Introduce multiple dagger components and modules

This started off as a quick way to adding dagger to
:dribbble but then got a little out of hand due to dependencies
into :core and :app, especially within DataManager.

Also there are still issues with application wide singletons.

core/src/main/java/io/plaidapp/core/dagger/DataManagerComponent.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2018 Google, 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 io.plaidapp.core.dagger
+
+import dagger.Component
+
+@Component(modules = [DataManagerModule::class])
+interface DataManagerComponent

core/src/main/java/io/plaidapp/core/dagger/DribbbleDataModule.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2018 Google, 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 io.plaidapp.core.dagger
+
+import dagger.Module
+import dagger.Provides
+import io.plaidapp.core.dribbble.data.search.DribbbleSearchService
+import retrofit2.Retrofit
+
+@Module(includes = [DribbbleRetrofitModule::class])
+class DribbbleDataModule {
+
+    @Provides fun provideDribbbleSearchService(retrofit: Retrofit): DribbbleSearchService =
+        retrofit.create(DribbbleSearchService::class.java)
+}

core/src/main/java/io/plaidapp/core/dagger/DribbbleRetrofitModule.kt

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+/*
+ * Copyright 2018 Google, 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 io.plaidapp.core.dagger
+
+import com.jakewharton.retrofit2.adapter.kotlin.coroutines.experimental.CoroutineCallAdapterFactory
+import dagger.Module
+import dagger.Provides
+import io.plaidapp.core.dribbble.data.search.DribbbleSearchConverter
+import io.plaidapp.core.dribbble.data.search.DribbbleSearchService
+import io.plaidapp.core.loggingInterceptor
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+
+/**
+ * Module to set up retrofit.
+ */
+@Module
+class DribbbleRetrofitModule {
+
+    @Provides fun provideOkHttpClient(): OkHttpClient =
+        OkHttpClient.Builder().addInterceptor(loggingInterceptor).build()
+
+    @Provides fun provideRetrofitInterface(client: OkHttpClient): Retrofit =
+        Retrofit.Builder()
+            .baseUrl(DribbbleSearchService.ENDPOINT)
+            .addConverterFactory(DribbbleSearchConverter.Factory())
+            .addCallAdapterFactory(CoroutineCallAdapterFactory())
+            .client(client)
+            .build()
+}

core/src/main/java/io/plaidapp/core/dagger/DribbleSearchServiceProvider.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2018 Google, 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 io.plaidapp.core.dagger
+
+import dagger.Module
+import dagger.Provides
+import io.plaidapp.core.dribbble.data.search.DribbbleSearchService
+import io.plaidapp.core.dribbble.data.search.SearchRemoteDataSource
+
+@Module(includes = [DribbbleDataModule::class])
+class DribbleSearchServiceProvider {
+
+    @Provides fun provideDribbbleSearchService(dribbbleSearchService: DribbbleSearchService) =
+        SearchRemoteDataSource.getInstance(dribbbleSearchService)
+}

core/src/main/java/io/plaidapp/core/dagger/ShotsRepositoryModule.kt

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2018 Google, 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 io.plaidapp.core.dagger
+
+import dagger.Module
+import dagger.Provides
+import io.plaidapp.core.data.CoroutinesContextProvider
+import io.plaidapp.core.dribbble.data.ShotsRepository
+import io.plaidapp.core.dribbble.data.search.SearchRemoteDataSource
+
+/**
+ * Provide [ShotsRepository].
+ *
+ * TODO: make this an app wide singleton.
+ */
+@Module(includes = [CoroutinesContextProviderModule::class, DribbleSearchServiceProvider::class])
+class ShotsRepositoryModule {
+
+    @Provides fun provideShotsRepository(
+        remoteDataSource: SearchRemoteDataSource,
+        contextProvider: CoroutinesContextProvider
+    ) = ShotsRepository.getInstance(remoteDataSource, contextProvider)
+}