import { existsSync } from "node:fs";
export interface SessionCwdIssue {
sessionFile?: string;
sessionCwd: string;
fallbackCwd: string;
}
interface SessionCwdSource {
getCwd(): string;
getSessionFile(): string | undefined;
}
export function getMissingSessionCwdIssue(
sessionManager: SessionCwdSource,
fallbackCwd: string,
): SessionCwdIssue | undefined {
const sessionFile = sessionManager.getSessionFile();
if (!sessionFile) {
return undefined;
}
const sessionCwd = sessionManager.getCwd();
if (!sessionCwd || existsSync(sessionCwd)) {
return undefined;
}
return {
sessionFile,
sessionCwd,
fallbackCwd,
};
}
export function formatMissingSessionCwdError(issue: SessionCwdIssue): string {
const sessionFile = issue.sessionFile ? `\nSession file: ${issue.sessionFile}` : "";
return `Stored session working directory does not exist: ${issue.sessionCwd}${sessionFile}\nCurrent working directory: ${issue.fallbackCwd}`;
}
export function formatMissingSessionCwdPrompt(issue: SessionCwdIssue): string {
return `cwd from session file does not exist\n${issue.sessionCwd}\n\ncontinue in current cwd\n${issue.fallbackCwd}`;
}
export class MissingSessionCwdError extends Error {
readonly issue: SessionCwdIssue;
constructor(issue: SessionCwdIssue) {
super(formatMissingSessionCwdError(issue));
this.name = "MissingSessionCwdError";
this.issue = issue;
}
}
export function assertSessionCwdExists(sessionManager: SessionCwdSource, fallbackCwd: string): void {
const issue = getMissingSessionCwdIssue(sessionManager, fallbackCwd);
if (issue) {
throw new MissingSessionCwdError(issue);
}
}