import { Config } from "../Config";
import axios, { AxiosError, AxiosResponse } from "axios";
import { generateAuth, URLS } from "../utils";
import { UpdateCreditSessionPayload } from "./UpdateCreditSessionPayload";
import { NotAuthorized, ResourceMissing, UnknownError } from "../CommonErrors";
import { UnableToUpdateCreditSession } from "./UnableToUpdateCreditSession";

/**
 * Use this API call to update a Klarna Payments session with new details,
 * in case something in the order has changed and the checkout has been
 * reloaded. Including if the consumer adds a new item to the cart or if
 * consumer details are updated.
 * 
 * @param config 
 * @param session 
 * @returns 
 */
 export function UpdateCreditSession(
    config: Config,
    sessionId: string,
    session: UpdateCreditSessionPayload
): Promise<void> {
    return new Promise<void>((resolve, reject) => {
        const url = URLS.API_URL(config) + URLS.CREDIT_SESSION_API_URL(sessionId);

        axios.post<UpdateCreditSessionPayload, AxiosResponse<void>>(url, session, {
            headers: {
                "Authorization": generateAuth(config.username, config.password),
                "content-type": "application/json"
            }
        })
        .then((response: AxiosResponse<void>) => {
            if (!config.isLive) {
                console.log(response);
            }

            resolve();
        })
        .catch((error: AxiosError) => {
            const { response } = error;
            
            if (response) {
                const { status } = response;

                switch(status) {
                    case 400:
                        reject(new UnableToUpdateCreditSession());
                        return;
                    case 403:
                        reject(new NotAuthorized());
                        return;
                    case 404:
                        reject(new ResourceMissing());
                        return;
                    default:
                        reject(new UnknownError());
                }
            } else {
                reject(error);
            }
        });
    });
}