feat: added new and cloned panel at the bottom of the page (#6993)

* feat: added new and cloned panel at the bottom of the page

* feat: added common util and took possible space available in last row in account

* feat: added changes for empty layout

* feat: added different test cases

* feat: remove console.log

* feat: added default value to widgetWidth

frontend/src/container/GridCardLayout/GridCard/WidgetGraphComponent.tsx

@@ -6,6 +6,7 @@ import { ToggleGraphProps } from 'components/Graph/types';
 import { SOMETHING_WENT_WRONG } from 'constants/api';
 import { QueryParams } from 'constants/query';
 import { PANEL_TYPES } from 'constants/queryBuilder';
+import { placeWidgetAtBottom } from 'container/NewWidget/utils';
 import PanelWrapper from 'container/PanelWrapper/PanelWrapper';
 import { useUpdateDashboard } from 'hooks/dashboard/useUpdateDashboard';
 import { useNotifications } from 'hooks/useNotifications';
@@ -133,18 +134,14 @@ function WidgetGraphComponent({
 			(l) => l.i === widget.id,
 		);
 
-		// added the cloned panel on the top as it is given most priority when arranging
-		// in the layout. React_grid_layout assigns priority from top, hence no random position for cloned panel
-		const layout = [
-			{
-				i: uuid,
-				w: originalPanelLayout?.w || 6,
-				x: 0,
-				h: originalPanelLayout?.h || 6,
-				y: 0,
-			},
-			...(selectedDashboard.data.layout || []),
-		];
+		const newLayoutItem = placeWidgetAtBottom(
+			uuid,
+			selectedDashboard?.data.layout || [],
+			originalPanelLayout?.w || 6,
+			originalPanelLayout?.h || 6,
+		);
+
+		const layout = [...(selectedDashboard.data.layout || []), newLayoutItem];
 
 		updateDashboardMutation.mutateAsync(
 			{

frontend/src/container/NewWidget/__test__/NewWidget.test.tsx

@@ -0,0 +1,92 @@
+// This test suite covers several important scenarios:
+// - Empty layout - widget should be placed at origin (0,0)
+// - Empty layout with custom dimensions
+// - Placing widget next to an existing widget when there's space in the last row
+// - Placing widget at bottom when the last row is full
+// - Handling multiple rows correctly
+// - Handling widgets with different heights
+
+import { placeWidgetAtBottom } from '../utils';
+
+describe('placeWidgetAtBottom', () => {
+	it('should place widget at (0,0) when layout is empty', () => {
+		const result = placeWidgetAtBottom('widget1', []);
+		expect(result).toEqual({
+			i: 'widget1',
+			x: 0,
+			y: 0,
+			w: 6,
+			h: 6,
+		});
+	});
+
+	it('should place widget at (0,0) with custom dimensions when layout is empty', () => {
+		const result = placeWidgetAtBottom('widget1', [], 4, 8);
+		expect(result).toEqual({
+			i: 'widget1',
+			x: 0,
+			y: 0,
+			w: 4,
+			h: 8,
+		});
+	});
+
+	it('should place widget next to existing widget in last row if space available', () => {
+		const existingLayout = [{ i: 'widget1', x: 0, y: 0, w: 6, h: 6 }];
+		const result = placeWidgetAtBottom('widget2', existingLayout);
+		expect(result).toEqual({
+			i: 'widget2',
+			x: 6,
+			y: 0,
+			w: 6,
+			h: 6,
+		});
+	});
+
+	it('should place widget at bottom when last row is full', () => {
+		const existingLayout = [
+			{ i: 'widget1', x: 0, y: 0, w: 6, h: 6 },
+			{ i: 'widget2', x: 6, y: 0, w: 6, h: 6 },
+		];
+		const result = placeWidgetAtBottom('widget3', existingLayout);
+		expect(result).toEqual({
+			i: 'widget3',
+			x: 0,
+			y: 6,
+			w: 6,
+			h: 6,
+		});
+	});
+
+	it('should handle multiple rows correctly', () => {
+		const existingLayout = [
+			{ i: 'widget1', x: 0, y: 0, w: 6, h: 6 },
+			{ i: 'widget2', x: 6, y: 0, w: 6, h: 6 },
+			{ i: 'widget3', x: 0, y: 6, w: 6, h: 6 },
+		];
+		const result = placeWidgetAtBottom('widget4', existingLayout);
+		expect(result).toEqual({
+			i: 'widget4',
+			x: 6,
+			y: 6,
+			w: 6,
+			h: 6,
+		});
+	});
+
+	it('should handle widgets with different heights', () => {
+		const existingLayout = [
+			{ i: 'widget1', x: 0, y: 0, w: 6, h: 8 },
+			{ i: 'widget2', x: 6, y: 0, w: 6, h: 4 },
+		];
+		const result = placeWidgetAtBottom('widget3', existingLayout);
+		// y = 2 here as later the react-grid-layout will add 2px to the y value while adjusting the layout
+		expect(result).toEqual({
+			i: 'widget3',
+			x: 6,
+			y: 2,
+			w: 6,
+			h: 6,
+		});
+	});
+});

frontend/src/container/NewWidget/index.tsx

@@ -58,6 +58,7 @@ import {
 	getDefaultWidgetData,
 	getIsQueryModified,
 	handleQueryChange,
+	placeWidgetAtBottom,
 } from './utils';
 
 function NewWidget({ selectedGraph }: NewWidgetProps): JSX.Element {
@@ -363,20 +364,14 @@ function NewWidget({ selectedGraph }: NewWidgetProps): JSX.Element {
 			return;
 		}
 
-		const widgetId = query.get('widgetId');
+		const widgetId = query.get('widgetId') || '';
 		let updatedLayout = selectedDashboard.data.layout || [];
+
 		if (isNewDashboard) {
-			updatedLayout = [
-				{
-					i: widgetId || '',
-					w: 6,
-					x: 0,
-					h: 6,
-					y: 0,
-				},
-				...updatedLayout,
-			];
+			const newLayoutItem = placeWidgetAtBottom(widgetId, updatedLayout);
+			updatedLayout = [...updatedLayout, newLayoutItem];
 		}
+
 		const dashboard: Dashboard = {
 			...selectedDashboard,
 			uuid: selectedDashboard.uuid,

frontend/src/container/NewWidget/utils.ts

@@ -10,7 +10,8 @@ import {
 	PANEL_TYPES_INITIAL_QUERY,
 } from 'container/NewDashboard/ComponentsSlider/constants';
 import { categoryToSupport } from 'container/QueryBuilder/filters/BuilderUnitsFilter/config';
-import { cloneDeep, isEmpty, isEqual, set, unset } from 'lodash-es';
+import { cloneDeep, defaultTo, isEmpty, isEqual, set, unset } from 'lodash-es';
+import { Layout } from 'react-grid-layout';
 import { Widgets } from 'types/api/dashboard/getAll';
 import { IBuilderQuery, Query } from 'types/api/queryBuilder/queryBuilderData';
 import { EQueryType } from 'types/common/dashboard';
@@ -575,3 +576,58 @@ export const unitOptions = (columnUnit: string): DefaultOptionType[] => {
 			options: getCategorySelectOptionByName(filteredCategory),
 		}));
 };
+
+export const placeWidgetAtBottom = (
+	widgetId: string,
+	layout: Layout[],
+	widgetWidth?: number,
+	widgetHeight?: number,
+): Layout => {
+	if (layout.length === 0) {
+		return { i: widgetId, x: 0, y: 0, w: widgetWidth || 6, h: widgetHeight || 6 };
+	}
+
+	// Find the maximum Y coordinate and height
+	const { maxY } = layout.reduce(
+		(acc, curr) => ({
+			maxY: Math.max(acc.maxY, curr.y + curr.h),
+		}),
+		{ maxY: 0 },
+	);
+
+	// Check for available space in the last row
+	const lastRowWidgets = layout.filter((item) => item.y + item.h === maxY);
+	const occupiedXInLastRow = lastRowWidgets.reduce(
+		(acc, widget) => acc + widget.w,
+		0,
+	);
+
+	// If there's space in the last row (total width < 12)
+	if (occupiedXInLastRow < 12) {
+		// Find the rightmost X coordinate in the last row
+		const maxXInLastRow = lastRowWidgets.reduce(
+			(acc, widget) => Math.max(acc, widget.x + widget.w),
+			0,
+		);
+
+		// If there's enough space for a 6-width widget
+		if (maxXInLastRow + defaultTo(widgetWidth, 6) <= 12) {
+			return {
+				i: widgetId,
+				x: maxXInLastRow,
+				y: maxY - (widgetHeight || 6), // Align with the last row
+				w: widgetWidth || 6,
+				h: widgetHeight || 6,
+			};
+		}
+	}
+
+	// If no space in last row, place at the bottom
+	return {
+		i: widgetId,
+		x: 0,
+		y: maxY,
+		w: widgetWidth || 6,
+		h: widgetHeight || 6,
+	};
+};

frontend/src/hooks/dashboard/utils.ts

@@ -1,5 +1,6 @@
 import { PANEL_TYPES } from 'constants/queryBuilder';
 import { convertKeysToColumnFields } from 'container/LogsExplorerList/utils';
+import { placeWidgetAtBottom } from 'container/NewWidget/utils';
 import { Dashboard } from 'types/api/dashboard/getAll';
 import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
 import { Query } from 'types/api/queryBuilder/queryBuilderData';
@@ -22,20 +23,16 @@ export const addEmptyWidgetInDashboardJSONWithQuery = (
 		...convertKeysToColumnFields(selectedColumns || []),
 	];
 
+	const newLayoutItem = placeWidgetAtBottom(
+		widgetId,
+		dashboard?.data?.layout || [],
+	);
+
 	return {
 		...dashboard,
 		data: {
 			...dashboard.data,
-			layout: [
-				{
-					i: widgetId,
-					w: 6,
-					x: 0,
-					h: 6,
-					y: 0,
-				},
-				...(dashboard?.data?.layout || []),
-			],
+			layout: [...(dashboard?.data?.layout || []), newLayoutItem],
 			widgets: [
 				...(dashboard?.data?.widgets || []),
 				{