first commit

packages/nodes-base/nodes/Google/Sheet/v2/methods/resourceMapping.ts

@@ -0,0 +1,81 @@
+import type {
+	IDataObject,
+	ILoadOptionsFunctions,
+	ResourceMapperField,
+	ResourceMapperFields,
+} from 'n8n-workflow';
+
+import { GoogleSheet } from '../helpers/GoogleSheet';
+import { ROW_NUMBER, type ResourceLocator } from '../helpers/GoogleSheets.types';
+import { getSpreadsheetId } from '../helpers/GoogleSheets.utils';
+
+export async function getMappingColumns(
+	this: ILoadOptionsFunctions,
+): Promise<ResourceMapperFields> {
+	const documentId = this.getNodeParameter('documentId', 0) as IDataObject | null;
+
+	if (!documentId) return { fields: [] };
+
+	const { mode, value } = documentId;
+
+	const spreadsheetId = getSpreadsheetId(this.getNode(), mode as ResourceLocator, value as string);
+
+	const sheet = new GoogleSheet(spreadsheetId, this);
+	const sheetWithinDocument = this.getNodeParameter('sheetName', undefined, {
+		extractValue: true,
+	}) as string;
+	const { mode: sheetMode } = this.getNodeParameter('sheetName', 0) as { mode: ResourceLocator };
+
+	const { title: sheetName } = await sheet.spreadsheetGetSheet(
+		this.getNode(),
+		sheetMode,
+		sheetWithinDocument,
+	);
+
+	const locationDefine = this.getNodeParameter(
+		'options.locationDefine.values',
+		0,
+		{},
+	) as IDataObject;
+
+	let columnNamesRow = 1;
+
+	if (locationDefine.headerRow) {
+		columnNamesRow = locationDefine.headerRow as number;
+	}
+
+	const sheetData = await sheet.getData(
+		`${sheetName}!${columnNamesRow}:${columnNamesRow}`,
+		'FORMATTED_VALUE',
+	);
+
+	const columns = sheet.testFilter(sheetData || [], 0, 0).filter((col) => col !== '');
+
+	const fields: ResourceMapperField[] = columns.map((col) => ({
+		id: col,
+		displayName: col,
+		required: false,
+		defaultMatch: col === 'id',
+		display: true,
+		type: 'string',
+		canBeUsedToMatch: true,
+	}));
+
+	const operation = this.getNodeParameter('operation', 0) as string;
+
+	if (operation === 'update') {
+		fields.push({
+			id: ROW_NUMBER,
+			displayName: ROW_NUMBER,
+			required: false,
+			defaultMatch: false,
+			display: true,
+			type: 'number',
+			canBeUsedToMatch: true,
+			readOnly: true,
+			removed: true,
+		});
+	}
+
+	return { fields };
+}