vmui: Improve DownloadConfig button interaction with VMAnomaly (#6397)

Co-authored-by: Dzmitry Lazerka <dlazerka@gmail.com>

app/vmui/packages/vmui/package.json

@@ -71,6 +71,7 @@
     "eslint": "^8.44.0",
     "eslint-config-react-app": "^7.0.1",
     "eslint-plugin-react": "^7.29.4",
+    "http-proxy-middleware": "^3.0.0",
     "react-app-rewired": "^2.2.1",
     "webpack": "^5.88.1"
   },

app/vmui/packages/vmui/src/components/ExploreAnomaly/AnomalyConfig.tsx

@@ -9,6 +9,9 @@ import useDeviceDetect from "../../hooks/useDeviceDetect";
 import { useAppState } from "../../state/common/StateContext";
 import classNames from "classnames";
 import "./style.scss";
+import { useQueryState } from "../../state/query/QueryStateContext";
+import { useTimeState } from "../../state/time/TimeStateContext";
+import { getStepFromDuration } from "../../utils/time";
 
 const AnomalyConfig: FC = () => {
   const { serverUrl } = useAppState();
@@ -20,6 +23,8 @@ const AnomalyConfig: FC = () => {
     setFalse: setCloseModal,
   } = useBoolean(false);
 
+  const { query } = useQueryState();
+  const { period } = useTimeState();
   const [isLoading, setIsLoading] = useState(false);
   const [textConfig, setTextConfig] = useState<string>("");
   const [downloadUrl, setDownloadUrl] = useState<string>("");
@@ -28,15 +33,22 @@ const AnomalyConfig: FC = () => {
   const fetchConfig = async () => {
     setIsLoading(true);
     try {
-      const url = `${serverUrl}/api/vmanomaly/config.yaml`;
+      const queryParam = encodeURIComponent(query[0] || "");
+      const stepParam = encodeURIComponent(period.step || getStepFromDuration(period.end - period.start, false));
+
+      const url = `${serverUrl}/api/vmanomaly/config.yaml?query=${queryParam}&step=${stepParam}`;
       const response = await fetch(url);
+      const contentType = response.headers.get("Content-Type");
       if (!response.ok) {
-        setError(` ${response.status} ${response.statusText}`);
+        const bodyText = await response.text();
-      } else {
+        setError(` ${response.status} ${response.statusText}: ${bodyText}`);
+      } else if (contentType == "application/yaml") {
         const blob = await response.blob();
         const yamlAsString = await blob.text();
         setTextConfig(yamlAsString);
         setDownloadUrl(URL.createObjectURL(blob));
+      } else {
+        setError("Response Content-Type is not YAML, does `Server URL` point to VMAnomaly server?");
       }
     } catch (error) {
       console.error(error);

app/vmui/packages/vmui/src/components/Main/Modal/Modal.tsx

@@ -88,9 +88,11 @@ const Modal: FC<ModalProps> = ({
             </Button>
           </div>
         </div>
+        {/* tabIndex to fix Ctrl-A */}
         <div
           className="vm-modal-content-body"
           onMouseDown={handleMouseDown}
+          tabIndex={0}
         >
           {children}
         </div>

app/vmui/packages/vmui/src/hooks/useFetchQuery.ts

@@ -12,7 +12,7 @@ import { useTimeState } from "../state/time/TimeStateContext";
 import { useCustomPanelState } from "../state/customPanel/CustomPanelStateContext";
 import { isHistogramData } from "../utils/metric";
 import { useGraphState } from "../state/graph/GraphStateContext";
-import { getSecondsFromDuration, getStepFromDuration } from "../utils/time";
+import { getStepFromDuration } from "../utils/time";
 import { AppType } from "../types/appType";
 
 interface FetchQueryParams {
@@ -183,7 +183,7 @@ export const useFetchQuery = ({
       setQueryErrors(expr.map(() => ErrorTypes.validQuery));
     } else if (isValidHttpUrl(serverUrl)) {
       const updatedPeriod = { ...period };
-      updatedPeriod.step = isAnomalyUI ? `${getSecondsFromDuration(customStep)*1000}ms` : customStep;
+      updatedPeriod.step = customStep;
       return expr.map(q => displayChart
         ? getQueryRangeUrl(serverUrl, q, updatedPeriod, nocache, isTracingEnabled)
         : getQueryUrl(serverUrl, q, updatedPeriod, nocache, isTracingEnabled));

app/vmui/packages/vmui/src/pages/ExploreAnomaly/ExploreAnomaly.tsx

@@ -87,7 +87,7 @@ const ExploreAnomaly: FC = () => {
         setHideError={setHideError}
         stats={queryStats}
         onRunQuery={handleRunQuery}
-        hideButtons={{ addQuery: true, prettify: true, autocomplete: true, traceQuery: true, anomalyConfig: true }}
+        hideButtons={{ addQuery: true, prettify: false, autocomplete: false, traceQuery: true, anomalyConfig: true }}
       />
       {isLoading && <Spinner/>}
       {(!hideError && error) && <Alert variant="error">{error}</Alert>}

app/vmui/packages/vmui/src/setupProxy.js

@@ -0,0 +1,11 @@
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+module.exports = function (app) {
+  app.use(
+    "/api",
+    createProxyMiddleware({
+      target: "http://localhost:8490/api",
+      changeOrigin: true,
+    })
+  );
+};

app/vmui/packages/vmui/src/utils/time.ts

@@ -34,7 +34,7 @@ export const humanizeSeconds = (num: number): string => {
   return getDurationFromMilliseconds(dayjs.duration(num, "seconds").asMilliseconds());
 };
 
-export const roundStep = (step: number) => {
+export const roundStep = (step: number): string => {
   let result = roundToMilliseconds(step);
   const integerStep = Math.round(step);
 
@@ -87,7 +87,7 @@ export const getSecondsFromDuration = (dur: string) => {
   return dayjs.duration(durObject).asSeconds();
 };
 
-export const getStepFromDuration = (dur: number, histogram?: boolean) => {
+export const getStepFromDuration = (dur: number, histogram?: boolean): string => {
   const size = histogram ? MAX_ITEMS_PER_HISTOGRAM : MAX_ITEMS_PER_CHART;
   return roundStep(dur / size);
 };