[Feat] 구글 소셜 로그인 구현

app/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.serialization)
     id("com.google.dagger.hilt.android")
+    id("com.google.gms.google-services")
     kotlin("kapt")
 }
 
@@ -27,6 +28,10 @@ android {
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
         buildConfigField("String", "BASE_URL", "\"${properties["BASE_URL"]}\"")
+        buildConfigField("String", "NATIVE_APP_KEY", "\"${properties["NATIVE_APP_KEY"]}\"")
+        manifestPlaceholders += mapOf(
+            "NATIVE_APP_KEY" to properties["NATIVE_APP_KEY"] as String
+        )
     }
 
     buildTypes {
@@ -68,6 +73,7 @@ dependencies {
     implementation(libs.kotlinx.serialization.json)
     implementation(libs.coil.compose)
     implementation(libs.foundation)
+    implementation(libs.androidx.lifecycle.runtime.compose)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
@@ -90,6 +96,17 @@ dependencies {
 // OkHttp
     implementation(libs.okhttp)
     implementation(libs.logging.interceptor)
+
+// 카카오 로그인 SDK
+    implementation("com.kakao.sdk:v2-all:2.21.6")
+
+// 토큰 저장을 위한 DataStore
+    implementation ("androidx.datastore:datastore-preferences:1.1.1")
+
+// 구글 로그인
+    implementation(platform("com.google.firebase:firebase-bom:34.1.0"))
+    implementation("com.google.firebase:firebase-auth")
+    implementation("com.google.android.gms:play-services-auth:21.2.0")
 }
 
 kapt {

app/google-services.json

@@ -0,0 +1,47 @@
+{
+  "project_info": {
+    "project_number": "353417813537",
+    "project_id": "thip-3a698",
+    "storage_bucket": "thip-3a698.firebasestorage.app"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:353417813537:android:69029c2bc957df7fab4d60",
+        "android_client_info": {
+          "package_name": "com.texthip.thip"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "353417813537-lovs0p2tb9kjnjlp493a7098ov0cb2bu.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "com.texthip.thip",
+            "certificate_hash": "99315de9382f8b2903131eb4ae926a4739803ef1"
+          }
+        },
+        {
+          "client_id": "353417813537-ck9g1v0qprlb5nf4dvasinim403eng0f.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyCFzpbeT-8JQCGxiSKuVXMvcNNYFtl6Fuo"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "353417813537-ck9g1v0qprlb5nf4dvasinim403eng0f.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

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:name=".ThipApplication"
         android:allowBackup="true"
@@ -13,6 +15,25 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Thip"
         tools:targetApi="31">
+
+        <meta-data
+            android:name="com.kakao.sdk.AppKey"
+            android:value="${NATIVE_APP_KEY}" />
+
+        <activity
+            android:name="com.kakao.sdk.auth.AuthCodeHandlerActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data android:host="oauth"
+                    android:scheme="kakao${NATIVE_APP_KEY}" />
+
+            </intent-filter>
+        </activity>
+
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -25,5 +46,4 @@
             </intent-filter>
         </activity>
     </application>
-
 </manifest>

app/src/main/java/com/texthip/thip/MainActivity.kt

@@ -4,14 +4,20 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
-import androidx.compose.foundation.layout.Column
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import com.texthip.thip.ui.navigator.navigations.commonNavigation
+import com.texthip.thip.ui.navigator.navigations.feedNavigation
+import com.texthip.thip.ui.navigator.navigations.groupNavigation
+import com.texthip.thip.ui.navigator.navigations.myPageNavigation
+import com.texthip.thip.ui.navigator.navigations.searchNavigation
+import com.texthip.thip.ui.navigator.routes.CommonRoutes
+import com.texthip.thip.ui.signin.screen.LoginScreen
+import com.texthip.thip.ui.signin.screen.SigninNicknameScreen
+import com.texthip.thip.ui.signin.screen.SplashScreen
 import com.texthip.thip.ui.theme.ThipTheme
-import com.texthip.thip.ui.theme.ThipTheme.colors
-import com.texthip.thip.ui.theme.ThipTheme.typography
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
@@ -21,63 +27,40 @@ class MainActivity : ComponentActivity() {
         enableEdgeToEdge()
         setContent {
             ThipTheme {
-                /*Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
-                    Greeting(
-                        name = "Android",
-                        modifier = Modifier.padding(innerPadding)
-                    )
-                }*/
-                MainScreen()
+                RootNavHost()
             }
         }
     }
 }
-
 @Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Column {
-        Text(
-            text = "Hello $name!",
-            modifier = modifier,
-            style = typography.bigtitle_b700_s22_h24,
-            color = colors.Purple,
-        )
-
-        Text(
-            text = "Hello $name!",
-            modifier = modifier,
-            style = typography.smalltitle_sb600_s16_h20,
-            color = colors.NeonGreen,
-        )
-
-        Text(
-            text = "Hello $name!",
-            modifier = modifier,
-            style = typography.menu_sb600_s12,
-            color = colors.Red,
-        )
+fun RootNavHost() {
+    val navController = rememberNavController()
+    NavHost(
+        navController = navController,
+        startDestination = CommonRoutes.Splash
+    ) {
+        // --- 인증 관련 화면들 ---
+        composable<CommonRoutes.Splash> {
+            SplashScreen(navController = navController)
+        }
+        composable<CommonRoutes.Login> {
+            LoginScreen(navController = navController)
+        }
+        composable<CommonRoutes.Signup> {
+            SigninNicknameScreen(navController = navController)
+        }
 
-        Text(
-            text = "Hello $name!",
-            modifier = modifier,
-            style = typography.navi_m500_s10,
-            color = colors.DarkGrey,
+        // --- 메인 관련 화면들 ---
+        feedNavigation(navController)
+        groupNavigation(
+            navController = navController,
+            navigateBack = navController::popBackStack
         )
-
-        Text(
-            text = "Hello $name!",
-            modifier = modifier,
-            style = typography.view_r400_s11_h20,
-            color = colors.Black,
+        searchNavigation(navController)
+        myPageNavigation(navController)
+        commonNavigation(
+            navController = navController,
+            navigateBack = navController::popBackStack
         )
     }
-
-}
-
-@Preview(showBackground = true)
-@Composable
-fun GreetingPreview() {
-    ThipTheme {
-        Greeting("Android")
-    }
 }

app/src/main/java/com/texthip/thip/ThipApplication.kt

@@ -1,7 +1,21 @@
 package com.texthip.thip
 
+import com.kakao.sdk.common.KakaoSdk
 import android.app.Application
 import dagger.hilt.android.HiltAndroidApp
+import com.texthip.thip.BuildConfig
+
 
 @HiltAndroidApp
-class ThipApplication : Application()
+class ThipApplication : Application(){
+    override fun onCreate() {
+        super.onCreate()
+
+        // 카카오 SDK 초기화
+        try {
+            KakaoSdk.init(this, BuildConfig.NATIVE_APP_KEY)
+        }catch (e: Exception){
+            e.printStackTrace()
+        }
+    }
+}

app/src/main/java/com/texthip/thip/data/di/NetworkModule.kt

@@ -2,6 +2,7 @@ package com.texthip.thip.data.di
 
 import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory
 import com.texthip.thip.BuildConfig
+import com.texthip.thip.data.service.AuthService
 import com.texthip.thip.utils.auth.AuthInterceptor
 import dagger.Module
 import dagger.Provides

app/src/main/java/com/texthip/thip/data/di/ServiceModule.kt

@@ -1,5 +1,6 @@
 package com.texthip.thip.data.di
 
+import com.texthip.thip.data.service.AuthService
 import com.texthip.thip.data.service.BookService
 import com.texthip.thip.data.service.GroupService
 import com.texthip.thip.data.service.RoomsService
@@ -25,8 +26,15 @@ object ServiceModule {
     fun provideBookService(retrofit: Retrofit): BookService {
         return retrofit.create(BookService::class.java)
     }
+
     @Provides
     @Singleton
     fun providesRoomsService(retrofit: Retrofit): RoomsService =
         retrofit.create(RoomsService::class.java)
+
+    @Provides
+    @Singleton
+    fun provideAuthService(retrofit: Retrofit): AuthService {
+        return retrofit.create(AuthService::class.java)
+    }
 }

app/src/main/java/com/texthip/thip/data/manager/TokenManager.kt

@@ -0,0 +1,46 @@
+package com.texthip.thip.data.manager
+
+import android.content.Context
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.preferencesDataStore
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class TokenManager @Inject constructor(
+    @ApplicationContext private val context: Context
+) {
+    private val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "thip_auth_tokens")
+
+    companion object {
+        //토큰저장에 사용되는 키
+        private val APP_TOKEN_KEY = stringPreferencesKey("app_token")
+    }
+
+    //토큰 저장
+    suspend fun saveToken(token: String) {
+        context.dataStore.edit { prefs ->
+            prefs[APP_TOKEN_KEY] = token
+        }
+    }
+
+    //저장된 토큰을 Flow 형태로 불러옴
+    fun getToken(): Flow<String?> {
+        return context.dataStore.data.map { prefs ->
+            prefs[APP_TOKEN_KEY]
+        }
+    }
+
+    //저장된 토큰 삭제 (로그아웃 시?)
+    suspend fun deleteToken() {
+        context.dataStore.edit { prefs ->
+            prefs.remove(APP_TOKEN_KEY)
+        }
+    }
+}

app/src/main/java/com/texthip/thip/data/model/auth/request/AuthRequest.kt

@@ -0,0 +1,8 @@
+package com.texthip.thip.data.model.auth.request
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class AuthRequest(
+    @SerialName("oauth2Id") val oauth2Id: String
+)

app/src/main/java/com/texthip/thip/data/model/auth/response/AuthResponse.kt

@@ -0,0 +1,10 @@
+package com.texthip.thip.data.model.auth.response
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class AuthResponse(
+    @SerialName("token") val token: String,
+    @SerialName("isNewUser") val isNewUser: Boolean
+)