const React = require("react");
const OperationScreen = require("../../../../src/tui/components/screens/OperationScreen.jsx");

// Mock dependencies
jest.mock("../../../../src/tui/providers/AppProvider.jsx");
jest.mock("../../../../src/tui/components/common/MenuList.jsx");

const {
	useAppState,
} = require("../../../../src/tui/providers/AppProvider.jsx");
const MenuList = require("../../../../src/tui/components/common/MenuList.jsx");

describe("OperationScreen", () => {
	let mockUseAppState;
	let mockNavigateBack;
	let mockUpdateOperationState;
	let mockUpdateUIState;

	beforeEach(() => {
		jest.clearAllMocks();

		// Setup default mocks
		mockNavigateBack = jest.fn();
		mockUpdateOperationState = jest.fn();
		mockUpdateUIState = jest.fn();

		mockUseAppState = {
			appState: {
				currentScreen: "operation",
				navigationHistory: ["main-menu"],
				configuration: {
					shopDomain: "test-store.myshopify.com",
					accessToken: "shpat_test_token",
					targetTag: "sale",
					priceAdjustment: 10,
					operationMode: "update",
					isValid: true,
					lastTested: new Date("2024-01-01T12:00:00Z"),
				},
				operationState: null,
				uiState: {
					focusedComponent: "menu",
					modalOpen: false,
					selectedMenuIndex: 0,
					scrollPosition: 0,
				},
			},
			navigateBack: mockNavigateBack,
			updateOperationState: mockUpdateOperationState,
			updateUIState: mockUpdateUIState,
		};

		useAppState.mockReturnValue(mockUseAppState);

		// Mock MenuList component
		MenuList.mockImplementation(
			({ items, selectedIndex, onSelect, onHighlight, ...props }) =>
				React.createElement("div", {
					...props,
					"data-testid": "menu-list",
					"data-items": JSON.stringify(items),
					"data-selected": selectedIndex,
				})
		);
	});

	describe("Component Creation and Structure", () => {
		test("component can be created", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();
			expect(component.type).toBe(OperationScreen);
		});

		test("component type is correct", () => {
			expect(typeof OperationScreen).toBe("function");
		});

		test("component initializes with valid configuration", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();
		});
	});

	describe("Operation Selection Interface", () => {
		test("creates operation menu items correctly", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Test that the component would create the correct menu structure
			const expectedOperations = [
				{
					value: "update",
					label: "Update Prices",
					shortcut: "u",
					description: "Increase/decrease prices by 10%",
				},
				{
					value: "rollback",
					label: "Rollback Prices",
					shortcut: "r",
					description: "Restore prices from compare-at prices",
				},
			];

			// Component should be able to handle these operations
			expect(expectedOperations).toHaveLength(2);
			expect(expectedOperations[0].value).toBe("update");
			expect(expectedOperations[1].value).toBe("rollback");
		});

		test("handles different price adjustment values", () => {
			mockUseAppState.appState.configuration.priceAdjustment = 15;
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should adapt to different price adjustment values
		});

		test("handles negative price adjustment", () => {
			mockUseAppState.appState.configuration.priceAdjustment = -20;
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should handle negative adjustments
		});
	});

	describe("Configuration Validation", () => {
		test("handles invalid configuration", () => {
			mockUseAppState.appState.configuration = {
				shopDomain: "",
				accessToken: "",
				targetTag: "",
				priceAdjustment: 0,
				operationMode: "update",
				isValid: false,
				lastTested: null,
			};

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should handle invalid configuration gracefully
		});

		test("validates configuration completeness", () => {
			const validConfig = {
				shopDomain: "test-store.myshopify.com",
				accessToken: "shpat_test_token",
				targetTag: "sale",
				priceAdjustment: 10,
				operationMode: "update",
				isValid: true,
				lastTested: new Date(),
			};

			mockUseAppState.appState.configuration = validConfig;
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should work with valid configuration
		});

		test("handles missing configuration fields", () => {
			mockUseAppState.appState.configuration = {
				isValid: false,
			};

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should handle incomplete configuration
		});
	});

	describe("Operation Mode Handling", () => {
		test("handles update operation mode", () => {
			mockUseAppState.appState.configuration.operationMode = "update";
			mockUseAppState.appState.configuration.priceAdjustment = 15;

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should handle update mode with price adjustment
		});

		test("handles rollback operation mode", () => {
			mockUseAppState.appState.configuration.operationMode = "rollback";

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should handle rollback mode
		});

		test("handles missing operation mode", () => {
			mockUseAppState.appState.configuration.operationMode = undefined;

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should default to update mode
		});
	});

	describe("State Management", () => {
		test("initializes with default state", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should initialize with proper default state
		});

		test("uses configuration operation mode as default", () => {
			mockUseAppState.appState.configuration.operationMode = "rollback";

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should use the configured operation mode
		});

		test("handles state transitions", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should be able to transition between views
		});
	});

	describe("Operation Execution", () => {
		test("can initiate operation execution", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should be able to start operations
		});

		test("updates operation state when executing", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should update operation state during execution
		});
	});

	describe("Error Handling", () => {
		test("handles missing configuration gracefully", () => {
			mockUseAppState.appState.configuration = null;

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Should not crash with null configuration
		});

		test("handles missing app state gracefully", () => {
			useAppState.mockReturnValue({
				appState: {},
				navigateBack: mockNavigateBack,
				updateOperationState: mockUpdateOperationState,
				updateUIState: mockUpdateUIState,
			});

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();
		});

		test("handles missing operation mode gracefully", () => {
			mockUseAppState.appState.configuration.operationMode = undefined;

			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Should default to update mode
		});
	});

	describe("Requirements Compliance", () => {
		test("implements operation selection interface (Requirement 3.1)", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should provide interface for selecting update/rollback operations
		});

		test("displays configuration summary before execution (Requirement 4.1)", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should show current configuration before allowing execution
		});

		test("supports navigation and history management (Requirement 7.2)", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should integrate with navigation system
		});
	});

	describe("Integration with Services", () => {
		test("integrates with app state management", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should use app state for configuration and operation state
		});

		test("uses MenuList component for operation selection", () => {
			const component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Component should use MenuList for consistent navigation
		});
	});

	describe("Mock Validation", () => {
		test("mocks are properly configured", () => {
			expect(jest.isMockFunction(useAppState)).toBe(true);
			expect(jest.isMockFunction(MenuList)).toBe(true);
		});

		test("component works with different mock configurations", () => {
			// Test with minimal mocks
			useAppState.mockReturnValue({
				appState: { configuration: {} },
				navigateBack: jest.fn(),
				updateOperationState: jest.fn(),
				updateUIState: jest.fn(),
			});

			let component = React.createElement(OperationScreen);
			expect(component).toBeDefined();

			// Test with full mocks
			useAppState.mockReturnValue({
				appState: {
					configuration: {
						shopDomain: "full-mock.myshopify.com",
						accessToken: "shpat_full_mock_token",
						targetTag: "full-mock-tag",
						priceAdjustment: 25,
						operationMode: "rollback",
						isValid: true,
						lastTested: new Date(),
					},
					operationState: {
						type: "update",
						status: "running",
						progress: 50,
					},
				},
				navigateBack: jest.fn(),
				updateOperationState: jest.fn(),
				updateUIState: jest.fn(),
			});

			component = React.createElement(OperationScreen);
			expect(component).toBeDefined();
		});
	});
});