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import { useEffect, useCallback, useRef } from 'react';
import { useRouter } from 'next/navigation';
import { authService } from '@/services';
import { STORAGE_KEYS } from '@/constants';
export interface TokenPayload {
sub: string;
device_id?: string | null;
exp: number;
iat: number;
role: string;
username: string;
}
export function useTokenManager() {
const router = useRouter();
const refreshTimeoutRef = useRef<NodeJS.Timeout | null>(null);
// Decode JWT token
const decodeToken = useCallback((token: string): TokenPayload | null => {
try {
const payloadPart = token.split('.')[1];
Iif (!payloadPart) return null;
const paddedPayload = payloadPart
.replace(/-/g, '+')
.replace(/_/g, '/')
.padEnd(Math.ceil(payloadPart.length / 4) * 4, '=');
const payload = JSON.parse(atob(paddedPayload));
return payload;
} catch {
return null;
}
}, []);
// Check if token is expired
const isTokenExpired = useCallback((token: string): boolean => {
const payload = decodeToken(token);
Iif (!payload) return true;
const currentTime = Date.now() / 1000;
return payload.exp < currentTime;
}, [decodeToken]);
// Check if token will expire soon (within 5 minutes)
const isTokenExpiringSoon = useCallback((token: string): boolean => {
const payload = decodeToken(token);
Iif (!payload) return true;
const currentTime = Date.now() / 1000;
const fiveMinutes = 5 * 60;
return payload.exp < (currentTime + fiveMinutes);
}, [decodeToken]);
// Get time until token expires
const getTimeUntilExpiry = useCallback((token: string): number => {
const payload = decodeToken(token);
Iif (!payload) return 0;
const currentTime = Date.now() / 1000;
return Math.max(0, payload.exp - currentTime);
}, [decodeToken]);
// Refresh token
const refreshToken = useCallback(async (): Promise<boolean> => {
try {
const result = await authService.refreshToken();
if (result.success) {
authService.setAuthToken(result.data.token);
return true;
}
// If refresh fails, clear auth data
authService.clearStoredUser();
Eif (typeof window !== 'undefined') {
localStorage.removeItem('iptv_auth_token');
}
return false;
} catch {
// Clear auth data on any error
authService.clearStoredUser();
Eif (typeof window !== 'undefined') {
localStorage.removeItem('iptv_auth_token');
}
return false;
}
}, []);
// Clear refresh timeout
const clearRefreshTimeout = useCallback(() => {
if (refreshTimeoutRef.current) {
clearTimeout(refreshTimeoutRef.current);
refreshTimeoutRef.current = null;
}
}, []);
// Schedule token refresh
const scheduleTokenRefresh = useCallback((token: string) => {
clearRefreshTimeout();
const timeUntilExpiry = getTimeUntilExpiry(token);
if (timeUntilExpiry <= 0) return;
// Schedule refresh 2 minutes before expiry
const refreshTime = Math.max(0, (timeUntilExpiry - 120) * 1000);
refreshTimeoutRef.current = setTimeout(async () => {
const success = await refreshToken();
if (!success) {
// Refresh failed, clear auth and let higher-level guards decide navigation
authService.clearStoredUser();
} else {
// Schedule next refresh
const newToken = localStorage.getItem(STORAGE_KEYS.AUTH_TOKEN);
Eif (newToken) {
scheduleTokenRefresh(newToken);
}
}
}, refreshTime);
}, [getTimeUntilExpiry, refreshToken, clearRefreshTimeout, router]);
// Validate current token
const validateToken = useCallback(async (): Promise<boolean> => {
const token = localStorage.getItem(STORAGE_KEYS.AUTH_TOKEN);
Iif (!token) return false;
Iif (isTokenExpired(token)) {
// Token is expired, try to refresh
const success = await refreshToken();
if (!success) {
authService.clearStoredUser();
localStorage.removeItem(STORAGE_KEYS.AUTH_TOKEN);
return false;
}
return true;
}
if (isTokenExpiringSoon(token)) {
// Token is expiring soon, refresh proactively
await refreshToken();
}
return true;
}, [isTokenExpired, isTokenExpiringSoon, refreshToken]);
// Initialize token management
useEffect(() => {
const initTokenManager = async () => {
const token = localStorage.getItem(STORAGE_KEYS.AUTH_TOKEN);
Iif (!token) return;
const isValid = await validateToken();
Eif (isValid) {
const currentToken = localStorage.getItem(STORAGE_KEYS.AUTH_TOKEN);
if (currentToken) {
scheduleTokenRefresh(currentToken);
}
}
};
initTokenManager();
// Cleanup on unmount
return () => {
clearRefreshTimeout();
};
}, [validateToken, scheduleTokenRefresh, clearRefreshTimeout]);
// Listen for storage changes (multiple tabs)
useEffect(() => {
const handleStorageChange = (e: StorageEvent) => {
if (e.key === STORAGE_KEYS.AUTH_TOKEN) {
if (e.newValue) {
// Token was updated in another tab
scheduleTokenRefresh(e.newValue);
} else {
// Token was removed in another tab; stop refresh scheduling
clearRefreshTimeout();
}
}
};
window.addEventListener('storage', handleStorageChange);
return () => {
window.removeEventListener('storage', handleStorageChange);
};
}, [scheduleTokenRefresh, clearRefreshTimeout, router]);
// Listen for page visibility changes
useEffect(() => {
const handleVisibilityChange = async () => {
if (document.visibilityState === 'visible') {
// Page became visible, validate token (do not auto-redirect here)
await validateToken();
}
};
document.addEventListener('visibilitychange', handleVisibilityChange);
return () => {
document.removeEventListener('visibilitychange', handleVisibilityChange);
};
}, [validateToken, router]);
return {
decodeToken,
isTokenExpired,
isTokenExpiringSoon,
getTimeUntilExpiry,
refreshToken,
validateToken,
scheduleTokenRefresh};
}
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