[Metrics UI] Replace uses of any introduced by Lodash 4

x-pack/plugins/infra/public/alerting/inventory/components/expression.tsx

@@ -85,7 +85,7 @@ interface Props {
     nodeType: InventoryItemType;
     filterQuery?: string;
     filterQueryText?: string;
-    sourceId?: string;
+    sourceId: string;
     alertOnNoData?: boolean;
   };
   alertInterval: string;
@@ -379,7 +379,7 @@ export const Expressions: React.FC<Props> = (props) => {
       <AlertPreview
         alertInterval={alertInterval}
         alertType={METRIC_INVENTORY_THRESHOLD_ALERT_TYPE_ID}
-        alertParams={pick(alertParams as any, 'criteria', 'nodeType', 'sourceId', 'filterQuery')}
+        alertParams={pick(alertParams, 'criteria', 'nodeType', 'sourceId', 'filterQuery')}
         validate={validateMetricThreshold}
         fetch={alertsContext.http.fetch}
         groupByDisplayName={alertParams.nodeType}

x-pack/plugins/infra/public/alerting/metric_threshold/components/expression.test.tsx

@@ -34,6 +34,7 @@ describe('Expression', () => {
       criteria: [],
       groupBy: undefined,
       filterQueryText: '',
+      sourceId: 'default',
     };
 
     const mocks = coreMock.createSetup();

x-pack/plugins/infra/public/alerting/metric_threshold/components/expression.tsx

@@ -400,7 +400,7 @@ export const Expressions: React.FC<Props> = (props) => {
       <AlertPreview
         alertInterval={alertInterval}
         alertType={METRIC_THRESHOLD_ALERT_TYPE_ID}
-        alertParams={pick(alertParams as any, 'criteria', 'groupBy', 'filterQuery', 'sourceId')}
+        alertParams={pick(alertParams, 'criteria', 'groupBy', 'filterQuery', 'sourceId')}
         showNoDataResults={alertParams.alertOnNoData}
         validate={validateMetricThreshold}
         fetch={alertsContext.http.fetch}

x-pack/plugins/infra/public/alerting/metric_threshold/components/expression_chart.tsx

@@ -84,14 +84,16 @@ export const ExpressionChart: React.FC<Props> = ({
   };
   const isDarkMode = context.uiSettings?.get('theme:darkMode') || false;
   const dateFormatter = useMemo(() => {
-    const firstSeries = data ? first(data.series) : null;
-    return firstSeries && firstSeries.rows.length > 0
-      ? niceTimeFormatter([
-          (first(firstSeries.rows) as any).timestamp,
-          (last(firstSeries.rows) as any).timestamp,
-        ])
-      : (value: number) => `${value}`;
-  }, [data]);
+    const firstSeries = first(data?.series);
+    const firstTimestamp = first(firstSeries?.rows)?.timestamp;
+    const lastTimestamp = last(firstSeries?.rows)?.timestamp;
+
+    if (firstTimestamp == null || lastTimestamp == null) {
+      return (value: number) => `${value}`;
+    }
+
+    return niceTimeFormatter([firstTimestamp, lastTimestamp]);
+  }, [data?.series]);
 
   /* eslint-disable-next-line react-hooks/exhaustive-deps */
   const yAxisFormater = useCallback(createFormatterForMetric(metric), [expression]);
@@ -138,8 +140,8 @@ export const ExpressionChart: React.FC<Props> = ({
     }),
   };
 
-  const firstTimestamp = (first(firstSeries.rows) as any).timestamp;
-  const lastTimestamp = (last(firstSeries.rows) as any).timestamp;
+  const firstTimestamp = first(firstSeries.rows)!.timestamp;
+  const lastTimestamp = last(firstSeries.rows)!.timestamp;
   const dataDomain = calculateDomain(series, [metric], false);
   const domain = {
     max: Math.max(dataDomain.max, last(thresholds) || dataDomain.max) * 1.1, // add 10% headroom.

x-pack/plugins/infra/public/alerting/metric_threshold/lib/transform_metrics_explorer_data.ts

@@ -13,9 +13,9 @@ export const transformMetricsExplorerData = (
   data: MetricsExplorerResponse | null
 ) => {
   const { criteria } = params;
-  if (criteria && data) {
-    const firstSeries = first(data.series) as any;
-    const series = firstSeries.rows.reduce((acc: any, row: any) => {
+  const firstSeries = first(data?.series);
+  if (criteria && firstSeries) {
+    const series = firstSeries.rows.reduce((acc, row) => {
       const { timestamp } = row;
       criteria.forEach((item, index) => {
         if (!acc[index]) {

x-pack/plugins/infra/public/alerting/metric_threshold/types.ts

@@ -55,7 +55,7 @@ export interface AlertParams {
   criteria: MetricExpression[];
   groupBy?: string[];
   filterQuery?: string;
-  sourceId?: string;
+  sourceId: string;
   filterQueryText?: string;
   alertOnNoData?: boolean;
 }

x-pack/plugins/infra/public/pages/metrics/inventory_view/components/waffle/legend_controls.tsx

@@ -266,7 +266,7 @@ export const LegendControls = ({
             fullWidth
             label={
               <SwatchLabel
-                color={first(paletteColors) as any}
+                color={first(paletteColors)!}
                 label={i18n.translate('xpack.infra.legendControls.minLabel', {
                   defaultMessage: 'Minimum',
                 })}
@@ -294,7 +294,7 @@ export const LegendControls = ({
             display="columnCompressed"
             label={
               <SwatchLabel
-                color={last(paletteColors) as any}
+                color={last(paletteColors)!}
                 label={i18n.translate('xpack.infra.legendControls.maxLabel', {
                   defaultMessage: 'Maxium',
                 })}

x-pack/plugins/infra/public/pages/metrics/inventory_view/lib/color_from_value.ts

@@ -68,8 +68,9 @@ export const calculateSteppedGradientColor = (
 
   // Since the stepped legend matches a range we need to ensure anything outside
   // the max bounds get's the maximum color.
-  if (gte(normalizedValue, (last(rules) as any).value)) {
-    return (last(rules) as any).color;
+  const lastRule = last(rules);
+  if (lastRule && gte(normalizedValue, lastRule.value)) {
+    return lastRule.color;
   }
 
   return rules.reduce((color: string, rule) => {
@@ -79,7 +80,7 @@ export const calculateSteppedGradientColor = (
       return rule.color;
     }
     return color;
-  }, (first(rules) as any).color || defaultColor);
+  }, first(rules)?.color ?? defaultColor);
 };
 
 export const calculateStepColor = (
@@ -106,7 +107,7 @@ export const calculateGradientColor = (
     return defaultColor;
   }
   if (rules.length === 1) {
-    return (last(rules) as any).color;
+    return last(rules)!.color;
   }
   const { min, max } = bounds;
   const sortedRules = sortBy(rules, 'value');
@@ -116,10 +117,8 @@ export const calculateGradientColor = (
       return rule;
     }
     return acc;
-  }, first(sortedRules)) as any;
-  const endRule = sortedRules
-    .filter((r) => r !== startRule)
-    .find((r) => r.value >= normValue) as any;
+  }, first(sortedRules))!;
+  const endRule = sortedRules.filter((r) => r !== startRule).find((r) => r.value >= normValue);
   if (!endRule) {
     return startRule.color;
   }

x-pack/plugins/infra/public/pages/metrics/inventory_view/lib/nodes_to_wafflemap.ts

@@ -29,8 +29,9 @@ function findOrCreateGroupWithNodes(
    * look for the full id. Otherwise we need to find the parent group and
    * then look for the group in it's sub groups.
    */
-  if (path.length === 2) {
-    const parentId = (first(path) as any).value;
+  const firstPath = first(path);
+  if (path.length === 2 && firstPath) {
+    const parentId = firstPath.value;
     const existingParentGroup = groups.find((g) => g.id === parentId);
     if (isWaffleMapGroupWithGroups(existingParentGroup)) {
       const existingSubGroup = existingParentGroup.groups.find((g) => g.id === id);

x-pack/plugins/infra/public/pages/metrics/metrics_explorer/components/chart.tsx

@@ -74,16 +74,13 @@ export const MetricsExplorerChart = ({
     const [from, to] = x;
     onTimeChange(moment(from).toISOString(), moment(to).toISOString());
   };
-  const dateFormatter = useMemo(
-    () =>
-      series.rows.length > 0
-        ? niceTimeFormatter([
-            (first(series.rows) as any).timestamp,
-            (last(series.rows) as any).timestamp,
-          ])
-        : (value: number) => `${value}`,
-    [series.rows]
-  );
+  const dateFormatter = useMemo(() => {
+    const firstRow = first(series.rows);
+    const lastRow = last(series.rows);
+    return firstRow && lastRow
+      ? niceTimeFormatter([firstRow.timestamp, lastRow.timestamp])
+      : (value: number) => `${value}`;
+  }, [series.rows]);
   const tooltipProps = {
     headerFormatter: useCallback(
       (data: TooltipValue) => moment(data.value).format(dateFormat || 'Y-MM-DD HH:mm:ss.SSS'),

x-pack/plugins/infra/server/lib/alerting/inventory_metric_threshold/evaluate_condition.ts

@@ -122,14 +122,14 @@ const getData = async (
     if (!nodes.length) return { [UNGROUPED_FACTORY_KEY]: null }; // No Data state
 
     return nodes.reduce((acc, n) => {
-      const nodePathItem = last(n.path) as any;
+      const { name: nodeName } = n;
       const m = first(n.metrics);
       if (m && m.value && m.timeseries) {
         const { timeseries } = m;
         const values = timeseries.rows.map((row) => row.metric_0) as Array<number | null>;
-        acc[nodePathItem.label] = values;
+        acc[nodeName] = values;
       } else {
-        acc[nodePathItem.label] = m && m.value;
+        acc[nodeName] = m && m.value;
       }
       return acc;
     }, {} as Record<string, number | Array<number | string | null | undefined> | undefined | null>);

x-pack/plugins/infra/server/lib/alerting/inventory_metric_threshold/inventory_metric_threshold_executor.ts

@@ -42,6 +42,8 @@ export const createInventoryMetricThresholdExecutor = (libs: InfraBackendLibs) =
     alertOnNoData,
   } = params as InventoryMetricThresholdParams;
 
+  if (criteria.length === 0) throw new Error('Cannot execute an alert with 0 conditions');
+
   const source = await libs.sources.getSourceConfiguration(
     services.savedObjectsClient,
     sourceId || 'default'
@@ -53,7 +55,7 @@ export const createInventoryMetricThresholdExecutor = (libs: InfraBackendLibs) =
     )
   );
 
-  const inventoryItems = Object.keys(first(results) as any);
+  const inventoryItems = Object.keys(first(results)!);
   for (const item of inventoryItems) {
     const alertInstance = services.alertInstanceFactory(`${item}`);
     // AND logic; all criteria must be across the threshold

x-pack/plugins/infra/server/lib/alerting/inventory_metric_threshold/preview_inventory_metric_threshold_alert.ts

@@ -40,6 +40,8 @@ export const previewInventoryMetricThresholdAlert = async ({
 }: PreviewInventoryMetricThresholdAlertParams) => {
   const { criteria, filterQuery, nodeType } = params as InventoryMetricThresholdParams;
 
+  if (criteria.length === 0) throw new Error('Cannot execute an alert with 0 conditions');
+
   const { timeSize, timeUnit } = criteria[0];
   const bucketInterval = `${timeSize}${timeUnit}`;
   const bucketIntervalInSeconds = getIntervalInSeconds(bucketInterval);
@@ -57,7 +59,7 @@ export const previewInventoryMetricThresholdAlert = async ({
       )
     );
 
-    const inventoryItems = Object.keys(first(results) as any);
+    const inventoryItems = Object.keys(first(results)!);
     const previewResults = inventoryItems.map((item) => {
       const numberOfResultBuckets = lookbackSize;
       const numberOfExecutionBuckets = Math.floor(numberOfResultBuckets / alertResultsPerExecution);

x-pack/plugins/infra/server/lib/alerting/metric_threshold/metric_threshold_executor.ts

@@ -22,6 +22,8 @@ export const createMetricThresholdExecutor = (libs: InfraBackendLibs) =>
   async function (options: AlertExecutorOptions) {
     const { services, params } = options;
     const { criteria } = params;
+    if (criteria.length === 0) throw new Error('Cannot execute an alert with 0 conditions');
+
     const { sourceId, alertOnNoData } = params as {
       sourceId?: string;
       alertOnNoData: boolean;
@@ -34,8 +36,8 @@ export const createMetricThresholdExecutor = (libs: InfraBackendLibs) =>
     const config = source.configuration;
     const alertResults = await evaluateAlert(services.callCluster, params, config);
 
-    // Because each alert result has the same group definitions, just grap the groups from the first one.
-    const groups = Object.keys(first(alertResults) as any);
+    // Because each alert result has the same group definitions, just grab the groups from the first one.
+    const groups = Object.keys(first(alertResults)!);
     for (const group of groups) {
       const alertInstance = services.alertInstanceFactory(`${group}`);
 
@@ -60,7 +62,7 @@ export const createMetricThresholdExecutor = (libs: InfraBackendLibs) =>
       let reason;
       if (nextState === AlertStates.ALERT) {
         reason = alertResults
-          .map((result) => buildFiredAlertReason(formatAlertResult(result[group]) as any))
+          .map((result) => buildFiredAlertReason(formatAlertResult(result[group])))
           .join('\n');
       }
       if (alertOnNoData) {
@@ -121,11 +123,13 @@ const mapToConditionsLookup = (
       {}
     );
 
-const formatAlertResult = (alertResult: {
-  metric: string;
-  currentValue: number;
-  threshold: number[];
-}) => {
+const formatAlertResult = <AlertResult>(
+  alertResult: {
+    metric: string;
+    currentValue: number;
+    threshold: number[];
+  } & AlertResult
+) => {
   const { metric, currentValue, threshold } = alertResult;
   if (!metric.endsWith('.pct')) return alertResult;
   const formatter = createFormatter('percent');

x-pack/plugins/infra/server/lib/alerting/metric_threshold/preview_metric_threshold_alert.ts

@@ -49,6 +49,8 @@ export const previewMetricThresholdAlert: (
   iterations = 0,
   precalculatedNumberOfGroups
 ) => {
+  if (params.criteria.length === 0) throw new Error('Cannot execute an alert with 0 conditions');
+
   // There are three different "intervals" we're dealing with here, so to disambiguate:
   // - The lookback interval, which is how long of a period of time we want to examine to count
   //   how many times the alert fired
@@ -70,7 +72,7 @@ export const previewMetricThresholdAlert: (
   // Get a date histogram using the bucket interval and the lookback interval
   try {
     const alertResults = await evaluateAlert(callCluster, params, config, timeframe);
-    const groups = Object.keys(first(alertResults) as any);
+    const groups = Object.keys(first(alertResults)!);
 
     // Now determine how to interpolate this histogram based on the alert interval
     const alertIntervalInSeconds = getIntervalInSeconds(alertInterval);
@@ -81,7 +83,7 @@ export const previewMetricThresholdAlert: (
         // buckets would have fired the alert. If the alert interval and bucket interval are the same,
         // this will be a 1:1 evaluation of the alert results. If these are different, the interpolation
         // will skip some buckets or read some buckets more than once, depending on the differential
-        const numberOfResultBuckets = (first(alertResults) as any)[group].shouldFire.length;
+        const numberOfResultBuckets = first(alertResults)![group].shouldFire.length;
         const numberOfExecutionBuckets = Math.floor(
           numberOfResultBuckets / alertResultsPerExecution
         );
@@ -120,8 +122,7 @@ export const previewMetricThresholdAlert: (
         ? await evaluateAlert(callCluster, params, config)
         : [];
       const numberOfGroups =
-        precalculatedNumberOfGroups ??
-        Math.max(Object.keys(first(currentAlertResults) as any).length, 1);
+        precalculatedNumberOfGroups ?? Math.max(Object.keys(first(currentAlertResults)!).length, 1);
       const estimatedTotalBuckets =
         (lookbackIntervalInSeconds / bucketIntervalInSeconds) * numberOfGroups;
       // The minimum number of slices is 2. In case we underestimate the total number of buckets
@@ -152,14 +153,16 @@ export const previewMetricThresholdAlert: (
           // `undefined` values occur if there is no data at all in a certain slice, and that slice
           // returns an empty array. This is different from an error or no data state,
           // so filter these results out entirely and only regard the resultA portion
-          .filter((value) => typeof value !== 'undefined')
+          .filter(
+            <Value>(value: Value): value is NonNullable<Value> => typeof value !== 'undefined'
+          )
           .reduce((a, b) => {
             if (!a) return b;
             if (!b) return a;
             return [a[0] + b[0], a[1] + b[1], a[2] + b[2]];
           })
       );
-      return zippedResult as any;
+      return zippedResult;
     } else throw e;
   }
 };

x-pack/plugins/infra/server/lib/snapshot/response_helpers.ts

@@ -127,7 +127,8 @@ export const getNodeMetrics = (
       avg: null,
     }));
   }
-  const lastBucket = findLastFullBucket(nodeBuckets, options) as any;
+  const lastBucket = findLastFullBucket(nodeBuckets, options);
+  if (!lastBucket) return [];
   return options.metrics.map((metric, index) => {
     const metricResult: SnapshotNodeMetric = {
       name: metric.type,

x-pack/plugins/infra/server/lib/snapshot/snapshot.ts

@@ -27,14 +27,16 @@ import { InfraSnapshotRequestOptions } from './types';
 import { createTimeRangeWithInterval } from './create_timerange_with_interval';
 import { SnapshotNode } from '../../../common/http_api/snapshot_api';
 
+type NamedSnapshotNode = SnapshotNode & { name: string };
+
 export type ESSearchClient = <Hit = {}, Aggregation = undefined>(
   options: CallWithRequestParams
 ) => Promise<InfraDatabaseSearchResponse<Hit, Aggregation>>;
 export class InfraSnapshot {
   public async getNodes(
     client: ESSearchClient,
     options: InfraSnapshotRequestOptions
-  ): Promise<{ nodes: SnapshotNode[]; interval: string }> {
+  ): Promise<{ nodes: NamedSnapshotNode[]; interval: string }> {
     // Both requestGroupedNodes and requestNodeMetrics may send several requests to elasticsearch
     // in order to page through the results of their respective composite aggregations.
     // Both chains of requests are supposed to run in parallel, and their results be merged
@@ -184,11 +186,12 @@ const mergeNodeBuckets = (
   nodeGroupByBuckets: InfraSnapshotNodeGroupByBucket[],
   nodeMetricsBuckets: InfraSnapshotNodeMetricsBucket[],
   options: InfraSnapshotRequestOptions
-): SnapshotNode[] => {
+): NamedSnapshotNode[] => {
   const nodeMetricsForLookup = getNodeMetricsForLookup(nodeMetricsBuckets);
 
   return nodeGroupByBuckets.map((node) => {
     return {
+      name: node.key.name || node.key.id, // For type safety; name can be derived from getNodePath but not in a TS-friendly way
       path: getNodePath(node, options),
       metrics: getNodeMetrics(nodeMetricsForLookup[node.key.id], options),
     };

x-pack/plugins/infra/server/routes/ip_to_hostname.ts

@@ -48,7 +48,7 @@ export const initIpToHostName = ({ framework }: InfraBackendLibs) => {
             body: { message: 'Host with matching IP address not found.' },
           });
         }
-        const hostDoc = first(hits.hits) as any;
+        const hostDoc = first(hits.hits)!;
         return response.ok({ body: { host: hostDoc._source.host.name } });
       } catch ({ statusCode = 500, message = 'Unknown error occurred' }) {
         return response.customError({