// Copyright 2019 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.lib.rules.apple;

import static com.google.common.truth.Truth.assertThat;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.AbstractAction;
import com.google.devtools.build.lib.actions.ActionAnalysisMetadata;
import com.google.devtools.build.lib.analysis.AnalysisResult;
import com.google.devtools.build.lib.analysis.ConfiguredAspect;
import com.google.devtools.build.lib.analysis.config.BuildConfigurationValue;
import com.google.devtools.build.lib.analysis.util.AnalysisTestCase;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.StarlarkProvider;
import com.google.devtools.build.lib.packages.StructImpl;
import com.google.devtools.build.lib.packages.util.MockObjcSupport;
import net.starlark.java.eval.Sequence;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for the action properties on rule configured targets of Apple related rules. */
@RunWith(JUnit4.class)
public class AppleRulesTest extends AnalysisTestCase {

  @Before
  public void setup() throws Exception {
    MockObjcSupport.setup(mockToolsConfig);
    scratch.file(
        "test/aspect.bzl",
        "foo = provider()",
        "def _impl(target, ctx):",
        "    return [foo(actions = target.actions)]",
        "MyAspect = aspect(implementation=_impl)");
    scratch.file(
        "xcode/BUILD",
        "xcode_version(",
        "    name = 'version10_1_0',",
        "    version = '10.1.0',",
        "    aliases = ['10.1' ,'10.1.0'],",
        "    default_ios_sdk_version = '12.1',",
        "    default_tvos_sdk_version = '12.1',",
        "    default_macos_sdk_version = '10.14',",
        "    default_watchos_sdk_version = '5.1',",
        ")",
        "xcode_version(",
        "    name = 'version10_2_1',",
        "    version = '10.2.1',",
        "    aliases = ['10.2.1' ,'10.2'],",
        "    default_ios_sdk_version = '12.2',",
        "    default_tvos_sdk_version = '12.2',",
        "    default_macos_sdk_version = '10.14',",
        "    default_watchos_sdk_version = '5.2',",
        ")",
        "available_xcodes(",
        "    name= 'xcodes_a',",
        "    versions = [':version10_1_0'],",
        "    default = ':version10_1_0',",
        ")",
        "available_xcodes(",
        "    name= 'xcodes_b',",
        "    versions = [':version10_2_1'],",
        "    default = ':version10_2_1',",
        ")",
        "xcode_config(",
        "    name = 'local',",
        "    local_versions = ':xcodes_a',",
        "    remote_versions = ':xcodes_b',",
        ")",
        "xcode_config(",
        "    name = 'mutual',",
        "    local_versions = ':xcodes_b',",
        "    remote_versions = ':xcodes_b',",
        ")");
    scratch.file(
        "test/BUILD",
        "cc_library(",
        "    name = 'xxx',",
        "    srcs = ['dep1.cc'],",
        "    hdrs = ['dep1.h'],",
        "    includes = ['dep1/baz'],",
        "    defines = ['DEP1'],",
        ")");
  }

  @Test
  public void executionRequirementsSetCcLibrary() throws Exception {
    ImmutableList<String> flags =
        ImmutableList.<String>builder()
            .addAll(MockObjcSupport.requiredObjcCrosstoolFlagsNoXcodeConfig())
            .add("--xcode_version_config=//xcode:local")
            .add("--cpu=darwin_x86_64")
            .build();
    useConfiguration(flags.toArray(new String[1]));
    AnalysisResult analysisResult =
        update(ImmutableList.of("test/aspect.bzl%MyAspect"), "//test:xxx");

    ConfiguredAspect configuredAspect =
        Iterables.getOnlyElement(analysisResult.getAspectsMap().values());

    StarlarkProvider.Key fooKey =
        new StarlarkProvider.Key(
            Label.parseAbsolute("//test:aspect.bzl", ImmutableMap.of()), "foo");

    StructImpl fooProvider = (StructImpl) configuredAspect.get(fooKey);
    assertThat(fooProvider.getValue("actions")).isNotNull();
    @SuppressWarnings("unchecked")
    Sequence<ActionAnalysisMetadata> actions =
        (Sequence<ActionAnalysisMetadata>) fooProvider.getValue("actions");
    assertThat(actions).isNotEmpty();

    for (ActionAnalysisMetadata action : actions) {
      assertThat(action).isInstanceOf(AbstractAction.class);
      if (action.getExecutionInfo().containsKey("requires-darwin")) {
        assertThat(action.getExecutionInfo()).containsKey("supports-xcode-requirements-set");
        assertThat(action.getExecutionInfo()).containsKey("no-remote");
      }
    }
  }

  @Test
  public void dottedVersionOptionIsReadableFromStarlarkTransition() throws Exception {
    // Test that DottedVersion.Option is readable from a Starlark transition, since it is a distinct
    // type from DottedVersion (see the documentation comment on DottedVersion.Option for the
    // rationale).
    scratch.overwriteFile(
        "tools/allowlists/function_transition_allowlist/BUILD",
        "package_group(",
        "    name = 'function_transition_allowlist',",
        "    packages = ['//...'],",
        ")",
        "filegroup(",
        "    name = 'srcs',",
        "    srcs = glob(['**']),",
        "    visibility = ['//tools/allowlists:__pkg__'],",
        ")");
    scratch.file(
        "transition/transition.bzl",
        "def _silly_transition_impl(settings, attr):",
        "    version = str(settings['//command_line_option:ios_minimum_os'])",
        "    next = version + '.1'",
        "    return {'//command_line_option:ios_minimum_os': next}",
        "silly_transition = transition(",
        "    implementation = _silly_transition_impl,",
        "    inputs = ['//command_line_option:ios_minimum_os'],",
        "    outputs = ['//command_line_option:ios_minimum_os'],",
        ")",
        "def _my_rule_impl(ctx):",
        "    return []",
        "my_rule = rule(",
        "    attrs = {",
        "        '_allowlist_function_transition': attr.label(",
        "            default = '//tools/allowlists/function_transition_allowlist',",
        "        ),",
        "    },",
        "    cfg = silly_transition,",
        "    implementation = _my_rule_impl,",
        ")");
    scratch.file(
        "transition/BUILD",
        "load('//transition:transition.bzl', 'my_rule')",
        "my_rule(name = 'xxx')");

    useConfiguration("--ios_minimum_os=10.0");
    AnalysisResult result = update("//transition:xxx");
    BuildConfigurationValue configuration =
        Iterables.getOnlyElement(result.getTopLevelTargetsWithConfigs()).getConfiguration();
    AppleCommandLineOptions appleOptions =
        configuration.getOptions().get(AppleCommandLineOptions.class);
    assertThat(appleOptions.iosMinimumOs).isNotNull();
    DottedVersion version = DottedVersion.maybeUnwrap(appleOptions.iosMinimumOs);
    assertThat(version.toString()).isEqualTo("10.0.1");
  }
}