import axios from 'axios'
import { useAuthStore } from '../stores/authStore'

const apiClient = axios.create({
  baseURL: import.meta.env.VITE_API_URL || 'http://localhost:5000/api/v1',
  headers: {
    'Content-Type': 'application/json',
  },
})

apiClient.interceptors.request.use((config) => {
  const token = useAuthStore.getState().accessToken
  if (token) {
    config.headers.Authorization = `Bearer ${token}`
  }
  return config
})

apiClient.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config
    
    if (error.response?.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true
      
      try {
        const refreshToken = useAuthStore.getState().refreshToken
        const response = await axios.post(`${apiClient.defaults.baseURL}/auth/refresh`, {
          refreshToken,
        })
        
        const { accessToken, refreshToken: newRefreshToken } = response.data.data.tokens
        useAuthStore.getState().updateTokens(accessToken, newRefreshToken)
        
        originalRequest.headers.Authorization = `Bearer ${accessToken}`
        return apiClient(originalRequest)
      } catch (refreshError) {
        useAuthStore.getState().logout()
        window.location.href = '/login'
        return Promise.reject(refreshError)
      }
    }
    
    return Promise.reject(error)
  }
)

export default apiClient