Migration from GreenDAO to Room and other refactoring

app/build.gradle

@@ -2,19 +2,16 @@ buildscript {
     repositories {
         mavenCentral()
     }
-    dependencies {
-        classpath libs.green.dao.gradle.plugin
-    }
 }
 
 plugins {
     alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.kapt)
 }
 import java.util.regex.Matcher
 import java.util.regex.Pattern
 
 apply plugin: 'com.android.application'
-apply plugin: 'org.greenrobot.greendao'
 apply plugin: 'maven-publish'
 
 android {
@@ -54,25 +51,26 @@ android {
     }
 }
 
-greendao {
-    schemaVersion android.defaultConfig.versionCode
-    targetGenDir = new File('app/src/main/java')
-    daoPackage = android.defaultConfig.applicationId + '.dao'
-}
-
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     implementation libs.elimu.content.provider // https://jitpack.io/#ai.elimu/content-provider
 
-    implementation libs.green.dao
     implementation libs.circle.imageview
     implementation libs.androidx.core.ktx
+    implementation libs.androidx.activity.ktx
+
+    implementation libs.room.runtime
+    implementation libs.room.ktx
+    kapt libs.room.compiler
+
+    implementation libs.javapoet
 
     testImplementation libs.junit
 
     androidTestImplementation libs.androidx.junit
     androidTestImplementation libs.androidx.espresso
+
 }
 
 publishing {

app/src/main/AndroidManifest.xml

@@ -11,7 +11,7 @@
         android:theme="@style/AppTheme">
 
         <activity
-            android:name=".ChatActivity"
+            android:name=".ui.ChatActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />