import type { GraphDocument3d } from './types';
import { copyExpressionPresentation } from '#lib/document/expression-presentation.js';

/** Strip Svelte proxies before posting a 3D document to a Worker/Wasm call. */
export function toTransferableDocument3d(document: GraphDocument3d): GraphDocument3d {
	const copy: GraphDocument3d = {
		bounds: { ...document.bounds },
		expressions: document.expressions.map((expression) => {
			const result: GraphDocument3d['expressions'][number] = {
				id: expression.id,
				input_mode: expression.input_mode,
				source: expression.source,
				...copyExpressionPresentation(expression),
				enabled: expression.enabled,
				color: expression.color
			};

			if (expression.slider !== undefined) {
				result.slider = { ...expression.slider };
			}

			return result;
		})
	};

	if (document.name !== undefined) {
		copy.name = document.name;
	}

	if (document.complex_mode !== undefined) {
		copy.complex_mode = document.complex_mode;
	}

	if (document.variable_overrides !== undefined) {
		copy.variable_overrides = { ...document.variable_overrides };
	}

	return copy;
}