// @vitest-environment node
import { beforeEach, describe, expect, it, vi } from 'vitest';

const execCliMock = vi.fn();
const buildProviderAwareCliEnvMock = vi.fn();

vi.mock('@main/utils/childProcess', () => ({
  execCli: (...args: Parameters<typeof execCliMock>) => execCliMock(...args),
}));

vi.mock('@main/services/runtime/providerAwareCliEnv', () => ({
  buildProviderAwareCliEnv: (...args: Parameters<typeof buildProviderAwareCliEnvMock>) =>
    buildProviderAwareCliEnvMock(...args),
}));

import {
  CliProviderModelAvailabilityService,
  type ProviderModelAvailabilityContext,
} from '@main/services/runtime/CliProviderModelAvailabilityService';

function createContext(models: string[]): ProviderModelAvailabilityContext {
  return {
    binaryPath: '/usr/local/bin/claude',
    installedVersion: '2.3.4',
    provider: {
      providerId: 'codex',
      models,
      supported: true,
      authenticated: true,
      authMethod: 'oauth_token',
      selectedBackendId: 'chatgpt',
      resolvedBackendId: 'chatgpt',
      capabilities: {
        teamLaunch: true,
        oneShot: true,
      },
      backend: {
        kind: 'openai',
        label: 'OpenAI',
        endpointLabel: 'chatgpt.com/backend-api/codex/responses',
      },
    },
  };
}

describe('CliProviderModelAvailabilityService', () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  it('reuses probe cache for the same provider signature', async () => {
    buildProviderAwareCliEnvMock.mockResolvedValue({
      env: { HOME: '/Users/tester' },
      connectionIssues: {},
    });
    execCliMock.mockResolvedValue({ stdout: 'PONG', stderr: '' });

    const service = new CliProviderModelAvailabilityService();
    const context = createContext(['gpt-5.4', 'gpt-5.3-codex']);

    expect(service.getSnapshot(context).modelVerificationState).toBe('verifying');
    expect(service.getSnapshot(context).modelVerificationState).toBe('verifying');

    await vi.waitFor(() => {
      expect(execCliMock).toHaveBeenCalledTimes(2);
    });

    expect(service.getSnapshot(context).modelAvailability).toEqual([
      expect.objectContaining({ modelId: 'gpt-5.4', status: 'available' }),
      expect.objectContaining({ modelId: 'gpt-5.3-codex', status: 'available' }),
    ]);
    expect(execCliMock).toHaveBeenCalledTimes(2);
  });

  it('marks visible unsupported models as unavailable with the runtime reason', async () => {
    buildProviderAwareCliEnvMock.mockResolvedValue({
      env: { HOME: '/Users/tester' },
      connectionIssues: {},
    });
    execCliMock.mockRejectedValue(
      new Error(
        "The 'gpt-5.1-codex-max' model is not supported when using Codex with a ChatGPT account."
      )
    );

    const onUpdate = vi.fn();
    const service = new CliProviderModelAvailabilityService(onUpdate);
    service.getSnapshot(createContext(['gpt-5.1-codex-max']));

    await vi.waitFor(() => {
      expect(onUpdate).toHaveBeenCalledWith(
        'codex',
        expect.any(String),
        expect.objectContaining({
          modelAvailability: [
            expect.objectContaining({
              modelId: 'gpt-5.1-codex-max',
              status: 'unavailable',
              reason: 'Not available with Codex ChatGPT subscription',
            }),
          ],
        })
      );
    });
  });

  it('marks timeout-like probe failures as unknown instead of unavailable', async () => {
    buildProviderAwareCliEnvMock.mockResolvedValue({
      env: { HOME: '/Users/tester' },
      connectionIssues: {},
    });
    execCliMock.mockRejectedValue(new Error('Command timed out after 45000ms'));

    const onUpdate = vi.fn();
    const service = new CliProviderModelAvailabilityService(onUpdate);
    service.getSnapshot(createContext(['gpt-5.4']));

    await vi.waitFor(() => {
      expect(onUpdate).toHaveBeenCalledWith(
        'codex',
        expect.any(String),
        expect.objectContaining({
          modelAvailability: [
            expect.objectContaining({
              modelId: 'gpt-5.4',
              status: 'unknown',
              reason: 'Model verification timed out',
            }),
          ],
        })
      );
    });
  });

  it('invalidates the cache when the provider signature changes', async () => {
    buildProviderAwareCliEnvMock.mockResolvedValue({
      env: { HOME: '/Users/tester' },
      connectionIssues: {},
    });
    execCliMock.mockResolvedValue({ stdout: 'PONG', stderr: '' });

    const service = new CliProviderModelAvailabilityService();
    service.getSnapshot(createContext(['gpt-5.4']));

    await vi.waitFor(() => {
      expect(execCliMock).toHaveBeenCalledTimes(1);
    });

    service.getSnapshot(createContext(['gpt-5.4', 'gpt-5.2']));

    await vi.waitFor(() => {
      expect(execCliMock).toHaveBeenCalledTimes(3);
    });
  });
});