/**
 * @file WorkspaceRowMenu — the sidebar workspace row's context menu, opened at
 * the pointer (right-click) or under the row's `⋯` button. Every item is an
 * existing call: Start/Stop (`POST /api/lanes/:id/start` slot 0 / `stop`),
 * Rename (the row's inline field), Create/update readme (claude only, the same run
 * the lane Tools menu starts), New workspace here (the Add modal prefilled),
 * Copy path, and Reset/Remove through `DestructiveLaneModal` — Reset only on a
 * managed lane. The server's guards are the real ones; the menu only hides
 * what the lane's kind or tool makes meaningless. Closes on Escape, an outside
 * click or after an item runs.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { useEffect, useRef, useState } from "react";
import { useTranslation } from "react-i18next";
import { api } from "../../lib/api";
import type { Lane } from "../../lib/types";

export type WorkspaceMenuAction = "rename" | "new-here" | "reset" | "remove" | "started";

export function WorkspaceRowMenu({
  lane,
  x,
  y,
  onClose,
  onAction,
}: {
  lane: Lane;
  x: number;
  y: number;
  onClose: () => void;
  /** Items the tree itself carries out (rename field, modals, selection). */
  onAction: (action: WorkspaceMenuAction) => void;
}) {
  const { t } = useTranslation("lanes");
  const ref = useRef<HTMLDivElement>(null);
  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    const onDown = (e: MouseEvent) => {
      if (!ref.current?.contains(e.target as Node)) onClose();
    };
    const onKey = (e: KeyboardEvent) => {
      if (e.key === "Escape") onClose();
    };
    document.addEventListener("mousedown", onDown);
    document.addEventListener("keydown", onKey);
    return () => {
      document.removeEventListener("mousedown", onDown);
      document.removeEventListener("keydown", onKey);
    };
  }, [onClose]);

  const run = async (fn: () => Promise<unknown>, then?: WorkspaceMenuAction) => {
    setError(null);
    try {
      await fn();
      if (then) onAction(then);
      onClose();
    } catch (err) {
      setError(err instanceof Error ? err.message : String(err));
    }
  };
  const live = !!lane.run_id || lane.status === "running";
  const item =
    "block w-full rounded px-2 py-1 text-left text-xs text-fg-secondary hover:bg-surface-4 hover:text-fg-primary";

  return (
    <div
      ref={ref}
      role="menu"
      data-testid={`workspace-row-menu-${lane.id}`}
      style={{
        left: Math.min(x, window.innerWidth - 232),
        top: Math.min(y, window.innerHeight - 320),
      }}
      className="fixed z-50 w-56 rounded-lg border border-border bg-surface-2 p-1 shadow-lg"
    >
      <button
        type="button"
        role="menuitem"
        className={item}
        onClick={() =>
          live
            ? void run(() => api.lanes.action(lane.id, "stop"))
            : void run(() => api.lanes.action(lane.id, "start", { slot: 0, prompt: "" }), "started")
        }
      >
        {live ? t("menu.stop") : t("menu.start")}
      </button>
      <button type="button" role="menuitem" className={item} onClick={() => onAction("rename")}>
        {t("menu.rename")}
      </button>
      {lane.tool === "claude" && (
        <button
          type="button"
          role="menuitem"
          className={item}
          onClick={() =>
            void run(
              () =>
                api.run.start({
                  laneId: lane.id,
                  cwd: lane.cwd,
                  initialPrompt: "/sg-all:sg-md-writing",
                }),
              "started"
            )
          }
        >
          {t("actions.writeDocs")}
        </button>
      )}
      <button type="button" role="menuitem" className={item} onClick={() => onAction("new-here")}>
        {t("menu.newHere")}
      </button>
      <button
        type="button"
        role="menuitem"
        className={item}
        onClick={() => void run(() => navigator.clipboard.writeText(lane.cwd))}
      >
        {t("menu.copyPath")}
      </button>
      <div className="my-1 border-t border-border" />
      {lane.kind === "managed" && (
        <button
          type="button"
          role="menuitem"
          className={`${item} !text-status-danger`}
          onClick={() => onAction("reset")}
        >
          {t("menu.reset")}
        </button>
      )}
      <button
        type="button"
        role="menuitem"
        className={`${item} !text-status-danger`}
        onClick={() => onAction("remove")}
      >
        {t("menu.remove")}
      </button>
      {error && (
        <p role="alert" className="px-2 py-1 text-[11px] text-status-danger">
          {error}
        </p>
      )}
    </div>
  );
}