import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
import { NodeOperationError } from 'n8n-workflow';

import * as itemList from './itemList';
import type { ItemListsType } from './node.type';

export async function router(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
	let returnData: INodeExecutionData[] = [];

	const items = this.getInputData();
	const resource = this.getNodeParameter<ItemListsType>('resource', 0);
	const operation = this.getNodeParameter('operation', 0);

	const itemListsNodeData = {
		resource,
		operation,
	} as ItemListsType;

	switch (itemListsNodeData.resource) {
		case 'itemList':
			returnData = await itemList[itemListsNodeData.operation].execute.call(this, items);
			break;
		default:
			throw new NodeOperationError(
				this.getNode(),
				`The operation "${operation}" is not supported!`,
			);
	}

	return [returnData];
}