/**
 * @file openInChanges.ts — asks the Workspace page to open a file in its
 * Changes panel: a chat's "Edited N files" card names absolute paths deep in
 * a pane, the panel lives on the page, so the request travels as a window
 * event (like the sidebar's `LIVE_RUNS_EVENT`). The page opens the panel and
 * that file there, if the panel shows the same workspace; else nothing.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

export const OPEN_IN_CHANGES_EVENT = "agenthub:open-in-changes";

/** A file to open: its workspace, and its path relative to the panel's folder. */
export type OpenInChanges = { laneId: number; path: string };

/** Opens `path` (absolute) when it lies under `cwd`, the pane's folder — the
 *  folder the Changes panel reads for it. False when it does not. */
export function openInChanges(laneId: number, cwd: string, path: string): boolean {
  const base = cwd.replace(/\/+$/, "");
  if (!base || !path.startsWith(`${base}/`)) return false;
  const detail: OpenInChanges = { laneId, path: path.slice(base.length + 1) };
  window.dispatchEvent(new CustomEvent(OPEN_IN_CHANGES_EVENT, { detail }));
  return true;
}