Решение к домашней работе Hilt

app/build.gradle

@@ -1,20 +1,38 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
+    id 'com.google.devtools.ksp'
+    id 'com.google.dagger.hilt.android'
+    id 'dagger.hilt.android.plugin'
+    id 'com.google.android.libraries.mapsplatform.secrets-gradle-plugin'
 }
 
 android {
     namespace 'ru.otus.basicarchitecture'
-    compileSdk 35
+    compileSdk 36
 
     defaultConfig {
         applicationId "ru.otus.basicarchitecture"
         minSdk 24
+        //noinspection OldTargetApi
         targetSdk 35
         versionCode 1
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        // Получаем ключи из local.properties через secrets-gradle-plugin
+        buildConfigField "String", "DADATA_API_KEY", "\"${project.findProperty("DADATA_API_KEY") ?: ""}\""
+        buildConfigField "String", "DADATA_SECRET_KEY", "\"${project.findProperty("DADATA_SECRET_KEY") ?: ""}\""
+    }
+
+    buildFeatures {
+        viewBinding = true
+        buildConfig = true
+    }
+
+    testOptions {
+        unitTests.returnDefaultValues = true
     }
 
     buildTypes {
@@ -38,7 +56,29 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.7.0'
     implementation 'com.google.android.material:material:1.12.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.2.0'
+    // Lifecycle
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.8.7'
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
+    // Navigation
+    implementation 'androidx.navigation:navigation-fragment:2.8.5'
+    implementation 'androidx.navigation:navigation-ui:2.8.5'
+    // Hilt
+    implementation "com.google.dagger:hilt-android:2.57.2"
+    ksp "com.google.dagger:hilt-compiler:2.57.2"
+    // Retrofit
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
+    implementation 'com.squareup.okhttp3:okhttp:4.12.0'
+    implementation 'com.squareup.okhttp3:logging-interceptor:4.12.0'
+    // Корутины
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3'
+    // Тестирование
     testImplementation 'junit:junit:4.13.2'
+    testImplementation 'io.mockk:mockk:1.13.8'
+    testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.7.3'
+    testImplementation 'app.cash.turbine:turbine:1.0.0'
+    testImplementation 'androidx.arch.core:core-testing:2.2.0'
     androidTestImplementation 'androidx.test.ext:junit:1.2.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.6.1'
 }

app/src/main/AndroidManifest.xml

@@ -2,7 +2,11 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
     <application
+        android:name=".MyApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"

app/src/main/java/ru/otus/basicarchitecture/MainActivity.kt

@@ -2,7 +2,9 @@ package ru.otus.basicarchitecture
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import dagger.hilt.android.AndroidEntryPoint
 
+@AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)

app/src/main/java/ru/otus/basicarchitecture/MyApplication.kt

@@ -0,0 +1,7 @@
+package ru.otus.basicarchitecture
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class MyApplication : Application()

app/src/main/java/ru/otus/basicarchitecture/WizardCache.kt

@@ -0,0 +1,18 @@
+package ru.otus.basicarchitecture
+
+import dagger.hilt.android.scopes.ActivityRetainedScoped
+import javax.inject.Inject
+
+/**
+ * Кеш для хранения данных мастера регистрации
+ * Использует ActivityRetainedScoped - данные сохраняются при повороте экрана,
+ * но очищаются при уничтожении Activity
+ */
+@ActivityRetainedScoped
+class WizardCache @Inject constructor() {
+    var firstName: String = ""
+    var lastName: String = ""
+    var birthDate: String = ""
+    var address: String = ""
+    var interests: List<String> = emptyList()
+}

app/src/main/java/ru/otus/basicarchitecture/di/NetworkModule.kt

@@ -0,0 +1,62 @@
+package ru.otus.basicarchitecture.di
+
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import ru.otus.basicarchitecture.BuildConfig
+import ru.otus.basicarchitecture.network.dadata.DadataApi
+import ru.otus.basicarchitecture.network.dadata.DadataAuthInterceptor
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object NetworkModule {
+
+    // Базовый URL для API Дадата
+    private const val DADATA_BASE_URL = "https://suggestions.dadata.ru/"
+
+    @Provides
+    @Singleton
+    fun provideDadataAuthInterceptor(): DadataAuthInterceptor {
+        // Получаем ключи из BuildConfig, которые были сгенерированы из local.properties
+        return DadataAuthInterceptor(
+            apiKey = BuildConfig.DADATA_API_KEY,
+            secretKey = BuildConfig.DADATA_SECRET_KEY
+        )
+    }
+
+    @Provides
+    @Singleton
+    fun provideOkHttpClient(authInterceptor: DadataAuthInterceptor): OkHttpClient {
+        val loggingInterceptor = HttpLoggingInterceptor().apply {
+            level = HttpLoggingInterceptor.Level.BODY
+        }
+        return OkHttpClient.Builder()
+            .addInterceptor(authInterceptor) // Добавляем интерцептор аутентификации перед логированием
+            .addInterceptor(loggingInterceptor)
+            .build()
+    }
+
+    @Provides
+    @Singleton
+    fun provideRetrofit(okHttpClient: OkHttpClient): Retrofit {
+        return Retrofit.Builder()
+            .baseUrl(DADATA_BASE_URL)
+            .client(okHttpClient)
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+    }
+
+    // API интерфейс для работы с Дадата
+    @Provides
+    @Singleton
+    fun provideDadataApi(retrofit: Retrofit): DadataApi {
+        return retrofit.create(DadataApi::class.java)
+    }
+}
+

app/src/main/java/ru/otus/basicarchitecture/network/dadata/DadataApi.kt

@@ -0,0 +1,14 @@
+package ru.otus.basicarchitecture.network.dadata
+
+import retrofit2.http.Body
+import retrofit2.http.POST
+
+/**
+ * Интерфейс для работы с API Дадата
+ * Используется для получения подсказок адресов по введенному тексту
+ */
+interface DadataApi {
+    @POST("suggestions/api/4_1/rs/suggest/address")
+    suspend fun getAddressSuggestions(@Body request: DadataRequest): DadataResponse
+}
+

app/src/main/java/ru/otus/basicarchitecture/network/dadata/DadataAuthInterceptor.kt

@@ -0,0 +1,30 @@
+package ru.otus.basicarchitecture.network.dadata
+
+import okhttp3.Interceptor
+import okhttp3.Response
+
+/**
+ * Интерцептор для добавления заголовков аутентификации к запросам API Дадата
+ * Добавляет Authorization и X-Secret заголовки
+ */
+class DadataAuthInterceptor(
+    private val apiKey: String,
+    private val secretKey: String
+) : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val originalRequest = chain.request()
+
+        // Добавляем заголовки аутентификации
+        val authenticatedRequest = originalRequest.newBuilder()
+            .header("Authorization", "Token $apiKey")
+            .header("Content-Type", "application/json")
+            .header("Accept", "application/json")
+            .header("X-Secret", secretKey)
+            .build()
+
+        return chain.proceed(authenticatedRequest)
+    }
+}
+
+

app/src/main/java/ru/otus/basicarchitecture/network/dadata/DadataRequest.kt

@@ -0,0 +1,8 @@
+package ru.otus.basicarchitecture.network.dadata
+
+// Модель запроса к API Дадата
+data class DadataRequest(
+    val query: String,
+    val count: Int = 10
+)
+

app/src/main/java/ru/otus/basicarchitecture/network/dadata/DadataResponse.kt

@@ -0,0 +1,13 @@
+package ru.otus.basicarchitecture.network.dadata
+
+// Модель ответа от API Дадата
+data class DadataResponse(
+    val suggestions: List<Suggestion>
+)
+
+// Модель подсказки адреса
+data class Suggestion(
+    val value: String,
+    val unrestricted_value: String
+)
+