Start integration with app: adds Hilt for dep injection, implements a view model

backend/build.gradle

@@ -27,7 +27,7 @@ android {
         targetCompatibility JavaVersion.VERSION_1_8
     }
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
     }
 }
 
@@ -48,7 +48,7 @@ dependencies {
     implementation 'com.google.code.gson:gson:2.9.0'
 
     // Realm
-    implementation 'io.realm.kotlin:library-base:1.10.0'
+    implementation "io.realm.kotlin:library-base:${realm_version}"
 
     // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core
     implementation group: 'org.jetbrains.kotlinx', name: 'kotlinx-coroutines-core', version: '1.7.3', ext: 'pom'

backend/src/main/java/net/buzzert/kordophone/backend/model/Conversation.kt

@@ -27,6 +27,11 @@ data class Conversation(
     @SerializedName("lastMessage")
     var lastMessage: Message?,
 ) {
+
+    fun formattedDisplayName(): String {
+        return displayName ?: participants.joinToString(", ")
+    }
+
     override fun equals(other: Any?): Boolean {
         if (other == null || javaClass != other.javaClass) return false
 
@@ -39,4 +44,15 @@ data class Conversation(
             unreadCount == o.unreadCount
         )
     }
+
+    override fun hashCode(): Int {
+        var result = guid.hashCode()
+        result = 31 * result + date.hashCode()
+        result = 31 * result + participants.hashCode()
+        result = 31 * result + (displayName?.hashCode() ?: 0)
+        result = 31 * result + unreadCount
+        result = 31 * result + (lastMessagePreview?.hashCode() ?: 0)
+        result = 31 * result + (lastMessage?.hashCode() ?: 0)
+        return result
+    }
 }

backend/src/test/java/net/buzzert/kordophone/backend/MockServer.kt

@@ -30,6 +30,7 @@ import retrofit2.Response
 import java.util.Date
 import java.util.UUID
 
+@OptIn(ExperimentalStdlibApi::class)
 class MockServer {
     val version = "Kordophone-2.0"
     val conversations: MutableList<Conversation> = mutableListOf()