const React = require("react");
const { Box, Text } = require("ink");
const { useState, useEffect } = React;
const useAppState = require("../hooks/useAppState.js");
const useNavigation = require("../hooks/useNavigation.js");
const { useServiceContext } = require("../providers/ServiceProvider.jsx");

/**
 * StatusBar Component
 * Displays global status information at the top of the application
 * Shows connection status, operation progress, and current screen
 * Requirements: 8.1, 8.2, 8.3
 */
const StatusBar = () => {
	const { operationState, configuration } = useAppState();
	const { currentScreen } = useNavigation();
	const {
		testConnection,
		isInitialized,
		error: serviceError,
	} = useServiceContext();
	const [connectionStatus, setConnectionStatus] = useState({
		status: "disconnected",
		lastChecked: null,
		error: null,
	});

	// Test connection status periodically using ShopifyService
	useEffect(() => {
		const performConnectionTest = async () => {
			try {
				// Only test connection if services are initialized and we have configuration
				if (!isInitialized) {
					setConnectionStatus({
						status: "initializing",
						lastChecked: new Date(),
						error: "Services initializing...",
					});
					return;
				}

				if (serviceError) {
					setConnectionStatus({
						status: "error",
						lastChecked: new Date(),
						error: serviceError,
					});
					return;
				}

				if (!configuration.shopDomain || !configuration.accessToken) {
					setConnectionStatus({
						status: "not_configured",
						lastChecked: new Date(),
						error: "Missing configuration",
					});
					return;
				}

				// Set connecting status
				setConnectionStatus((prev) => ({
					...prev,
					status: "connecting",
				}));

				// Use ShopifyService to test connection
				const isConnected = await testConnection();

				setConnectionStatus({
					status: isConnected ? "connected" : "disconnected",
					lastChecked: new Date(),
					error: isConnected ? null : "Connection failed",
				});
			} catch (error) {
				setConnectionStatus({
					status: "error",
					lastChecked: new Date(),
					error: error.message,
				});
			}
		};

		// Test connection immediately if services are ready
		if (isInitialized) {
			performConnectionTest();
		}

		// Test connection every 30 seconds
		const interval = setInterval(() => {
			if (isInitialized) {
				performConnectionTest();
			}
		}, 30000);

		return () => clearInterval(interval);
	}, [
		configuration.shopDomain,
		configuration.accessToken,
		isInitialized,
		serviceError,
		testConnection,
	]);

	// Get connection display info
	const getConnectionInfo = () => {
		switch (connectionStatus.status) {
			case "connected":
				return {
					text: "Connected",
					color: "green",
					indicator: "●",
				};
			case "connecting":
				return {
					text: "Connecting...",
					color: "yellow",
					indicator: "◐",
				};
			case "initializing":
				return {
					text: "Initializing...",
					color: "yellow",
					indicator: "◑",
				};
			case "not_configured":
				return {
					text: "Not Configured",
					color: "gray",
					indicator: "○",
				};
			case "error":
				return {
					text: "Connection Error",
					color: "red",
					indicator: "●",
				};
			case "disconnected":
			default:
				return {
					text: "Disconnected",
					color: "red",
					indicator: "○",
				};
		}
	};

	// Get operation status info
	const getOperationInfo = () => {
		if (!operationState) {
			return null;
		}

		const { status, progress, type, currentProduct } = operationState;

		switch (status) {
			case "running":
				return {
					text: `${type === "rollback" ? "Rollback" : "Update"}: ${
						progress || 0
					}%`,
					color: "blue",
					indicator: "▶",
					details: currentProduct ? `Processing: ${currentProduct}` : null,
				};
			case "completed":
				return {
					text: `${type === "rollback" ? "Rollback" : "Update"} Complete`,
					color: "green",
					indicator: "✓",
				};
			case "error":
				return {
					text: `${type === "rollback" ? "Rollback" : "Update"} Failed`,
					color: "red",
					indicator: "✗",
				};
			case "paused":
				return {
					text: `${type === "rollback" ? "Rollback" : "Update"} Paused`,
					color: "yellow",
					indicator: "⏸",
				};
			default:
				return {
					text: "Ready",
					color: "gray",
					indicator: "○",
				};
		}
	};

	// Get current screen name for display
	const getScreenName = () => {
		const screenNames = {
			"main-menu": "Main Menu",
			configuration: "Configuration",
			operation: "Operation",
			scheduling: "Scheduling",
			logs: "Logs",
			"tag-analysis": "Tag Analysis",
		};
		return screenNames[currentScreen] || "Unknown";
	};

	// Get system status indicator
	const getSystemStatus = () => {
		if (operationState?.status === "error") {
			return { color: "red", text: "ERROR" };
		}
		if (operationState?.status === "running") {
			return { color: "blue", text: "ACTIVE" };
		}
		if (connectionStatus.status === "error") {
			return { color: "red", text: "CONN_ERR" };
		}
		if (connectionStatus.status === "connected") {
			return { color: "green", text: "READY" };
		}
		return { color: "gray", text: "IDLE" };
	};

	const connectionInfo = getConnectionInfo();
	const operationInfo = getOperationInfo();
	const systemStatus = getSystemStatus();

	return React.createElement(
		Box,
		{
			borderStyle: "single",
			paddingX: 1,
			justifyContent: "space-between",
			height: 3,
		},
		// Left side: Connection and screen info
		React.createElement(
			Box,
			{ flexDirection: "column" },
			React.createElement(
				Box,
				null,
				React.createElement(
					Text,
					{ color: connectionInfo.color },
					`${connectionInfo.indicator} `
				),
				React.createElement(Text, null, connectionInfo.text),
				React.createElement(Text, { color: "gray" }, " | "),
				React.createElement(Text, null, `Screen: ${getScreenName()}`)
			),
			connectionStatus.error &&
				React.createElement(
					Text,
					{ color: "red", dimColor: true },
					`Error: ${connectionStatus.error.substring(0, 40)}${
						connectionStatus.error.length > 40 ? "..." : ""
					}`
				)
		),
		// Right side: Operation status and system status
		React.createElement(
			Box,
			{ flexDirection: "column", alignItems: "flex-end" },
			React.createElement(
				Box,
				null,
				operationInfo &&
					React.createElement(
						Text,
						{ color: operationInfo.color },
						`${operationInfo.indicator} ${operationInfo.text}`
					),
				operationInfo && React.createElement(Text, { color: "gray" }, " | "),
				React.createElement(
					Text,
					{ color: systemStatus.color, bold: true },
					systemStatus.text
				)
			),
			operationInfo?.details &&
				React.createElement(
					Text,
					{ color: "gray", dimColor: true },
					operationInfo.details.substring(0, 30) +
						(operationInfo.details.length > 30 ? "..." : "")
				)
		)
	);
};

module.exports = StatusBar;