android: add Hilt module for LobstersApi

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

android/build.gradle.kts

@@ -2,15 +2,20 @@ plugins {
   id("org.jetbrains.compose") version "0.4.0"
   id("com.android.application")
   kotlin("android")
+  kotlin("kapt")
+  id("dagger.hilt.android.plugin")
 }
 
 dependencies {
+  kapt(libs.dagger.hilt.compiler)
   implementation(projects.api)
   implementation(projects.common)
   implementation(libs.androidx.activity.compose)
   implementation(libs.androidx.appcompat)
   implementation(libs.androidx.paging.compose)
+  implementation(libs.dagger.hilt.android)
   implementation(libs.retrofit.moshiConverter)
+  implementation(libs.moshix.metadatareflect)
 }
 
 android {

android/src/main/kotlin/dev/msfjarvis/claw/android/injection/ApiModule.kt

@@ -0,0 +1,51 @@
+package dev.msfjarvis.claw.android.injection
+
+import android.util.Log
+import com.squareup.moshi.Moshi
+import dagger.Lazy
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import dev.msfjarvis.claw.api.LobstersApi
+import okhttp3.OkHttpClient
+import retrofit2.Retrofit
+import retrofit2.converter.moshi.MoshiConverterFactory
+import retrofit2.create
+
+@Module
+@InstallIn(SingletonComponent::class)
+object ApiModule {
+
+  @Provides
+  fun provideClient(): OkHttpClient {
+    return OkHttpClient.Builder()
+      .addNetworkInterceptor { chain ->
+        val request = chain.request()
+        Log.d("LobstersApi", "${request.method()}: ${request.url()}")
+        chain.proceed(request)
+      }
+      .build()
+  }
+
+  /**
+   * Using [Lazy] here is a trick I picked up from Zac Sweers, which he explained in more detail
+   * here: https://www.zacsweers.dev/dagger-party-tricks-deferred-okhttp-init/
+   */
+  @Provides
+  fun provideRetrofit(
+    client: Lazy<OkHttpClient>,
+    moshi: Lazy<Moshi>,
+  ): Retrofit {
+    return Retrofit.Builder()
+      .client(client.get())
+      .baseUrl("https://lobste.rs/")
+      .addConverterFactory(MoshiConverterFactory.create(moshi.get()))
+      .build()
+  }
+
+  @Provides
+  fun provideApi(retrofit: Retrofit): LobstersApi {
+    return retrofit.create()
+  }
+}

android/src/main/kotlin/dev/msfjarvis/claw/android/injection/MoshiModule.kt

@@ -0,0 +1,19 @@
+package dev.msfjarvis.claw.android.injection
+
+import com.squareup.moshi.Moshi
+import dagger.Module
+import dagger.Provides
+import dagger.Reusable
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import dev.zacsweers.moshix.reflect.MetadataKotlinJsonAdapterFactory
+
+@Module
+@InstallIn(SingletonComponent::class)
+object MoshiModule {
+  @Provides
+  @Reusable
+  fun provideMoshi(): Moshi {
+    return Moshi.Builder().add(MetadataKotlinJsonAdapterFactory()).build()
+  }
+}

build.gradle.kts

@@ -8,6 +8,7 @@ buildscript {
     classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.10")
     classpath("com.android.tools.build:gradle:4.1.1")
     classpath("com.diffplug.spotless:spotless-plugin-gradle:5.12.5")
+    classpath("com.google.dagger:hilt-android-gradle-plugin:2.36")
   }
 }
 

gradle/libs.versions.toml

@@ -1,5 +1,6 @@
 [versions]
 coroutines = "1.5.0"
+hilt = "2.36"
 moshix = "0.11.2"
 retrofit = "2.9.0"
 sqldelight = "1.5.0"
@@ -15,6 +16,10 @@ androidx-appcompat = "androidx.appcompat:appcompat:1.4.0-alpha02"
 androidx-browser = "androidx.browser:browser:1.3.0"
 androidx-paging-compose = "androidx.paging:paging-compose:1.0.0-alpha10"
 
+dagger-hilt-android = { module = "com.google.dagger:hilt-android", version.ref = "hilt" }
+dagger-hilt-compiler = { module = "com.google.dagger:hilt-compiler", version.ref = "hilt" }
+dagger-hilt-core = { module = "com.google.dagger:hilt-core", version.ref = "hilt" }
+
 moshi-lib = "com.squareup.moshi:moshi:1.12.0"
 moshix-ksp = { module = "dev.zacsweers.moshix:moshi-ksp", version.ref = "moshix" }
 moshix-metadatareflect = { module = "dev.zacsweers.moshix:moshi-metadata-reflect", version.ref = "moshix" }