// 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.bazel.rules.android;

import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.actions.SpawnAction;
import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;
import com.google.devtools.build.lib.rules.android.AndroidCommon;
import com.google.devtools.build.lib.rules.android.AndroidIdeInfoProvider;
import com.google.devtools.build.lib.rules.android.AndroidSemantics;
import com.google.devtools.build.lib.rules.android.ApplicationManifest;
import com.google.devtools.build.lib.rules.android.ResourceApk;
import com.google.devtools.build.lib.rules.java.JavaCommon;
import com.google.devtools.build.lib.rules.java.JavaCompilationArtifacts;
import com.google.devtools.build.lib.rules.java.JavaSemantics;
import com.google.devtools.build.lib.rules.java.JavaTargetAttributes.Builder;

/**
 * Implementation of Bazel-specific behavior in Android rules.
 */
public class BazelAndroidSemantics implements AndroidSemantics {
  public static final BazelAndroidSemantics INSTANCE = new BazelAndroidSemantics();

  private BazelAndroidSemantics() {
  }

  @Override
  public void addNonLocalResources(
      RuleContext ruleContext,
      ResourceApk resourceApk,
      AndroidIdeInfoProvider.Builder ideInfoProviderBuilder) {}

  @Override
  public void addTransitiveInfoProviders(
      RuleConfiguredTargetBuilder builder,
      RuleContext ruleContext,
      JavaCommon javaCommon,
      AndroidCommon androidCommon,
      Artifact jarWithAllClasses) {}

  @Override
  public ApplicationManifest getManifestForRule(RuleContext ruleContext) throws RuleErrorException {
    ApplicationManifest result = ApplicationManifest.fromRule(ruleContext);
    if (!result.getManifest().getExecPath().getBaseName().equals("AndroidManifest.xml")) {
      ruleContext.attributeError("manifest", "The manifest must be called 'AndroidManifest.xml'");
      throw new RuleErrorException();
    }

    return result;
  }

  @Override
  public String getNativeDepsFileName() {
    return "nativedeps";
  }

  @Override
  public ImmutableList<String> getJavacArguments(RuleContext ruleContext) {
    return ImmutableList.of(
        "-source", "7",
        "-target", "7");
  }

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

  @Override
  public void addMainDexListActionArguments(RuleContext ruleContext, SpawnAction.Builder builder) {
  }

  @Override
  public Artifact getApkDebugSigningKey(RuleContext ruleContext) {
    return ruleContext.getPrerequisiteArtifact("$debug_keystore", Mode.HOST);
  }

  @Override
  public void addCoverageSupport(RuleContext ruleContext, AndroidCommon common,
      JavaSemantics javaSemantics, boolean forAndroidTest, Builder attributes,
      JavaCompilationArtifacts.Builder artifactsBuilder) {
  }

  @Override
  public ImmutableList<String> getAttributesWithJavaRuntimeDeps(RuleContext ruleContext) {
    switch (ruleContext.getRule().getRuleClass()) {
      case "android_binary":
        return ImmutableList.of("deps");
      default:
        throw new UnsupportedOperationException("Only supported for top-level binaries");
    }
  }
}
