// Copyright 2015 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.analysis.mock;

import com.google.common.base.Functions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.ConfigurationCollectionFactory;
import com.google.devtools.build.lib.analysis.ConfiguredRuleClassProvider;
import com.google.devtools.build.lib.analysis.config.ConfigurationFactory;
import com.google.devtools.build.lib.analysis.config.ConfigurationFragmentFactory;
import com.google.devtools.build.lib.analysis.util.AnalysisMock;
import com.google.devtools.build.lib.bazel.rules.BazelConfiguration;
import com.google.devtools.build.lib.bazel.rules.BazelConfigurationCollection;
import com.google.devtools.build.lib.bazel.rules.python.BazelPythonConfiguration;
import com.google.devtools.build.lib.packages.util.BazelMockCcSupport;
import com.google.devtools.build.lib.packages.util.MockCcSupport;
import com.google.devtools.build.lib.packages.util.MockToolsConfig;
import com.google.devtools.build.lib.rules.android.AndroidConfiguration;
import com.google.devtools.build.lib.rules.apple.AppleConfiguration;
import com.google.devtools.build.lib.rules.cpp.CppConfigurationLoader;
import com.google.devtools.build.lib.rules.cpp.FdoSupportFunction;
import com.google.devtools.build.lib.rules.cpp.FdoSupportValue;
import com.google.devtools.build.lib.rules.java.JavaConfigurationLoader;
import com.google.devtools.build.lib.rules.java.JvmConfigurationLoader;
import com.google.devtools.build.lib.rules.objc.J2ObjcConfiguration;
import com.google.devtools.build.lib.rules.objc.ObjcConfigurationLoader;
import com.google.devtools.build.lib.rules.proto.ProtoConfiguration;
import com.google.devtools.build.lib.rules.python.PythonConfigurationLoader;
import com.google.devtools.build.lib.testutil.BuildRuleBuilder;
import com.google.devtools.build.lib.testutil.BuildRuleWithDefaultsBuilder;
import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.skyframe.SkyFunction;
import com.google.devtools.build.skyframe.SkyFunctionName;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

public final class BazelAnalysisMock extends AnalysisMock {
  public static final AnalysisMock INSTANCE = new BazelAnalysisMock();

  private BazelAnalysisMock() {
  }

  @Override
  public void setupMockClient(MockToolsConfig config) throws IOException {
    String bazelToolWorkspace = config.getPath("/bazel_tools_workspace").getPathString();
    ArrayList<String> workspaceContents =
        new ArrayList<>(
            ImmutableList.of(
                "local_repository(name = 'bazel_tools', path = '" + bazelToolWorkspace + "')",
                "local_repository(name = 'local_config_xcode', path = '/local_config_xcode')",
                "bind(",
                "  name = 'objc_proto_lib',",
                "  actual = '//objcproto:ProtocolBuffers_lib',",
                ")",
                "bind(",
                "  name = 'objc_protobuf_lib',",
                "  actual = '//objcproto:protobuf_lib',",
                ")",
                "bind(name = 'android/sdk', actual='@bazel_tools//tools/android:sdk')",
                "bind(name = 'tools/python', actual='//tools/python')"));

    config.create(
        "/local_config_xcode/BUILD", "xcode_config(name = 'host_xcodes')");
    config.overwrite("WORKSPACE", workspaceContents.toArray(new String[workspaceContents.size()]));
    config.create("/bazel_tools_workspace/WORKSPACE", "workspace(name = 'bazel_tools')");
    config.create(
        "/bazel_tools_workspace/tools/jdk/BUILD",
        "package(default_visibility=['//visibility:public'])",
        "java_toolchain(",
        "  name = 'toolchain',",
        "  encoding = 'UTF-8',",
        "  source_version = '8',",
        "  target_version = '8',",
        "  bootclasspath = [':bootclasspath'],",
        "  extclasspath = [':extclasspath'],",
        "  javac = [':langtools'],",
        "  javabuilder = ['JavaBuilder_deploy.jar'],",
        "  header_compiler = ['turbine_deploy.jar'],",
        "  singlejar = ['SingleJar_deploy.jar'],",
        "  genclass = ['GenClass_deploy.jar'],",
        "  ijar = ['ijar'],",
        ")",
        "filegroup(name = 'jdk-null')",
        "filegroup(name = 'jdk-default', srcs = [':java'], path = 'jdk/jre')",
        "filegroup(name = 'jdk', srcs = [':jdk-default', ':jdk-null'])",
        "filegroup(name='langtools', srcs=['jdk/lib/tools.jar'])",
        "filegroup(name='bootclasspath', srcs=['jdk/jre/lib/rt.jar'])",
        "filegroup(name='extdir', srcs=glob(['jdk/jre/lib/ext/*']))",
        // "dummy" is needed so that RedirectChaser stops here
        "filegroup(name='java', srcs = ['jdk/jre/bin/java', 'dummy'])",
        "exports_files(['JavaBuilder_deploy.jar','SingleJar_deploy.jar','TestRunner_deploy.jar',",
        "               'JavaBuilderCanary_deploy.jar', 'ijar', 'GenClass_deploy.jar',",
        "               'turbine_deploy.jar'])");


    ImmutableList<String> androidBuildContents = createAndroidBuildContents();
    config.create(
        "/bazel_tools_workspace/tools/android/BUILD",
        androidBuildContents.toArray(new String[androidBuildContents.size()]));
    config.create(
        "/bazel_tools_workspace/tools/android/android_sdk_repository_template.bzl",
        "def create_android_sdk_rules("
            + "name, build_tools_version, build_tools_directory, api_level):",
        "    pass");

    config.create(
        "/bazel_tools_workspace/tools/genrule/BUILD", "exports_files(['genrule-setup.sh'])");
    config.create(
        "/bazel_tools_workspace/third_party/java/jarjar/BUILD",
        "package(default_visibility=['//visibility:public'])",
        "licenses(['notice'])",
        "java_binary(name = 'jarjar_bin',",
        "            runtime_deps = [ ':jarjar_import' ],",
        "            main_class = 'com.tonicsystems.jarjar.Main')",
        "java_import(name = 'jarjar_import',",
        "            jars = [ 'jarjar.jar' ])");

    config.create("/bazel_tools_workspace/tools/test/BUILD",
        "filegroup(name = 'runtime')",
        "filegroup(name = 'coverage_support')",
        "filegroup(name = 'coverage_report_generator', srcs = ['coverage_report_generator.sh'])");

    config.create(
        "/bazel_tools_workspace/tools/python/BUILD",
        "package(default_visibility=['//visibility:public'])",
        "exports_files(['precompile.py'])",
        "sh_binary(name='2to3', srcs=['2to3.sh'])");

    config.create(
        "/bazel_tools_workspace/tools/zip/BUILD",
        "package(default_visibility=['//visibility:public'])",
        "exports_files(['precompile.py'])",
        "cc_binary(name='zipper', srcs=['zip_main.cc'])");
    ccSupport().setup(config);
  }

  private ImmutableList<String> createAndroidBuildContents() {
    ImmutableList.Builder<String> androidBuildContents = ImmutableList.builder();

    BuildRuleWithDefaultsBuilder ruleBuilder =
        new BuildRuleWithDefaultsBuilder("android_sdk", "sdk")
            .popuplateAttributes("", false);
    androidBuildContents.add(ruleBuilder.build());
    for (BuildRuleBuilder generatedRuleBuilder : ruleBuilder.getRulesToGenerate()) {
      androidBuildContents.add(generatedRuleBuilder.build());
    }

    androidBuildContents
        .add("sh_binary(name = 'aar_generator', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'desugar_java8', srcs = ['empty.sh'])")
        .add("filegroup(name = 'desugar_java8_extra_bootclasspath', srcs = ['fake.jar'])")
        .add("sh_binary(name = 'aar_native_libs_zip_creator', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'dexbuilder', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'dexmerger', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'manifest_merger', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'rclass_generator', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'resources_processor', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'resource_merger', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'resource_parser', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'resource_shrinker', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'resource_validator', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'rex_wrapper', srcs = ['empty.sh'])")
        .add("android_library(name = 'incremental_stub_application')")
        .add("android_library(name = 'incremental_split_stub_application')")
        .add("sh_binary(name = 'stubify_manifest', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'merge_dexzips', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'merge_manifests', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'build_split_manifest', srcs = ['empty.sh'])")
        .add("filegroup(name = 'debug_keystore', srcs = ['fake.file'])")
        .add("sh_binary(name = 'shuffle_jars', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'strip_resources', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'build_incremental_dexmanifest', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'incremental_install', srcs = ['empty.sh'])")
        .add("java_binary(name = 'JarFilter',")
        .add("          runtime_deps = [ ':JarFilter_import'],")
        .add("          main_class = 'com.google.devtools.build.android.ideinfo.JarFilter')")
        .add("java_import(name = 'JarFilter_import',")
        .add("          jars = [ 'jar_filter_deploy.jar' ])")
        .add("java_binary(name = 'PackageParser',")
        .add("          runtime_deps = [ ':PackageParser_import'],")
        .add("          main_class = 'com.google.devtools.build.android.ideinfo.PackageParser')")
        .add("java_import(name = 'PackageParser_import',")
        .add("          jars = [ 'package_parser_deploy.jar' ])")
        .add("java_binary(name = 'IdlClass',")
        .add("            runtime_deps = [ ':idlclass_import' ],")
        .add("            main_class = 'com.google.devtools.build.android.idlclass.IdlClass')")
        .add("sh_binary(name = 'zip_manifest_creator', srcs = ['empty.sh'])")
        .add("sh_binary(name = 'aar_embedded_jars_extractor', srcs = ['empty.sh'])")
        .add("java_import(name = 'idlclass_import',")
        .add("            jars = [ 'idlclass.jar' ])");

    return androidBuildContents.build();
  }

  @Override
  public void setupMockWorkspaceFiles(Path embeddedBinariesRoot) throws IOException {
    Path jdkWorkspacePath = embeddedBinariesRoot.getRelative("jdk.WORKSPACE");
    FileSystemUtils.createDirectoryAndParents(jdkWorkspacePath.getParentDirectory());
    FileSystemUtils.writeContentAsLatin1(jdkWorkspacePath, "");
  }

  @Override
  public ConfigurationFactory createConfigurationFactory() {
    return createConfigurationFactory(getDefaultConfigurationFactories());
  }

  @Override
  public ConfigurationFactory createConfigurationFactory(
      List<ConfigurationFragmentFactory> configurationFragmentFactories) {
    return new ConfigurationFactory(
        new BazelConfigurationCollection(),
        configurationFragmentFactories);
  }

  private static List<ConfigurationFragmentFactory> getDefaultConfigurationFactories() {
    return ImmutableList.<ConfigurationFragmentFactory>of(
        new BazelConfiguration.Loader(),
        new CppConfigurationLoader(Functions.<String>identity()),
        new PythonConfigurationLoader(),
        new BazelPythonConfiguration.Loader(),
        new JvmConfigurationLoader(),
        new JavaConfigurationLoader(),
        new ObjcConfigurationLoader(),
        new AppleConfiguration.Loader(),
        new J2ObjcConfiguration.Loader(),
        new ProtoConfiguration.Loader(),
        new AndroidConfiguration.Loader());
  }

  @Override
  public ConfigurationCollectionFactory createConfigurationCollectionFactory() {
    return new BazelConfigurationCollection();
  }

  @Override
  public ConfiguredRuleClassProvider createRuleClassProvider() {
    return TestRuleClassProvider.getRuleClassProvider();
  }

  @Override
  public Collection<String> getOptionOverrides() {
    return ImmutableList.of();
  }

  @Override
  public boolean isThisBazel() {
    return true;
  }

  @Override
  public MockCcSupport ccSupport() {
    return BazelMockCcSupport.INSTANCE;
  }

  @Override
  public ImmutableMap<SkyFunctionName, SkyFunction> getSkyFunctions() {
    ImmutableMap.Builder<SkyFunctionName, SkyFunction> skyFunctions = ImmutableMap.builder();
    skyFunctions.putAll(super.getSkyFunctions());
    skyFunctions.put(FdoSupportValue.SKYFUNCTION, new FdoSupportFunction());
    return skyFunctions.build();
  }
}
