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import { render, screen } from "@testing-library/react";
import type { ReactNode } from "react";
import { describe, expect, it, vi } from "vitest";
import { HookExecutionEventMessage } from "#/components/shared/hook-execution-event-message";
import { I18nKey } from "#/i18n/declaration";
import type {
  HookExecutionEvent,
  OpenHandsEvent,
} from "#/types/agent-server/core";

vi.mock("react-i18next", () => ({
  useTranslation: (namespace: string) => ({
    t: (key: string) =>
      namespace === "openhands" ? key : `wrong-namespace:${key}`,
  }),
}));

vi.mock("#/components/features/chat/generic-event-message", () => ({
  GenericEventMessage: ({
    title,
    details,
    success,
  }: {
    title: ReactNode;
    details: ReactNode;
    success?: "success" | "error";
  }) => (
    <section
      data-testid="generic-event-message"
      data-success={success ?? "none"}
    >
      <header>{title}</header>
      <div>{details}</div>
    </section>
  ),
}));

const makeHookEvent = (
  overrides: Partial<HookExecutionEvent> = {},
): HookExecutionEvent => ({
  id: "hook-event-1",
  timestamp: "2026-07-12T00:00:00.000Z",
  source: "hook",
  kind: "HookExecutionEvent",
  hook_event_type: "PreToolUse",
  hook_command: "npm test",
  success: true,
  blocked: false,
  exit_code: null,
  reason: null,
  tool_name: null,
  action_id: null,
  message_id: null,
  stdout: null,
  stderr: null,
  error: null,
  additional_context: null,
  hook_input: null,
  ...overrides,
});

const renderHookEvent = (overrides: Partial<HookExecutionEvent> = {}) =>
  render(<HookExecutionEventMessage event={makeHookEvent(overrides)} />);

describe("hook execution event message", () => {
  it("renders nothing for an event from another event family", () => {
    const event = {
      id: "state-event-1",
      timestamp: "2026-07-12T00:00:00.000Z",
      source: "agent",
      kind: "ConversationStateUpdateEvent",
      key: "execution_status",
      value: "idle",
    } as unknown as OpenHandsEvent;

    const { container } = render(<HookExecutionEventMessage event={event} />);

    expect(container).toBeEmptyDOMElement();
  });

  it.each([
    ["PreToolUse", "โณ"],
    ["PostToolUse", "โœ…"],
    ["UserPromptSubmit", "๐Ÿ“"],
    ["SessionStart", "๐Ÿš€"],
    ["SessionEnd", "๐Ÿ"],
    ["Stop", "โน๏ธ"],
    ["FutureHook", "๐Ÿ”—"],
  ])("uses the expected icon for %s hooks", (hookType, icon) => {
    renderHookEvent({
      hook_event_type: hookType as HookExecutionEvent["hook_event_type"],
    });

    const message = screen.getByTestId("generic-event-message");
    expect(message).toHaveTextContent(
      `${icon} ${I18nKey.HOOK$HOOK_LABEL}: ${hookType}`,
    );
    expect(message).toHaveAttribute("data-success", "success");
    expect(screen.getByText("ok")).toHaveClass(
      "bg-green-900/50",
      "text-green-300",
    );
  });

  it("shows all available metadata for a blocked hook", () => {
    renderHookEvent({
      hook_event_type: "PostToolUse",
      hook_command: "check-policy",
      success: false,
      blocked: true,
      exit_code: 13,
      reason: "Command denied by policy",
      tool_name: "terminal",
      stdout: "policy output",
      stderr: "policy warning",
      error: "hook failed",
      additional_context: "workspace is protected",
    });

    const message = screen.getByTestId("generic-event-message");
    expect(message).toHaveAttribute("data-success", "none");
    expect(message).toHaveTextContent(
      `๐Ÿšซ ${I18nKey.HOOK$HOOK_LABEL}: PostToolUse`,
    );
    expect(screen.getByText("(terminal)")).toBeInTheDocument();
    expect(screen.getByText("blocked")).toHaveClass(
      "ml-2",
      "px-1",
      "py-0.5",
      "rounded",
      "text-xs",
      "bg-amber-900/50",
      "text-amber-300",
    );
    expect(message).toHaveTextContent(`${I18nKey.HOOK$COMMAND}: check-policy`);
    expect(message).toHaveTextContent(`${I18nKey.HOOK$EXIT_CODE}: 13`);
    expect(message).toHaveTextContent(
      `${I18nKey.HOOK$BLOCKED_REASON}: Command denied by policy`,
    );
    expect(message).toHaveTextContent(
      `${I18nKey.HOOK$CONTEXT}: workspace is protected`,
    );
    expect(message).toHaveTextContent(`${I18nKey.HOOK$ERROR}: hook failed`);
    expect(message).toHaveTextContent(`${I18nKey.HOOK$OUTPUT}:policy output`);
    expect(message).toHaveTextContent(`${I18nKey.HOOK$STDERR}:policy warning`);
  });

  it("shows a failed status and truncates commands longer than 80 characters", () => {
    const longCommand = "x".repeat(100);
    renderHookEvent({
      hook_command: longCommand,
      success: false,
      reason: "not shown unless blocked",
    });

    const message = screen.getByTestId("generic-event-message");
    expect(message).toHaveAttribute("data-success", "error");
    expect(screen.getByText("failed")).toHaveClass(
      "bg-red-900/50",
      "text-red-300",
    );
    expect(screen.getByText(`${"x".repeat(77)}...`)).toBeInTheDocument();
    expect(message).not.toHaveTextContent(longCommand);
    expect(message).not.toHaveTextContent(I18nKey.HOOK$BLOCKED_REASON);
  });

  it("keeps an exactly 80-character command intact", () => {
    const command = "y".repeat(80);
    renderHookEvent({ hook_command: command });

    expect(screen.getByText(command)).toBeInTheDocument();
    expect(screen.getByTestId("generic-event-message")).not.toHaveTextContent(
      `${"y".repeat(77)}...`,
    );
  });

  it("omits a blocked-reason row when a blocked hook has no reason", () => {
    renderHookEvent({ blocked: true, reason: null });

    const message = screen.getByTestId("generic-event-message");
    expect(message).toHaveAttribute("data-success", "none");
    expect(message).not.toHaveTextContent(I18nKey.HOOK$BLOCKED_REASON);
  });

  it("omits the exit-code row when no exit code is available", () => {
    renderHookEvent({ exit_code: null });

    expect(screen.getByTestId("generic-event-message")).not.toHaveTextContent(
      I18nKey.HOOK$EXIT_CODE,
    );
  });
});