Migrate Library to Kotlin

android/build.gradle

@@ -41,7 +41,9 @@ dependencies {
     implementation "androidx.core:core-ktx:1.3.2"
     implementation "androidx.appcompat:appcompat:1.2.0"
     implementation "com.google.android.material:material:1.3.0"
+
     testImplementation "junit:junit:4.+"
+
     androidTestImplementation "androidx.test.ext:junit:1.1.2"
     androidTestImplementation "androidx.test.espresso:espresso-core:3.3.0"
 }

build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = "1.3.72"
+    ext.kotlin_version = "1.4.31"
 
     repositories {
         google()

library/build.gradle

@@ -1,6 +1,6 @@
 plugins {
-    // Apply the scala Plugin to add support for Scala.
-    id "scala"
+    // Apply the org.jetbrains.kotlin.jvm Plugin to add support for Kotlin.
+    id "org.jetbrains.kotlin.jvm"
 
     // Apply the java-library plugin for API and implementation separation.
     id "java-library"
@@ -15,26 +15,21 @@ repositories {
 }
 
 dependencies {
-    // Use Scala 2.13 in our library project
-    implementation "org.scala-lang:scala-library:2.13.3"
+    // Align versions of all Kotlin components
+    implementation platform("org.jetbrains.kotlin:kotlin-bom")
+
+    // Use the Kotlin JDK 8 standard library.
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
 
     // This dependency is used internally, and not exposed to consumers on their own compile classpath.
     implementation "com.google.guava:guava:30.0-jre"
 
-    // Use Scalatest for testing our library
-    testImplementation "junit:junit:4.13.1"
-    testImplementation "org.scalatest:scalatest_2.13:3.2.3"
-    testImplementation "org.scalatestplus:junit-4-13_2.13:3.2.2.0"
+    // Use the Kotlin test library.
+    testImplementation "org.jetbrains.kotlin:kotlin-test"
 
-    // Need scala-xml at test runtime
-    testRuntimeOnly "org.scala-lang.modules:scala-xml_2.13:1.2.0"
+    // Use the Kotlin JUnit integration.
+    testImplementation "org.jetbrains.kotlin:kotlin-test-junit"
 
     // This dependency is exported to consumers, that is to say found on their compile classpath.
     api "org.apache.commons:commons-math3:3.6.1"
 }
-
-tasks.named("jar") {
-    manifest {
-        attributes("Implementation-Title": "TribuFu", "Implementation-Version": project.version)
-    }
-}

library/src/main/kotlin/com/tribufu/sdk/Handler.kt

@@ -2,4 +2,4 @@
 
 package com.tribufu.sdk
 
-class System {}
+interface IHandler {}

library/src/main/kotlin/com/tribufu/sdk/System.kt

@@ -2,4 +2,4 @@
 
 package com.tribufu.sdk
 
-class Handler {}
+interface ISystem {}

library/src/main/kotlin/com/tribufu/sdk/TribuFu.kt

@@ -0,0 +1,13 @@
+// Copyright (c) TribuFu. All Rights Reserved
+
+package com.tribufu.sdk
+
+class TribuFu {
+    // Used to load the 'TribuFu' library on application startup.
+    init {
+        System.loadLibrary("TribuFu_Jvm")
+    }
+
+    /** A native method that is implemented by the 'TribuFu' native library. */
+    external fun Hello(input: String ): String
+}

library/src/main/kotlin/com/tribufu/sdk/models/Email.kt

@@ -0,0 +1,10 @@
+// Copyright (c) TribuFu. All Rights Reserved
+
+package com.tribufu.sdk.models
+
+class Email {
+    var address = ""
+    var user_id = "1"
+    var confirmed = false
+    var primary = true
+}

library/src/main/kotlin/com/tribufu/sdk/models/User.kt

@@ -1,11 +1,12 @@
-// Copyright (c) TribuFu. All Rights Reserved.
+// Copyright (c) TribuFu. All Rights Reserved
 
 package com.tribufu.sdk.models
 
 class User {
-    val id = ""
-    val name = ""
+    var id = ""
+    var name = ""
     var display_name = ""
+    var password_hash = ""
     var role = Role.User
     var confirmed = false
     var two_factor_enabled = false
@@ -15,15 +16,15 @@ class User {
     var parental_control = false
     var profile_url = ""
     var public_birthday = false
-    var birthday = ""
+    var Birthday = ""
     var location = ""
     var timezone = ""
     var language = ""
     var currency = ""
     var theme = Theme.Light
     var ip_address = ""
-    val registration_ip_address = ""
-    val Joined = ""
+    var registration_ip_address = ""
+    var Joined = ""
     var Updated = ""
     var failed_logins = 0
     var about = ""
@@ -32,21 +33,33 @@ class User {
     var avatar_url = ""
     var background_url = ""
     var status = Status.Offline
-    var last_online = ""
-    var last_activity = ""
-    var last_post = ""
+    var LastOnline = ""
+    var LastActivity = ""
+    var LastPost = ""
     var warnings = 0
-    var last_warn = ""
+    var LastWarn = ""
 }
 
-object Role extends Enumeration {
-    val User, Bot, Helper, Tester, Developer, Moderator, Admin, Root = Value
+enum class Role {
+    User,
+    Bot,
+    Helper,
+    Tester,
+    Developer,
+    Moderator,
+    Admin,
+    Root
 }
 
-object Theme extends Enumeration {
-    val Light, Dark = Value
+enum class Theme {
+    Light,
+    Dark
 }
 
-object Status extends Enumeration {
-    val Offline, Away, Disturb, Online, Playing = Value
+enum class Status {
+    Offline,
+    Away,
+    Disturb,
+    Online,
+    Playing
 }

library/src/main/scala/com/tribufu/sdk/TribuFu.scala

@@ -1,17 +0,0 @@
-// Copyright (c) TribuFu. All Rights Reserved.
-
-package com.tribufu.sdk
-
-class TribuFu {
-    Init()
-
-    // Used to load the 'TribuFu' library on application startup.
-    private def Init() {
-        System.loadLibrary("TribuFu_Jvm")
-    }
-
-    /**
-     * A native method that is implemented by the 'TribuFu' native library.
-     */
-    @native def Hello(input: String): String
-}

library/src/main/scala/com/tribufu/sdk/models/Email.scala

@@ -1,11 +0,0 @@
-// Copyright (c) TribuFu. All Rights Reserved.
-
-package com.tribufu.sdk.models
-
-class Email() {
-    val address = ""
-    val added = ""
-    var updated = ""
-    var confirmed = false
-    var primary = true
-}

library/src/test/kotlin/library/kotlin/TribuFuTest.kt

@@ -0,0 +1,13 @@
+// Copyright (c) TribuFu. All Rights Reserved
+
+package com.tribufu.sdk
+
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class LibraryTest {
+    @Test fun testSomeLibraryMethod() {
+        //val library = TribuFu()
+        assertTrue(true, "someLibraryMethod should return 'true'")
+    }
+}

library/src/test/scala/com/tribufu/sdk/TribuFuSuite.scala

@@ -1,16 +0,0 @@
-// Copyright (c) TribuFu. All Rights Reserved.
-
-package com.tribufu.sdk
-
-import org.junit.runner.RunWith
-import org.scalatest.funsuite.AnyFunSuite
-import org.scalatestplus.junit.JUnitRunner
-
-@RunWith(classOf[JUnitRunner])
-class TribuFuSuite extends AnyFunSuite {
-    test("Hello is always true") {
-        //def library = new TribuFu()
-        //assert(library.Hello("Scala") == "Scala")
-        assert(true)
-    }
-}