[FEATURE] #4 SNS 로그인 구현 (#6)

* [base] firebase 라이브러리 추가 및 적용

* [base] google-services.json 추가

* [base] gitignore 업데이트

* [chore] 구글 로그인 의존성 마이그레이션

* [chore] 인터넷 권한 추가

* [chore] 미사용 리소스 제거

* [chore] target api 수정

* [chore] credentials proguard 추가

* [chore] login 모듈 manifest 제거

* [chore] 미사용 리소스 제거

* [chore] theme 디자인 시스템 반영 및 로그인 화면 등록

* [feature] 구글 로그인 구현

* [chore] 미사용 리소스 제거 및 즁요 정보 은닉화

* [chore] 트레일링 콤마 추가

* [chore] properties.getProperty elvis 연산 추가

* [chore] properties.getProperty("web_client_id") null인 경우 추가

* [chore] google client id ktlint ci 조건 추가

.github/workflows/ktlint.yml

@@ -21,6 +21,12 @@ jobs:
           distribution: 'temurin'
           cache: gradle
 
+      - name: check google client id
+        env:
+          GOOGLE_CLIENT_ID: ${{secrets.GOOGLE_CLIENT_ID}}
+        run: |
+          echo web_client_id=\""$GOOGLE_CLIENT_ID"\" >> local.properties
+          
       - name: Run ktlint
         run: ./gradlew ktlintCheck
 

.gitignore

@@ -12,4 +12,4 @@
 /captures
 .externalNativeBuild
 .cxx
-local.properties
+app/google-services.json

app/.gitignore

@@ -1 +1,3 @@
-/build
+/build
+/local.properties
+google-services.json

app/build.gradle.kts

@@ -65,4 +65,7 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+
+    implementation(project(":core:ui"))
+    implementation(project(":feature:login"))
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -11,7 +13,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.Pokit"
-        tools:targetApi="31">
+        tools:targetApi="34">
         <activity
             android:name=".MainActivity"
             android:exported="true"

app/src/main/java/pokitmons/pokit/MainActivity.kt

@@ -3,44 +3,16 @@ package pokitmons.pokit
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
-import pokitmons.pokit.ui.theme.PokitTheme
+import pokitmons.pokit.core.ui.theme.PokitTheme
+import pokitmons.pokit.login.LoginScreen
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContent {
             PokitTheme {
-                // A surface container using the 'background' color from the theme
-                Surface(
-                    modifier = Modifier.fillMaxSize(),
-                    color = MaterialTheme.colorScheme.background
-                ) {
-                    Greeting("Android")
-                }
+                LoginScreen()
             }
         }
     }
 }
-
-@Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Text(
-        text = "Hello $name!",
-        modifier = modifier
-    )
-}
-
-@Preview(showBackground = true)
-@Composable
-fun GreetingPreview() {
-    PokitTheme {
-        Greeting("Android")
-    }
-}

feature/login/build.gradle.kts

@@ -1,25 +1,37 @@
+import java.io.FileInputStream
+import java.util.Properties
+
 plugins {
-    alias(libs.plugins.com.android.application)
+    alias(libs.plugins.com.android.library)
     alias(libs.plugins.org.jetbrains.kotlin.android)
 }
 
+val properties = Properties()
+val localPropertiesFile = rootProject.file("local.properties")
+
+if (localPropertiesFile.exists()) {
+    properties.load(FileInputStream(localPropertiesFile))
+}
+
 android {
     namespace = "pokitmons.pokit.login"
     compileSdk = 34
 
     defaultConfig {
-        applicationId = "pokitmons.pokit.login"
         minSdk = 24
-        targetSdk = 34
-        versionCode = 1
-        versionName = "1.0"
+
+        buildConfigField("String", "WEB_CLIENT_ID", properties.getProperty("web_client_id") ?: "web_client_id is empty")
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
             useSupportLibrary = true
         }
     }
 
+    buildFeatures {
+        buildConfig = true
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false
@@ -50,7 +62,6 @@ android {
 }
 
 dependencies {
-
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.activity.compose)
@@ -66,4 +77,8 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+
+    implementation(libs.androidx.credentials)
+    implementation(libs.androidx.credentials.play.services.auth)
+    implementation(libs.googleid)
 }

feature/login/proguard-rules.pro

@@ -18,4 +18,9 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile
+
+-if class androidx.credentials.CredentialManager
+-keep class androidx.credentials.playservices.** {
+  *;
+}

feature/login/src/main/AndroidManifest.xml

@@ -1,24 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <application
-        android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
-        android:supportsRtl="true"
-        android:theme="@style/Theme.Pokit">
-        <activity
-            android:name=".MainActivity"
-            android:exported="true"
-            android:label="@string/app_name"
-            android:theme="@style/Theme.Pokit">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-    </application>
-
 </manifest>

feature/login/src/main/java/pokitmons/pokit/login/LoginScreen.kt

@@ -0,0 +1,49 @@
+package pokitmons.pokit.login
+
+import android.annotation.SuppressLint
+import android.util.Log
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.platform.LocalContext
+import androidx.credentials.CredentialManager
+import androidx.credentials.GetCredentialRequest
+import com.google.android.libraries.identity.googleid.GetGoogleIdOption
+import com.google.android.libraries.identity.googleid.GoogleIdTokenCredential
+import kotlinx.coroutines.launch
+
+@SuppressLint("CoroutineCreationDuringComposition")
+@Composable
+fun LoginScreen() {
+    // TODO 서버 api 개발완료 후 viewmodel 연동 및 아키텍처 구축
+
+    Text(text = "로그인 테스트 화면")
+    val coroutineScope = rememberCoroutineScope()
+
+    val context = LocalContext.current
+    val credentialManager = CredentialManager.create(context)
+
+    val googleIdOption: GetGoogleIdOption = GetGoogleIdOption.Builder()
+        .setFilterByAuthorizedAccounts(false)
+        .setServerClientId(BuildConfig.WEB_CLIENT_ID)
+        .setAutoSelectEnabled(true)
+        .build()
+
+    val request: GetCredentialRequest = GetCredentialRequest.Builder()
+        .addCredentialOption(googleIdOption)
+        .build()
+
+    coroutineScope.launch {
+        try {
+            val result = credentialManager.getCredential(
+                request = request,
+                context = context
+            )
+            val googleIdTokenCredential = GoogleIdTokenCredential.createFrom(result.credential.data)
+            val googleIdToken = googleIdTokenCredential.idToken
+            Log.d("success: ", googleIdToken)
+        } catch (e: Exception) {
+            Log.d("failed : ", e.message.toString())
+        }
+    }
+}