/**
 * React hook for PostHog analytics
 *
 * Provides easy access to analytics tracking in React components
 */

import { useEffect, useRef } from 'react';
import { analytics, AnalyticsEvent } from '../src/services/analytics';

/**
 * Hook for tracking analytics events
 */
export function useAnalytics() {
	return {
		track: analytics.track.bind(analytics),
		identify: analytics.identify.bind(analytics),
		reset: analytics.reset.bind(analytics),
		setUserProperties: analytics.setUserProperties.bind(analytics),
		trackError: analytics.trackError.bind(analytics),
		isEnabled: analytics.isEnabled.bind(analytics),
	};
}

/**
 * Hook for automatically tracking screen views
 *
 * Usage:
 * ```tsx
 * export default function MyScreen() {
 *   useScreenTracking('MyScreen', { someParam: 'value' });
 *   // ... rest of component
 * }
 * ```
 */
export function useScreenTracking(screenName: string, params?: Record<string, any>) {
	const hasTracked = useRef(false);

	useEffect(() => {
		if (!hasTracked.current) {
			analytics.trackScreenView(screenName, params);
			hasTracked.current = true;
		}
	}, [screenName, params]);
}

/**
 * Hook for tracking component mount/unmount lifecycle
 *
 * Usage:
 * ```tsx
 * useLifecycleTracking('MyComponent', {
 *   onMount: { someData: 'value' },
 *   onUnmount: { duration: true }
 * });
 * ```
 */
export function useLifecycleTracking(
	componentName: string,
	options?: {
		onMount?: Record<string, any>;
		onUnmount?: { duration?: boolean };
	}
) {
	const mountTime = useRef<number>(Date.now());

	useEffect(() => {
		// Track component mount
		if (options?.onMount) {
			analytics.track('feature_discovered', {
				feature: componentName,
				source: 'component_mount',
				...options.onMount,
			} as any);
		}

		// Track component unmount
		return () => {
			if (options?.onUnmount) {
				const properties: Record<string, any> = {
					component: componentName,
				};

				if (options.onUnmount.duration) {
					properties.duration = Date.now() - mountTime.current;
				}

				console.log('[Analytics] Component unmounted:', componentName, properties);
			}
		};
	}, [componentName, options]);
}

/**
 * Hook for tracking performance metrics
 *
 * Usage:
 * ```tsx
 * const { startTimer, endTimer } = usePerformanceTracking();
 *
 * const handleAction = async () => {
 *   startTimer('action_name');
 *   await doSomething();
 *   endTimer('action_name', { success: true });
 * };
 * ```
 */
export function usePerformanceTracking() {
	const timers = useRef<Map<string, number>>(new Map());

	const startTimer = (timerName: string) => {
		timers.current.set(timerName, Date.now());
	};

	const endTimer = (timerName: string, properties?: Record<string, any>) => {
		const startTime = timers.current.get(timerName);
		if (startTime) {
			const duration = Date.now() - startTime;
			console.log(`[Analytics] Performance: ${timerName} took ${duration}ms`, properties);
			timers.current.delete(timerName);

			// You can track this as a custom event if needed
			if (properties) {
				analytics.track(
					'api_request' as any,
					{
						endpoint: timerName,
						method: 'unknown',
						duration,
						statusCode: 200,
						success: true,
						...properties,
					} as any
				);
			}

			return duration;
		}
		return 0;
	};

	const getTimer = (timerName: string): number | null => {
		const startTime = timers.current.get(timerName);
		return startTime ? Date.now() - startTime : null;
	};

	return { startTimer, endTimer, getTimer };
}

/**
 * Hook for tracking errors with automatic context
 *
 * Usage:
 * ```tsx
 * const { trackError } = useErrorTracking('MyScreen');
 *
 * try {
 *   await riskyOperation();
 * } catch (error) {
 *   trackError(error, { action: 'riskyOperation' });
 * }
 * ```
 */
export function useErrorTracking(screenName: string) {
	const trackError = (
		error: Error | string,
		context?: {
			action?: string;
			metadata?: Record<string, any>;
		}
	) => {
		analytics.trackError(error, {
			...context,
			screen: screenName,
		});
	};

	return { trackError };
}

/**
 * Hook for tracking form interactions
 *
 * Usage:
 * ```tsx
 * const { trackFieldChange, trackFormSubmit, trackFormError } = useFormTracking('LoginForm');
 * ```
 */
export function useFormTracking(formName: string) {
	const trackFieldChange = (fieldName: string, value?: any) => {
		console.log(`[Analytics] Form field changed: ${formName}.${fieldName}`, value);
		// Track field interaction without PII
	};

	const trackFormSubmit = (properties?: Record<string, any>) => {
		analytics.track(
			'feature_discovered' as any,
			{
				feature: `${formName}_submitted`,
				source: 'form',
				...properties,
			} as any
		);
	};

	const trackFormError = (error: string, fieldName?: string) => {
		analytics.trackError(error, {
			action: 'form_submit',
			metadata: {
				form: formName,
				field: fieldName,
			},
		});
	};

	return { trackFieldChange, trackFormSubmit, trackFormError };
}

export default useAnalytics;