fix(theming): fix TimeTable chart issues (#34868)

superset-frontend/src/visualizations/TimeTable/utils/sparklineDataUtils/sparklineDataUtils.ts

@@ -0,0 +1,96 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import type { ColumnConfig, Entry } from '../../types';
+
+/**
+ * Parses time ratio from string or number
+ */
+export function parseTimeRatio(timeRatio: string | number): number {
+  return typeof timeRatio === 'string' ? parseInt(timeRatio, 10) : timeRatio;
+}
+
+/**
+ * Transforms entries into time ratio sparkline data
+ */
+export function transformTimeRatioData(
+  entries: Entry[],
+  valueField: string,
+  timeRatio: number,
+): (number | null)[] {
+  const sparkData: (number | null)[] = [];
+
+  for (let i = timeRatio; i < entries.length; i += 1) {
+    const prevData = entries[i - timeRatio][valueField];
+    if (prevData && prevData !== 0) {
+      sparkData.push(entries[i][valueField] / prevData);
+    } else {
+      sparkData.push(null);
+    }
+  }
+
+  return sparkData;
+}
+
+/**
+ * Transforms entries into regular sparkline data
+ */
+export function transformRegularData(
+  entries: Entry[],
+  valueField: string,
+): (number | null)[] {
+  return entries.map(d => d[valueField]);
+}
+
+/**
+ * Transforms entries into sparkline data based on column configuration
+ */
+export function transformSparklineData(
+  valueField: string,
+  column: ColumnConfig,
+  entries: Entry[],
+): (number | null)[] {
+  if (column.timeRatio) {
+    const timeRatio = parseTimeRatio(column.timeRatio);
+    return transformTimeRatioData(entries, valueField, timeRatio);
+  }
+
+  return transformRegularData(entries, valueField);
+}
+
+/**
+ * Parses dimension values with defaults
+ */
+export function parseSparklineDimensions(column: ColumnConfig) {
+  return {
+    width: parseInt(column.width || '300', 10),
+    height: parseInt(column.height || '50', 10),
+  };
+}
+
+/**
+ * Validates and formats y-axis bounds
+ */
+export function validateYAxisBounds(
+  yAxisBounds: unknown,
+): [number | undefined, number | undefined] {
+  if (Array.isArray(yAxisBounds) && yAxisBounds.length === 2)
+    return yAxisBounds as [number | undefined, number | undefined];
+
+  return [undefined, undefined];
+}