/**
 * Copyright 2023 actions-toolkit authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import {afterEach, beforeEach, describe, expect, it, jest} from '@jest/globals';
import path from 'path';
import osm = require('os');

import {Docker} from '../src/docker';
import {Exec} from '../src/exec';

beforeEach(() => {
  jest.clearAllMocks();
});

describe('configDir', () => {
  const originalEnv = process.env;
  beforeEach(() => {
    jest.resetModules();
    process.env = {
      ...originalEnv,
      DOCKER_CONFIG: '/var/docker/config'
    };
  });
  afterEach(() => {
    process.env = originalEnv;
  });
  it('returns default', async () => {
    process.env.DOCKER_CONFIG = '';
    jest.spyOn(osm, 'homedir').mockImplementation(() => path.join('/tmp', 'home'));
    expect(Docker.configDir).toEqual(path.join('/tmp', 'home', '.docker'));
  });
  it('returns from env', async () => {
    expect(Docker.configDir).toEqual('/var/docker/config');
  });
});

describe('isAvailable', () => {
  it('cli', async () => {
    const execSpy = jest.spyOn(Exec, 'getExecOutput');
    await Docker.isAvailable();
    // eslint-disable-next-line jest/no-standalone-expect
    expect(execSpy).toHaveBeenCalledWith(`docker`, [], {
      silent: true,
      ignoreReturnCode: true
    });
  });
});

describe('printVersion', () => {
  it('call docker version', async () => {
    const execSpy = jest.spyOn(Exec, 'exec');
    await Docker.printVersion().catch(() => {
      // noop
    });
    expect(execSpy).toHaveBeenCalledWith(`docker`, ['version']);
  });
});

describe('printInfo', () => {
  it('call docker info', async () => {
    const execSpy = jest.spyOn(Exec, 'exec');
    await Docker.printInfo().catch(() => {
      // noop
    });
    expect(execSpy).toHaveBeenCalledWith(`docker`, ['info']);
  });
});