Fixes problem with one chart plotted for multiple y axis when migrating from an old SO

src/plugins/vis_types/xy/public/editor/components/options/metrics_axes/index.tsx

@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-import React, { useState, useEffect, useCallback, useMemo } from 'react';
+import React, { useState, useEffect, useCallback } from 'react';
 import { cloneDeep, get } from 'lodash';
 
 import { EuiSpacer } from '@elastic/eui';
@@ -19,14 +19,14 @@ import { SeriesPanel } from './series_panel';
 import { CategoryAxisPanel } from './category_axis_panel';
 import { ValueAxesPanel } from './value_axes_panel';
 import {
-  makeSerie,
   isAxisHorizontal,
   countNextAxisNumber,
   getUpdatedAxisName,
   mapPositionOpposite,
   mapPosition,
   mapPositionOpposingOpposite,
 } from './utils';
+import { getSeriesParams } from '../../../../utils/get_series_params';
 
 export type SetParamByIndex = <P extends keyof ValueAxis, O extends keyof SeriesParam>(
   axesName: 'valueAxes' | 'seriesParams',
@@ -273,40 +273,19 @@ function MetricsAxisOptions(props: ValidationVisOptionsProps<VisParams>) {
   );
 
   const schemaName = vis.type.schemas.metrics[0].name;
-  const metrics = useMemo(() => {
-    return aggs.bySchemaName(schemaName);
-  }, [schemaName, aggs]);
-
   const firstValueAxesId = stateParams.valueAxes[0].id;
 
   useEffect(() => {
-    const updatedSeries = metrics.map((agg) => {
-      const params = stateParams.seriesParams.find((param) => param.data.id === agg.id);
-      const label = agg.makeLabel();
-
-      // update labels for existing params or create new one
-      if (params) {
-        return {
-          ...params,
-          data: {
-            ...params.data,
-            label,
-          },
-        };
-      } else {
-        const series = makeSerie(
-          agg.id,
-          label,
-          firstValueAxesId,
-          stateParams.seriesParams[stateParams.seriesParams.length - 1]
-        );
-        return series;
-      }
-    });
+    const updatedSeries = getSeriesParams(
+      aggs,
+      stateParams.seriesParams,
+      schemaName,
+      firstValueAxesId
+    );
 
-    setValue('seriesParams', updatedSeries);
+    if (updatedSeries) setValue('seriesParams', updatedSeries);
     updateAxisTitle(updatedSeries);
-  }, [metrics, firstValueAxesId, setValue, stateParams.seriesParams, updateAxisTitle]);
+  }, [firstValueAxesId, setValue, stateParams.seriesParams, updateAxisTitle, aggs, schemaName]);
 
   return isTabSelected ? (
     <>

src/plugins/vis_types/xy/public/editor/components/options/metrics_axes/utils.ts

@@ -10,30 +10,7 @@ import { upperFirst } from 'lodash';
 
 import { Position } from '@elastic/charts';
 
-import { VisParams, ValueAxis, SeriesParam, ChartMode, InterpolationMode } from '../../../../types';
-import { ChartType } from '../../../../../common';
-
-export const makeSerie = (
-  id: string,
-  label: string,
-  defaultValueAxis: ValueAxis['id'],
-  lastSerie?: SeriesParam
-): SeriesParam => {
-  const data = { id, label };
-  const defaultSerie = {
-    show: true,
-    mode: ChartMode.Normal,
-    type: ChartType.Line,
-    drawLinesBetweenPoints: true,
-    showCircles: true,
-    circlesRadius: 3,
-    interpolate: InterpolationMode.Linear,
-    lineWidth: 2,
-    valueAxis: defaultValueAxis,
-    data,
-  };
-  return lastSerie ? { ...lastSerie, data } : defaultSerie;
-};
+import { VisParams, ValueAxis } from '../../../../types';
 
 export const isAxisHorizontal = (position: Position) =>
   [Position.Top, Position.Bottom].includes(position as any);

src/plugins/vis_types/xy/public/sample_vis.test.mocks.ts

@@ -1780,6 +1780,28 @@ export const sampleAreaVis = {
     },
     aggs: {
       typesRegistry: {},
+      bySchemaName: () => [
+        {
+          id: '1',
+          enabled: true,
+          type: 'sum',
+          params: {
+            field: 'total_quantity',
+          },
+          schema: 'metric',
+          makeLabel: () => 'Total quantity',
+          toSerializedFieldFormat: () => ({
+            id: 'number',
+            params: {
+              parsedUrl: {
+                origin: 'http://localhost:5801',
+                pathname: '/app/visualize',
+                basePath: '',
+              },
+            },
+          }),
+        },
+      ],
       getResponseAggs: () => [
         {
           id: '1',

src/plugins/vis_types/xy/public/to_ast.ts

@@ -33,6 +33,7 @@ import { visName, VisTypeXyExpressionFunctionDefinition } from './expression_fun
 import { XyVisType } from '../common';
 import { getEsaggsFn } from './to_ast_esaggs';
 import { TimeRangeBounds } from '../../../data/common';
+import { getSeriesParams } from './utils/get_series_params';
 
 const prepareLabel = (data: Labels) => {
   const label = buildExpressionFunction('label', {
@@ -145,6 +146,17 @@ export const toExpressionAst: VisToExpressionAst<VisParams> = async (vis, params
 
   const responseAggs = vis.data.aggs?.getResponseAggs().filter(({ enabled }) => enabled) ?? [];
 
+  const schemaName = vis.type.schemas?.metrics[0].name;
+  const firstValueAxesId = vis.params.valueAxes[0].id;
+  const updatedSeries = getSeriesParams(
+    vis.data.aggs,
+    vis.params.seriesParams,
+    schemaName,
+    firstValueAxesId
+  );
+
+  const finalSeriesParams = updatedSeries ?? vis.params.seriesParams;
+
   if (dimensions.x) {
     const xAgg = responseAggs[dimensions.x.accessor] as any;
     if (xAgg.type.name === BUCKET_TYPES.DATE_HISTOGRAM) {
@@ -202,7 +214,7 @@ export const toExpressionAst: VisToExpressionAst<VisParams> = async (vis, params
     orderBucketsBySum: vis.params.orderBucketsBySum,
     categoryAxes: vis.params.categoryAxes.map(prepareCategoryAxis),
     valueAxes: vis.params.valueAxes.map(prepareValueAxis),
-    seriesParams: vis.params.seriesParams.map(prepareSeriesParam),
+    seriesParams: finalSeriesParams.map(prepareSeriesParam),
     labels: prepareLabel(vis.params.labels),
     thresholdLine: prepareThresholdLine(vis.params.thresholdLine),
     gridCategoryLines: vis.params.grid.categoryLines,

src/plugins/vis_types/xy/public/utils/get_series_params.test.ts

@@ -0,0 +1,64 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+import type { AggConfigs } from '../../../../data/public';
+import type { SeriesParam } from '../types';
+import { getSeriesParams } from './get_series_params';
+import { sampleAreaVis } from '../sample_vis.test.mocks';
+
+describe('getSeriesParams', () => {
+  it('returns correct params', () => {
+    const seriesParams = getSeriesParams(
+      sampleAreaVis.data.aggs as unknown as AggConfigs,
+      sampleAreaVis.params.seriesParams as unknown as SeriesParam[],
+      'metric',
+      'ValueAxis-1'
+    );
+    expect(seriesParams).toStrictEqual([
+      {
+        circlesRadius: 5,
+        data: {
+          id: '1',
+          label: 'Total quantity',
+        },
+        drawLinesBetweenPoints: true,
+        interpolate: 'linear',
+        mode: 'stacked',
+        show: 'true',
+        showCircles: true,
+        type: 'area',
+        valueAxis: 'ValueAxis-1',
+      },
+    ]);
+  });
+
+  it('returns default params if no params provided', () => {
+    const seriesParams = getSeriesParams(
+      sampleAreaVis.data.aggs as unknown as AggConfigs,
+      [],
+      'metric',
+      'ValueAxis-1'
+    );
+    expect(seriesParams).toStrictEqual([
+      {
+        circlesRadius: 3,
+        data: {
+          id: '1',
+          label: 'Total quantity',
+        },
+        drawLinesBetweenPoints: true,
+        interpolate: 'linear',
+        lineWidth: 2,
+        mode: 'normal',
+        show: true,
+        showCircles: true,
+        type: 'line',
+        valueAxis: 'ValueAxis-1',
+      },
+    ]);
+  });
+});

src/plugins/vis_types/xy/public/utils/get_series_params.ts

@@ -0,0 +1,63 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+import { ValueAxis, SeriesParam, ChartMode, InterpolationMode } from '../types';
+import { ChartType } from '../../common';
+import type { AggConfigs } from '../../../../data/public';
+
+const makeSerie = (
+  id: string,
+  label: string,
+  defaultValueAxis: ValueAxis['id'],
+  lastSerie?: SeriesParam
+): SeriesParam => {
+  const data = { id, label };
+  const defaultSerie = {
+    show: true,
+    mode: ChartMode.Normal,
+    type: ChartType.Line,
+    drawLinesBetweenPoints: true,
+    showCircles: true,
+    circlesRadius: 3,
+    interpolate: InterpolationMode.Linear,
+    lineWidth: 2,
+    valueAxis: defaultValueAxis,
+  };
+  return { ...defaultSerie, ...lastSerie, data };
+};
+export const getSeriesParams = (
+  aggs: AggConfigs | undefined,
+  seriesParams: SeriesParam[],
+  schemaName: string,
+  firstValueAxesId: string
+) => {
+  const metrics = aggs?.bySchemaName(schemaName);
+
+  return metrics?.map((agg) => {
+    const params = seriesParams.find((param) => param.data.id === agg.id);
+    const label = agg.makeLabel();
+
+    // update labels for existing params or create new one
+    if (params) {
+      return {
+        ...params,
+        data: {
+          ...params.data,
+          label,
+        },
+      };
+    } else {
+      const series = makeSerie(
+        agg.id,
+        label,
+        firstValueAxesId,
+        seriesParams[seriesParams.length - 1]
+      );
+      return series;
+    }
+  });
+};

src/plugins/vis_types/xy/public/vis_types/area.ts

@@ -78,7 +78,7 @@ export const areaVisTypeDefinition = {
             truncate: 100,
           },
           title: {
-            text: defaultCountLabel,
+            text: '',
           },
           style: {},
         },

src/plugins/vis_types/xy/public/vis_types/histogram.ts

@@ -80,7 +80,7 @@ export const histogramVisTypeDefinition = {
             truncate: 100,
           },
           title: {
-            text: defaultCountLabel,
+            text: '',
           },
           style: {},
         },

src/plugins/vis_types/xy/public/vis_types/horizontal_bar.ts

@@ -81,7 +81,7 @@ export const horizontalBarVisTypeDefinition = {
             truncate: 100,
           },
           title: {
-            text: defaultCountLabel,
+            text: '',
           },
           style: {},
         },

src/plugins/vis_types/xy/public/vis_types/line.ts

@@ -78,7 +78,7 @@ export const lineVisTypeDefinition = {
             truncate: 100,
           },
           title: {
-            text: defaultCountLabel,
+            text: '',
           },
           style: {},
         },