import { beforeEach, describe, expect, it, vi } from "vitest";
import type { OpenClawConfig } from "../../config/types.openclaw.js";

const getRuntimeConfigMock = vi.fn();
const mutateConfigFileMock = vi.fn();
const replaceConfigFileMock = vi.fn();
const logWarnMock = vi.fn();

vi.mock("../../config/config.js", () => ({
  getRuntimeConfig: () => getRuntimeConfigMock(),
}));

vi.mock("../../config/mutate.js", () => ({
  mutateConfigFile: (...args: unknown[]) => mutateConfigFileMock(...args),
  replaceConfigFile: (...args: unknown[]) => replaceConfigFileMock(...args),
}));

vi.mock("../../logger.js", () => ({
  logWarn: (...args: unknown[]) => logWarnMock(...args),
}));

const { createRuntimeConfig } = await import("./runtime-config.js");
const deprecatedConfigCode = "runtime-config-load-write";

describe("createRuntimeConfig", () => {
  beforeEach(() => {
    getRuntimeConfigMock.mockReset();
    mutateConfigFileMock.mockReset();
    replaceConfigFileMock.mockReset();
    logWarnMock.mockClear();
    getRuntimeConfigMock.mockReturnValue({ plugins: {} });
    mutateConfigFileMock.mockResolvedValue({ previousHash: null, nextHash: "next" });
    replaceConfigFileMock.mockResolvedValue({ previousHash: null, nextHash: "next" });
  });

  it("reads config from the runtime snapshot for current and deprecated loadConfig", () => {
    const runtimeConfig = { plugins: { entries: {} } };
    getRuntimeConfigMock.mockReturnValue(runtimeConfig);
    const configApi = createRuntimeConfig();

    expect(configApi.current()).toBe(runtimeConfig);
    expect(configApi.loadConfig()).toBe(runtimeConfig);
    expect(getRuntimeConfigMock).toHaveBeenCalledTimes(2);
    expect(logWarnMock).toHaveBeenCalledWith(
      `plugin runtime config.loadConfig() is deprecated (${deprecatedConfigCode}); use config.current().`,
    );
  });

  it("routes deprecated writeConfigFile through replaceConfigFile with afterWrite", async () => {
    const configApi = createRuntimeConfig();
    const nextConfig = { plugins: { entries: {} } } as OpenClawConfig;

    await configApi.writeConfigFile(nextConfig);

    expect(logWarnMock).toHaveBeenCalledWith(
      `plugin runtime config.writeConfigFile() is deprecated (${deprecatedConfigCode}); use config.mutateConfigFile(...) or config.replaceConfigFile(...).`,
    );
    expect(replaceConfigFileMock).toHaveBeenCalledWith({
      nextConfig,
      afterWrite: { mode: "auto" },
      writeOptions: undefined,
    });
  });

  it("preserves explicit afterWrite intent for deprecated writeConfigFile", async () => {
    const configApi = createRuntimeConfig();
    const nextConfig = { plugins: { entries: {} } } as OpenClawConfig;

    await configApi.writeConfigFile(nextConfig, {
      afterWrite: { mode: "none", reason: "test-controlled" },
    });

    expect(replaceConfigFileMock).toHaveBeenCalledWith({
      nextConfig,
      afterWrite: { mode: "none", reason: "test-controlled" },
      writeOptions: { afterWrite: { mode: "none", reason: "test-controlled" } },
    });
  });
});