import type { Ref } from 'vue';
import { ref } from 'vue';
import { NodeConnectionType } from 'n8n-workflow';
import type { Workflow } from 'n8n-workflow';
import { createPinia, setActivePinia } from 'pinia';
import { mock } from 'vitest-mock-extended';

import { useCanvasMapping } from '@/composables/useCanvasMapping';
import type { IWorkflowDb } from '@/Interface';
import {
	createTestWorkflowObject,
	mockNode,
	mockNodes,
	mockNodeTypeDescription,
} from '@/__tests__/mocks';
import { MANUAL_TRIGGER_NODE_TYPE, SET_NODE_TYPE } from '@/constants';
import { useNodeTypesStore } from '@/stores/nodeTypes.store';
import { useWorkflowsStore } from '../stores/workflows.store';

beforeEach(() => {
	const pinia = createPinia();
	setActivePinia(pinia);

	useNodeTypesStore().setNodeTypes([
		mockNodeTypeDescription({
			name: MANUAL_TRIGGER_NODE_TYPE,
		}),
		mockNodeTypeDescription({
			name: SET_NODE_TYPE,
		}),
	]);
});

afterEach(() => {
	vi.clearAllMocks();
});

describe('useCanvasMapping', () => {
	it('should initialize with default props', () => {
		const workflow = mock<IWorkflowDb>({
			nodes: [],
		});
		const workflowObject = createTestWorkflowObject(workflow);

		const { elements, connections } = useCanvasMapping({
			workflow: ref(workflow),
			workflowObject: ref(workflowObject) as Ref<Workflow>,
		});

		expect(elements.value).toEqual([]);
		expect(connections.value).toEqual([]);
	});

	describe('elements', () => {
		it('should map nodes to canvas elements', () => {
			const manualTriggerNode = mockNode({
				name: 'Manual Trigger',
				type: MANUAL_TRIGGER_NODE_TYPE,
				disabled: false,
			});
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode],
			});
			const workflowObject = createTestWorkflowObject(workflow);

			const { elements } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(elements.value).toEqual([
				{
					id: manualTriggerNode.id,
					label: manualTriggerNode.name,
					type: 'canvas-node',
					position: expect.anything(),
					data: {
						id: manualTriggerNode.id,
						type: manualTriggerNode.type,
						typeVersion: expect.anything(),
						disabled: false,
						execution: {
							status: 'new',
							running: false,
							waiting: undefined,
						},
						issues: {
							items: [],
							visible: false,
						},
						pinnedData: {
							count: 0,
							visible: false,
						},
						runData: {
							count: 0,
							visible: false,
						},
						inputs: [
							{
								index: 0,
								label: undefined,
								type: 'main',
							},
						],
						outputs: [
							{
								index: 0,
								label: undefined,
								type: 'main',
							},
						],
						connections: {
							input: {},
							output: {},
						},
						renderType: 'trigger',
					},
				},
			]);
		});

		it('should handle node disabled state', () => {
			const manualTriggerNode = mockNode({
				name: 'Manual Trigger',
				type: MANUAL_TRIGGER_NODE_TYPE,
				disabled: true,
			});
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode],
			});
			const workflowObject = createTestWorkflowObject(workflow);

			const { elements } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(elements.value[0]?.data?.disabled).toEqual(true);
		});

		it('should handle execution state', () => {
			const manualTriggerNode = mockNode({
				name: 'Manual Trigger',
				type: MANUAL_TRIGGER_NODE_TYPE,
				disabled: true,
			});
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode],
			});
			const workflowObject = createTestWorkflowObject(workflow);

			useWorkflowsStore().addExecutingNode(manualTriggerNode.name);

			const { elements } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(elements.value[0]?.data?.execution.running).toEqual(true);
		});

		it('should handle input and output connections', () => {
			const [manualTriggerNode, setNode] = mockNodes.slice(0, 2);
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode, setNode],
				connections: {
					[manualTriggerNode.name]: {
						[NodeConnectionType.Main]: [
							[{ node: setNode.name, type: NodeConnectionType.Main, index: 0 }],
						],
					},
				},
			});
			const workflowObject = createTestWorkflowObject(workflow);

			const { elements } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(elements.value[0]?.data?.connections.output).toHaveProperty(NodeConnectionType.Main);
			expect(elements.value[0]?.data?.connections.output[NodeConnectionType.Main][0][0]).toEqual(
				expect.objectContaining({
					node: setNode.name,
					type: NodeConnectionType.Main,
					index: 0,
				}),
			);

			expect(elements.value[1]?.data?.connections.input).toHaveProperty(NodeConnectionType.Main);
			expect(elements.value[1]?.data?.connections.input[NodeConnectionType.Main][0][0]).toEqual(
				expect.objectContaining({
					node: manualTriggerNode.name,
					type: NodeConnectionType.Main,
					index: 0,
				}),
			);
		});
	});

	describe('connections', () => {
		it('should map connections to canvas connections', () => {
			const [manualTriggerNode, setNode] = mockNodes.slice(0, 2);
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode, setNode],
				connections: {
					[manualTriggerNode.name]: {
						[NodeConnectionType.Main]: [
							[{ node: setNode.name, type: NodeConnectionType.Main, index: 0 }],
						],
					},
				},
			});
			const workflowObject = createTestWorkflowObject(workflow);

			const { connections } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(connections.value).toEqual([
				{
					data: {
						fromNodeName: manualTriggerNode.name,
						source: {
							index: 0,
							type: NodeConnectionType.Main,
						},
						status: undefined,
						target: {
							index: 0,
							type: NodeConnectionType.Main,
						},
					},
					id: `[${manualTriggerNode.id}/${NodeConnectionType.Main}/0][${setNode.id}/${NodeConnectionType.Main}/0]`,
					label: '',
					source: manualTriggerNode.id,
					sourceHandle: `outputs/${NodeConnectionType.Main}/0`,
					target: setNode.id,
					targetHandle: `inputs/${NodeConnectionType.Main}/0`,
					type: 'canvas-edge',
					animated: false,
				},
			]);
		});

		it('should map multiple input types to canvas connections', () => {
			const [manualTriggerNode, setNode] = mockNodes.slice(0, 2);
			const workflow = mock<IWorkflowDb>({
				nodes: [manualTriggerNode, setNode],
				connections: {
					[manualTriggerNode.name]: {
						[NodeConnectionType.AiTool]: [
							[{ node: setNode.name, type: NodeConnectionType.AiTool, index: 0 }],
						],
						[NodeConnectionType.AiDocument]: [
							[{ node: setNode.name, type: NodeConnectionType.AiDocument, index: 1 }],
						],
					},
				},
			});
			const workflowObject = createTestWorkflowObject(workflow);

			const { connections } = useCanvasMapping({
				workflow: ref(workflow),
				workflowObject: ref(workflowObject) as Ref<Workflow>,
			});

			expect(connections.value).toEqual([
				{
					data: {
						fromNodeName: manualTriggerNode.name,
						source: {
							index: 0,
							type: NodeConnectionType.AiTool,
						},
						status: undefined,
						target: {
							index: 0,
							type: NodeConnectionType.AiTool,
						},
					},
					id: `[${manualTriggerNode.id}/${NodeConnectionType.AiTool}/0][${setNode.id}/${NodeConnectionType.AiTool}/0]`,
					label: '',
					source: manualTriggerNode.id,
					sourceHandle: `outputs/${NodeConnectionType.AiTool}/0`,
					target: setNode.id,
					targetHandle: `inputs/${NodeConnectionType.AiTool}/0`,
					type: 'canvas-edge',
					animated: false,
				},
				{
					data: {
						fromNodeName: manualTriggerNode.name,
						source: {
							index: 0,
							type: NodeConnectionType.AiDocument,
						},
						status: undefined,
						target: {
							index: 1,
							type: NodeConnectionType.AiDocument,
						},
					},
					id: `[${manualTriggerNode.id}/${NodeConnectionType.AiDocument}/0][${setNode.id}/${NodeConnectionType.AiDocument}/1]`,
					label: '',
					source: manualTriggerNode.id,
					sourceHandle: `outputs/${NodeConnectionType.AiDocument}/0`,
					target: setNode.id,
					targetHandle: `inputs/${NodeConnectionType.AiDocument}/1`,
					type: 'canvas-edge',
					animated: false,
				},
			]);
		});
	});
});