directus

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import type { Flow, FlowRaw, Operation, OperationRaw } from '@directus/types';
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import { omit } from 'lodash-es';
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export function constructFlowTree(flow: FlowRaw): Flow {
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	const rootOperation = flow.operations.find((operation) => operation.id === flow.operation) ?? null;
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	const operationTree = constructOperationTree(rootOperation, flow.operations);
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	const flowTree: Flow = {
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		...omit(flow, 'operations'),
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		operation: operationTree,
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		options: flow.options ?? {},
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	};
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	return flowTree;
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}
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function constructOperationTree(root: OperationRaw | null, operations: OperationRaw[]): Operation | null {
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	if (root === null) {
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		return null;
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	}
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	const resolveOperation = root.resolve !== null ? operations.find((operation) => operation.id === root.resolve) : null;
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	const rejectOperation = root.reject !== null ? operations.find((operation) => operation.id === root.reject) : null;
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	if (resolveOperation === undefined || rejectOperation === undefined) {
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		throw new Error('Undefined reference in operations');
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	}
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	const operationTree: Operation = {
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		...omit(root, 'flow'),
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		resolve: constructOperationTree(resolveOperation, operations),
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		reject: constructOperationTree(rejectOperation, operations),
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	};
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	return operationTree;
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}
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