state: PublishState, action: SetPayload) {
+  return {
+    ...state,
+    payload: action.payload,
+  }
+}
+
+function setQoS(state: PublishState, action: SetQoS) {
+  return {
+    ...state,
+    qos: action.qos,
+  }
+}
+
+function setEditorMode(state: PublishState, action: SetEditorMode) {
+  return {
+    ...state,
+    editorMode: action.editorMode,
+  }
+}
+
+function toggleEmptyPayload(state: PublishState) {
+  return {
+    ...state,
+    emptyPayload: !state.emptyPayload,
+  }
+}
+
+function toggleRetain(state: PublishState) {
+  return {
+    ...state,
+    retain: !state.retain,
+  }
+}

app/src/reducers/index.ts

@@ -1,10 +1,10 @@
 import * as q from '../../../backend/src/Model'
 
-import { Action, Reducer } from 'redux'
+import { Action, Reducer, combineReducers } from 'redux'
 
 import { trackEvent } from '../tracking'
-import { MqttOptions, DataSourceStateMachine } from '../../../backend/src/DataSource'
-import { rendererEvents, addMqttConnectionEvent, makeConnectionStateEvent } from '../../../events'
+import { MqttOptions } from '../../../backend/src/DataSource'
+import { PublishState, publishReducer } from './Publish'
 
 export enum ActionTypes {
   disconnect = 'DISCONNECT',
@@ -13,8 +13,6 @@ export enum ActionTypes {
   toggleSettingsVisibility = 'TOGGLE_SETTINGS_VISIBILITY',
   setNodeOrder = 'SET_NODE_ORDER',
   selectTopic = 'SELECT_TOPIC',
-  setPublishTopic = 'SET_PUBLISH_TOPIC',
-  setPublishPayload = 'SET_PUBLISH_PAYLOAD',
   showUpdateNotification = 'SHOW_UPDATE_NOTIFICATION',
   showUpdateDetails = 'SHOW_UPDATE_DETAILS',
   connecting = 'CONNECTING',
@@ -26,8 +24,6 @@ export interface CustomAction extends Action {
   autoExpandLimit?: number
   nodeOrder?: NodeOrder
   selectedTopic?: q.TreeNode
-  publishTopic?: string
-  publishPayload?: string
   showUpdateNotification?: boolean
   showUpdateDetails?: boolean
   connectionOptions?: MqttOptions
@@ -35,15 +31,14 @@ export interface CustomAction extends Action {
   error?: string
 }
 
-export interface SidebarState {
-  publishTopic?: string
-  publishPayload?: string
+export interface AppState {
+  tooBigReducer: TooBigOfState
+  publish: PublishState
 }
 
-export interface AppState {
+export interface TooBigOfState {
   settings: SettingsState,
   selectedTopic?: q.TreeNode
-  sidebar: SidebarState
   showUpdateNotification?: boolean
   showUpdateDetails: boolean
   connecting: boolean
@@ -65,13 +60,12 @@ export enum NodeOrder {
   topics = '#topics',
 }
 
-const initialAppState: AppState = {
+const initialBigState: TooBigOfState = {
   settings: {
     autoExpandLimit: 0,
     nodeOrder: NodeOrder.none,
     visible: false,
   },
-  sidebar: {},
   selectedTopic: undefined,
   showUpdateDetails: false,
   connected: false,
@@ -79,7 +73,7 @@ const initialAppState: AppState = {
   error: undefined,
 }
 
-const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialAppState, action) => {
+const tooBigReducer: Reducer<TooBigOfState | undefined, CustomAction> = (state = initialBigState, action) => {
   if (!state) {
     throw Error('No initial state')
   }
@@ -97,16 +91,7 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
           autoExpandLimit: action.autoExpandLimit,
         },
       }
-    case ActionTypes.setPublishTopic:
-      return {
-        ...state,
-        sidebar: { ...state.sidebar, publishTopic: action.publishTopic },
-      }
-    case ActionTypes.setPublishPayload:
-      return {
-        ...state,
-        sidebar: { ...state.sidebar, publishPayload: action.publishPayload },
-      }
+
     case ActionTypes.toggleSettingsVisibility:
       return {
         ...state,
@@ -115,6 +100,7 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
           visible: !state.settings.visible,
         },
       }
+
     case ActionTypes.selectTopic:
       if (!action.selectedTopic) {
         return state
@@ -123,6 +109,7 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
         ...state,
         selectedTopic: action.selectedTopic,
       }
+
     case ActionTypes.setNodeOrder:
       if (!action.nodeOrder) {
         return state
@@ -131,11 +118,13 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
         ...state,
         settings: { ...state.settings, nodeOrder: action.nodeOrder },
       }
+
     case ActionTypes.showUpdateNotification:
       return {
         ...state,
         showUpdateNotification: action.showUpdateNotification,
       }
+
     case ActionTypes.showUpdateDetails:
       if (action.showUpdateDetails === undefined) {
         return state
@@ -144,6 +133,7 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
         ...state,
         showUpdateDetails: action.showUpdateDetails,
       }
+
     case ActionTypes.connecting:
       if (!action.connectionId) {
         return state
@@ -181,4 +171,9 @@ const reducer: Reducer<AppState | undefined, CustomAction> = (state = initialApp
   }
 }
 
+const reducer = combineReducers({
+  tooBigReducer,
+  publish: publishReducer,
+})
+
 export default reducer

app/src/reducers/lib.ts

@@ -0,0 +1,9 @@
+export const createReducer = (initialState: any, handlers: any) => {
+  return (state = initialState, action: any) => {
+    if (handlers.hasOwnProperty(action.type)) {
+      return handlers[action.type](state, action)
+    } else {
+      return state
+    }
+  }
+}