feat: 회원 탈퇴 기능 구현

android/app/src/main/java/com/now/naaga/data/remote/retrofit/service/AuthService.kt

@@ -4,11 +4,15 @@ import com.now.naaga.data.remote.dto.NaagaAuthDto
 import com.now.naaga.data.remote.dto.PlatformAuthDto
 import retrofit2.Response
 import retrofit2.http.Body
+import retrofit2.http.DELETE
 import retrofit2.http.POST
 
 interface AuthService {
     @POST("/auth")
     suspend fun requestAuth(
         @Body platformAuthDto: PlatformAuthDto,
     ): Response<NaagaAuthDto>
+
+    @DELETE("/auth/unlink")
+    suspend fun withdrawalMember(): Response<Unit>
 }

android/app/src/main/java/com/now/naaga/data/repository/DefaultAuthRepository.kt

@@ -6,13 +6,14 @@ import com.now.naaga.data.local.AuthDataSource
 import com.now.naaga.data.mapper.toDto
 import com.now.naaga.data.remote.retrofit.ServicePool.authService
 import com.now.naaga.util.getValueOrThrow
+import com.now.naaga.util.unlinkWithKakao
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 class DefaultAuthRepository(
     private val authDataSource: AuthDataSource,
-    private val dispatcher: CoroutineDispatcher = Dispatchers.IO
+    private val dispatcher: CoroutineDispatcher = Dispatchers.IO,
 ) : AuthRepository {
 
     override suspend fun getToken(platformAuth: PlatformAuth): Boolean {
@@ -27,4 +28,9 @@ class DefaultAuthRepository(
             return@withContext false
         }
     }
+
+    override suspend fun withdrawalMember() {
+        authService.withdrawalMember()
+        unlinkWithKakao()
+    }
 }

android/app/src/main/java/com/now/naaga/presentation/login/LoginActivity.kt

@@ -2,6 +2,8 @@ package com.now.naaga.presentation.login
 
 import android.content.Context
 import android.content.Intent
+import android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK
+import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 import android.os.Bundle
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
@@ -75,5 +77,12 @@ class LoginActivity : AppCompatActivity(), AnalyticsDelegate by DefaultAnalytics
         fun getIntent(context: Context): Intent {
             return Intent(context, LoginActivity::class.java)
         }
+
+        fun getIntentWithTop(context: Context): Intent {
+            return Intent(context, LoginActivity::class.java).apply {
+                addFlags(FLAG_ACTIVITY_NEW_TASK)
+                addFlags(FLAG_ACTIVITY_CLEAR_TASK)
+            }
+        }
     }
 }

android/app/src/main/java/com/now/naaga/presentation/setting/SettingActivity.kt

@@ -3,9 +3,14 @@ package com.now.naaga.presentation.setting
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
+import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.ViewModelProvider
+import com.now.naaga.R
+import com.now.naaga.data.throwable.DataThrowable
 import com.now.naaga.databinding.ActivitySettingBinding
+import com.now.naaga.presentation.login.LoginActivity
+import com.now.naaga.presentation.onadventure.NaagaAlertDialog
 
 class SettingActivity : AppCompatActivity() {
     private lateinit var binding: ActivitySettingBinding
@@ -17,6 +22,7 @@ class SettingActivity : AppCompatActivity() {
         setContentView(binding.root)
         initViewModel()
         setClickListeners()
+        subscribe()
     }
 
     private fun initViewModel() {
@@ -28,9 +34,54 @@ class SettingActivity : AppCompatActivity() {
         binding.ivSettingBack.setOnClickListener {
             finish()
         }
+
+        binding.tvSettingUnlink.setOnClickListener {
+            showWithdrawalDialog()
+        }
+    }
+
+    private fun subscribe() {
+        viewModel.withdrawalStatus.observe(this) { status ->
+            if (status == true) {
+                shortToast(getString(R.string.setting_withdrawal_success_message))
+                navigateLogin()
+            }
+        }
+
+        viewModel.errorMessage.observe(this) { error: DataThrowable ->
+            when (error.code) {
+                WRONG_AUTH_ERROR_CODE -> shortToast(getString(R.string.setting_wrong_error_message))
+                EXPIRATION_AUTH_ERROR_CODE -> shortToast(getString(R.string.setting_expiration_error_message))
+            }
+        }
+    }
+
+    private fun navigateLogin() {
+        startActivity(LoginActivity.getIntentWithTop(this))
+        finish()
+    }
+
+    private fun shortToast(message: String) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show()
+    }
+
+    private fun showWithdrawalDialog() {
+        NaagaAlertDialog.Builder().build(
+            title = getString(R.string.withdrawal_dialog_title),
+            description = getString(R.string.withdrawal_dialog_description),
+            positiveText = getString(R.string.withdrawal_dialog_negative),
+            negativeText = getString(R.string.withdrawal_dialog_positive),
+            positiveAction = { },
+            negativeAction = { viewModel.withdrawalMember() },
+        ).show(supportFragmentManager, WITHDRAWAL)
     }
 
     companion object {
+        private const val WITHDRAWAL = "WITHDRAWAL"
+
+        private const val WRONG_AUTH_ERROR_CODE = 101
+        private const val EXPIRATION_AUTH_ERROR_CODE = 102
+
         fun getIntent(context: Context): Intent {
             return Intent(context, SettingActivity::class.java)
         }

android/app/src/main/java/com/now/naaga/presentation/setting/SettingViewModel.kt

@@ -1,13 +1,32 @@
 package com.now.naaga.presentation.setting
 
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
 import com.now.domain.repository.AuthRepository
 import com.now.naaga.NaagaApplication.DependencyContainer.authDataSource
 import com.now.naaga.data.repository.DefaultAuthRepository
+import com.now.naaga.data.throwable.DataThrowable
+import kotlinx.coroutines.launch
 
 class SettingViewModel(private val authRepository: AuthRepository) : ViewModel() {
 
+    private val _withdrawalStatus = MutableLiveData<Boolean>()
+    val withdrawalStatus: LiveData<Boolean> = _withdrawalStatus
+
+    private val _errorMessage = MutableLiveData<DataThrowable>()
+    val errorMessage: LiveData<DataThrowable> = _errorMessage
+
+    fun withdrawalMember() {
+        viewModelScope.launch {
+            runCatching { authRepository.withdrawalMember() }
+                .onSuccess { _withdrawalStatus.value = true }
+                .onFailure { _errorMessage.value = it as DataThrowable }
+        }
+    }
+
     companion object {
         val Factory = SettingFactory(DefaultAuthRepository(authDataSource))
 

android/app/src/main/java/com/now/naaga/util/KakaoLoginUtil.kt

@@ -7,9 +7,11 @@ import com.kakao.sdk.common.model.ClientError
 import com.kakao.sdk.common.model.ClientErrorCause
 import com.kakao.sdk.user.UserApiClient
 
-private const val KAKAO_LOGIN_LOG_TAG = "kakao login"
+const val KAKAO_LOGIN_LOG_TAG = "kakao login"
 private const val KAKAO_LOGIN_FAIL_MESSAGE = "카카오계정으로 로그인 실패"
 private const val KAKAO_LOGIN_SUCCESS_MESSAGE = "카카오계정으로 로그인 성공"
+private const val KAKAO_UNLINK_FAIL_MESSAGE = "연결 끊기 실패"
+private const val KAKAO_UNLINK_SUCCESS_MESSAGE = "연결 끊기 성공. SDK에서 토큰 삭제 됨"
 
 private fun getLoginCallback(doNextAction: (token: String) -> Unit): (OAuthToken?, Throwable?) -> Unit {
     val callback: (OAuthToken?, Throwable?) -> Unit = { token, error ->
@@ -50,3 +52,13 @@ fun loginWithKakao(context: Context, doNextAction: (token: String) -> Unit) {
         UserApiClient.instance.loginWithKakaoAccount(context, callback = callback)
     }
 }
+
+fun unlinkWithKakao() {
+    UserApiClient.instance.unlink { error ->
+        if (error != null) {
+            Log.e(KAKAO_LOGIN_LOG_TAG, KAKAO_UNLINK_FAIL_MESSAGE, error)
+        } else {
+            Log.i(KAKAO_LOGIN_LOG_TAG, KAKAO_UNLINK_SUCCESS_MESSAGE)
+        }
+    }
+}

android/app/src/main/res/values/strings.xml

@@ -105,4 +105,15 @@
     <string name="upload_error_already_exists_nearby_message">근방에 다른 미션장소가 존재해서 추가할 수 없어요!</string>
     <string name="upload_error_post_message">전송에 실패했어요! 다시 시도해주세요!</string>
     <string name="upload_error_insufficient_info_message">모든 정보를 입력해주세요.</string>
+
+    <!-- SettingActivity -->
+    <string name="setting_withdrawal_success_message">"성공적으로 회원 탈퇴 되었습니다."</string>
+    <string name="setting_wrong_error_message">"인증 정보가 잘 못 되었어요!"</string>
+    <string name="setting_expiration_error_message">"인증 정보가 만료 되었어요!"</string>
+
+    <!-- Withdrawal Dialog -->
+    <string name="withdrawal_dialog_title">정말 회원 탈퇴를 하시겠습니까?</string>
+    <string name="withdrawal_dialog_description">나아가와 함께 즐거운 모험을 계속해보세요!</string>
+    <string name="withdrawal_dialog_positive">네</string>
+    <string name="withdrawal_dialog_negative">아니요</string>
 </resources>

android/domain/src/main/java/com/now/domain/repository/AuthRepository.kt

@@ -6,4 +6,6 @@ interface AuthRepository {
     suspend fun getToken(
         platformAuth: PlatformAuth,
     ): Boolean
+
+    suspend fun withdrawalMember()
 }