/**
 * @swagger
 * /api/endpoint/getportallogin_api:
 *   get:
 *     tags: [Login]
 *     description: Returns portal login
 *     summary: Phase 2
 *     parameters:
 *       - name: emailaddress
 *         in: query
 *         required: true
 *         schema:
 *           type: string
 *     responses:
 *       200:
 *         description: hello world
 */

import { azureHeadersPaged } from "../../../actions/core/headers";
import { hashAPIPath } from "../../../actions/core/hash";
import { respondError } from "../middleware/apiResponse";
import { relayGet } from "../middleware/relayForwarding";
import { RELAY_POLICY_STRICT_LOGIN } from "../middleware/relayPolicyPresets";

export default async function ApiProxy(req, res) {
    const emailAddress = req.query.emailAddress;
    const checkHash = req.query.hash;

    if (typeof emailAddress !== "string" || emailAddress.trim().length === 0) {
        return respondError(res, {
            status: 400,
            code: "EMAIL_ADDRESS_REQUIRED",
            message: "emailAddress is required"
        });
    }

    if (typeof checkHash !== "string" || checkHash.length === 0) {
        return respondError(res, {
            status: 400,
            code: "HASH_REQUIRED",
            message: "hash is required"
        });
    }

    const checkquerypath =
        "/api/endpoint/getportallogin_api?emailAddress=" + emailAddress;
    const encodedCheckquerypath =
        "/api/endpoint/getportallogin_api?emailAddress=" +
        encodeURIComponent(emailAddress);

    const expectedHashCandidates = [
        hashAPIPath(checkquerypath),
        hashAPIPath(encodedCheckquerypath)
    ];

    if (!expectedHashCandidates.includes("&hash=" + checkHash)) {
        return respondError(res, {
            status: 400,
            code: "INVALID_HASH",
            message: "Invalid hash"
        });
    }

    const queryUrl =
        "contacts?$filter=emailaddress1 eq '" +
        emailAddress +
        "' and statuscode eq 1&$count=true&$select=emailaddress1,contactid,yomifullname,firstname,lastname";

    const relayPolicy = RELAY_POLICY_STRICT_LOGIN;

    return relayGet({
        queryUrl,
        res,
        requestOptionsBuilder: (accessToken) => azureHeadersPaged(accessToken),
        relayPolicy,
        errorResponse: {
            status: 400,
            code: "PORTAL_LOGIN_FETCH_FAILED",
            message: "Failed to fetch portal login"
        }
    });
}