/**
 * @swagger
 * /api/email/notify:
 *   post:
 *     tags:
 *      - Email
 *     summary: Email to user, Phase 2
 *     consumes:
 *     - application/json
 *     description: Send email via gov notify
 *     produces: [
 *       "application/json",
 *       "application/xml"
 *     ]
 *     requestBody:
 *        name: Email
 *        description: Email body
 *        required: true
 *        content:
 *          'application/json':
 *             schema:
 *               $ref: "#/components/schemas/emailBody"
 *     responses:
 *       405:
 *         description: Failed
 */

import { consoleLogger, redactSensitive } from "../../../actions/core/logger";
import { isNonEmptyString, sanitizeString } from "../../../actions/core/guards";
import { getPreferredLanguage } from "../../../actions/services/accountService";
import { respondError, respondSuccess } from "../middleware/apiResponse";

export default async function ApiProxy(req, res) {
    const data = req.body;
    const emailAddress = sanitizeString(data?.emailAddress);

    if (!isNonEmptyString(emailAddress)) {
        return respondError(res, {
            status: 400,
            code: "EMAIL_ADDRESS_REQUIRED",
            message: "emailAddress is required"
        });
    }

    data.emailAddress = emailAddress;

    if (data?.reference === "PEDW-NEW-CASEREF") {
        try {
            const prefLang = await getPreferredLanguage(data.emailAddress);
            const preferredLanguage =
                prefLang?.value?.[0]?.pinswg_preferredlanguage;

            if (preferredLanguage === 846040000) {
                data.templateId = "d2d9d0dc-e5d4-4da5-9156-775521d69c5c";
            }
        } catch (error) {
            consoleLogger(error);
        }
    }

    const NotifyClient = require("notifications-node-client").NotifyClient;

    const notifyClient = new NotifyClient(process.env.NOTIFY_API_KEY);
    //const emailReplyToId = process.env.EMAIL_REPLY_TO_ID;

    console.info(
        "notify_send_attempt",
        redactSensitive({
            templateId: data.templateId,
            emailAddress: data.emailAddress,
            reference: data.reference,
            personalisation: data.personalisation
        })
    );

    try {
        await notifyClient.sendEmail(data.templateId, data.emailAddress, {
            personalisation: data.personalisation,
            reference: data.reference
        });

        return respondSuccess(res, data);
    } catch (error) {
        consoleLogger(error);
        return respondError(res, {
            status: 400,
            code: "EMAIL_NOTIFY_FAILED",
            message: "Failed to send notify email"
        });
    }
}