React JsonSchema Form schemaMerger

gistfile1.txt

const handleObject = (node, path, cUiNode) =>
    Object.fromEntries(Object.entries(node.properties).map(([prop, subschema]) => {
        const fullCPath = [...path, prop]
        return [prop, handleLayer(subschema, fullCPath, cUiNode[prop] ??= {})]
    }))

const handleArray = (node, path, cUiNode) => handleLayer(node.items, [...path, "items", cUiNode.items ??= {}])

const handleOneOfAnyOf = (node, path, cUiNode, oneOf = node.oneOf) => {
    oneOf.map(n => handleLayer(n, path, cUiNode)).forEach(o => Object.entries(o).forEach(([prop, subschema]) => cUiNode[prop] ??= subschema))
    return cUiNode
}

const handleLayer = (node, path, cUiNode) => {
    cUiNode ??= {}
    Object.entries(node).forEach(([key, pVal]) => {
        if (key.startsWith("ui:")) cUiNode[key] ??= pVal // Conflict Resolution: Keep UiSchema
    })
    if (node.type === "object") return handleObject(node, path, cUiNode)
    else if (node.type === "array") return handleArray(node, path, cUiNode)
    else if (node.oneOf) return handleOneOfAnyOf(node, path, cUiNode, node.oneOf)
    else if (node.anyOf) return handleOneOfAnyOf(node, path, cUiNode, node.anyOf)
    // Any other type should not recurse
    return cUiNode
}

export const extendUiSchemaWithSchemaAnnotations = (schema, uiSchema = {}) => {
    return handleLayer(deepCopy(schema), [], deepCopy(uiSchema))
}