const auth = require("../utils/auth.utils");
const db = require("./dbAccess.services");
const mail = require("./mail.services");
const clean = require("../utils/sanitizer.utils");
const domains = require("../configs/domains.configs");
const errors = require("../configs/errorCodes.configs");

import { logger } from "../utils/logger.utils";

async function createRegKey(body) {
  logger.debug("registerServices.createRegKey: Incoming request");
  if (body.email) {
    const domain = await clean.getDomainFromEmail(body.email);
    logger.info(`registerServices: Registration request from: ${domain}`);
    if (domains.includes(domain)) {
      logger.debug(`registerServices.createRegKey: Key from valid: ${domain}`);
      const uuid = await auth.generateKey();
      db.addRegReq(uuid, domain);
      const message = await auth.generateConfirmationEmail(body.email, uuid);
      if (!message) {
        const err = new Error("Message generation error");
        logger.error(
          err,
          "registerServices.createRegKey: Error generating email"
        );
        return 500;
      }
      if ((await mail.send(message)) == true) {
        return { status: 201, message: "email sent" };
      }
      return { status: 500, errorCode: 950, errorMsg: errors[950] };
    }
    return { status: 403, errorCode: 702, errorMsg: errors[702] };
  } else {
    return { status: 400, errorCode: 901, errorMsg: errors[902] };
  }
}

async function regUser(req) {
  // Add input validation
  logger.trace(`Read UUID: ${req.uuid}`);
  const res = await auth.checkRequest(req.uuid);
  logger.debug(res, "registrationServices");
  if (res.result) {
    const uuid = await auth.generateKey();
    const apiKey = await db.addUser(uuid, res.domain);
    if (apiKey) {
      db.delRegReq(req.uuid);
      return { status: 201, message: "User added", api_key: uuid };
    }
  }
  return { status: 401, errorCode: 703, errorMsg: errors[703] };
}

async function getUser(uuid) {
  try {
    const filter = {
      uuid: uuid,
    };
    const res = await db.query("users", filter, false);
    if (res.length) {
      return res;
    } else {
      return { status: 404, errorCode: 400, errorMsg: errors[400] };
    }
  } catch (err) {
    console.log(err);
    return { status: 500, errorCode: 951, errorMsg: errors[951] };
  }
}

module.exports = {
  regUser,
  createRegKey,
  getUser,
};