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/*
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 *  This file is part of CoCalc: Copyright © 2022 Sagemath, Inc.
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 *  License: MS-RSL – see LICENSE.md for details
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 */
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/*
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Paths to temporary files used by the project.
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*/
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import { join } from "path";
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import { data } from "@cocalc/backend/data";
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import { is_valid_uuid_string } from "@cocalc/util/misc";
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import { pidFilename } from "@cocalc/util/project-info";
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export const infoJson = join(data, "info.json");
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export const hubPortFile = join(data, "hub-server.port");
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export const apiServerPortFile = join(data, "api-server.port");
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export const browserPortFile = join(data, "browser-server.port");
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export const projectPidFile = join(data, pidFilename);
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export const startTimestampFile = join(data, "start-timestamp.txt");
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export const sessionIDFile = join(data, "session-id.txt");
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export const rootSymlink = join(data, "root");
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export const SSH_LOG = join(data, "sshd.log");
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export const SSH_ERR = join(data, "sshd.err");
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export const compute_server_id = parseInt(process.env.COMPUTE_SERVER_ID ?? "0");
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export const sageServerPaths = {
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  log: join(data, "sage_server", "sage_server.log"),
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  pid: join(data, "sage_server", "sage_server.pid"),
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  port: join(data, "sage_server", "sage_server.port"),
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} as const;
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// secret token must be after compute_server_id is set, since it uses it.
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export { secretToken } from "./secret-token";
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// note that the "username" need not be the output of `whoami`, e.g.,
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// when using a cc-in-cc dev project where users are "virtual".
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function getIDs() {
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  let project_id;
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  if (process.env.COCALC_PROJECT_ID) {
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    project_id = process.env.COCALC_PROJECT_ID;
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  } else {
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    if (!process.env.HOME) {
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      throw Error("HOME not defined, so no way to determine project_id");
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    }
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    const v = process.env.HOME.split("/");
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    project_id = v[v.length - 1];
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    if (!is_valid_uuid_string(project_id)) {
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      throw Error("unable to determine project_id from HOME directory path");
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    }
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  }
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  // Throw in some consistency checks:
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  if (!is_valid_uuid_string(project_id)) {
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    throw Error(`project_id=${project_id} is not a valid UUID`);
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  }
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  const username = process.env.COCALC_USERNAME ?? project_id.replace(/-/g, "");
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  return { project_id, username };
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}
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export const { project_id, username } = getIDs();
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