Modularized the app and moved the book details

app/build.gradle.kts

@@ -3,9 +3,9 @@ plugins {
     alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.hilt.android)
+    alias(libs.plugins.kotlin.serialization)
     id("kotlin-kapt")
     id("kotlin-parcelize")
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.0"
 }
 
 android {
@@ -99,6 +99,10 @@ dependencies {
     //noinspection KaptUsageInsteadOfKsp
     kapt(libs.compiler)
 
+    implementation(project(":common-navigation"))
+    implementation(project(":common-domain"))
+
+
     testImplementation(libs.junit)
     testImplementation(libs.mockito.kotlin)
     testImplementation(libs.kotlinx.coroutines.test)

app/src/main/java/com/don/preface/MainActivity.kt

@@ -18,19 +18,13 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.scale
-import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.colorResource
 import androidx.compose.ui.res.painterResource
 import androidx.hilt.navigation.compose.hiltViewModel
-import androidx.navigation.compose.NavHost
-import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
-import com.don.preface.presentation.navigation.NavGraph
-import com.don.preface.presentation.screens.book_details.BookDetailsScreen
-import com.don.preface.presentation.screens.search.BookSearchScreen
-import com.don.preface.presentation.screens.search.SearchViewModel
 import com.don.preface.ui.theme.PrefaceTheme
 import dagger.hilt.android.AndroidEntryPoint
+import ke.don.shared_navigation.NavGraph
 import kotlinx.coroutines.delay
 
 @AndroidEntryPoint
@@ -42,12 +36,9 @@ class MainActivity : ComponentActivity() {
             PrefaceTheme {
                 val navController = rememberNavController()
 
-                val searchViewModel: SearchViewModel = hiltViewModel()
-
                 Surface(modifier = Modifier.fillMaxSize()) {
                     NavGraph(
                         navController = navController,
-                        searchViewModel = searchViewModel
                     )
 
                 }
@@ -56,12 +47,6 @@ class MainActivity : ComponentActivity() {
     }
 }
 
-enum class PrefaceScreens {
-    Splash,
-    Search,
-    Details, // Future screens can be added here
-}
-
 @Composable
 fun PrefaceSplashScreen(
     modifier: Modifier = Modifier,

build.gradle.kts

@@ -4,4 +4,5 @@ plugins {
     alias(libs.plugins.kotlin.android) apply false
     alias(libs.plugins.hilt.android) apply false
     alias(libs.plugins.kotlin.compose) apply false
+    alias(libs.plugins.android.library) apply false
 }

common-domain/.gitignore

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

common-domain/build.gradle.kts

@@ -0,0 +1,43 @@
+plugins {
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.android)
+}
+
+android {
+    namespace = "ke.don.shared_domain"
+    compileSdk = 35
+
+    defaultConfig {
+        minSdk = 24
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    kotlinOptions {
+        jvmTarget = "11"
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+}

common-domain/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

common-domain/src/androidTest/java/ke/don/shared_domain/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package ke.don.shared_domain
+
+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("ke.don.shared_domain.test", appContext.packageName)
+    }
+}

common-domain/src/main/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

app/src/main/java/com/don/preface/presentation/navigation/Screens.kt → common-domain/src/main/java/ke/don/shared_domain/screens/Screens.kt

@@ -1,4 +1,4 @@
-package com.don.preface.presentation.navigation
+package ke.don.shared_domain.screens
 
 sealed class Screens(
     var route: String

common-domain/src/test/java/ke/don/shared_domain/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package ke.don.shared_domain
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}

common-navigation/.gitignore

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