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/*
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Clone compute server config.  Entirely done client side.
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Main issue is DNS can't be the same.
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In the future we will ALSO support a checkbox to clone the data too, but not yet.
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*/
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import { Alert, Modal } from "antd";
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import { useState } from "react";
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import ShowError from "@cocalc/frontend/components/error";
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import Inline from "./inline";
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import { createServer, getServersById } from "./api";
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import type { ComputeServerUserInfo } from "@cocalc/util/db-schema/compute-servers";
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export default function Clone({ id, close }) {
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  const [error, setError] = useState<string>("");
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  const [loading, setLoading] = useState<boolean>(false);
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  return (
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    <Modal
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      width={700}
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      open
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      confirmLoading={loading}
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      onCancel={close}
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      onOk={async () => {
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        try {
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          setLoading(true);
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          await createClone({ id });
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          close();
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        } catch (err) {
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          setError(`${err}`);
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        } finally {
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          setLoading(false);
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        }
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      }}
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      title={
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        <>
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          Clone Compute Server <Inline id={id} />
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        </>
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      }
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      okText={
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        <>
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          Clon{loading ? "ing" : "e"} <Inline id={id} />
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        </>
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      }
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    >
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      <ShowError
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        error={error}
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        setError={setError}
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        style={{ marginBottom: "15px" }}
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      />
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      This makes a new deprovisioned compute server that is configured as close
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      as possibleto this this compute server.{" "}
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      <Alert
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        showIcon
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        style={{ margin: "15px" }}
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        type="warning"
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        message="The underlying disk is not copied."
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      />
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      After cloning the compute server, you can edit anything about its
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      configuration before starting it.
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    </Modal>
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  );
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}
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export async function cloneConfiguration({
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  id,
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  noChange,
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}: {
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  id: number;
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  noChange?: boolean;
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}) {
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  const servers = await getServersById({ ids: [id] });
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  if (servers.length == 0) {
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    throw Error(`no such compute server ${id}`);
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  }
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  const server = servers[0] as ComputeServerUserInfo;
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  if (!noChange) {
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    let n = 1;
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    let title = `Clone of ${server.title}`;
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    const titles = new Set(servers.map((x) => x.title));
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    if (titles.has(title)) {
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      while (titles.has(title + ` (${n})`)) {
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        n += 1;
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      }
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      title = title + ` (${n})`;
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    }
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    server.title = title;
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  }
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  delete server.configuration.authToken;
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  return server;
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}
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async function createClone({ id }: { id: number }) {
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  const server = await cloneConfiguration({ id });
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  await createServer({ ...server });
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}
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