refactor: Remove dead code from the Word Cloud plugin (#29594)

superset-frontend/plugins/plugin-chart-word-cloud/src/plugin/transformProps.ts

@@ -17,14 +17,61 @@
  * under the License.
  */
 
-import { ChartProps } from '@superset-ui/core';
-import { WordCloudProps } from '../chart/WordCloud';
+import { ChartProps, getColumnLabel } from '@superset-ui/core';
+import { WordCloudProps, WordCloudEncoding } from '../chart/WordCloud';
 import { WordCloudFormData } from '../types';
 
+function getMetricLabel(
+  metric: WordCloudFormData['metric'],
+): string | undefined {
+  if (typeof metric === 'string' || typeof metric === 'undefined') {
+    return metric;
+  }
+  if (Array.isArray(metric)) {
+    return metric.length > 0 ? getMetricLabel(metric[0]) : undefined;
+  }
+
+  return metric.label;
+}
+
 export default function transformProps(chartProps: ChartProps): WordCloudProps {
   const { width, height, formData, queriesData } = chartProps;
-  const { encoding, rotation, sliceId, colorScheme } =
-    formData as WordCloudFormData;
+  const {
+    colorScheme,
+    metric,
+    rotation,
+    series,
+    sizeFrom = 0,
+    sizeTo,
+    sliceId,
+  } = formData as WordCloudFormData;
+
+  const metricLabel = getMetricLabel(metric);
+  const seriesLabel = getColumnLabel(series);
+
+  const encoding: Partial<WordCloudEncoding> = {
+    color: {
+      field: seriesLabel,
+      scale: {
+        scheme: colorScheme,
+      },
+      type: 'nominal',
+    },
+    fontSize:
+      typeof metricLabel === 'undefined'
+        ? undefined
+        : {
+            field: metricLabel,
+            scale: {
+              range: [sizeFrom, sizeTo],
+              zero: true,
+            },
+            type: 'quantitative',
+          },
+    text: {
+      field: seriesLabel,
+    },
+  };
 
   return {
     data: queriesData[0].data,