export-chat

import path from "path";

export type WorkingDirectoryInfo = {
  workingDirectoryRaw: string;
  workingDirectoryTrimmed: string;
  isAbsolute: boolean;
  resolvedPath: string;
  chatId: string;
  chatIdValid13Digits: boolean;
  parentDirName: string;
  looksLikeLMStudioWorkingDir: boolean;
  lmHomeFromWorkingDir: string | null;
};

export function getWorkingDirectoryInfo(workingDirectoryRaw: string): WorkingDirectoryInfo {
  const workingDirectoryTrimmed = String(workingDirectoryRaw ?? "").trim();
  const isAbsolute = path.isAbsolute(workingDirectoryTrimmed);
  const resolvedPath = isAbsolute
    ? workingDirectoryTrimmed
    : path.resolve(process.cwd(), workingDirectoryTrimmed);
  const chatId = path.basename(workingDirectoryTrimmed);
  const chatIdValid13Digits = /^[0-9]{13}$/.test(chatId);
  const parentDirName = path.basename(path.dirname(workingDirectoryTrimmed));
  const looksLikeLMStudioWorkingDir = parentDirName === "working-directories" && chatIdValid13Digits;
  const lmHomeFromWorkingDir = looksLikeLMStudioWorkingDir
    ? path.dirname(path.dirname(workingDirectoryTrimmed))
    : null;

  return {
    workingDirectoryRaw: String(workingDirectoryRaw ?? ""),
    workingDirectoryTrimmed,
    isAbsolute,
    resolvedPath,
    chatId,
    chatIdValid13Digits,
    parentDirName,
    looksLikeLMStudioWorkingDir,
    lmHomeFromWorkingDir,
  };
}