import axios from 'axios';
import store from "../../views/pages/AppStore";
import VueCookies from "vue-cookies";

const apiClient = axios.create({
    headers: {
        'Content-Type' : 'application/json; charset=UTF-8',
    },
});

apiClient.interceptors.request.use(
    config => {
        config.headers.Authorization = store.state.authorization; // 요청 시 AccessToken 추가
        return config;
    },
    error => {
        return Promise.reject(error);
    }
)
 
apiClient.interceptors.response.use(
    response => {
        return response;
    },
    async error => {
        if(error.response.status == 403 && error.response.data.message == '접근 권한이 없습니다.') {
            window.history.back();
        }
        const originalReq = error.config;
        // 토큰의 만료기간이 끝난경우
        if(error.response.status == 401 && error.response.data.message == 'Token expired' && !originalReq._retry) {
            originalReq._retry = true; // 재요청 시도(한번만 실행)
            let isRefresh = true;
            if(originalReq.url === '/event/findAllEvent.json') {
                if(store.state.routerFlag){
                    store.commit('setRouterFlag', false);
                } else {
                    isRefresh = false;
                }
            }

            try {
                const res = await axios.post('/refresh/tokenReissue.json', {}, {
                    headers: {
                      //  'refresh' : store.state.refresh // refresh token
                        'refresh' :  VueCookies.get('refresh'),
                        'isRefresh' : isRefresh
                    }
                });
                store.commit('setAuthorization', res.headers.authorization); // 새로 발급 받은 AccessToken 저장
                originalReq.headers.Authorization =  store.state.authorization; // 새로 발급 받은 AccessToken을 기존 요청에 추가
                /** jwt토큰 복호화 **/
                const base64String = store.state.authorization.split('.')[1];
                const mbr = JSON.parse(decodeURIComponent(escape(window.atob(base64String)))); // jwt claim 추출
                store.commit("setMbrId", mbr.mbrId);
                store.commit("setMbrNm", mbr.mbrEncptFlnm);
                store.commit("setAuthrtNm", mbr.authrtNm);
                store.commit("setAuthrtTypeLvl", mbr.authrtTypeLvl);
                store.commit('setRoles', mbr.roles);
                /** jwt토큰 복호화 **/
                return apiClient(originalReq); // 원래 요청 재시도 /pathname + search
            } catch(refreshError) {
                const redirect = window.location.pathname + window.location.search;
                sessionStorage.setItem("redirect", redirect);
                //alert('세션이 종료되었습니다.\n로그인을 새로 해주세요.');
                store.commit("setStoreReset");
                // store.commit("setAuthorization", null);
                // store.commit("setRefresh", null);
                // store.commit("setMbrNm", null);
                // store.commit('setRoles', [{authority: "ROLE_NONE"}]);
                // store.commit('setPageAuth', null);
                window.location = '/';
                return Promise.reject(refreshError);
            }
        }
        return Promise.reject(error);
    }
)

export default apiClient;