/* global defineEventHandler, createError, readBody */

import { baaWrapper } from "./clients.get";
import { client } from "~/utils/types/database";

const clientKeys: Array<string> = [
  "name",
  "address",
  "phone",
  "email",
];

export function checkIsClient(
  value: any,
  required = false,
): value is Partial<Omit<client, "id">> {
  const errors = new Map<string, string>();

  if (typeof value !== "object") {
    throw createError({
      statusCode: 400,
      message: "Invalid body",
    });
  }

  if (!(typeof value.name === "string" || value.name === null || (!required && value.name === undefined))) errors.set("name", "is not string or null");
  if (!(typeof value.address === "string" || value.address === null || (!required && value.address === undefined))) errors.set("address", "is not string or null");
  if (!(typeof value.phone === "string" || value.phone === null || (!required && value.phone === undefined))) errors.set("phone", "is not string or null");
  if (!(typeof value.email === "string" || value.email === null || (!required && value.email === undefined))) errors.set("email", "is not string or null");

  for (const i in value as Partial<Omit<client, "id">>)
    if (!clientKeys.includes(i)) errors.set(i, `excessive property`);

  if (errors.size !== 0) {
    let message = "Invalid Parameters: ";
    for (const i in errors)
      message += i + ", ";
    message = message.slice(0, -2);
    throw createError({
      statusCode: 400,
      message,
      data: {
        errors: Object.fromEntries(errors),
      },
    });
  }

  return true;
}

export default defineEventHandler((e) => {
  return baaWrapper.RESTpost(e, clientKeys as Array<keyof Omit<client, "id">>, (o): o is Omit<client, "id"> => checkIsClient(o, true));
});