import { filterColumnTree } from '../../../../components/RealtimeTable/utils/columnUtils';
import { formatHeaderYear } from '../../../../components/RealtimeTable/utils/headerYearUtils';

export async function loadTemplateColumnTree(formType, sheet) {
	const configForm = formType === 'FORM_3' ? 'PROJECT' : formType;
	const { config } = await import(`../../../../components/RealtimeTable/constants/${configForm}/${sheet}.js`);
	return config.config.columns;
}

export async function loadTemplateColumns(formType, sheet, excludedKeys = []) {
	const tree = await loadTemplateColumnTree(formType, sheet);
	const options = [];
	const collect = (nodes, parents = []) => {
		for (const node of nodes) {
			const header = typeof node.header === 'string' ? formatHeaderYear(node.header) : '';
			const path = [...parents, header].filter(Boolean);
			if (node.columns?.length) collect(node.columns, path);
			else if (node.accessorKey?.startsWith('data.'))
				options.push({
					key: node.accessorKey.slice(5),
					label: path.join(' → '),
				});
		}
	};
	collect(filterColumnTree(tree, excludedKeys));
	return options;
}