it works

src/panels/corpglory-dataexporter-panel/components/Panel.tsx

@@ -1,4 +1,4 @@
-import { PanelOptions, TaskTableRowConfig, QueryTableRowConfig, DatasourceType } from '../types';
+import { PanelOptions, ExportTask, DashboardQuery, DatasourceType, ExportStatus } from '../types';
 
 import { convertTimestampToDate, getDashboardUid } from '../../../utils';
 import { CLOSE_ICON_BASE_64, DOWNLOAD_ICON_BASE_64, SELECT_ICON_BASE_64, UNSELECT_ICON_BASE_64 } from '../../../icons';
@@ -44,8 +44,8 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
   const [dashboard, setDashboard] = useState<any | null>(null);
   const [datasources, setDatasources] = useState<DataSourceSettings[] | null>(null);
 
-  const [tasks, setTasks] = useState<TaskTableRowConfig[] | null>(null);
-  const [queries, setQueries] = useState<QueryTableRowConfig[] | null>(null);
+  const [tasks, setTasks] = useState<ExportTask[] | null>(null);
+  const [queries, setQueries] = useState<DashboardQuery[] | null>(null);
 
   const [tasksDataFrame, setTasksDataFrame] = useState<DataFrame | null>(null);
   const [queriesDataFrame, setQueriesDataFrame] = useState<DataFrame | null>(null);
@@ -77,7 +77,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
       return;
     }
     dashboard.panels.forEach((panel: PanelModel) => {
-      const queries: QueryTableRowConfig[] = [];
+      const queries: DashboardQuery[] = [];
 
       // @ts-ignore
       // TODO: move plugin id to const
@@ -124,8 +124,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
       .then((tasks) => {
         setTasks(tasks);
         for (let task of tasks) {
-          // TODO: ExportStatus enum
-          if (task.status === 'exporting') {
+          if (task.progress?.status === ExportStatus.EXPORTING) {
             setTimeout(refresh, 1000);
             return;
           }
@@ -155,18 +154,23 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
   }
 
   async function onAddTaskClick(): Promise<void> {
-    const selectedQueries = _.filter(queries, (query: QueryTableRowConfig) => query.selected);
-    // TODO: timerange picker
+    const selectedQueries = _.filter(queries, (query: DashboardQuery) => query.selected);
     const timerange: [number, number] = [selectedTimeRange.from.unix(), selectedTimeRange.to.unix()];
+
+    const task: ExportTask = {
+      // @ts-ignore
+      username: contextSrv.user.name,
+      timeRange: {
+        from: timerange[0] * 1000,
+        to: timerange[1] * 1000,
+      },
+      queries: selectedQueries
+    }
     // TODO: move this function to API Service
     await queryApi('/task', {
       method: 'POST',
       data: {
-        from: timerange[0] * 1000,
-        to: timerange[1] * 1000,
-        // @ts-ignore
-        username: contextSrv.user.name,
-        tasks: selectedQueries,
+        task,
         url: window.location.toString(),
       },
     });
@@ -181,7 +185,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
     if (queries === null) {
       return;
     }
-    setQueries(queries.map((query: QueryTableRowConfig) => ({ ...query, selected: false })));
+    setQueries(queries.map((query: DashboardQuery) => ({ ...query, selected: false })));
   }
 
   function openDatasourceModal(): void {
@@ -193,7 +197,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
     unselectAllQueries();
   }
 
-  function getDataFrameForQueriesTable(configs: QueryTableRowConfig[]): DataFrame {
+  function getDataFrameForQueriesTable(queries: DashboardQuery[]): DataFrame {
     const dataFrame = toDataFrame({
       name: 'A',
       fields: [
@@ -201,8 +205,8 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
           name: 'Select',
           type: FieldType.string,
           values: _.map(
-            configs,
-            (config) => `data:image/svg+xml;base64,${config.selected ? SELECT_ICON_BASE_64 : UNSELECT_ICON_BASE_64}`
+            queries,
+            (query) => `data:image/svg+xml;base64,${query.selected ? SELECT_ICON_BASE_64 : UNSELECT_ICON_BASE_64}`
           ),
           config: {
             custom: {
@@ -222,17 +226,17 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
         {
           name: 'Panel',
           type: FieldType.string,
-          values: _.map(configs, (config) => config.panel.title),
+          values: _.map(queries, (query) => query.panel.title),
         },
         {
           name: 'RefId',
           type: FieldType.string,
-          values: _.map(configs, (config) => config.refId),
+          values: _.map(queries, (query) => query.refId),
         },
         {
           name: 'Datasource',
           type: FieldType.string,
-          values: _.map(configs, (config) => config.datasource.name),
+          values: _.map(queries, (query) => query.datasource.name),
         },
       ],
     });
@@ -249,44 +253,49 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
     return dataFrames[0];
   }
 
-  function getDataFrameForTaskTable(configs: TaskTableRowConfig[]): DataFrame {
+  function getDataFrameForTaskTable(tasks: ExportTask[]): DataFrame {
     const dataFrame = toDataFrame({
       name: 'A',
       fields: [
         {
           name: 'Time',
           type: FieldType.number,
-          values: _.map(configs, (config) => convertTimestampToDate(config.timestamp)),
+          values: _.map(tasks, (task) => convertTimestampToDate(task.progress?.time)),
         },
         {
           name: 'User',
           type: FieldType.string,
-          values: _.map(configs, (config) => config.username),
+          values: _.map(tasks, (task) => task.username),
         },
         {
           name: 'Datasource',
           type: FieldType.string,
-          values: _.map(configs, (config) => getDatasourceByUid(config.datasourceRef?.uid)?.name),
+          values: _.map(tasks, (task) => task.queries.map(query => query.datasource?.name).join(',')),
         },
         {
           name: 'Exported Rows',
           type: FieldType.number,
-          values: _.map(configs, (config) => config.rowsCount),
+          values: _.map(tasks, (task) => task.progress?.exportedRowsCount),
         },
         {
           name: 'Progress',
           type: FieldType.string,
-          values: _.map(configs, (config) => `${(config.progress * 100).toFixed(0)}%`),
+          values: _.map(tasks, (task) => `${((task.progress?.progress || 0) * 100).toFixed(0)}%`),
         },
         {
           name: 'Status',
           type: FieldType.string,
-          values: _.map(configs, (config) => config.status),
+          values: _.map(tasks, (task) => task.progress?.status),
+        },
+        {
+          name: 'Error',
+          type: FieldType.string,
+          values: _.map(tasks, (task) => task.progress?.errorMessage || '-'),
         },
         {
           name: 'Download CSV',
           type: FieldType.string,
-          values: _.map(configs, () => `data:image/png;base64,${DOWNLOAD_ICON_BASE_64}`),
+          values: _.map(tasks, () => `data:image/png;base64,${DOWNLOAD_ICON_BASE_64}`),
           config: {
             custom: {
               filterable: false,
@@ -305,7 +314,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
         {
           name: 'Delete task',
           type: FieldType.string,
-          values: _.map(configs, () => `data:image/png;base64,${CLOSE_ICON_BASE_64}`),
+          values: _.map(tasks, () => `data:image/png;base64,${CLOSE_ICON_BASE_64}`),
           config: {
             custom: {
               filterable: false,
@@ -340,7 +349,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
     const rowIndex = e.origin.rowIndex;
 
     const task = _.find(tasks, (task, idx) => idx === rowIndex);
-    await deleteTask(task?.filename);
+    await deleteTask(task?.id);
 
     const filteredTasks = _.filter(tasks, (task, idx) => idx !== rowIndex);
     setTasks(filteredTasks);
@@ -349,7 +358,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
   function onDownloadClick(e: DataLinkClickEvent): void {
     const rowIndex = e.origin.rowIndex;
     const task = _.find(tasks, (task, idx) => idx === rowIndex);
-    getStaticFile(task?.filename);
+    getStaticFile(task?.id);
   }
 
   function onDatasourceSelectClick(e: DataLinkClickEvent): void {
@@ -409,7 +418,7 @@ export function Panel({ width, height, timeRange, eventBus }: Props) {
                         aria-label="Add task button"
                         onClick={onAddTaskClick}
                         // TODO: move to function
-                        disabled={!queries?.filter((query: QueryTableRowConfig) => query.selected)?.length}
+                        disabled={!queries?.filter((query: DashboardQuery) => query.selected)?.length}
                       >
                         Add Task
                       </Button>

src/panels/corpglory-dataexporter-panel/types.ts

@@ -1,23 +1,7 @@
-import { DataQuery, DataSourceRef, DataSourceSettings, PanelModel } from '@grafana/data';
+import { DataQuery, DataSourceSettings, PanelModel } from '@grafana/data';
 
 export interface PanelOptions {}
 
-export type TaskTableRowConfig = {
-  timestamp: number;
-  username: string;
-  datasourceRef: DataSourceRef;
-  rowsCount: number;
-  progress: number;
-  status: string;
-  filename?: string;
-};
-
-export type QueryTableRowConfig = Omit<DataQuery, 'datasource'> & {
-  selected: boolean;
-  panel: PanelModel;
-  datasource: DataSourceSettings;
-};
-
 export enum DatasourceType {
   INFLUXDB = 'influxdb',
   GRAPHITE = 'graphite',
@@ -26,3 +10,34 @@ export enum DatasourceType {
   ELASTICSEARCH = 'elasticsearch',
   MYSQL = 'mysql',
 }
+
+export enum ExportStatus {
+  EXPORTING = 'exporting',
+  FINISHED = 'finished',
+  ERROR = 'error',
+}
+
+export type ExportProgress = {
+  time: number;
+  exportedRowsCount: number;
+  progress: number;
+  status: ExportStatus;
+  errorMessage?: string;
+};
+
+export type ExportTask = {
+  username: string;
+  queries: DashboardQuery[];
+  timeRange: {
+    from: number;
+    to: number;
+  };
+  progress?: ExportProgress;
+  id?: string;
+};
+
+export type DashboardQuery = DataQuery & {
+  selected: boolean;
+  panel: PanelModel;
+  datasource: DataSourceSettings;
+};

src/services/api_service.ts

@@ -1,4 +1,4 @@
-import { TaskTableRowConfig } from '../panels/corpglory-dataexporter-panel/types';
+import { ExportTask } from '../panels/corpglory-dataexporter-panel/types';
 
 import axios from 'axios';
 import * as _ from 'lodash';
@@ -43,24 +43,24 @@ export const queryApi = async <RT = any>(path: string, config: RequestConfig) =>
   return response.data as RT;
 };
 
-export async function getTasks(): Promise<TaskTableRowConfig[]> {
-  return queryApi<TaskTableRowConfig[]>('/task', {});
+export async function getTasks(): Promise<ExportTask[]> {
+  return queryApi<ExportTask[]>('/task', {});
 }
 
-export async function deleteTask(filename?: string): Promise<void> {
-  if (_.isEmpty(filename)) {
-    console.warn(`can't delete task without filename`);
+export async function deleteTask(taskId?: string): Promise<void> {
+  if (_.isEmpty(taskId)) {
+    console.warn(`can't delete task without taskId`);
     return;
   }
-  await queryApi<TaskTableRowConfig[]>('/task', { method: 'DELETE', data: { filename } });
+  await queryApi<ExportTask[]>('/task', { method: 'DELETE', data: { taskId } });
 }
 
-export async function getStaticFile(filename?: string): Promise<void> {
-  if (_.isEmpty(filename)) {
-    console.warn(`can't download file without name`);
+export async function getStaticFile(taskId?: string): Promise<void> {
+  if (_.isEmpty(taskId)) {
+    console.warn(`can't download file without taskId`);
     return;
   }
-  const respData = await queryApi(`/static/${filename}.csv`, {});
+  const respData = await queryApi(`/static/${taskId}.csv`, {});
   // TODO: check if resp exists
   // create file link in browser's memory
   const href = URL.createObjectURL(new Blob([respData], { type: 'text/csv' }));
@@ -68,7 +68,7 @@ export async function getStaticFile(filename?: string): Promise<void> {
   // create "a" HTML element with href to file & click
   const link = document.createElement('a');
   link.href = href;
-  link.setAttribute('download', `${filename}.csv`);
+  link.setAttribute('download', `${taskId}.csv`);
   document.body.appendChild(link);
   link.click();
 

src/utils/index.ts

@@ -15,7 +15,7 @@ export function getDashboardUid(url: string): string {
   }
 }
 
-export function convertTimestampToDate(timestamp: number): string {
+export function convertTimestampToDate(timestamp?: number): string {
   const options: Intl.DateTimeFormatOptions = {
     year: 'numeric',
     month: 'short',
@@ -24,5 +24,7 @@ export function convertTimestampToDate(timestamp: number): string {
     minute: 'numeric',
     second: 'numeric',
   };
-  return new Date(timestamp).toLocaleString('en-GB', options);
+  return timestamp ?
+    new Date(timestamp).toLocaleString('en-GB', options):
+    '-';
 }