import { createContext, useContext } from 'react';
import type { User } from '@/features/auth/services/types';

export type AuthStatus = 'loading' | 'authenticated' | 'guest';

export interface AuthContextValue {
    status: AuthStatus;
    user: User | null;
    /** Access token, kept only in memory (BR-U1-02). */
    accessToken: string | null;
    expiresAt: string | null;
    isAuthenticated: boolean;
    login: (email: string, password: string) => Promise<void>;
    logout: () => Promise<void>;
    /** Performs a cookie-based silent refresh; resolves to the new token or null. */
    refresh: () => Promise<string | null>;
}

export const AuthContext = createContext<AuthContextValue | null>(null);

export function useAuth(): AuthContextValue {
    const ctx = useContext(AuthContext);
    if (ctx === null) {
        throw new Error('useAuth must be used within an AuthProvider');
    }
    return ctx;
}