Delete widget backend

cogboard-app/src/main/kotlin/com/cognifide/cogboard/CogboardConstants.kt

@@ -30,6 +30,7 @@ class CogboardConstants {
 
         const val EVENT_SEND_MESSAGE_TO_WEBSOCKET = "cogboard.websocket.message"
         const val EVENT_UPDATE_WIDGET_CONFIG = "cogboard.config.widget.update"
+        const val EVENT_DELETE_WIDGET_CONFIG = "cogboard.config.widget.delete"
         const val EVENT_CONFIG_SAVE = "cogboard.config.save"
         const val EVENT_HTTP_GET = "cogboard.httpclient.get"
         const val EVENT_HTTP_CHECK = "cogboard.httpclient.check"

cogboard-app/src/main/kotlin/com/cognifide/cogboard/config/ConfigManager.kt

@@ -22,6 +22,7 @@ class ConfigManager : AbstractVerticle() {
         storage = VolumeStorage(vertx)
         listenOnConfigSave()
         listenOnWidgetUpdate()
+        listenOnWidgetDelete()
         loadConfig()
     }
 
@@ -35,6 +36,11 @@ class ConfigManager : AbstractVerticle() {
             .consumer<JsonObject>(CogboardConstants.EVENT_UPDATE_WIDGET_CONFIG)
             .handler { createOrUpdate(it.body()) }
 
+    private fun listenOnWidgetDelete() = vertx
+            .eventBus()
+            .consumer<JsonObject>(CogboardConstants.EVENT_DELETE_WIDGET_CONFIG)
+            .handler { delete(it.body()) }
+
     private fun loadConfig() = storage
             .loadConfig()
             .getJsonObject(CogboardConstants.PROP_WIDGETS)
@@ -55,7 +61,17 @@ class ConfigManager : AbstractVerticle() {
             attachEndpoint(newConfig)
             widgets[id] = WidgetIndex.create(newConfig, vertx).start()
         } else {
-            LOGGER.error("There is widget with no ID in configuration: $config")
+            LOGGER.error("Widget Update / Create | There is widget with no ID in configuration: $config")
+        }
+    }
+
+    private fun delete(config: JsonObject) {
+        val id = config.getString(CogboardConstants.PROP_ID)
+
+        if (id != null) {
+            widgets.remove(id)?.stop()
+        } else {
+            LOGGER.error("Widget Delete | There is widget with no ID in configuration: $config")
         }
     }
 

cogboard-app/src/main/kotlin/com/cognifide/cogboard/widget/handler/DeleteWidget.kt

@@ -0,0 +1,27 @@
+package com.cognifide.cogboard.widget.handler
+
+import com.cognifide.cogboard.CogboardConstants
+import io.knotx.server.api.handler.RoutingHandlerFactory
+import io.vertx.core.Handler
+import io.vertx.core.json.JsonObject
+import io.vertx.reactivex.core.Vertx
+import io.vertx.reactivex.ext.web.RoutingContext
+
+class DeleteWidget : RoutingHandlerFactory {
+
+    override fun getName(): String = "widget-delete-handler"
+
+    override fun create(vertx: Vertx?, config: JsonObject?): Handler<RoutingContext> = Handler { event ->
+        vertx
+                ?.eventBus()
+                ?.publish(CogboardConstants.EVENT_DELETE_WIDGET_CONFIG, event.body.toJsonObject())
+        event
+                .response()
+                .end(config?.getJsonObject("body", DEFAULT_NO_BODY)?.encode())
+    }
+
+    companion object {
+        val DEFAULT_NO_BODY: JsonObject = JsonObject().put("status", "failed")
+    }
+
+}

cogboard-app/src/main/resources/META-INF/services/io.knotx.server.api.handler.RoutingHandlerFactory

@@ -3,4 +3,5 @@ com.cognifide.cogboard.config.handler.GetConfig
 com.cognifide.cogboard.config.handler.SaveConfig
 com.cognifide.cogboard.config.handler.HomePage
 com.cognifide.cogboard.widget.handler.UpdateWidget
+com.cognifide.cogboard.widget.handler.DeleteWidget
 com.cognifide.cogboard.security.LoginHandler

cogboard-webapp/src/actions/thunks.js

@@ -100,8 +100,13 @@ const makeWidgetUpdaterThunk = (beforeUpdateActionCreator, widgetDataCreator) =>
 const removeWidgetThunk = (id) =>
   (dispatch, getState) => {
     const { currentBoard: boardId } = getState().ui;
+    const token = getState().app.jwToken;
 
-    dispatch(deleteWidget(id, boardId));
+    return fetchData(URL.DELETE_WIDGET, 'POST', { id }, token)
+      .then(
+        () => dispatch(deleteWidget(id, boardId)),
+        console.error
+      );
   };
 
 export const reorderWidgets = (sourceId, targetIndex) =>

cogboard-webapp/src/constants/index.js

@@ -4,6 +4,7 @@ export const URL = {
   LOAD_DATA: '/api/config', // for front dev change to '/data.json'
   SAVE_DATA: '/api/config/save',
   UPDATE_WIDGET: '/api/widget/update',
+  DELETE_WIDGET: '/api/widget/delete',
   LOGIN: '/api/login'
 };
 export const COLUMNS_MIN = 1;

docs/index.md

@@ -29,4 +29,5 @@
 
 ### Other
 * [Stack](./stack)
+* [Tips & Tricks](./tips)
 * [Screenshots](./screens)

docs/tips.md

@@ -0,0 +1,13 @@
+#### 1. Error while deploying Cogboard container
+If You see similar error while deploying Cogboard:
+```bash
+Failed to deploy 'cogboard Image id: cogboard/cogboard-app': com.github.dockerjava.api.exception.InternalServerErrorException: {"message":"error while creating mount source path '/host_mnt/c/Users/user.name/.workspace/cogboard/mnt': mkdir /host_mnt/c: file exists"
+```
+If you recently changed your AD password. 
+##### Try to restart `Docker Desktop` so it will ask You for AD credentials to access local filesystem.
+
+ ----
+
+#### 2.
+
+ ----

knotx/conf/openapi.yaml

@@ -63,6 +63,14 @@ paths:
       responses:
         default:
           description: Widget Update Handler
+  /api/widget/delete:
+    post:
+      operationId: widget-delete-handler
+      security:
+        - cogboardAuth: []
+      responses:
+        default:
+          description: Widget Delete Handler
   /:
     get:
       operationId: home-page

knotx/conf/routes/operations.conf

@@ -81,4 +81,18 @@ routingOperations = ${routingOperations} [
       }
     ]
   }
+  {
+    operationId = widget-delete-handler
+    handlers = [
+      {
+        name = widget-delete-handler
+        config {
+          body {
+            status = success
+            message = "Widget Deleted"
+          }
+        }
+      }
+    ]
+  }
 ]