import axios from "axios";
import analyticsMixIn from "@/mixins/analytics-mixin.js";
import store from "@/store";

import { applicationConfig } from "@/constants/application-config.js";
import { GaCategories, GaActions, GaLabels } from "@/constants/analytics";
import { headerKeys } from "@/constants/header-keys";

// Add a response interceptor for global axios error handing.
axios.interceptors.response.use(
    (response) => response,
    (error) => {
        let rejectionError = "";
        if (typeof error.response === "undefined") {
            // The request was not made, could be a bad connection or a CORS error.
            rejectionError = {
                message:
                    "A network error occurred. " +
                    "This could be a CORS issue or a dropped internet connection. " +
                    "It is impossible for us to know.",
                cause: error,
            };
        } else if (error.response) {
            // The request was made and the server responded with a status code
            // that falls out of the range of 2xx
            rejectionError = {
                message: "Status Code Error",
                cause: error.response,
            };
        } else if (error.request) {
            // The request was made but no response was received
            // `error.request` is an instance of XMLHttpRequest in the browser and an instance of
            // http.ClientRequest in node.js
            rejectionError = {
                message: "The request was made but no response was received",
                cause: error.request,
            };
        } else {
            // Something happened in setting up the request that triggered an Error
            rejectionError = {
                message: "Error",
                cause: error.message,
            };
        }

        return Promise.reject(rejectionError);
    }
);

export default {
    callHttpClient({
        method,
        endpoint,
        payload,
        logApiCall = false,
        pageNameToLog = null,
        additionalSuccessEventDataHandler,
    }) {
        return new Promise((resolve, reject) => {
            const cfDistroUrl = applicationConfig.CONSUMER_CF_DISTRO;
            const payloadAndAnalyticsData = Object.assign({}, payload, { AppName: "FixMyGlass" });
            const headers = {
                [headerKeys.EXPERIMENT]: JSON.stringify(store.getters.experimentSettings),
            };

            axios({
                method: method,
                url: cfDistroUrl + endpoint,
                data: payloadAndAnalyticsData,
                crossDomain: true,
                responseType: {},
                headers: headers,
            }).then(
                (response) => {
                    if (logApiCall) {
                        let additionalEventData = "";
                        if (additionalSuccessEventDataHandler) {
                            additionalEventData = "_" + additionalSuccessEventDataHandler(response);
                        }
                        const endpointWithoutParams =
                            analyticsMixIn.methods.removeParamsFromEndpoint(endpoint);
                        analyticsMixIn.methods.pushEventToGA(
                            GaCategories.API_RESPONSE,
                            `${pageNameToLog}_${endpointWithoutParams}`,
                            `${GaLabels.SUCCESS}${additionalEventData}`,
                            true
                        );
                    }

                    return resolve(response);
                },
                (error) => {
                    if (logApiCall) {
                        analyticsMixIn.methods.pushEventToGA(
                            GaCategories.API_RESPONSE,
                            GaActions.RESULT,
                            `${GaLabels.ERROR}_${endpoint}`,
                            true
                        );
                    }

                    global.$logger.logError(`${method}: ${endpoint}: ${error.message}`, error);
 
                    return reject(error);
                }
            );
        });
    },

    /* istanbul ignore next */
    callMockHttpClient({ method, endpoint, payload }) {
        // For Mock use only!
        return new Promise((resolve, reject) => {
            axios({
                method: method,
                url: endpoint,
                crossDomain: true,
                headers: {
                    "Content-Type": "application/x-www-form-urlencoded",
                },
                responseType: {},
                data: payload,
            }).then(
                (response) => {
                    // simulate a delayed response
                    setTimeout(() => {
                        resolve(response);
                    }, 2000);
                },
                (error) => {
                    return reject(error.response);
                }
            );
        });
    },
};