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import axios from 'axios';

const api = axios.create({
    baseURL: import.meta.env.VITE_API_URL || '/api/',
    headers: {
        'Content-Type': 'application/json',
    },
});

api.interceptors.request.use(
    (config) => {
        const token = localStorage.getItem('access_token');
        if (token) {
            config.headers['Authorization'] = `Bearer ${token}`;
        }
        return config;
    },
    (error) => Promise.reject(error)
);

api.interceptors.response.use(
    (response) => response,
    async (error) => {
        const originalRequest = error.config;
        if (error.response.status === 401 && !originalRequest._retry) {
            originalRequest._retry = true;
            try {
                const refreshToken = localStorage.getItem('refresh_token');
                const response = await axios.post('/api/auth/token/refresh/', {
                    refresh: refreshToken
                });
                const { access } = response.data;
                localStorage.setItem('access_token', access);
                api.defaults.headers.common['Authorization'] = `Bearer ${access}`;
                return api(originalRequest);
            } catch (err) {
                // Logout user if refresh fails
                localStorage.removeItem('access_token');
                localStorage.removeItem('refresh_token');
                window.location.href = '/';
            }
        }
        return Promise.reject(error);
    }
);

export default api;