import axios from 'axios'
import { TokenService } from './storage.service'
import store  from '@/store'

const ApiService = {

    init(baseURL) {
        axios.defaults.baseURL = baseURL;
    },

    setHeader() {
        axios.defaults.headers.common["Authorization"] = `Bearer ${TokenService.getToken()}`
    },

    removeHeader() {
        axios.defaults.headers.common = {}
    },

    get(resource) {
        return axios.get(resource)
    },

    post(resource, data) {
        return axios.post(resource, data)
    },

    put(resource, data) {
        return axios.put(resource, data)
    },

    delete(resource) {
        return axios.delete(resource)
    },

    /**
     * Perform a custom Axios request.
     *
     * data is an object containing the following properties:
     *  - method
     *  - url
     *  - data ... request payload
     *  - auth (optional)
     *    - username
     *    - password
    **/
    customRequest(data) {
        return axios(data)
    },

    _401interceptor: null,

    mount401Interceptor() {
     this._401interceptor = axios.interceptors.response.use(
         (response) => {
             return response
         },
         async (error) => {
             if (error.request.status == 401) {
                 if (error.config.url.includes('/auth/login/')) {
                     // Refresh token has failed. Logout the user
                     store.dispatch('auth/logout')
                     throw error
                 } else {
                     // Refresh the access token
                     try{
                         await store.dispatch('auth/refreshToken')
                         // Retry the original request
                         return this.customRequest({
                             method: error.config.method,
                             url: error.config.url,
                             data: error.config.data
                         })
                     } catch (e) {
                         // Refresh has failed - reject the original request
                         throw error
                     }
                 }
             }

             // If error was not 401 just reject as is
             throw error
         }
     )
 },

 unmount401Interceptor() {
     // Eject the interceptor
     axios.interceptors.response.eject(this._401interceptor)
 }
}

export default ApiService
export { ApiService}