[Backport 2.x] Add invalid workflow state; support JSON doc uploads

public/pages/workflow_detail/resizable_workspace.tsx

@@ -5,19 +5,28 @@
 
 import React, { useRef, useState, useEffect } from 'react';
 import { useSelector } from 'react-redux';
-import { useHistory } from 'react-router-dom';
 import { Form, Formik } from 'formik';
 import * as yup from 'yup';
-import { EuiFlexGroup, EuiFlexItem, EuiResizableContainer } from '@elastic/eui';
-import { getCore } from '../../services';
+import {
+  EuiCodeBlock,
+  EuiEmptyPrompt,
+  EuiFlexGroup,
+  EuiFlexItem,
+  EuiResizableContainer,
+  EuiText,
+} from '@elastic/eui';
 
 import {
   Workflow,
   WorkflowConfig,
   WorkflowFormValues,
   WorkflowSchema,
 } from '../../../common';
-import { APP_PATH, uiConfigToFormik, uiConfigToSchema } from '../../utils';
+import {
+  reduceToTemplate,
+  uiConfigToFormik,
+  uiConfigToSchema,
+} from '../../utils';
 import { AppState, setDirty, useAppDispatch } from '../../store';
 import { WorkflowInputs } from './workflow_inputs';
 import { Workspace } from './workspace';
@@ -40,7 +49,6 @@ const TOOLS_PANEL_ID = 'tools_panel_id';
  */
 export function ResizableWorkspace(props: ResizableWorkspaceProps) {
   const dispatch = useAppDispatch();
-  const history = useHistory();
 
   // Overall workspace state
   const { isDirty } = useSelector((state: AppState) => state.workspace);
@@ -97,20 +105,15 @@ export function ResizableWorkspace(props: ResizableWorkspaceProps) {
     setIsToolsPanelOpen(!isToolsPanelOpen);
   };
 
-  // Hook to update some default values for the workflow, if applicable.
-  // We need to handle different scenarios:
-  // 1. Rendering backend-only-created workflow / an existing workflow with no ui_metadata.
-  //    In this case, we revert to the home page with a warn toast that we don't support it, for now.
-  // 2. Rendering a created workflow with ui_metadata.
-  //    In these cases, just render what is persisted, no action needed.
+  // workflow state
+  const [isValidWorkflow, setIsValidWorkflow] = useState<boolean>(true);
+
+  // Hook to check if the workflow is valid or not
   useEffect(() => {
     const missingUiFlow =
       props.workflow && !props.workflow?.ui_metadata?.config;
     if (missingUiFlow) {
-      history.replace(APP_PATH.WORKFLOWS);
-      getCore().notifications.toasts.addWarning(
-        `There is no ui_metadata for workflow: ${props.workflow?.name}`
-      );
+      setIsValidWorkflow(false);
     } else {
       setWorkflow(props.workflow);
     }
@@ -143,7 +146,7 @@ export function ResizableWorkspace(props: ResizableWorkspaceProps) {
     }
   }
 
-  return (
+  return isValidWorkflow ? (
     <Formik
       enableReinitialize={true}
       initialValues={formValues}
@@ -282,5 +285,28 @@ export function ResizableWorkspace(props: ResizableWorkspaceProps) {
         </Form>
       )}
     </Formik>
+  ) : (
+    <>
+      <EuiEmptyPrompt
+        iconType={'cross'}
+        title={<h2>Unable to view workflow details</h2>}
+        titleSize="s"
+        body={
+          <>
+            <EuiText>
+              Only valid workflows created from this OpenSearch Dashboards
+              application are editable and viewable.
+            </EuiText>
+          </>
+        }
+      />
+      <EuiCodeBlock language="json" fontSize="m" isCopyable={false}>
+        {JSON.stringify(
+          reduceToTemplate(props.workflow as Workflow),
+          undefined,
+          2
+        )}
+      </EuiCodeBlock>
+    </>
   );
 }

public/pages/workflow_detail/workflow_inputs/ingest_inputs/ingest_inputs.tsx

@@ -21,8 +21,6 @@ interface IngestInputsProps {
  * The base component containing all of the ingest-related inputs
  */
 export function IngestInputs(props: IngestInputsProps) {
-  // TODO: add some toggle to enable/disable ingest altogether.
-  // UX not finalized on where that will live currently
   return (
     <EuiFlexGroup direction="column">
       <EuiFlexItem grow={false}>

public/pages/workflow_detail/workflow_inputs/ingest_inputs/source_data.tsx

@@ -5,7 +5,12 @@
 
 import React, { useEffect } from 'react';
 import { useFormikContext } from 'formik';
-import { EuiFlexGroup, EuiFlexItem, EuiTitle } from '@elastic/eui';
+import {
+  EuiFilePicker,
+  EuiFlexGroup,
+  EuiFlexItem,
+  EuiTitle,
+} from '@elastic/eui';
 import { JsonField } from '../input_fields';
 import { IConfigField, WorkspaceFormValues } from '../../../../../common';
 
@@ -18,7 +23,15 @@ interface SourceDataProps {
  * Input component for configuring the source data for ingest.
  */
 export function SourceData(props: SourceDataProps) {
-  const { values } = useFormikContext<WorkspaceFormValues>();
+  const { values, setFieldValue } = useFormikContext<WorkspaceFormValues>();
+
+  // files state. when a file is read, update the form value.
+  const fileReader = new FileReader();
+  fileReader.onload = (e) => {
+    if (e.target) {
+      setFieldValue('ingest.docs', e.target.result);
+    }
+  };
 
   // Hook to listen when the docs form value changes.
   // Try to set the ingestDocs if possible
@@ -35,6 +48,19 @@ export function SourceData(props: SourceDataProps) {
           <h2>Source data</h2>
         </EuiTitle>
       </EuiFlexItem>
+      <EuiFlexItem grow={false}>
+        <EuiFilePicker
+          accept="application/json"
+          multiple={false}
+          initialPromptText="Select a JSON file containing documents"
+          onChange={(files) => {
+            if (files && files.length > 0) {
+              fileReader.readAsText(files[0]);
+            }
+          }}
+          display="default"
+        />
+      </EuiFlexItem>
       <EuiFlexItem grow={false}>
         <JsonField
           // We want to integrate docs into the form, but not persist in the config.