/*
 * Copyright 2014-present Facebook, Inc.
 *
 * 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.
 */

package com.facebook.buck.apple;

import static org.junit.Assert.assertTrue;
import static org.junit.Assume.assumeTrue;

import com.facebook.buck.cli.BuckConfig;
import com.facebook.buck.cli.FakeBuckConfig;
import com.facebook.buck.testutil.TestConsole;
import com.facebook.buck.testutil.integration.DebuggableTemporaryFolder;
import com.facebook.buck.testutil.integration.ProjectWorkspace;
import com.facebook.buck.testutil.integration.TestDataHelper;
import com.facebook.buck.util.BuckConstant;
import com.facebook.buck.util.Console;
import com.facebook.buck.util.ProcessExecutor;
import com.facebook.buck.util.environment.Platform;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

import org.junit.Rule;
import org.junit.Test;

import java.io.IOException;
import java.nio.file.Files;

public class AppleLibraryIntegrationTest {

  @Rule
  public DebuggableTemporaryFolder tmp = new DebuggableTemporaryFolder();

  @Test
  public void testAppleLibraryBuildsSomething() throws IOException {
    assumeTrue(Platform.detect() == Platform.MACOS);
    ProjectWorkspace workspace = TestDataHelper.createProjectWorkspaceForScenario(
        this, "apple_library_builds_something", tmp);
    workspace.setUp();

    ProjectWorkspace.ProcessResult result = workspace.runBuckCommand(
        "build",
        "//Libraries/TestLibrary:TestLibrary#static,default");
    result.assertSuccess();

    assertTrue(Files.exists(tmp.getRootPath().resolve(BuckConstant.GEN_DIR)));
  }

  @Test
  public void testAppleLibraryBuildsSomethingUsingAppleCxxPlatform() throws IOException {
    assumeTrue(Platform.detect() == Platform.MACOS);
    assumeTrue(isApplePlatformAvailable(ApplePlatform.MACOSX));

    ProjectWorkspace workspace = TestDataHelper.createProjectWorkspaceForScenario(
        this, "apple_library_builds_something", tmp);
    workspace.setUp();

    ProjectWorkspace.ProcessResult result = workspace.runBuckCommand(
        "build",
        "//Libraries/TestLibrary:TestLibrary#static,macosx-x86_64");
    result.assertSuccess();

    assertTrue(Files.exists(tmp.getRootPath().resolve(BuckConstant.GEN_DIR)));
  }

  private static boolean isApplePlatformAvailable(final ApplePlatform platform) {
    BuckConfig buckConfig = new FakeBuckConfig();
    AppleConfig appleConfig = new AppleConfig(buckConfig);
    Console console = new TestConsole();
    ProcessExecutor executor = new ProcessExecutor(console);
    return Iterables.any(
        appleConfig.getAppleSdkPaths(executor).keySet(),
        new Predicate<AppleSdk>() {
            @Override
            public boolean apply(AppleSdk sdk) {
              return sdk.getApplePlatform() == platform;
            }
        });
  }
}