Added index refresh to SQL API indexing policy editor (#306)

* Index refresh component introduced

- Made all notifications in Mongo Index editor have 12 font size
- Added indexing policy refresh to sql indexing policy editor
- Added "you have unsaved changes" message, replace old message for lazy indexing policy changes

* formatting changes

* addressed PR comments

src/Explorer/Controls/Settings/SettingsSubComponents/IndexingPolicyRefresh/IndexingPolicyRefreshComponent.test.tsx

@@ -0,0 +1,15 @@
+import { shallow } from "enzyme";
+import React from "react";
+import { IndexingPolicyRefreshComponentProps, IndexingPolicyRefreshComponent } from "./IndexingPolicyRefreshComponent";
+
+describe("IndexingPolicyRefreshComponent", () => {
+  it("renders", () => {
+    const props: IndexingPolicyRefreshComponentProps = {
+      indexTransformationProgress: 90,
+      refreshIndexTransformationProgress: () => new Promise(jest.fn())
+    };
+
+    const wrapper = shallow(<IndexingPolicyRefreshComponent {...props} />);
+    expect(wrapper).toMatchSnapshot();
+  });
+});

src/Explorer/Controls/Settings/SettingsSubComponents/IndexingPolicyRefresh/IndexingPolicyRefreshComponent.tsx

@@ -0,0 +1,62 @@
+import * as React from "react";
+import { MessageBar, MessageBarType } from "office-ui-fabric-react";
+import {
+  mongoIndexTransformationRefreshingMessage,
+  renderMongoIndexTransformationRefreshMessage
+} from "../../SettingsRenderUtils";
+import { handleError } from "../../../../../Common/ErrorHandlingUtils";
+import { isIndexTransforming } from "../../SettingsUtils";
+
+export interface IndexingPolicyRefreshComponentProps {
+  indexTransformationProgress: number;
+  refreshIndexTransformationProgress: () => Promise<void>;
+}
+
+interface IndexingPolicyRefreshComponentState {
+  isRefreshing: boolean;
+}
+
+export class IndexingPolicyRefreshComponent extends React.Component<
+  IndexingPolicyRefreshComponentProps,
+  IndexingPolicyRefreshComponentState
+> {
+  constructor(props: IndexingPolicyRefreshComponentProps) {
+    super(props);
+    this.state = {
+      isRefreshing: false
+    };
+  }
+
+  private onClickRefreshIndexingTransformationLink = async () => await this.refreshIndexTransformationProgress();
+
+  private renderIndexTransformationWarning = (): JSX.Element => {
+    if (this.state.isRefreshing) {
+      return mongoIndexTransformationRefreshingMessage;
+    } else if (isIndexTransforming(this.props.indexTransformationProgress)) {
+      return renderMongoIndexTransformationRefreshMessage(
+        this.props.indexTransformationProgress,
+        this.onClickRefreshIndexingTransformationLink
+      );
+    }
+    return undefined;
+  };
+
+  private refreshIndexTransformationProgress = async () => {
+    this.setState({ isRefreshing: true });
+    try {
+      await this.props.refreshIndexTransformationProgress();
+    } catch (error) {
+      handleError(error, "Refreshing index transformation progress failed.", "RefreshIndexTransformationProgress");
+    } finally {
+      this.setState({ isRefreshing: false });
+    }
+  };
+
+  public render(): JSX.Element {
+    return this.renderIndexTransformationWarning() ? (
+      <MessageBar messageBarType={MessageBarType.warning}>{this.renderIndexTransformationWarning()}</MessageBar>
+    ) : (
+      <></>
+    );
+  }
+}

src/Explorer/Controls/Settings/SettingsSubComponents/IndexingPolicyRefresh/__snapshots__/IndexingPolicyRefreshComponent.test.tsx.snap

@@ -0,0 +1,24 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`IndexingPolicyRefreshComponent renders 1`] = `
+<StyledMessageBarBase
+  messageBarType={5}
+>
+  <Text
+    styles={
+      Object {
+        "root": Object {
+          "fontSize": 12,
+        },
+      }
+    }
+  >
+    You can make more indexing changes once the current index transformation has completed. It is 90% complete. 
+    <StyledLinkBase
+      onClick={[Function]}
+    >
+      Refresh to check the progress.
+    </StyledLinkBase>
+  </Text>
+</StyledMessageBarBase>
+`;