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");
jest.mock("../../../../src/tui/components/common/ProgressBar.jsx");

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

describe("OperationScreen - Results Display", () => {
	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 components
		MenuList.mockImplementation(
			({ items, selectedIndex, onSelect, onHighlight, ...props }) =>
				React.createElement("div", {
					...props,
					"data-testid": "menu-list",
					"data-items": JSON.stringify(items),
					"data-selected": selectedIndex,
				})
		);

		ProgressBar.mockImplementation(({ progress, label, color, ...props }) =>
			React.createElement("div", {
				...props,
				"data-testid": "progress-bar",
				"data-progress": progress,
				"data-label": label,
				"data-color": color,
			})
		);
	});

	describe("Results Summary Display", () => {
		test("displays successful operation results", () => {
			const startTime = new Date("2024-01-01T12:00:00Z");
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime,
				results: {
					totalProducts: 50,
					totalVariants: 75,
					successfulUpdates: 70,
					failedUpdates: 5,
					errors: [],
				},
			};

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

			// Component should display successful operation results
		});

		test("displays rollback operation results", () => {
			const startTime = new Date("2024-01-01T12:00:00Z");
			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime,
				results: {
					totalProducts: 30,
					totalVariants: 45,
					eligibleVariants: 40,
					successfulRollbacks: 35,
					failedRollbacks: 3,
					skippedVariants: 2,
					errors: [],
				},
			};

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

			// Component should display rollback-specific results
		});

		test("calculates and displays success rate correctly", () => {
			const testCases = [
				{
					successful: 90,
					failed: 10,
					expectedRate: 90,
				},
				{
					successful: 50,
					failed: 50,
					expectedRate: 50,
				},
				{
					successful: 100,
					failed: 0,
					expectedRate: 100,
				},
				{
					successful: 0,
					failed: 10,
					expectedRate: 0,
				},
			];

			testCases.forEach(({ successful, failed, expectedRate }) => {
				mockUseAppState.appState.operationState = {
					type: "update",
					status: "completed",
					progress: 100,
					startTime: new Date(),
					results: {
						totalProducts: 50,
						successfulUpdates: successful,
						failedUpdates: failed,
						errors: [],
					},
				};

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

				// Component should calculate correct success rate
			});
		});

		test("displays operation duration", () => {
			const startTime = new Date(Date.now() - 120000); // 2 minutes ago
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime,
				results: {
					totalProducts: 25,
					successfulUpdates: 25,
					failedUpdates: 0,
					errors: [],
				},
			};

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

			// Component should display operation duration
		});
	});

	describe("Error Display Panel", () => {
		test("displays error list when errors are present", () => {
			const errors = [
				{
					productId: "prod1",
					productTitle: "Test Product 1",
					variantId: "var1",
					errorMessage: "Rate limit exceeded",
					errorType: "Rate Limiting",
				},
				{
					productId: "prod2",
					productTitle: "Test Product 2",
					variantId: "var2",
					errorMessage: "Network timeout",
					errorType: "Network Issues",
				},
			];

			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 50,
					successfulUpdates: 48,
					failedUpdates: 2,
					errors,
				},
			};

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

			// Component should display error list
		});

		test("limits error display to first 5 errors", () => {
			const errors = Array.from({ length: 10 }, (_, i) => ({
				productId: `prod${i + 1}`,
				productTitle: `Test Product ${i + 1}`,
				variantId: `var${i + 1}`,
				errorMessage: `Error ${i + 1}`,
				errorType: "Other",
			}));

			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 50,
					successfulRollbacks: 40,
					failedRollbacks: 10,
					errors,
				},
			};

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

			// Component should limit error display and show count
		});

		test("categorizes and displays error breakdown", () => {
			const errors = [
				{ errorMessage: "Rate limit exceeded", errorType: "Rate Limiting" },
				{ errorMessage: "Rate limit exceeded", errorType: "Rate Limiting" },
				{ errorMessage: "Network timeout", errorType: "Network Issues" },
				{ errorMessage: "Invalid price", errorType: "Data Validation" },
			];

			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 50,
					successfulUpdates: 46,
					failedUpdates: 4,
					errors,
				},
			};

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

			// Component should categorize and display error breakdown
		});

		test("handles errors without error types", () => {
			const errors = [
				{
					productTitle: "Test Product",
					errorMessage: "Rate limit exceeded",
					// No errorType provided
				},
				{
					productTitle: "Another Product",
					errorMessage: "Network connection failed",
					// No errorType provided
				},
			];

			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 50,
					successfulUpdates: 48,
					failedUpdates: 2,
					errors,
				},
			};

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

			// Component should categorize errors automatically
		});
	});

	describe("System Error Display", () => {
		test("displays system error when operation fails", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "error",
				progress: 45,
				startTime: new Date(),
				results: {
					error: "Failed to connect to Shopify API",
					totalProducts: 0,
					successfulUpdates: 0,
					failedUpdates: 0,
					errors: [],
				},
			};

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

			// Component should display system error
		});

		test("handles missing error message gracefully", () => {
			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "error",
				progress: 30,
				startTime: new Date(),
				results: {
					// No error message provided
					totalProducts: 0,
					successfulRollbacks: 0,
					failedRollbacks: 0,
					errors: [],
				},
			};

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

			// Component should handle missing error message
		});
	});

	describe("Configuration Summary", () => {
		test("displays operation configuration for update", () => {
			mockUseAppState.appState.configuration.priceAdjustment = 15;
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 25,
					successfulUpdates: 25,
					failedUpdates: 0,
					errors: [],
				},
			};

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

			// Component should display configuration including price adjustment
		});

		test("displays operation configuration for rollback", () => {
			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 20,
					successfulRollbacks: 18,
					failedRollbacks: 2,
					errors: [],
				},
			};

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

			// Component should display configuration without price adjustment
		});

		test("handles negative price adjustment", () => {
			mockUseAppState.appState.configuration.priceAdjustment = -25;
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 30,
					successfulUpdates: 30,
					failedUpdates: 0,
					errors: [],
				},
			};

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

			// Component should display negative price adjustment correctly
		});
	});

	describe("Action Buttons and Navigation", () => {
		test("provides action buttons for completed operations", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 40,
					successfulUpdates: 38,
					failedUpdates: 2,
					errors: [],
				},
			};

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

			// Component should provide action buttons
		});

		test("provides navigation instructions", () => {
			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 35,
					successfulRollbacks: 33,
					failedRollbacks: 2,
					errors: [],
				},
			};

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

			// Component should provide navigation instructions
		});
	});

	describe("Requirements Compliance", () => {
		test("displays results summary for completed operations (Requirement 3.4)", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 60,
					successfulUpdates: 55,
					failedUpdates: 5,
					errors: [],
				},
			};

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

			// Component should display comprehensive results summary
		});

		test("implements error display panel for operation failures (Requirement 3.5)", () => {
			const errors = [
				{
					productTitle: "Failed Product",
					errorMessage: "Validation failed",
					errorType: "Data Validation",
				},
			];

			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 30,
					successfulRollbacks: 29,
					failedRollbacks: 1,
					errors,
				},
			};

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

			// Component should implement error display panel
		});

		test("provides performance and completion information (Requirement 4.3)", () => {
			const startTime = new Date(Date.now() - 180000); // 3 minutes ago
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime,
				results: {
					totalProducts: 100,
					successfulUpdates: 95,
					failedUpdates: 5,
					errors: [],
				},
			};

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

			// Component should provide performance information
		});

		test("displays enhanced visual feedback (Requirement 6.1)", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					totalProducts: 45,
					successfulUpdates: 40,
					failedUpdates: 5,
					errors: [],
				},
			};

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

			// Component should provide enhanced visual feedback
		});
	});

	describe("Error Handling in Results Display", () => {
		test("handles missing operation state gracefully", () => {
			mockUseAppState.appState.operationState = null;

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

			// Component should handle null operation state
		});

		test("handles missing results gracefully", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: null,
			};

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

			// Component should handle null results
		});

		test("handles incomplete results gracefully", () => {
			mockUseAppState.appState.operationState = {
				type: "rollback",
				status: "completed",
				progress: 100,
				startTime: new Date(),
				results: {
					// Missing some expected fields
					totalProducts: 20,
				},
			};

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

			// Component should handle incomplete results
		});

		test("handles invalid start time gracefully", () => {
			mockUseAppState.appState.operationState = {
				type: "update",
				status: "completed",
				progress: 100,
				startTime: null,
				results: {
					totalProducts: 30,
					successfulUpdates: 30,
					failedUpdates: 0,
					errors: [],
				},
			};

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

			// Component should handle null start time
		});
	});

	describe("Error Categorization", () => {
		test("categorizes different error types correctly", () => {
			const errorMessages = [
				{ message: "Rate limit exceeded", expected: "Rate Limiting" },
				{ message: "Network timeout occurred", expected: "Network Issues" },
				{ message: "Authentication failed", expected: "Authentication" },
				{ message: "Permission denied", expected: "Permissions" },
				{ message: "Product not found", expected: "Resource Not Found" },
				{ message: "Invalid price value", expected: "Data Validation" },
				{ message: "Internal server error", expected: "Server Errors" },
				{ message: "Shopify API error", expected: "Shopify API" },
				{ message: "Unknown error occurred", expected: "Other" },
			];

			errorMessages.forEach(({ message, expected }) => {
				const errors = [{ errorMessage: message }];

				mockUseAppState.appState.operationState = {
					type: "update",
					status: "completed",
					progress: 100,
					startTime: new Date(),
					results: {
						totalProducts: 10,
						successfulUpdates: 9,
						failedUpdates: 1,
						errors,
					},
				};

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

				// Component should categorize error correctly
			});
		});
	});

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

		test("component works with different result states", () => {
			const resultStates = [
				{ status: "completed", hasErrors: false },
				{ status: "completed", hasErrors: true },
				{ status: "error", hasErrors: false },
			];

			resultStates.forEach(({ status, hasErrors }) => {
				mockUseAppState.appState.operationState = {
					type: "update",
					status,
					progress: status === "completed" ? 100 : 50,
					startTime: new Date(),
					results: {
						totalProducts: 25,
						successfulUpdates: hasErrors ? 20 : 25,
						failedUpdates: hasErrors ? 5 : 0,
						errors: hasErrors ? [{ errorMessage: "Test error" }] : [],
						...(status === "error" && { error: "System error" }),
					},
				};

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