@har-sdk/openapi-sampler/dist/traverse/VendorExampleExtractor.js

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import { VendorExtensions } from './VendorExtensions';
export class VendorExampleExtractor {
    extract(schema) {
        return [
            schema[VendorExtensions.X_EXAMPLE],
            schema[VendorExtensions.X_EXAMPLES]
        ].reduce((acc, example) => (acc ? acc : this.findExampleByShape(example, schema)), undefined);
    }
    findExampleByShape(example, schema) {
        const exampleShape = this.getExampleShape(schema);
        const isPrimitiveType = 0 === exampleShape.objectKeys.length && exampleShape.arrayDepth === 0;
        if (isPrimitiveType) {
            return example;
        }
        return this.traverse(example, exampleShape);
    }
    getExampleShape(schema, depth = 0) {
        if ('items' in schema) {
            return this.getExampleShape(schema.items, 1 + depth);
        }
        return {
            arrayDepth: depth,
            objectKeys: 'properties' in schema && schema.properties
                ? Object.keys(schema.properties)
                : []
        };
    }
    traverse(example, exampleShape, possibleExample = []) {
        if (!example || typeof example !== 'object') {
            return undefined;
        }
        if (exampleShape.arrayDepth > 0 && Array.isArray(example)) {
            return this.traverseArray(example, exampleShape, possibleExample);
        }
        return Array.isArray(example)
            ? undefined
            : this.traverseObject(example, exampleShape, possibleExample);
    }
    traverseArray(example, exampleShape, possibleExample) {
        if (exampleShape.arrayDepth > 0 && Array.isArray(example)) {
            possibleExample.push(example);
            return this.traverseArray([...example, undefined].shift(), {
                ...exampleShape,
                arrayDepth: exampleShape.arrayDepth - 1
            }, possibleExample);
        }
        return !!example && (Array.isArray(example) || exampleShape.arrayDepth > 0)
            ? undefined
            : this.traverseObject(example, exampleShape, possibleExample);
    }
    traverseObject(example, exampleShape, possibleExample) {
        const objectKeys = Object.keys(example !== null && example !== void 0 ? example : {});
        if (exampleShape.arrayDepth === 0 &&
            objectKeys.every((key) => exampleShape.objectKeys.includes(key))) {
            return possibleExample.length > 0 ? possibleExample.shift() : example;
        }
        return objectKeys
            .map((key) => this.traverse(example[key], exampleShape))
            .filter((obj) => !!obj)
            .shift();
    }
}
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