// Copyright 2018 Google LLC
//
// 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.

// A map of library to the dependencies that need to be added for it.
def firebaseDependenciesMap = [
  'app' : ['com.google.firebase:firebase-analytics:16.5.0'],
  'admob' : ['com.google.firebase:firebase-ads:17.2.1',
             'com.google.android.gms:play-services-measurement-sdk-api:16.5.0'],
  'analytics' : ['com.google.firebase:firebase-analytics:16.5.0'],
  'auth' : ['com.google.firebase:firebase-auth:17.0.0'],
  'database' : ['com.google.firebase:firebase-database:17.0.0'],
  'dynamic_links' : ['com.google.firebase:firebase-invites:17.0.0'],
  'functions' : ['com.google.firebase:firebase-functions:17.0.0'],
  'instance_id' : ['com.google.firebase:firebase-iid:18.0.0'],
  'messaging' : ['com.google.firebase.messaging.cpp:firebase_messaging_cpp@aar',
                 'com.google.firebase:firebase-messaging:18.0.0'],
  'remote_config' : ['com.google.firebase:firebase-config:17.0.0'],
  'storage' : ['com.google.firebase:firebase-storage:17.0.0']
]

// Handles adding the Firebase C++ dependencies as properties.
class Dependencies {
  HashSet<String> libSet = new HashSet<String>()

  def getApp() {
    libSet.add('app')
  }
  def getAdmob() {
    libSet.add('admob')
  }
  def getAnalytics() {
    libSet.add('analytics')
  }
  def getAuth() {
    libSet.add('auth')
  }
  def getDatabase() {
    libSet.add('database')
  }
  def getDynamicLinks() {
    libSet.add('dynamic_links')
  }
  def getFunctions() {
    libSet.add('functions')
  }
  def getInstanceId() {
    libSet.add('instance_id')
  }
  def getInvites() {
    libSet.add('invites')
  }
  def getMessaging() {
    libSet.add('messaging')
  }
  def getPerformance() {
    libSet.add('performance')
  }
  def getRemoteConfig() {
    libSet.add('remote_config')
  }
  def getStorage() {
    libSet.add('storage')
  }
}

// Extension to handle which Firebase C++ dependencies are being added to the
// gradle project.
// They are added via: firebaseCpp.dependencies "admob", "analytics", ...
class FirebaseCppExtension {
  Dependencies dependencies = new Dependencies()

  void dependencies(Closure c) {
    ConfigureUtil.configure(c, dependencies)
  }
  void dependencies(Action<? super Dependencies> action) {
    action.execute(dependencies)
  }
}

project.extensions.create('firebaseCpp', FirebaseCppExtension)

// Adds the proguard file for the given library.
def addProguard(String lib) {
  project.android.buildTypes.release.proguardFile file(
    "${gradle.firebase_cpp_sdk_dir}/libs/android/${lib}.pro")
}

project.afterEvaluate {
  if (!firebaseCpp.dependencies.libSet.isEmpty()) {
    // App is required, so add it if it wasn't included.
    if (!firebaseCpp.dependencies.libSet.contains('app')) {
      firebaseCpp.dependencies.libSet.add('app')
    }

    for (String lib : firebaseCpp.dependencies.libSet) {
      // Messaging includes an aar, which to be depended on properly requires
      // the folder containing it to be added this way.
      if (lib == 'messaging') {
        repositories {
          flatDir {
            dirs gradle.firebase_cpp_sdk_dir + "/libs/android"
          }
        }
      }

      // Add the proguard file and dependencies for the library
      addProguard(lib)
      for (String dep : firebaseDependenciesMap.get(lib)) {
        project.dependencies {
          implementation "$dep"
        }
      }
    }
  }
}