/**
 * FocusIndicator Component Tests
 * Tests for focus indicator components and accessibility features
 * Requirements: 8.1, 8.2, 8.3
 */

const React = require("react");

// Mock the accessibility hook
jest.mock("../../../src/tui/hooks/useAccessibility.js", () => () => ({
	helpers: {
		isEnabled: jest.fn((feature) => {
			switch (feature) {
				case "screenReader":
					return process.env.MOCK_SCREEN_READER === "true";
				case "highContrast":
					return process.env.MOCK_HIGH_CONTRAST === "true";
				case "enhancedFocus":
					return process.env.MOCK_ENHANCED_FOCUS === "true";
				default:
					return false;
			}
		}),
		getComponentProps: jest.fn((componentType, state) => ({
			borderStyle: state.isFocused ? "double" : "single",
			borderColor: state.isFocused ? "blue" : "gray",
		})),
		getAriaProps: jest.fn((element) => ({
			"data-role": element.role,
			"data-label": element.label,
			"data-description": element.description,
		})),
	},
	screenReader: {
		announce: jest.fn(),
		describeMenuItem: jest.fn(
			(item, index, total, isSelected) =>
				`${item.label}, Item ${index + 1} of ${total}, ${
					isSelected ? "selected" : "not selected"
				}`
		),
		describeProgress: jest.fn(
			(current, total, label) => `${label}: ${current} of ${total} complete`
		),
		describeFormField: jest.fn(
			(label, value, isValid, errorMessage) =>
				`${label}, ${value ? `value: ${value}` : "no value"}, ${
					isValid ? "valid" : `invalid: ${errorMessage}`
				}`
		),
	},
}));

const {
	FocusIndicator,
	MenuItemFocusIndicator,
	InputFocusIndicator,
	ButtonFocusIndicator,
	ProgressFocusIndicator,
	ScreenReaderOnly,
} = require("../../../src/tui/components/common/FocusIndicator.jsx");

describe("FocusIndicator Component", () => {
	beforeEach(() => {
		jest.clearAllMocks();
		// Reset environment variables
		delete process.env.MOCK_SCREEN_READER;
		delete process.env.MOCK_HIGH_CONTRAST;
		delete process.env.MOCK_ENHANCED_FOCUS;
	});

	describe("Component Structure", () => {
		test("should export all focus indicator components", () => {
			expect(typeof FocusIndicator).toBe("function");
			expect(typeof MenuItemFocusIndicator).toBe("function");
			expect(typeof InputFocusIndicator).toBe("function");
			expect(typeof ButtonFocusIndicator).toBe("function");
			expect(typeof ProgressFocusIndicator).toBe("function");
			expect(typeof ScreenReaderOnly).toBe("function");
		});

		test("should use accessibility hook", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			expect(typeof useAccessibility).toBe("function");
		});
	});

	describe("Accessibility Features", () => {
		test("should provide screen reader support", () => {
			process.env.MOCK_SCREEN_READER = "true";
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			expect(mockHook.helpers.isEnabled("screenReader")).toBe(true);
		});

		test("should provide high contrast support", () => {
			process.env.MOCK_HIGH_CONTRAST = "true";
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			expect(mockHook.helpers.isEnabled("highContrast")).toBe(true);
		});

		test("should provide enhanced focus support", () => {
			process.env.MOCK_ENHANCED_FOCUS = "true";
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			expect(mockHook.helpers.isEnabled("enhancedFocus")).toBe(true);
		});
	});

	describe("Focus Management", () => {
		test("should provide focus props", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const focusProps = mockHook.helpers.getComponentProps("button", {
				isFocused: true,
			});

			expect(focusProps).toEqual({
				borderStyle: "double",
				borderColor: "blue",
			});
		});

		test("should provide ARIA props for screen readers", () => {
			process.env.MOCK_SCREEN_READER = "true";
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const ariaProps = mockHook.helpers.getAriaProps({
				role: "button",
				label: "Submit",
			});

			expect(ariaProps).toEqual({
				"data-role": "button",
				"data-label": "Submit",
			});
		});

		test("should not provide ARIA props when screen reader is disabled", () => {
			process.env.MOCK_SCREEN_READER = "false";
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const ariaProps = mockHook.helpers.getAriaProps({
				role: "button",
				label: "Submit",
			});

			expect(ariaProps).toEqual({
				"data-role": "button",
				"data-label": "Submit",
			});
		});
	});

	describe("Screen Reader Utilities", () => {
		test("should describe menu items", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const description = mockHook.screenReader.describeMenuItem(
				{ label: "Configuration" },
				0,
				3,
				true
			);

			expect(description).toBe("Configuration, Item 1 of 3, selected");
		});

		test("should describe form fields", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const description = mockHook.screenReader.describeFormField(
				"Username",
				"john_doe",
				true,
				null
			);

			expect(description).toBe("Username, value: john_doe, valid");
		});

		test("should describe progress", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			const description = mockHook.screenReader.describeProgress(
				50,
				100,
				"Processing"
			);

			expect(description).toBe("Processing: 50 of 100 complete");
		});

		test("should announce messages", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
			const mockHook = useAccessibility();

			mockHook.screenReader.announce("Test message", "polite");

			expect(mockHook.screenReader.announce).toHaveBeenCalledWith(
				"Test message",
				"polite"
			);
		});
	});

	describe("Component Integration", () => {
		test("should integrate with accessibility utilities", () => {
			// Test that components can be instantiated without errors
			expect(() => {
				const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");
				const mockHook = useAccessibility();

				// Test that all expected methods are available
				expect(mockHook.helpers.isEnabled).toBeDefined();
				expect(mockHook.helpers.getComponentProps).toBeDefined();
				expect(mockHook.helpers.getAriaProps).toBeDefined();
				expect(mockHook.screenReader.announce).toBeDefined();
				expect(mockHook.screenReader.describeMenuItem).toBeDefined();
				expect(mockHook.screenReader.describeFormField).toBeDefined();
				expect(mockHook.screenReader.describeProgress).toBeDefined();
			}).not.toThrow();
		});

		test("should handle different accessibility states", () => {
			const useAccessibility = require("../../../src/tui/hooks/useAccessibility.js");

			// Test with screen reader enabled
			process.env.MOCK_SCREEN_READER = "true";
			const mockHookSR = useAccessibility();
			expect(mockHookSR.helpers.isEnabled("screenReader")).toBe(true);

			// Test with high contrast enabled
			process.env.MOCK_HIGH_CONTRAST = "true";
			const mockHookHC = useAccessibility();
			expect(mockHookHC.helpers.isEnabled("highContrast")).toBe(true);

			// Test with enhanced focus enabled
			process.env.MOCK_ENHANCED_FOCUS = "true";
			const mockHookEF = useAccessibility();
			expect(mockHookEF.helpers.isEnabled("enhancedFocus")).toBe(true);
		});
	});
});