Pull request for android Job - Pedro Henrique Freitas

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+
+.idea/

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: "androidx.navigation.safeargs.kotlin"
+apply plugin: 'kotlin-kapt'
+
+android {
+    compileSdkVersion 29
+
+    defaultConfig {
+        applicationId "com.challenge.nexaas"
+        minSdkVersion 21
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.3.0'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    //navigation component
+    implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+    implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+    //koin
+    implementation "org.koin:koin-android:$koin_version"
+    implementation "org.koin:koin-android-viewmodel:$koin_version"
+    // Retrofit
+    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
+    implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
+    //coroutines
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutine_version"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutine_version"
+    testImplementation "org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutine_version"
+    //room
+    implementation "androidx.room:room-runtime:$room_version"
+    kapt "androidx.room:room-compiler:$room_version"
+    implementation 'com.github.bumptech.glide:glide:4.11.0'
+    implementation 'com.google.android.material:material:1.1.0'
+    testImplementation "com.nhaarman.mockitokotlin2:mockito-kotlin:2.1.0"
+    testImplementation "androidx.arch.core:core-testing:$arch_testing_version"
+    testImplementation "com.google.truth:truth:$truth_version"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/challenge/nexaas/ExampleInstrumentedTest.kt

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+package com.challenge.nexaas
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.challenge.nexaas", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.challenge.nexaas">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:name=".NexaasApplication"
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/challenge/nexaas/AppDatabase.kt

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+package com.challenge.nexaas
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import com.challenge.nexaas.data.Product
+import com.challenge.nexaas.data.ProductDAO
+
+@Database(
+    version = 1,
+    entities = [Product::class],
+    exportSchema = false
+)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun productDao(): ProductDAO
+
+    companion object {
+        private const val DATABASE_NAME = "nexaas.db"
+
+        @Volatile
+        private var instance: AppDatabase? = null
+
+        fun getInstance(context: Context): AppDatabase {
+            return instance ?: synchronized(this) {
+                instance ?: buildDatabase(context).also { instance = it }
+            }
+        }
+
+        private fun buildDatabase(context: Context): AppDatabase {
+            return Room.databaseBuilder(context, AppDatabase::class.java, DATABASE_NAME)
+                .fallbackToDestructiveMigration()
+                .build()
+        }
+    }
+}

app/src/main/java/com/challenge/nexaas/MainActivity.kt

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+package com.challenge.nexaas
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.navigation.findNavController
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.setupWithNavController
+import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.content_main.*
+
+class MainActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        setSupportActionBar(toolbar)
+        configActionBar()
+    }
+
+    private fun configActionBar() {
+        val navController = findNavController(R.id.nav_host_fragment)
+        val appBarConfiguration = AppBarConfiguration(navController.graph)
+        toolbar.setupWithNavController(navController, appBarConfiguration)
+    }
+
+    override fun onSupportNavigateUp() =
+        NavHostFragment.findNavController(nav_host_fragment).navigateUp()
+}

app/src/main/java/com/challenge/nexaas/NexaasApplication.kt

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+package com.challenge.nexaas
+
+import android.app.Application
+import com.challenge.nexaas.di.apiModule
+import com.challenge.nexaas.di.daoModule
+import com.challenge.nexaas.di.repositoryModule
+import com.challenge.nexaas.di.viewModelModule
+import org.koin.android.ext.koin.androidContext
+import org.koin.core.context.startKoin
+
+class NexaasApplication : Application() {
+
+    override fun onCreate() {
+        super.onCreate()
+        startKoin {
+            androidContext(this@NexaasApplication)
+            modules(listOf(apiModule, daoModule, repositoryModule, viewModelModule))
+        }
+    }
+}

app/src/main/java/com/challenge/nexaas/data/Product.kt

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+package com.challenge.nexaas.data
+
+import android.os.Parcelable
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import com.google.gson.annotations.SerializedName
+import kotlinx.android.parcel.Parcelize
+
+@Entity
+@Parcelize
+data class Product(
+    @PrimaryKey
+    val name: String,
+    val description: String,
+    @SerializedName("image_url")
+    val imageUrl: String,
+    val price: Int,
+    val quantity: Int,
+    val shipping: Int,
+    val stock: Int,
+    val tax: Int
+) : Parcelable

app/src/main/java/com/challenge/nexaas/data/ProductDAO.kt

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+package com.challenge.nexaas.data
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+
+@Dao
+interface ProductDAO {
+
+    @Query("SELECT * FROM Product")
+    fun getAll(): List<Product>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun saveAll(products: List<Product>)
+
+}

app/src/main/java/com/challenge/nexaas/data/ProductRepository.kt

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+package com.challenge.nexaas.data
+
+interface ProductRepository : ProductService
+
+class ProductRepositoryImpl(private val service: ProductService, private val dao: ProductDAO) :
+    ProductRepository {
+    override suspend fun getProducts(): List<Product> {
+        return try {
+            val product = service.getProducts()
+            dao.saveAll(product)
+            dao.getAll()
+        } catch (e: Exception) {
+            dao.getAll()
+        }
+    }
+}

app/src/main/java/com/challenge/nexaas/data/ProductService.kt

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+package com.challenge.nexaas.data
+
+import retrofit2.http.GET
+
+interface ProductService {
+
+    @GET("data.json")
+    suspend fun getProducts(): List<Product>
+}

app/src/main/java/com/challenge/nexaas/di/ApiViewModule.kt

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+package com.challenge.nexaas.di
+
+import com.challenge.nexaas.data.ProductService
+import okhttp3.OkHttpClient
+import org.koin.dsl.module
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+
+val apiModule = module {
+    single { provideDefaultOkhttpClient() }
+    single { provideRetrofit(get()) }
+}
+
+private const val URL =
+    "https://raw.githubusercontent.com/myfreecomm/desafio-mobile-android/master/api/"
+
+fun provideDefaultOkhttpClient(): OkHttpClient {
+    return OkHttpClient.Builder()
+        .addInterceptor { chain ->
+            val request = chain.request()
+            chain.proceed(request)
+        }
+        .build()
+}
+
+fun provideRetrofit(client: OkHttpClient): ProductService {
+    return Retrofit.Builder()
+        .baseUrl(URL)
+        .client(client)
+        .addConverterFactory(GsonConverterFactory.create())
+        .build()
+        .create(ProductService::class.java)
+}

app/src/main/java/com/challenge/nexaas/di/DaoModule.kt

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+package com.challenge.nexaas.di
+
+import com.challenge.nexaas.AppDatabase
+import org.koin.dsl.module
+
+val daoModule = module {
+    single { AppDatabase.getInstance(get()) }
+    single { get<AppDatabase>().productDao() }
+}

app/src/main/java/com/challenge/nexaas/di/RepositoryModule.kt

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+package com.challenge.nexaas.di
+
+import com.challenge.nexaas.data.ProductRepository
+import com.challenge.nexaas.data.ProductRepositoryImpl
+import org.koin.dsl.module
+
+val repositoryModule = module {
+    single<ProductRepository> { ProductRepositoryImpl(get(), get()) }
+}

app/src/main/java/com/challenge/nexaas/di/ViewModelModule.kt

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+package com.challenge.nexaas.di
+
+import com.challenge.nexaas.ui.ProdutcListViewModel
+import org.koin.android.viewmodel.dsl.viewModel
+import org.koin.dsl.module
+
+val viewModelModule = module {
+    viewModel { ProdutcListViewModel(get()) }
+}