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80 lines
2.5 KiB
TypeScript
80 lines
2.5 KiB
TypeScript
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import type { EChartsCoreOption } from 'echarts/core';
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import type { CustomEChartOptions } from './eChartOptionsSchema';
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type PlainObject = Record<string, unknown>;
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function isPlainObject(value: unknown): value is PlainObject {
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return (
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typeof value === 'object' &&
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value !== null &&
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!Array.isArray(value) &&
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Object.prototype.toString.call(value) === '[object Object]'
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);
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}
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/**
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* Deep merges custom EChart options into base options.
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* Arrays are replaced entirely, objects are merged recursively.
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*
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* @param baseOptions - The base ECharts options object
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* @param customOptions - Custom options to merge (from safeParseEChartOptions)
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* @returns Merged ECharts options
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*/
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export function mergeCustomEChartOptions<T extends EChartsCoreOption>(
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baseOptions: T,
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customOptions: CustomEChartOptions | undefined,
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): T & Partial<CustomEChartOptions> {
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type MergedResult = T & Partial<CustomEChartOptions>;
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if (!customOptions) {
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return baseOptions as MergedResult;
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}
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const result = { ...baseOptions } as MergedResult;
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for (const key of Object.keys(customOptions) as Array<
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keyof typeof customOptions
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>) {
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const customValue = customOptions[key];
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const baseValue = result[key as keyof T];
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if (customValue === undefined) {
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continue;
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}
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if (isPlainObject(customValue) && isPlainObject(baseValue)) {
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// Recursively merge nested objects
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(result as PlainObject)[key] = mergeCustomEChartOptions(
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baseValue as EChartsCoreOption,
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customValue as CustomEChartOptions,
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);
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} else {
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// Replace arrays and primitive values directly
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(result as PlainObject)[key] = customValue;
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}
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}
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return result;
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}
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export default mergeCustomEChartOptions;
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