import { type MouseEvent, useCallback } from "react";

import { stackedThreadToast, toastManager } from "../components/ui/toast";
import { readLocalApi } from "../localApi";

/**
 * Returns a click handler that opens a pull request URL in the system browser.
 *
 * Stops event propagation/default so activating the link does not also trigger
 * an enclosing row or trigger (e.g. opening the branch dropdown), and surfaces a
 * toast when the local API is unavailable or the open fails.
 */
export function useOpenPrLink() {
  return useCallback((event: MouseEvent<HTMLElement>, prUrl: string) => {
    event.preventDefault();
    event.stopPropagation();

    const api = readLocalApi();
    if (!api) {
      toastManager.add({
        type: "error",
        title: "Link opening is unavailable.",
      });
      return;
    }

    void api.shell.openExternal(prUrl).catch((error) => {
      toastManager.add(
        stackedThreadToast({
          type: "error",
          title: "Unable to open pull request link",
          description: error instanceof Error ? error.message : "An error occurred.",
        }),
      );
    });
  }, []);
}