feat: Authentication (#39)

## <sup><sup>&#x1F534; [Mandatory]</sup></sup> What's the change?
- Sign in, Register actions added with Firebase Authentication
- Email, Google and Anonymous types added
- Credential manager added to safe and quick login

## <sup><sup>&#x1F534; [Mandatory]</sup></sup> Why do we need this
change?
- To authenticate users for the app

## Related issues/PRs/Jira ticket links
- #40

## <sup><sup>&#x1F534; [Mandatory if it's UI related]</sup></sup>
Screenshots
-

.gitignore

@@ -71,4 +71,4 @@ proguard/
 *.log
 
 # AjCore files
-ajcore.*
+ajcore.*

README.md

@@ -67,8 +67,8 @@ Doodle demonstrates modern Android development with Koin, Coroutines, Flow, Jetp
 
 ```properties
   doodle.api.url="https://api.jikan.moe/v4/"
-  doodle.api.key="sample api key"
-  #Jikan API doesn't require an API key, but I'm using it as an example for later usages.
+  doodle.api.key="sample api key" #Jikan API doesn't require an API key, but I'm using it as an example for later usages.
+  doodle.google.api.key="sample google api ket" #Google API key is required for Google Authentication
 ```
 
 - <a href="https://github.com/pinterest/ktlint" target="_blank">Ktlint</a> should be added using brew

app/.gitignore

@@ -71,4 +71,4 @@ proguard/
 *.log
 
 # AjCore files
-ajcore.*
+ajcore.*

app/google-services.json

@@ -28,7 +28,10 @@
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyADM5K8M_9pE7nU-OkFFeadYLWK0MexOsc"
+          "current_key": "AIzaSyAGd3e4gg1HrUbHqBHWDiAFj_iqN4P_Hf4"
+        },
+        {
+          "current_key": "AIzaSyAFs09_-yOtdWuK7olSYjQdgGQxjQOIrfs"
         }
       ],
       "services": {
@@ -65,7 +68,10 @@
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyADM5K8M_9pE7nU-OkFFeadYLWK0MexOsc"
+          "current_key": "AIzaSyAGd3e4gg1HrUbHqBHWDiAFj_iqN4P_Hf4"
+        },
+        {
+          "current_key": "AIzaSyAFs09_-yOtdWuK7olSYjQdgGQxjQOIrfs"
         }
       ],
       "services": {
@@ -102,7 +108,10 @@
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyADM5K8M_9pE7nU-OkFFeadYLWK0MexOsc"
+          "current_key": "AIzaSyAGd3e4gg1HrUbHqBHWDiAFj_iqN4P_Hf4"
+        },
+        {
+          "current_key": "AIzaSyAFs09_-yOtdWuK7olSYjQdgGQxjQOIrfs"
         }
       ],
       "services": {
@@ -139,7 +148,10 @@
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyADM5K8M_9pE7nU-OkFFeadYLWK0MexOsc"
+          "current_key": "AIzaSyAGd3e4gg1HrUbHqBHWDiAFj_iqN4P_Hf4"
+        },
+        {
+          "current_key": "AIzaSyAFs09_-yOtdWuK7olSYjQdgGQxjQOIrfs"
         }
       ],
       "services": {
@@ -176,7 +188,10 @@
       ],
       "api_key": [
         {
-          "current_key": "AIzaSyADM5K8M_9pE7nU-OkFFeadYLWK0MexOsc"
+          "current_key": "AIzaSyAGd3e4gg1HrUbHqBHWDiAFj_iqN4P_Hf4"
+        },
+        {
+          "current_key": "AIzaSyAFs09_-yOtdWuK7olSYjQdgGQxjQOIrfs"
         }
       ],
       "services": {

app/proguard-rules.pro

@@ -63,4 +63,10 @@
 
 # Retain generic signatures of TypeToken and its subclasses with R8 version 3.0 and higher.
 -keep,allowobfuscation,allowshrinking class com.google.gson.reflect.TypeToken
--keep,allowobfuscation,allowshrinking class * extends com.google.gson.reflect.TypeToken
+-keep,allowobfuscation,allowshrinking class * extends com.google.gson.reflect.TypeToken
+
+# Keep Credentials API
+-if class androidx.credentials.CredentialManager
+-keep class androidx.credentials.playservices.** {
+  *;
+}

app/src/main/java/dev/enesky/doodle/app/di/AppModule.kt

@@ -17,6 +17,7 @@
 package dev.enesky.doodle.app.di
 
 import dev.enesky.core.network.di.networkModule
+import dev.enesky.feature.login.di.loginManagerModule
 import org.koin.core.annotation.KoinExperimentalAPI
 import org.koin.core.module.includes
 import org.koin.dsl.lazyModule
@@ -30,4 +31,7 @@ val appModule = lazyModule {
 
     // Includes all the lazy modules from the core modules
     includes(networkModule, viewModelModule)
+
+    // Includes all the lazy modules from the feature modules
+    includes(loginManagerModule)
 }

app/src/main/java/dev/enesky/doodle/app/navigation/DoodleNavHost.kt

@@ -7,7 +7,7 @@ import androidx.navigation.compose.NavHost
 import dev.enesky.core.navigation.DoodleNavigationDestination
 import dev.enesky.feature.details.navigation.DetailsDestination
 import dev.enesky.feature.details.navigation.detailsGraph
-import dev.enesky.feature.login.navigation.loginGraph
+import dev.enesky.feature.login.loginGraph
 import dev.enesky.feature.main.navigation.HomeDestination
 import dev.enesky.feature.main.navigation.homeGraph
 

app/src/main/java/dev/enesky/doodle/app/ui/DoodleApp.kt

@@ -23,11 +23,14 @@ import dev.enesky.core.design_system.DoodleTheme
 import dev.enesky.doodle.app.navigation.DoodleNavHost
 import dev.enesky.doodle.app.ui.component.DoodleSnackbarHost
 import dev.enesky.doodle.app.ui.component.LocalSnackbarHostState
+import dev.enesky.feature.login.manager.AuthManager
+import dev.enesky.feature.main.navigation.HomeDestination
+import org.koin.compose.koinInject
 
 @OptIn(ExperimentalLayoutApi::class)
-@Suppress("ModifierMissing")
 @Composable
 fun DoodleApp(
+    modifier: Modifier = Modifier,
     appState: DoodleAppState = rememberDoodleAppState(),
     // TODO: add new parameter -> systemBarsColor: Color = DoodleTheme.colors.primaryDark
 ) {
@@ -64,6 +67,22 @@ fun DoodleApp(
                 // Use this when you want to use all the screen
                 // contentWindowInsets = WindowInsets(0.dp, 0.dp, 0.dp, 0.dp),
             ) { innerPadding ->
+
+                /**
+                 * Update the start destination according to the user's login status
+                 */
+                val authManager: AuthManager = koinInject<AuthManager>()
+                if (authManager.isUserLoggedIn()) {
+                    appState.startDestination = HomeDestination
+                }
+
+                /**
+                 * TODO: Loading screen
+                 * if (appState.showLoading) {
+                 *   LoadingWithTriangleDots()
+                 * }
+                 */
+
                 DoodleNavHost(
                     modifier = Modifier
                         .padding(paddingValues = innerPadding)

app/src/main/java/dev/enesky/doodle/app/ui/DoodleAppState.kt

@@ -10,7 +10,7 @@ import androidx.navigation.NavHostController
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
 import dev.enesky.core.navigation.DoodleNavigationDestination
-import dev.enesky.feature.login.navigation.LoginDestination
+import dev.enesky.feature.login.LoginDestination
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.update
@@ -25,8 +25,7 @@ fun rememberDoodleAppState(
     snackbarHostState: SnackbarHostState = remember { SnackbarHostState() },
     coroutineScope: CoroutineScope = rememberCoroutineScope(),
     navController: NavHostController = rememberNavController(),
-    // TODO: Check if user is logged in or not
-    startDestination: LoginDestination = LoginDestination,
+    startDestination: DoodleNavigationDestination = LoginDestination,
 ) = remember(
     snackbarHostState,
     coroutineScope,
@@ -46,7 +45,7 @@ class DoodleAppState(
     val snackbarHostState: SnackbarHostState,
     val coroutineScope: CoroutineScope,
     val navController: NavHostController,
-    val startDestination: LoginDestination,
+    var startDestination: DoodleNavigationDestination,
 ) {
     init {
         coroutineScope.launch {
@@ -61,7 +60,6 @@ class DoodleAppState(
             }
         }
     }
-
     val currentDestination: NavDestination?
         @Composable get() = navController.currentBackStackEntryAsState().value?.destination
 

build-logic/convention/build.gradle.kts

@@ -126,6 +126,10 @@ gradlePlugin {
             id = libs.plugins.common.spotless.get().pluginId
             implementationClass = "$rootPath.common.SpotlessPlugin"
         }
+        register("authentication") {
+            id = libs.plugins.common.authentication.get().pluginId
+            implementationClass = "$rootPath.common.AuthenticationPlugin"
+        }
     }
 }
 

build-logic/convention/src/main/kotlin/dev/enesky/build_logic/convention/AndroidCompose.kt

@@ -41,7 +41,9 @@ internal fun Project.configureAndroidCompose(commonExtension: CommonExtension<*,
             val composeBomPlatform = platform(libs.compose.bom.get().toString())
             add("implementation", composeBomPlatform)
             add("implementation", libs.bundles.compose.materials)
-            add("implementation", libs.androidx.navigation.compose)
             add("androidTestImplementation", composeBomPlatform)
+
+            add("implementation", libs.androidx.navigation.compose)
+            add("implementation", libs.lifecycle.runtime.compose)
         }
     }

build-logic/convention/src/main/kotlin/dev/enesky/build_logic/convention/Extensions.kt

@@ -22,8 +22,20 @@ import org.gradle.api.Project
 import org.gradle.api.plugins.ExtensionAware
 import org.gradle.kotlin.dsl.the
 import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions
+import java.util.Properties
 
 internal val Project.libs get() = the<LibrariesForLibs>()
 
 internal fun CommonExtension<*, *, *, *, *>.kotlinOptions(block: KotlinJvmOptions.() -> Unit) =
     (this as ExtensionAware).extensions.configure("kotlinOptions", block)
+
+internal fun getLocalProperties(rootProject: Project): Properties {
+    val localProperties = Properties()
+    val localPropertiesFile = rootProject.file("local.properties") // It's ignored by git
+    if (localPropertiesFile.exists() && localPropertiesFile.isFile) {
+        localPropertiesFile.inputStream().use { input ->
+            localProperties.load(input)
+        }
+    }
+    return localProperties
+}

build-logic/convention/src/main/kotlin/dev/enesky/build_logic/convention/plugins/common/ApiKeyProviderPlugin.kt

@@ -17,25 +17,18 @@
 package dev.enesky.build_logic.convention.plugins.common
 
 import com.android.build.gradle.LibraryExtension
+import dev.enesky.build_logic.convention.getLocalProperties
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.kotlin.dsl.getByType
-import java.util.Properties
 
 /**
  * Configure Api Key Provider
  * -> Only for core/network/build.gradle.kts <-
  */
 class ApiKeyProviderPlugin : Plugin<Project> {
     override fun apply(target: Project) = with(target) {
-        val localProperties = Properties()
-        val localPropertiesFile = rootProject.file("local.properties") // It's ignored by git
-        if (localPropertiesFile.exists() && localPropertiesFile.isFile) {
-            localPropertiesFile.inputStream().use { input ->
-                localProperties.load(input)
-            }
-        }
-
+        val localProperties = getLocalProperties(rootProject)
         val doodleApiUrl: String = checkNotNull(
             localProperties.getProperty("doodle.api.url") ?: System.getenv("DOODLE_API_URL") ?: "\"\"",
         )

build-logic/convention/src/main/kotlin/dev/enesky/build_logic/convention/plugins/common/AuthenticationPlugin.kt

@@ -0,0 +1,41 @@
+package dev.enesky.build_logic.convention.plugins.common
+
+import com.android.build.gradle.LibraryExtension
+import dev.enesky.build_logic.convention.getLocalProperties
+import dev.enesky.build_logic.convention.libs
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getByType
+
+/**
+ * Created by Enes Kamil YILMAZ on 19/11/2023
+ */
+class AuthenticationPlugin : Plugin<Project> {
+    override fun apply(target: Project) = with(target) {
+        val localProperties = getLocalProperties(rootProject)
+        val googleApiKey: String = checkNotNull(
+            localProperties.getProperty("doodle.google.api.key")
+                ?: System.getenv("DOODLE_GOOGLE_API_KEY")
+                ?: "\"\"",
+        )
+
+        with(extensions.getByType<LibraryExtension>()) {
+            buildFeatures.buildConfig = true
+            defaultConfig.buildConfigField("String", "DOODLE_GOOGLE_API_KEY", googleApiKey)
+        }
+
+        dependencies {
+            // Firebase Authentication
+            add("implementation", platform(libs.firebase.bom))
+            add("implementation", libs.firebase.authentication)
+
+            // Google Sign In
+            add("implementation", libs.google.auth)
+
+            // Credential Manager
+            add("implementation", libs.credential.manager)
+            add("implementation", libs.credential.manager.play.services.auth)
+        }
+    }
+}

build-logic/convention/src/main/kotlin/dev/enesky/build_logic/convention/plugins/common/FeaturePlugin.kt

@@ -27,6 +27,9 @@ class FeaturePlugin : Plugin<Project> {
     override fun apply(target: Project) = with(target) {
         dependencies {
             add("implementation", project(":core:design-system"))
+            add("implementation", project(":core:common"))
+            add("implementation", project(":core:data"))
+            add("implementation", project(":core:ui"))
         }
     }
 }

config/detekt/compose-config.yml

@@ -37,7 +37,7 @@ Compose:
     # You can optionally disable the checks in this rule for regex matches against the composable name (e.g. molecule presenters)
     # allowedComposableFunctionNames: .*Presenter,.*MoleculePresenter
   ComposableParamOrder:
-    active: true
+    active: false
   PreviewAnnotationNaming:
     active: true
   PreviewPublic:

config/detekt/config.yml

@@ -205,7 +205,7 @@ exceptions:
   ThrowingNewInstanceOfSameException:
     active: true
   TooGenericExceptionCaught:
-    active: true
+    active: false
     excludes: ['**/test/**', '**/androidTest/**']
     exceptionNames:
       - ArrayIndexOutOfBoundsException

core/common/build.gradle.kts

@@ -21,3 +21,7 @@ plugins {
 }
 
 android.namespace = "dev.enesky.core.common"
+
+dependencies {
+    implementation(projects.core.data)
+}