import { Command } from "commander";
import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";

const callGateway = vi.fn();
const withProgress = vi.fn(async (_opts: unknown, fn: () => Promise<unknown>) => await fn());
const runtime = {
  log: vi.fn(),
  error: vi.fn(),
  exit: vi.fn(),
};

vi.mock("../gateway/call.js", () => ({
  callGateway,
}));

vi.mock("./progress.js", () => ({
  withProgress,
}));

vi.mock("../runtime.js", () => ({
  defaultRuntime: runtime,
}));

let registerDevicesCli: typeof import("./devices-cli.js").registerDevicesCli;

beforeAll(async () => {
  ({ registerDevicesCli } = await import("./devices-cli.js"));
});

async function runDevicesApprove(argv: string[]) {
  await runDevicesCommand(["approve", ...argv]);
}

async function runDevicesCommand(argv: string[]) {
  const program = new Command();
  registerDevicesCli(program);
  await program.parseAsync(["devices", ...argv], { from: "user" });
}

describe("devices cli approve", () => {
  it("approves an explicit request id without listing", async () => {
    callGateway.mockResolvedValueOnce({ device: { deviceId: "device-1" } });

    await runDevicesApprove(["req-123"]);

    expect(callGateway).toHaveBeenCalledTimes(1);
    expect(callGateway).toHaveBeenCalledWith(
      expect.objectContaining({
        method: "device.pair.approve",
        params: { requestId: "req-123" },
      }),
    );
  });

  it.each([
    {
      name: "id is omitted",
      args: [] as string[],
      pending: [
        { requestId: "req-1", ts: 1000 },
        { requestId: "req-2", ts: 2000 },
      ],
      expectedRequestId: "req-2",
    },
    {
      name: "--latest is passed",
      args: ["req-old", "--latest"] as string[],
      pending: [
        { requestId: "req-2", ts: 2000 },
        { requestId: "req-3", ts: 3000 },
      ],
      expectedRequestId: "req-3",
    },
  ])("uses latest pending request when $name", async ({ args, pending, expectedRequestId }) => {
    callGateway
      .mockResolvedValueOnce({
        pending,
      })
      .mockResolvedValueOnce({ device: { deviceId: "device-2" } });

    await runDevicesApprove(args);

    expect(callGateway).toHaveBeenNthCalledWith(
      1,
      expect.objectContaining({ method: "device.pair.list" }),
    );
    expect(callGateway).toHaveBeenNthCalledWith(
      2,
      expect.objectContaining({
        method: "device.pair.approve",
        params: { requestId: expectedRequestId },
      }),
    );
  });

  it("prints an error and exits when no pending requests are available", async () => {
    callGateway.mockResolvedValueOnce({ pending: [] });

    await runDevicesApprove([]);

    expect(callGateway).toHaveBeenCalledTimes(1);
    expect(callGateway).toHaveBeenCalledWith(
      expect.objectContaining({ method: "device.pair.list" }),
    );
    expect(runtime.error).toHaveBeenCalledWith("No pending device pairing requests to approve");
    expect(runtime.exit).toHaveBeenCalledWith(1);
    expect(callGateway).not.toHaveBeenCalledWith(
      expect.objectContaining({ method: "device.pair.approve" }),
    );
  });
});

describe("devices cli remove", () => {
  it("removes a paired device by id", async () => {
    callGateway.mockResolvedValueOnce({ deviceId: "device-1" });

    await runDevicesCommand(["remove", "device-1"]);

    expect(callGateway).toHaveBeenCalledTimes(1);
    expect(callGateway).toHaveBeenCalledWith(
      expect.objectContaining({
        method: "device.pair.remove",
        params: { deviceId: "device-1" },
      }),
    );
  });
});

describe("devices cli clear", () => {
  it("requires --yes before clearing", async () => {
    await runDevicesCommand(["clear"]);

    expect(callGateway).not.toHaveBeenCalled();
    expect(runtime.error).toHaveBeenCalledWith("Refusing to clear pairing table without --yes");
    expect(runtime.exit).toHaveBeenCalledWith(1);
  });

  it("clears paired devices and optionally pending requests", async () => {
    callGateway
      .mockResolvedValueOnce({
        paired: [{ deviceId: "device-1" }, { deviceId: "device-2" }],
        pending: [{ requestId: "req-1" }],
      })
      .mockResolvedValueOnce({ deviceId: "device-1" })
      .mockResolvedValueOnce({ deviceId: "device-2" })
      .mockResolvedValueOnce({ requestId: "req-1", deviceId: "device-1" });

    await runDevicesCommand(["clear", "--yes", "--pending"]);

    expect(callGateway).toHaveBeenNthCalledWith(
      1,
      expect.objectContaining({ method: "device.pair.list" }),
    );
    expect(callGateway).toHaveBeenNthCalledWith(
      2,
      expect.objectContaining({ method: "device.pair.remove", params: { deviceId: "device-1" } }),
    );
    expect(callGateway).toHaveBeenNthCalledWith(
      3,
      expect.objectContaining({ method: "device.pair.remove", params: { deviceId: "device-2" } }),
    );
    expect(callGateway).toHaveBeenNthCalledWith(
      4,
      expect.objectContaining({ method: "device.pair.reject", params: { requestId: "req-1" } }),
    );
  });
});

describe("devices cli tokens", () => {
  it.each([
    {
      label: "rotates a token for a device role",
      argv: [
        "rotate",
        "--device",
        "device-1",
        "--role",
        "main",
        "--scope",
        "messages:send",
        "--scope",
        "messages:read",
      ],
      expectedCall: {
        method: "device.token.rotate",
        params: {
          deviceId: "device-1",
          role: "main",
          scopes: ["messages:send", "messages:read"],
        },
      },
    },
    {
      label: "revokes a token for a device role",
      argv: ["revoke", "--device", "device-1", "--role", "main"],
      expectedCall: {
        method: "device.token.revoke",
        params: {
          deviceId: "device-1",
          role: "main",
        },
      },
    },
  ])("$label", async ({ argv, expectedCall }) => {
    callGateway.mockResolvedValueOnce({ ok: true });
    await runDevicesCommand(argv);
    expect(callGateway).toHaveBeenCalledWith(expect.objectContaining(expectedCall));
  });

  it("rejects blank device or role values", async () => {
    await runDevicesCommand(["rotate", "--device", " ", "--role", "main"]);

    expect(callGateway).not.toHaveBeenCalled();
    expect(runtime.error).toHaveBeenCalledWith("--device and --role required");
    expect(runtime.exit).toHaveBeenCalledWith(1);
  });
});

afterEach(() => {
  callGateway.mockReset();
  withProgress.mockClear();
  runtime.log.mockReset();
  runtime.error.mockReset();
  runtime.exit.mockReset();
});