// @vitest-environment happy-dom
//
// The sidebar's half of the command bar's action page (#151): the bar picks
// kill or rename and raises the flow the card already has, so what the page
// runs is what the ✕ button and the `r` key run.
import { afterEach, beforeAll, describe, expect, it } from "vitest";

import { KILL_SESSION_EVENT, RENAME_SESSION_EVENT, renderSidebar } from "./catalog.js";
import type { CatalogListener, CatalogStore } from "./events.js";
import type { Session } from "./types.js";

beforeAll(() => {
  Object.defineProperty(window, "localStorage", {
    value: { getItem: () => null, setItem: () => {} },
  });
});

let mounted: { el: HTMLElement; dispose: () => void } | null = null;

afterEach(() => {
  document.querySelector(".kill-dialog")?.remove();
  mounted?.dispose();
  mounted = null;
  document.body.replaceChildren();
});

function session(overrides: Partial<Session> = {}): Session {
  return {
    id: "aaaaaaaa-0000-0000-0000-0000000000ff",
    cwd: "/home/naps/tea/maestro",
    command: "claude",
    env: {},
    metadata: { name: "amber-falcon" },
    status: "Running",
    created_at: "2026-08-24T10:00:00Z",
    ...overrides,
  };
}

function storeWith(sessions: Session[]): CatalogStore {
  const state = { sessions: new Map(sessions.map((s) => [s.id, s])) };
  return {
    snapshot: () => state,
    subscribe: (fn: CatalogListener) => {
      fn(state);
      return () => {};
    },
  } as unknown as CatalogStore;
}

function mount(s: Session): HTMLElement {
  const handle = renderSidebar(storeWith([s]));
  mounted = handle;
  document.body.appendChild(handle.el);
  return handle.el;
}

function raise(name: string, s: Session): void {
  document.dispatchEvent(new CustomEvent(name, { detail: s }));
}

/** Let the kill chain's awaits (fetch, its json body) settle. */
async function flush(): Promise<void> {
  for (let i = 0; i < 8; i++) await Promise.resolve();
}

describe("kill from the action page", () => {
  it("goes through the same confirmation the sidebar raises (#160)", async () => {
    const calls: string[] = [];
    window.fetch = ((url: string, init?: RequestInit) => {
      calls.push(`${init?.method ?? "GET"} ${url}`);
      return Promise.resolve(new Response(null, { status: 204 }));
    }) as typeof fetch;
    const s = session();
    mount(s);
    raise(KILL_SESSION_EVENT, s);
    await flush();
    expect(document.querySelector(".kill-dialog")?.getAttribute("aria-label")).toBe(
      "Kill amber-falcon",
    );
    expect(calls.filter((c) => c.startsWith("DELETE"))).toHaveLength(0);
    document.querySelector<HTMLButtonElement>(".kill-dialog-kill")?.click();
    await flush();
    expect(calls).toContain(`DELETE /api/sessions/${s.id}`);
    expect(document.querySelector(".kill-dialog")).toBeNull();
  });

  it("raises the existing confirm-and-blockers dialog on a guarded refusal", async () => {
    window.fetch = ((url: string) => {
      if (String(url).includes("force=true")) {
        return Promise.resolve(new Response(null, { status: 204 }));
      }
      return Promise.resolve(
        new Response(
          JSON.stringify({
            error: {
              code: "kill_guarded",
              message: "worktree has unsaved work",
              unsaved_work: { untracked_files: 1 },
            },
          }),
          { status: 409, headers: { "content-type": "application/json" } },
        ),
      );
    }) as typeof fetch;
    const s = session({ blocked_work: { untracked_files: 1 } });
    mount(s);
    raise(KILL_SESSION_EVENT, s);
    await flush();
    document.querySelector<HTMLButtonElement>(".kill-dialog-kill")?.click();
    await flush();
    const dialog = document.querySelector(".kill-dialog");
    expect(dialog?.getAttribute("aria-label")).toBe("Kill amber-falcon");
    expect(dialog?.textContent).toContain("1 untracked file");
  });
});

describe("rename from the action page", () => {
  it("expands the folder hiding the card, since the prompt lives in the card", () => {
    window.fetch = (() => Promise.reject(new Error("offline"))) as typeof fetch;
    const s = session();
    const el = mount(s);
    const folder = el.querySelector<HTMLElement>(".tree-folder-header");
    folder?.click();
    expect(el.querySelector(`[data-session-id="${s.id}"]`)).toBeNull();
    raise(RENAME_SESSION_EVENT, s);
    expect(el.querySelector<HTMLInputElement>(".leaf-rename")?.value).toBe("amber-falcon");
  });

  it("raises the card's own prompt, pre-filled with the session's name", () => {
    window.fetch = (() => Promise.reject(new Error("offline"))) as typeof fetch;
    const s = session();
    const el = mount(s);
    raise(RENAME_SESSION_EVENT, s);
    const input = el.querySelector<HTMLInputElement>(".leaf-rename");
    expect(input?.value).toBe("amber-falcon");
    expect(input?.getAttribute("aria-label")).toBe("Rename amber-falcon");
  });
});