import axios from 'axios';
import Cookies from 'js-cookie';

const api = axios.create({
    baseURL: '/api/v1',
    headers: { 'Content-Type': 'application/json' },
});

// Request interceptor - add auth token
api.interceptors.request.use((config) => {
    const token = Cookies.get('accessToken');
    if (token) {
        config.headers.Authorization = `Bearer ${token}`;
    }
    return config;
});

// Response interceptor - handle token refresh
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 = Cookies.get('refreshToken');
                const { data } = await axios.post('/api/v1/auth/refresh-token', { refreshToken });
                const { accessToken, refreshToken: newRefresh } = data.data;

                Cookies.set('accessToken', accessToken, { expires: 1 });
                Cookies.set('refreshToken', newRefresh, { expires: 7 });

                originalRequest.headers.Authorization = `Bearer ${accessToken}`;
                return api(originalRequest);
            } catch {
                Cookies.remove('accessToken');
                Cookies.remove('refreshToken');
                window.location.href = '/login';
            }
        }
        return Promise.reject(error);
    }
);

// Auth API
export const authAPI = {
    register: (data: { email: string; password: string; name: string }) =>
        api.post('/auth/register', data),
    login: (data: { email: string; password: string }) =>
        api.post('/auth/login', data),
    me: () => api.get('/auth/me'),
    logout: () => api.post('/auth/logout'),
};

// Scan API
export const scanAPI = {
    getHistory: (params?: Record<string, string>) =>
        api.get('/scans', { params }),
    getDetail: (id: string) => api.get(`/scans/${id}`),
    getCount: () => api.get('/scans/count'),
};

// Subscription API
export const subscriptionAPI = {
    getPlans: () => api.get('/subscriptions/plans'),
    subscribe: (plan: string) => api.post('/subscriptions/subscribe', { plan }),
    getMySubscriptions: () => api.get('/subscriptions/my'),
    getPayments: (params?: Record<string, string>) =>
        api.get('/subscriptions/payments', { params }),
    checkStatus: (invoiceNumber: string) =>
        api.get(`/subscriptions/status/${invoiceNumber}`),
};

// License API
export const licenseAPI = {
    getMy: () => api.get('/licenses/my'),
};

// User API
export const userAPI = {
    getProfile: () => api.get('/users/profile'),
    updateProfile: (data: { name: string }) => api.put('/users/profile', data),
    changePassword: (data: { currentPassword: string; newPassword: string }) =>
        api.put('/users/change-password', data),
};

// Admin API
export const adminAPI = {
    getDashboard: () => api.get('/admin/dashboard'),
    getUsers: (params?: Record<string, string>) =>
        api.get('/admin/users', { params }),
    suspendUser: (id: string) => api.put(`/admin/users/${id}/suspend`),
    activateUser: (id: string) => api.put(`/admin/users/${id}/activate`),
    generateLicense: (data: { userId: string; plan: string; durationDays?: number }) =>
        api.post('/admin/licenses', data),
    getRevenue: (months?: number) =>
        api.get('/admin/revenue', { params: { months } }),
};

export default api;