Merge pull request #4 from hakodeveloper/feature/userlist

Userlist Implementation

app/build.gradle

@@ -1,4 +1,4 @@
-apply from: 'versions.gradle'
+apply from: '../versions.gradle'
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
@@ -15,6 +15,9 @@ android {
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+        buildConfigField "String", "DB_NAME", '"friendlists.db"'
+        buildConfigField "String", "BASE_ENDPOINT", '"https://jsonplaceholder.typicode.com/"'
     }
 
     buildTypes {
@@ -45,4 +48,5 @@ android {
 
 dependencies {
     implementation project(":base")
+    implementation project(":userlist")
 }

app/src/main/AndroidManifest.xml

@@ -1,11 +1,28 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.hako.friendlists">
 
+    <uses-permission android:name="android.permission.INTERNET"/>
+
     <application
+        android:name=".MainApplication"
         android:allowBackup="true"
+        android:fullBackupContent="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
+        android:supportsRtl="false"
-        android:theme="@style/AppTheme" />
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:name=".view.MainActivity"
+            android:screenOrientation="portrait">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
 </manifest>

app/src/main/java/com/hako/friendlists/MainApplication.kt

@@ -0,0 +1,34 @@
+package com.hako.friendlists
+
+import android.app.Application
+import com.hako.userlist.di.userlistModules
+import com.hako.friendlists.di.appModules
+import org.koin.android.ext.koin.androidContext
+import org.koin.core.context.startKoin
+import timber.log.Timber
+
+@Suppress("unused")
+class MainApplication : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        setupLogger()
+        setupDi()
+    }
+
+    private fun setupLogger() {
+        Timber.plant(Timber.DebugTree())
+    }
+
+    private fun setupDi() {
+        startKoin {
+            androidContext(this@MainApplication)
+
+            modules(
+                listOf(
+                    appModules,
+                    userlistModules
+                )
+            )
+        }
+    }
+}

app/src/main/java/com/hako/friendlists/di/AppModules.kt

@@ -0,0 +1,18 @@
+package com.hako.friendlists.di
+
+import androidx.room.Room
+import com.hako.base.domain.database.DatabaseClient
+import com.hako.base.domain.network.RemoteClient
+import com.hako.friendlists.BuildConfig
+import org.koin.dsl.module
+
+val appModules = module {
+    // Room database
+    single { Room.databaseBuilder(get(), DatabaseClient::class.java, BuildConfig.DB_NAME).build() }
+    factory { get<DatabaseClient>().userDao() }
+    factory { get<DatabaseClient>().albumDao() }
+    factory { get<DatabaseClient>().photoDao() }
+
+    // Retrofit
+    single { RemoteClient(BuildConfig.BASE_ENDPOINT) }
+}

app/src/main/java/com/hako/friendlists/view/MainActivity.kt

@@ -0,0 +1,22 @@
+package com.hako.friendlists.view
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.navigation.findNavController
+import com.hako.friendlists.R
+
+class MainActivity : AppCompatActivity() {
+
+    private val navController by lazy { findNavController(R.id.main_fragment_container) }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        setupNavigation()
+    }
+
+    private fun setupNavigation() {
+        navController.setGraph(R.navigation.main_navigation)
+    }
+
+}

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<fragment xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/main_fragment_container"
+    android:name="androidx.navigation.fragment.NavHostFragment"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:defaultNavHost="true"/>

app/src/main/res/navigation/main_navigation.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/main_navigation"
+    app:startDestination="@id/userlist_navigation">
+
+    <include app:graph="@navigation/userlist_navigation" />
+
+</navigation>

app/src/main/res/values/colors.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#008577</color>
+    <color name="colorPrimary">#37474F</color>
-    <color name="colorPrimaryDark">#00574B</color>
+    <color name="colorPrimaryDark">#324047</color>
-    <color name="colorAccent">#D81B60</color>
+    <color name="colorAccent">#CBCFD1</color>
+    <color name="colorRed">#D32F2F</color>
 </resources>

app/src/main/res/values/styles.xml

@@ -1,11 +1,10 @@
 <resources>
 
-    <!-- Base application theme. -->
     <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
+        <item name="android:windowBackground">@color/soft_background</item>
     </style>
 
 </resources>

app/versions.gradle

@@ -1,33 +0,0 @@
-ext.deps = [:]
-
-def versions = [:]
-versions.kotlin = "1.3.41"
-versions.gradle = "3.5.3"
-
-def deps = [:]
-
-def project = [:]
-project.kotlin = "org.jetbrains.kotlin:kotlin-gradle-plugin:$versions.kotlin"
-project.gradle = "com.android.tools.build:gradle:$versions.gradle"
-deps.project = project
-
-def build_versions = [:]
-build_versions.min_sdk = 21
-build_versions.target_sdk = 29
-build_versions.build_tools = "29.0.3"
-ext.build_versions = build_versions
-
-def kotlin = [:]
-kotlin.version = "$versions.kotlin"
-kotlin.std_lib = "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$versions.kotlin"
-deps.kotlin = kotlin
-
-ext.deps = deps
-
-def addRepos(RepositoryHandler handler) {
-    handler.google()
-    handler.jcenter()
-    handler.maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
-}
-
-ext.addRepos = this.&addRepos

base/build.gradle

@@ -37,6 +37,8 @@ dependencies {
     api deps.androidx.lifecycle_ext
     api deps.androidx.lifecycle_viewmodel
     api deps.androidx.recycler_view
+    api deps.androidx.navigation_fragment
+    api deps.androidx.navigation_ui
     api deps.retrofit.runtime
     api deps.retrofit.gson
     api deps.retrofit.rx
@@ -48,6 +50,7 @@ dependencies {
     api deps.rx.android
     api deps.okhttp_logging_interceptor
     api deps.timber
+    api deps.lottie
     //Testing
     api deps.testing.junit
     api deps.testing.koin

base/src/main/java/com/hako/base/domain/Either.kt

@@ -0,0 +1,33 @@
+package com.hako.base.domain
+
+sealed class Either<out L, out R> {
+
+    data class Left<out L>(val a: L) : Either<L, Nothing>()
+    data class Right<out R>(val b: R) : Either<Nothing, R>()
+
+    val isRight get() = this is Right<R>
+    val isLeft get() = this is Left<L>
+
+    fun <L> left(a: L) = Left(a)
+    fun <R> right(b: R) = Right(b)
+
+    fun either(fnL: (L) -> Any, fnR: (R) -> Any): Any =
+            when (this) {
+                is Left -> fnL(a)
+                is Right -> fnR(b)
+            }
+}
+
+fun <A, B, C> ((A) -> B).c(f: (B) -> C): (A) -> C = {
+    f(this(it))
+}
+
+fun <T, L, R> Either<L, R>.flatMap(fn: (R) -> Either<L, T>): Either<L, T> =
+        when (this) {
+            is Either.Left -> Either.Left(
+                a
+            )
+            is Either.Right -> fn(b)
+        }
+
+fun <T, L, R> Either<L, R>.map(fn: (R) -> (T)): Either<L, T> = this.flatMap(fn.c(::right))

base/src/main/java/com/hako/base/domain/UseCase.kt

@@ -0,0 +1,5 @@
+package com.hako.base.domain
+
+interface UseCase <T> {
+    fun execute(onSuccess: (List<T>) -> Unit, onError: (Throwable) -> Unit, onLoading: () -> Unit)
+}

base/src/main/java/com/hako/base/domain/database/DatabaseClient.kt

@@ -0,0 +1,17 @@
+package com.hako.base.domain.database
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import com.hako.base.domain.database.dao.AlbumDao
+import com.hako.base.domain.database.dao.PhotoDao
+import com.hako.base.domain.database.dao.UserDao
+import com.hako.base.domain.database.entities.AlbumEntity
+import com.hako.base.domain.database.entities.PhotoEntity
+import com.hako.base.domain.database.entities.UserEntity
+
+@Database(entities = [UserEntity::class, AlbumEntity::class, PhotoEntity::class], version = 1, exportSchema = false)
+abstract class DatabaseClient : RoomDatabase() {
+    abstract fun userDao(): UserDao
+    abstract fun albumDao(): AlbumDao
+    abstract fun photoDao(): PhotoDao
+}

base/src/main/java/com/hako/base/domain/database/dao/AlbumDao.kt

@@ -0,0 +1,27 @@
+package com.hako.base.domain.database.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.hako.base.domain.database.entities.AlbumEntity
+
+@Dao
+interface AlbumDao {
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun save(entity: AlbumEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun saveAll(entities: List<AlbumEntity>)
+
+    @get:Query("SELECT * FROM ${AlbumEntity.TABLE_NAME}")
+    val all: List<AlbumEntity>
+
+    @Query("SELECT COUNT(*) FROM ${AlbumEntity.TABLE_NAME}")
+    fun count(): Int
+
+    @Query("DELETE FROM ${AlbumEntity.TABLE_NAME}")
+    fun nukeDatabase()
+
+}

base/src/main/java/com/hako/base/domain/database/dao/PhotoDao.kt

@@ -0,0 +1,27 @@
+package com.hako.base.domain.database.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.hako.base.domain.database.entities.PhotoEntity
+
+@Dao
+interface PhotoDao {
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun save(entity: PhotoEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun saveAll(entities: List<PhotoEntity>)
+
+    @get:Query("SELECT * FROM ${PhotoEntity.TABLE_NAME}")
+    val all: List<PhotoEntity>
+
+    @Query("SELECT COUNT(*) FROM ${PhotoEntity.TABLE_NAME}")
+    fun count(): Int
+
+    @Query("DELETE FROM ${PhotoEntity.TABLE_NAME}")
+    fun nukeDatabase()
+
+}

base/src/main/java/com/hako/base/domain/database/dao/UserDao.kt

@@ -0,0 +1,30 @@
+package com.hako.base.domain.database.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.hako.base.domain.database.entities.UserEntity
+
+@Dao
+interface UserDao {
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun save(entity: UserEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun saveAll(entities: List<UserEntity>)
+
+    @get:Query("SELECT * FROM ${UserEntity.TABLE_NAME}")
+    val all: List<UserEntity>
+
+    @Query("SELECT * FROM ${UserEntity.TABLE_NAME}")
+    fun getAllUsers(): List<UserEntity>
+
+    @Query("SELECT COUNT(*) FROM ${UserEntity.TABLE_NAME}")
+    fun count(): Int
+
+    @Query("DELETE FROM ${UserEntity.TABLE_NAME}")
+    fun nukeDatabase()
+
+}

base/src/main/java/com/hako/base/domain/database/entities/Album.kt

@@ -0,0 +1,17 @@
+package com.hako.base.domain.database.entities
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+@Entity(tableName = AlbumEntity.TABLE_NAME, indices = [Index(value = ["id"], unique = true)])
+data class AlbumEntity(
+    @PrimaryKey
+    val id: Int,
+    val userId: Int,
+    val title: String
+) {
+    companion object {
+        const val TABLE_NAME = "albums"
+    }
+}

base/src/main/java/com/hako/base/domain/database/entities/Photos.kt

@@ -0,0 +1,19 @@
+package com.hako.base.domain.database.entities
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+@Entity(tableName = PhotoEntity.TABLE_NAME, indices = [Index(value = ["id"], unique = true)])
+data class PhotoEntity(
+    @PrimaryKey
+    val id: Int,
+    val albumId: Int,
+    val title: String,
+    val photoUrl: String,
+    val thumbnailUrl: String
+) {
+    companion object {
+        const val TABLE_NAME = "photos"
+    }
+}

base/src/main/java/com/hako/base/domain/database/entities/User.kt

@@ -0,0 +1,20 @@
+package com.hako.base.domain.database.entities
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+@Entity(tableName = UserEntity.TABLE_NAME, indices = [Index(value = ["id"], unique = true)])
+data class UserEntity(
+    @PrimaryKey
+    val id: Int,
+    val realName: String,
+    val userName: String,
+    val email: String,
+    val phone: String,
+    val website: String
+) {
+    companion object {
+        const val TABLE_NAME = "users"
+    }
+}

base/src/main/java/com/hako/base/domain/network/RemoteClient.kt

@@ -0,0 +1,35 @@
+package com.hako.base.domain.network
+
+import com.hako.base.BuildConfig
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
+import retrofit2.converter.gson.GsonConverterFactory
+import timber.log.Timber
+
+class RemoteClient(endpoint: String) {
+    private val logger = HttpLoggingInterceptor(object : HttpLoggingInterceptor.Logger {
+        override fun log(message: String) {
+            Timber.d(message)
+        }
+    }).setLevel(getLoggerLevel())
+
+    private val client = OkHttpClient.Builder()
+        .addInterceptor(logger)
+        .build()
+
+    private val retrofit: Retrofit = Retrofit.Builder()
+        .baseUrl(endpoint)
+        .addConverterFactory(GsonConverterFactory.create())
+        .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+        .client(client)
+        .build()
+
+    fun <T> getClient(api: Class<T>): T = retrofit.create(api)
+
+    private fun getLoggerLevel() = when (BuildConfig.DEBUG) {
+        true -> HttpLoggingInterceptor.Level.BASIC
+        false -> HttpLoggingInterceptor.Level.NONE
+    }
+}

base/src/main/java/com/hako/base/domain/network/RequestStatus.kt

@@ -0,0 +1,7 @@
+package com.hako.base.domain.network
+
+sealed class RequestStatus {
+    object Ready : RequestStatus()
+    object Loading : RequestStatus()
+    object Errored : RequestStatus()
+}

base/src/main/java/com/hako/base/extensions/ApplicationExtension.kt

@@ -0,0 +1,8 @@
+package com.hako.base.extensions
+
+import android.content.Context
+import android.widget.Toast
+
+fun Context.toast(message: String) {
+    Toast.makeText(this, message, Toast.LENGTH_SHORT).show()
+}

base/src/main/java/com/hako/base/extensions/ListExtensions.kt

@@ -0,0 +1,23 @@
+package com.hako.base.extensions
+
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+
+fun <T> RecyclerView.Adapter<*>.autoNotify(oldList: List<T>, newList: List<T>, compare: (T, T) -> Boolean) {
+    val diff = DiffUtil.calculateDiff(object : DiffUtil.Callback() {
+
+        override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
+            return compare(oldList[oldItemPosition], newList[newItemPosition])
+        }
+
+        override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
+            return oldList[oldItemPosition] == newList[newItemPosition]
+        }
+
+        override fun getOldListSize() = oldList.size
+
+        override fun getNewListSize() = newList.size
+    })
+
+    diff.dispatchUpdatesTo(this)
+}

base/src/main/java/com/hako/base/extensions/LiveDataExtensions.kt

@@ -0,0 +1,13 @@
+package com.hako.base.extensions
+
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+
+fun <T> LiveData<T>.observeNonNull(owner: LifecycleOwner, func: (T) -> Unit) {
+    observe(owner, Observer {
+        it?.let {
+            func(it)
+        }
+    })
+}

base/src/main/java/com/hako/base/extensions/NavigationExtensions.kt

@@ -0,0 +1,19 @@
+package com.hako.base.extensions
+
+import androidx.annotation.IdRes
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.NavHostFragment
+
+fun AppCompatActivity.findNavHostFragment(@IdRes id: Int) =
+    supportFragmentManager.findFragmentById(id) as NavHostFragment
+
+fun Fragment.findNavHostFragment(@IdRes id: Int) =
+    childFragmentManager.findFragmentById(id) as NavHostFragment
+
+fun Fragment.findNavController(@IdRes id: Int) =
+    androidx.navigation.Navigation.findNavController(view?.findViewById(id) ?: viewNotFound(id, this))
+
+private fun viewNotFound(@IdRes id: Int, fragment: Fragment): Nothing = throw IllegalStateException(
+    "View ID $id at '${fragment::class.java.simpleName}' not found."
+)

base/src/main/java/com/hako/base/extensions/ViewExtensions.kt

@@ -0,0 +1,39 @@
+package com.hako.base.extensions
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.LayoutRes
+
+fun View.enable() {
+    isEnabled = true
+}
+
+fun View.disable() {
+    isEnabled = false
+}
+
+fun View.visible() {
+    visibility = View.VISIBLE
+}
+
+fun View.invisible() {
+    visibility = View.INVISIBLE
+}
+
+fun View.transparent() {
+    alpha = 0f
+}
+
+fun View.opaque() {
+    alpha = 1f
+}
+
+fun View.gone() {
+    visibility = View.GONE
+}
+
+fun ViewGroup.inflate(@LayoutRes layout: Int, attachToRoot: Boolean = false): View =
+    LayoutInflater
+        .from(context)
+        .inflate(layout, this, attachToRoot)

base/src/main/java/com/hako/base/widgets/LikeButton.kt

@@ -0,0 +1,46 @@
+package com.hako.base.widgets
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.FrameLayout
+import com.hako.base.R
+import com.hako.base.extensions.inflate
+import kotlinx.android.synthetic.main.like_button.view.*
+
+private const val LIKE_MIN_FRAME = 0
+private const val LIKE_MAX_FRAME = 28
+private const val LIKE_ANIM_SPEED = 1f
+private const val DISLIKE_MIN_FRAME = 28
+private const val DISLIKE_MAX_FRAME = 70
+private const val DISLIKE_ANIM_SPEED = 2f
+
+class LikeButton @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : FrameLayout(context, attrs, defStyleAttr) {
+
+    init {
+        inflate(R.layout.like_button, true)
+    }
+
+    fun like() {
+        like_button_animation_view.frame = LIKE_MAX_FRAME
+    }
+
+    fun dislike() {
+        like_button_animation_view.frame = LIKE_MIN_FRAME
+    }
+
+    fun playLike() {
+        like_button_animation_view.setMinAndMaxFrame(LIKE_MIN_FRAME, LIKE_MAX_FRAME)
+        like_button_animation_view.speed = LIKE_ANIM_SPEED
+        like_button_animation_view.playAnimation()
+    }
+
+    fun playDislike() {
+        like_button_animation_view.setMinAndMaxFrame(DISLIKE_MIN_FRAME, DISLIKE_MAX_FRAME)
+        like_button_animation_view.speed = DISLIKE_ANIM_SPEED
+        like_button_animation_view.playAnimation()
+    }
+}

base/src/main/java/com/hako/base/widgets/LoadingOverlay.kt

@@ -0,0 +1,18 @@
+package com.hako.base.widgets
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.FrameLayout
+import com.hako.base.R
+import com.hako.base.extensions.inflate
+
+class LoadingOverlay @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : FrameLayout(context, attrs, defStyleAttr) {
+
+    init {
+        inflate(R.layout.loading_overlay, true)
+    }
+}

base/src/main/java/com/hako/base/widgets/NetworkErrorOverlay.kt

@@ -0,0 +1,18 @@
+package com.hako.base.widgets
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.FrameLayout
+import com.hako.base.R
+import com.hako.base.extensions.inflate
+
+class NetworkErrorOverlay @JvmOverloads constructor(
+    context: Context,
+    attrs: AttributeSet? = null,
+    defStyleAttr: Int = 0
+) : FrameLayout(context, attrs, defStyleAttr) {
+
+    init {
+        inflate(R.layout.network_error_overlay, true)
+    }
+}

base/src/main/res/drawable/bg_card.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape >
+            <solid android:color="@color/card_background" />
+            <corners android:radius="4dp" />
+        </shape>
+    </item>
+</layer-list>

base/src/main/res/layout/like_button.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    tools:parentTag="android.widget.FrameLayout">
+
+    <com.airbnb.lottie.LottieAnimationView
+        android:id="@+id/like_button_animation_view"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:scaleType="centerInside"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:lottie_rawRes="@raw/like_animation" />
+
+</merge>

base/src/main/res/layout/loading_overlay.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:background="@color/soft_background">
+
+    <com.airbnb.lottie.LottieAnimationView
+        android:id="@+id/loading_overlay_animation_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:scaleType="centerInside"
+        app:lottie_autoPlay="true"
+        app:lottie_loop="true"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:lottie_rawRes="@raw/loading_animation" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

base/src/main/res/layout/network_error_overlay.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:background="@color/soft_background">
+
+    <com.airbnb.lottie.LottieAnimationView
+        android:id="@+id/loading_overlay_animation_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:scaleType="centerInside"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.48"
+        app:lottie_autoPlay="true"
+        app:lottie_loop="true"
+        app:lottie_rawRes="@raw/network_animation" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="Network error!"
+        android:textSize="24sp"
+        app:layout_constraintEnd_toEndOf="@+id/loading_overlay_animation_view"
+        app:layout_constraintStart_toStartOf="@+id/loading_overlay_animation_view"
+        app:layout_constraintTop_toBottomOf="@+id/loading_overlay_animation_view" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

base/src/main/res/values/colors.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="soft_background">#EEEEEE</color>
+
+    <color name="transparent">#00000000</color>
+
+    <color name="card_background">#FFFFFF</color>
+</resources>

base/versions.gradle

@@ -7,6 +7,7 @@ versions.androidx_core = "1.1.0"
 versions.androidx_constraint_layout = "1.1.3"
 versions.androidx_lifecycle = "2.2.0"
 versions.androidx_recycler_view = "1.1.0"
+versions.androidx_navigation = "2.2.0"
 versions.okhttp_logging_interceptor = "4.3.1"
 versions.retrofit = "2.7.1"
 versions.timber = "4.7.1"
@@ -18,6 +19,7 @@ versions.junit = "4.13"
 versions.test = "1.2.0"
 versions.test_ext = "1.1.1"
 versions.espresso = "3.2.0"
+versions.lottie = "3.3.1"
 
 def deps = [:]
 
@@ -33,6 +35,8 @@ androidx.constraint_layout = "androidx.constraintlayout:constraintlayout:$versio
 androidx.lifecycle_ext = "androidx.lifecycle:lifecycle-extensions:$versions.androidx_lifecycle"
 androidx.lifecycle_viewmodel = "androidx.lifecycle:lifecycle-viewmodel-ktx:$versions.androidx_lifecycle"
 androidx.recycler_view = "androidx.recyclerview:recyclerview:$versions.androidx_recycler_view"
+androidx.navigation_fragment = "androidx.navigation:navigation-fragment-ktx:$versions.androidx_navigation"
+androidx.navigation_ui = "androidx.navigation:navigation-ui-ktx:$versions.androidx_navigation"
 deps.androidx = androidx
 
 def retrofit = [:]
@@ -72,5 +76,6 @@ deps.testing = testing
 
 deps.okhttp_logging_interceptor = "com.squareup.okhttp3:logging-interceptor:$versions.okhttp_logging_interceptor"
 deps.timber = "com.jakewharton.timber:timber:$versions.timber"
+deps.lottie = "com.airbnb.android:lottie:$versions.lottie"
 
 ext.deps = deps

build.gradle

@@ -39,7 +39,3 @@ detekt {
 task clean(type: Delete) {
     delete rootProject.buildDir
 }
-
-repositories {
-    google()
-}

core.gradle

@@ -0,0 +1,29 @@
+apply from: '../versions.gradle'
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
+
+android {
+    compileSdkVersion build_versions.target_sdk
+    buildToolsVersion build_versions.build_tools
+
+    defaultConfig {
+        minSdkVersion build_versions.min_sdk
+        targetSdkVersion build_versions.target_sdk
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    testOptions {
+        unitTests.returnDefaultValues = true
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}

settings.gradle

@@ -1,2 +1,2 @@
-include ':app', ':base'
+include ':app', ':base', ':userlist'
 rootProject.name='Friendlists'

tools/detekt.yml

@@ -63,7 +63,7 @@ complexity:
     threshold: 150
   LongMethod:
     active: true
-    threshold: 20
+    threshold: 40
   LongParameterList:
     active: false
     threshold: 6

userlist/.gitignore

@@ -0,0 +1 @@
+/build

userlist/build.gradle

@@ -0,0 +1,6 @@
+apply plugin: 'com.android.library'
+apply from: '../core.gradle'
+
+dependencies {
+    implementation project(':base')
+}

userlist/proguard-rules.pro

@@ -0,0 +1,21 @@
+# 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

userlist/src/main/AndroidManifest.xml

@@ -0,0 +1,2 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.hako.friendlist_userlist" />

userlist/src/main/java/com/hako/userlist/di/UserlistModules.kt

@@ -0,0 +1,17 @@
+package com.hako.userlist.di
+
+import com.hako.base.domain.network.RemoteClient
+import com.hako.userlist.domain.datasource.UserlistDatasource
+import com.hako.userlist.domain.datasource.UserlistRemoteApi
+import com.hako.userlist.domain.usecase.GetUsers
+import com.hako.userlist.viewmodel.UserlistViewmodel
+import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.dsl.module
+
+val userlistModules = module {
+    factory { get<RemoteClient>().getClient(UserlistRemoteApi::class.java) }
+    factory { UserlistDatasource() }
+    factory { GetUsers(get()) }
+
+    viewModel { UserlistViewmodel() }
+}

userlist/src/main/java/com/hako/userlist/domain/datasource/UserlistDatasource.kt

@@ -0,0 +1,13 @@
+package com.hako.userlist.domain.datasource
+
+import com.hako.userlist.model.User
+import io.reactivex.Single
+import org.koin.core.KoinComponent
+import org.koin.core.get
+
+class UserlistDatasource : KoinComponent, UserlistRemoteApi {
+
+    private val api: UserlistRemoteApi = get()
+
+    override fun getUsers(): Single<List<User>> = api.getUsers()
+}

userlist/src/main/java/com/hako/userlist/domain/datasource/UserlistRemoteApi.kt

@@ -0,0 +1,11 @@
+package com.hako.userlist.domain.datasource
+
+import com.hako.userlist.model.User
+import io.reactivex.Single
+import retrofit2.http.GET
+
+interface UserlistRemoteApi {
+
+    @GET("/users")
+    fun getUsers(): Single<List<User>>
+}

userlist/src/main/java/com/hako/userlist/domain/usecase/GetUsers.kt

@@ -0,0 +1,43 @@
+package com.hako.userlist.domain.usecase
+
+import com.hako.base.domain.UseCase
+import com.hako.base.domain.database.dao.UserDao
+import com.hako.userlist.domain.datasource.UserlistDatasource
+import com.hako.userlist.model.UserViewable
+import com.hako.userlist.model.toUserEntity
+import com.hako.userlist.model.toUserViewable
+import io.reactivex.Single
+import io.reactivex.schedulers.Schedulers
+import org.koin.core.KoinComponent
+import org.koin.core.get
+
+class GetUsers(private val dao: UserDao) : KoinComponent,
+    UseCase<UserViewable> {
+
+    private val api: UserlistDatasource = get()
+
+    override fun execute(
+        onSuccess: (List<UserViewable>) -> Unit,
+        onError: (Throwable) -> Unit,
+        onLoading: () -> Unit
+    ) {
+        Single.fromCallable { dao.getAllUsers() }
+            .subscribeOn(Schedulers.io())
+            .doOnError { onError(it) }
+            .doOnSuccess { dbUsers ->
+                if (dbUsers.isEmpty() || dbUsers.count() == 0) {
+                    api.getUsers()
+                        .doOnSuccess {
+                            dao.saveAll(it.map { user -> user.toUserEntity() })
+                            onSuccess(dao.getAllUsers().map { user -> user.toUserViewable() })
+                        }
+                        .doOnSubscribe { onLoading() }
+                        .subscribeOn(Schedulers.io())
+                        .subscribe({}, { onError(it) })
+                } else {
+                    onSuccess(dbUsers.map { it.toUserViewable() })
+                }
+            }
+            .subscribe()
+    }
+}

userlist/src/main/java/com/hako/userlist/feature/UserlistFragment.kt

@@ -0,0 +1,83 @@
+package com.hako.userlist.feature
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.hako.base.domain.network.RequestStatus
+import com.hako.base.extensions.gone
+import com.hako.base.extensions.observeNonNull
+import com.hako.base.extensions.toast
+import com.hako.base.extensions.visible
+import com.hako.userlist.model.UserViewable
+import com.hako.userlist.viewmodel.UserlistViewmodel
+import com.hako.userlist.widget.UserlistAdapter
+import com.hako.friendlist_userlist.R
+import kotlinx.android.synthetic.main.fragment_userlist.*
+import org.koin.androidx.viewmodel.ext.android.viewModel
+import timber.log.Timber
+
+class UserlistFragment : Fragment() {
+
+    private val viewModel: UserlistViewmodel by viewModel()
+    private val chatAdapter by lazy { UserlistAdapter() }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
+    ): View = inflater.inflate(R.layout.fragment_userlist, container, false)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setRecycler()
+        setObservers()
+        viewModel.fetchUsers()
+    }
+
+    private fun setObservers() {
+        viewModel.data.observeNonNull(this) {
+            it.either(::handleFetchError, ::handleFetchSuccess)
+        }
+
+        viewModel.requestStatus.observeNonNull(this) {
+            when (it) {
+                RequestStatus.Ready -> {
+                    fragment_userlist_error_overlay.gone()
+                    fragment_userlist_loading_overlay.gone()
+                }
+                RequestStatus.Loading -> {
+                    fragment_userlist_error_overlay.gone()
+                    fragment_userlist_loading_overlay.visible()
+                }
+                RequestStatus.Errored -> {
+                    fragment_userlist_error_overlay.visible()
+                    fragment_userlist_loading_overlay.gone()
+                }
+            }
+        }
+    }
+
+    private fun handleFetchError(throwable: Throwable) {
+        Timber.e(throwable)
+    }
+
+    private fun handleFetchSuccess(users: List<UserViewable>) {
+        chatAdapter.addAll(users)
+    }
+
+    private fun setRecycler() {
+        fragment_userlist_recycler_container.apply {
+            layoutManager = LinearLayoutManager(context)
+            adapter = chatAdapter.apply {
+                onItemClick = {
+                    context.toast(it.realName)
+                }
+
+                onFavoriteClick = {
+                    context.toast(it.userName)
+                }
+            }
+        }
+    }
+}

userlist/src/main/java/com/hako/userlist/model/UserModels.kt

@@ -0,0 +1,28 @@
+package com.hako.userlist.model
+
+import android.os.Parcelable
+import com.google.gson.annotations.SerializedName
+import com.hako.base.domain.database.entities.UserEntity
+import kotlinx.android.parcel.Parcelize
+
+@Parcelize
+data class User(
+    @SerializedName("id") val id: Int,
+    @SerializedName("name") val realName: String,
+    @SerializedName("username") val userName: String,
+    @SerializedName("email") val email: String,
+    @SerializedName("phone") val phone: String,
+    @SerializedName("website") val website: String
+) : Parcelable
+
+data class UserViewable(
+    val id: Int,
+    val realName: String,
+    val userName: String,
+    var isFavorite: Boolean = false
+)
+
+fun User.toUserEntity() = UserEntity(this.id, this.realName, this.userName, this.email, this.phone, this.website)
+
+fun UserEntity.toUserViewable() = UserViewable(this.id, this.realName, this.userName)
+

userlist/src/main/java/com/hako/userlist/viewmodel/UserlistViewmodel.kt

@@ -0,0 +1,36 @@
+package com.hako.userlist.viewmodel
+
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+import com.hako.base.domain.network.RequestStatus
+import com.hako.base.domain.network.RequestStatus.Ready
+import com.hako.base.domain.network.RequestStatus.Loading
+import com.hako.base.domain.network.RequestStatus.Errored
+import com.hako.base.domain.Either
+import com.hako.userlist.domain.usecase.GetUsers
+import com.hako.userlist.model.UserViewable
+import org.koin.core.KoinComponent
+import org.koin.core.get
+
+class UserlistViewmodel : ViewModel(), KoinComponent {
+
+    val data = MutableLiveData<Either<Throwable, List<UserViewable>>>()
+    val requestStatus = MutableLiveData<RequestStatus>()
+
+    private val getUsers: GetUsers = get()
+
+    fun fetchUsers() {
+        getUsers.execute(
+            onSuccess = {
+                requestStatus.postValue(Ready)
+                data.postValue(Either.Right(it))
+            },
+            onLoading = {
+                requestStatus.postValue(Loading)
+            },
+            onError = {
+                requestStatus.postValue(Errored)
+                data.postValue(Either.Left(it))
+            })
+    }
+}

userlist/src/main/java/com/hako/userlist/widget/UserlistAdapter.kt

@@ -0,0 +1,62 @@
+package com.hako.userlist.widget
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.hako.base.extensions.autoNotify
+import com.hako.userlist.model.UserViewable
+import com.hako.friendlist_userlist.R
+import kotlinx.android.synthetic.main.item_user_card.view.*
+import kotlin.properties.Delegates
+
+class UserlistAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+
+    private var items by Delegates.observable(emptyList<UserViewable>()) { _, oldList, newList ->
+        autoNotify(oldList, newList) { old, new -> old.id == new.id }
+        notifyDataSetChanged()
+    }
+
+    var onItemClick: (UserViewable) -> Unit = { }
+    var onFavoriteClick: (UserViewable) -> Unit = { }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder =
+        UserViewHolder(
+            LayoutInflater
+                .from(parent.context)
+                .inflate(R.layout.item_user_card, parent, false),
+            onItemClick,
+            onFavoriteClick
+        )
+
+    fun getItem(position: Int) = items[position]
+
+    fun addAll(list: List<UserViewable>) {
+        items = list
+    }
+
+    override fun getItemCount() = items.size
+
+    override fun onBindViewHolder(viewholder: RecyclerView.ViewHolder, position: Int) =
+        when (viewholder) {
+            is UserViewHolder -> viewholder.bind(items[position])
+            else -> throw NoWhenBranchMatchedException("Undefined viewholder")
+        }
+}
+
+class UserViewHolder(private val view: View,
+                     private val onItemClick: (UserViewable) -> Unit,
+                     private val onFavoriteClick: (UserViewable) -> Unit) :
+    RecyclerView.ViewHolder(view) {
+
+    fun bind(user: UserViewable) = with(view) {
+        item_user_card_real_name.text = user.realName
+        item_user_card_user_name.text = user.userName
+        item_user_card_container.setOnClickListener {
+            onItemClick(user)
+        }
+        item_user_card_like_button.setOnClickListener {
+            onFavoriteClick(user)
+        }
+    }
+}

userlist/src/main/res/layout/fragment_userlist.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:id="@+id/fragment_userlist_base">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/fragment_userlist_recycler_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.hako.base.widgets.LoadingOverlay
+        android:id="@+id/fragment_userlist_loading_overlay"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <com.hako.base.widgets.NetworkErrorOverlay
+        android:id="@+id/fragment_userlist_error_overlay"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:visibility="gone"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

userlist/src/main/res/layout/item_user_card.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/item_user_card_container"
+    android:layout_width="match_parent"
+    android:layout_height="70dp"
+    android:layout_marginStart="8dp"
+    android:layout_marginTop="8dp"
+    android:layout_marginEnd="8dp"
+    android:background="@drawable/bg_card"
+    android:elevation="2dp"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/item_user_card_real_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="24dp"
+        android:layout_marginTop="16dp"
+        android:textSize="18sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="Real Name" />
+
+    <TextView
+        android:id="@+id/item_user_card_user_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="12sp"
+        app:layout_constraintStart_toStartOf="@+id/item_user_card_real_name"
+        app:layout_constraintTop_toBottomOf="@+id/item_user_card_real_name"
+        tools:text="User Name" />
+
+    <com.hako.base.widgets.LikeButton
+        android:id="@+id/item_user_card_like_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="24dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

userlist/src/main/res/navigation/userlist_navigation.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/userlist_navigation"
+    app:startDestination="@id/userListFragment">
+
+    <fragment
+        android:id="@+id/userListFragment"
+        android:name="com.hako.userlist.feature.UserlistFragment"
+        tools:layout="@layout/fragment_userlist"
+        android:label="UserListFragment" />
+
+</navigation>

userlist/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">userlist</string>
+</resources>