fix: 피드 <-> 피드 상세 간 좋아요 싱크 맞지 않는 이슈

app/src/main/java/com/into/websoso/ui/feedDetail/FeedDetailActivity.kt

@@ -81,6 +81,7 @@ class FeedDetailActivity : BaseActivity<ActivityFeedDetailBinding>(activity_feed
     private enum class MenuType { COMMENT, FEED }
 
     private val feedId: Long by lazy { intent.getLongExtra(FEED_ID, DEFAULT_FEED_ID) }
+    private val isLiked: Boolean by lazy { intent.getBooleanExtra(FEED_LIKE_STATUS, false) }
     private val feedDetailViewModel: FeedDetailViewModel by viewModels()
     private val feedDetailAdapter: FeedDetailAdapter by lazy {
         FeedDetailAdapter(
@@ -119,7 +120,7 @@ class FeedDetailActivity : BaseActivity<ActivityFeedDetailBinding>(activity_feed
                     updatedLikeCount.toString()
                 view.isSelected = !view.isSelected
 
-                singleEventHandler.debounce(coroutineScope = lifecycleScope) {
+                singleEventHandler.debounce(timeMillis = 100L, coroutineScope = lifecycleScope) {
                     tracker.trackEvent("feed_detail_like")
                     feedDetailViewModel.updateLike(view.isSelected, updatedLikeCount)
                 }
@@ -408,7 +409,24 @@ class FeedDetailActivity : BaseActivity<ActivityFeedDetailBinding>(activity_feed
         binding.root.setOnClickListener { it.hideKeyboard() }
 
         binding.ivFeedDetailBackButton.setOnClickListener {
-            setResult(FeedDetailBack.RESULT_OK)
+            val intent = Intent().apply {
+                putExtra(FEED_ID, feedId)
+                putExtra(
+                    FEED_DETAIL_LIKE_STATUS,
+                    feedDetailViewModel.feedDetailUiState.value
+                        ?.feedDetail
+                        ?.feed
+                        ?.isLiked,
+                )
+                putExtra(
+                    FEED_LIKE_COUNT,
+                    feedDetailViewModel.feedDetailUiState.value
+                        ?.feedDetail
+                        ?.feed
+                        ?.likeCount,
+                )
+            }
+            setResult(FeedDetailBack.RESULT_OK, intent)
             if (!isFinishing) finish()
         }
 
@@ -444,7 +462,7 @@ class FeedDetailActivity : BaseActivity<ActivityFeedDetailBinding>(activity_feed
 
     private fun setupView() {
         setupRefreshView()
-        feedDetailViewModel.updateFeedDetail(feedId, Feed)
+        feedDetailViewModel.updateFeedDetail(feedId, Feed, isLiked)
         binding.rvFeedDetail.apply {
             adapter = feedDetailAdapter
             itemAnimator = null
@@ -551,18 +569,23 @@ class FeedDetailActivity : BaseActivity<ActivityFeedDetailBinding>(activity_feed
 
     companion object {
         const val FEED_ID: String = "FEED_ID"
+        const val FEED_DETAIL_LIKE_STATUS: String = "FEED_DETAIL_LIKE_STATUS"
+        const val FEED_LIKE_COUNT: String = "FEED_LIKE_COUNT"
         private const val DEFAULT_FEED_ID: Long = -1
         private const val NOTIFICATION_ID: String = "NOTIFICATION_ID"
+        private const val FEED_LIKE_STATUS: String = "FEED_LIKE_STATUS"
         private const val LOTTIE_IMAGE = "lottie_websoso_loading.json"
 
         fun getIntent(
             context: Context,
             feedId: Long,
             notificationId: Long? = null,
+            isLiked: Boolean = false,
         ): Intent =
             Intent(context, FeedDetailActivity::class.java).apply {
                 putExtra(FEED_ID, feedId)
                 putExtra(NOTIFICATION_ID, notificationId)
+                putExtra(FEED_LIKE_STATUS, isLiked)
             }
     }
 }

app/src/main/java/com/into/websoso/ui/feedDetail/FeedDetailViewModel.kt

@@ -44,6 +44,7 @@ class FeedDetailViewModel
         fun updateFeedDetail(
             feedId: Long,
             from: ResultFrom,
+            isLiked: Boolean = false,
         ) {
             this.feedId = feedId
             feedDetailUiState.value?.let { feedDetailUiState ->
@@ -64,11 +65,26 @@ class FeedDetailViewModel
                         val feed = (result[1] as FeedEntity)
                         val comments = result[2] as CommentsEntity
 
+                        val uiFeed = feed.toUi()
+                        val updatedFeed = if (feed.isLiked == isLiked) {
+                            uiFeed
+                        } else if (!isLiked && feed.isLiked) {
+                            uiFeed.copy(
+                                isLiked = false,
+                                likeCount = feed.likeCount - 1,
+                            )
+                        } else {
+                            uiFeed.copy(
+                                isLiked = true,
+                                likeCount = feed.likeCount + 1,
+                            )
+                        }
+
                         _feedDetailUiState.value = feedDetailUiState.copy(
                             loading = false,
                             isRefreshed = true,
                             feedDetail = FeedDetailModel(
-                                feed = feed.toUi(),
+                                feed = updatedFeed,
                                 comments = comments.comments.map { it.toUi() },
                                 user = FeedDetailModel.UserModel(
                                     avatarImage = myProfile.avatarImage,

app/src/main/java/com/into/websoso/ui/main/feed/FeedFragment.kt

@@ -26,6 +26,7 @@ import com.into.websoso.core.common.ui.base.BaseFragment
 import com.into.websoso.core.common.ui.custom.WebsosoChip
 import com.into.websoso.core.common.ui.model.ResultFrom.BlockUser
 import com.into.websoso.core.common.ui.model.ResultFrom.CreateFeed
+import com.into.websoso.core.common.ui.model.ResultFrom.FeedDetailBack
 import com.into.websoso.core.common.ui.model.ResultFrom.FeedDetailError
 import com.into.websoso.core.common.ui.model.ResultFrom.FeedDetailRefreshed
 import com.into.websoso.core.common.ui.model.ResultFrom.FeedDetailRemoved
@@ -51,7 +52,9 @@ import com.into.websoso.databinding.FragmentFeedBinding
 import com.into.websoso.databinding.MenuFeedPopupBinding
 import com.into.websoso.ui.createFeed.CreateFeedActivity
 import com.into.websoso.ui.feedDetail.FeedDetailActivity
+import com.into.websoso.ui.feedDetail.FeedDetailActivity.Companion.FEED_DETAIL_LIKE_STATUS
 import com.into.websoso.ui.feedDetail.FeedDetailActivity.Companion.FEED_ID
+import com.into.websoso.ui.feedDetail.FeedDetailActivity.Companion.FEED_LIKE_COUNT
 import com.into.websoso.ui.feedDetail.model.EditFeedModel
 import com.into.websoso.ui.main.feed.adapter.FeedAdapter
 import com.into.websoso.ui.main.feed.adapter.FeedType.Feed
@@ -148,6 +151,18 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(fragment_feed) {
                     icon = ic_blocked_user_snack_bar,
                 )
             }
+
+            FeedDetailBack.RESULT_OK -> {
+                val updatedFeedId: Long = result.data?.getLongExtra(FEED_ID, -1) ?: -1
+                val updatedLikeStatus: Boolean =
+                    result.data?.getBooleanExtra(FEED_DETAIL_LIKE_STATUS, false) ?: false
+                val updatedLikeCount: Int = result.data?.getIntExtra(FEED_LIKE_COUNT, 0) ?: 0
+                feedViewModel.updateLikedSync(
+                    selectedFeedId = updatedFeedId,
+                    isLiked = updatedLikeStatus,
+                    updatedLikeCount = updatedLikeCount,
+                )
+            }
         }
     }
 
@@ -178,8 +193,11 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(fragment_feed) {
                 singleEventHandler.throttleFirst { showMenu(view, feedId, isMyFeed) }
             }
 
-            override fun onContentClick(feedId: Long) {
-                singleEventHandler.throttleFirst(300) { navigateToFeedDetail(feedId) }
+            override fun onContentClick(
+                feedId: Long,
+                isLiked: Boolean,
+            ) {
+                singleEventHandler.throttleFirst(300) { navigateToFeedDetail(feedId, isLiked) }
             }
 
             override fun onNovelInfoClick(novelId: Long) {
@@ -192,11 +210,12 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(fragment_feed) {
                 id: Long,
             ) {
                 tracker.trackEvent("feed_like")
-                val likeCount: Int = view
-                    .findViewById<TextView>(tv_feed_thumb_up_count)
-                    .text
-                    .toString()
-                    .toInt()
+                val likeCount: Int =
+                    view
+                        .findViewById<TextView>(tv_feed_thumb_up_count)
+                        .text
+                        .toString()
+                        .toInt()
                 val updatedLikeCount: Int = when (view.isSelected) {
                     true -> if (likeCount > 0) likeCount - 1 else 0
                     false -> likeCount + 1
@@ -206,7 +225,7 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(fragment_feed) {
                     updatedLikeCount.toString()
                 view.isSelected = !view.isSelected
 
-                singleEventHandler.debounce(coroutineScope = lifecycleScope) {
+                singleEventHandler.debounce(timeMillis = 100L, coroutineScope = lifecycleScope) {
                     feedViewModel.updateLike(id, view.isSelected, updatedLikeCount)
                 }
             }
@@ -351,8 +370,17 @@ class FeedFragment : BaseFragment<FragmentFeedBinding>(fragment_feed) {
         activityResultCallback.launch(CreateFeedActivity.getIntent(requireContext(), feedContent))
     }
 
-    private fun navigateToFeedDetail(feedId: Long) {
-        activityResultCallback.launch(FeedDetailActivity.getIntent(requireContext(), feedId))
+    private fun navigateToFeedDetail(
+        feedId: Long,
+        isLiked: Boolean,
+    ) {
+        activityResultCallback.launch(
+            FeedDetailActivity.getIntent(
+                context = requireContext(),
+                feedId = feedId,
+                isLiked = isLiked,
+            ),
+        )
     }
 
     private fun navigateToNovelDetail(novelId: Long) {

app/src/main/java/com/into/websoso/ui/main/feed/FeedItemClickListener.kt

@@ -14,7 +14,10 @@ interface FeedItemClickListener {
         isMyFeed: Boolean,
     )
 
-    fun onContentClick(feedId: Long)
+    fun onContentClick(
+        feedId: Long,
+        isLiked: Boolean,
+    )
 
     fun onNovelInfoClick(novelId: Long)
 

app/src/main/java/com/into/websoso/ui/main/feed/FeedViewModel.kt

@@ -200,6 +200,26 @@ class FeedViewModel
             }
         }
 
+        fun updateLikedSync(
+            selectedFeedId: Long,
+            isLiked: Boolean,
+            updatedLikeCount: Int,
+        ) {
+            _feedUiState.value = feedUiState.value?.copy(
+                feeds = feedUiState.value?.feeds?.map { feedModel ->
+                    when (feedModel.id == selectedFeedId) {
+                        true -> feedModel.copy(
+                            isLiked = isLiked,
+                            likeCount = updatedLikeCount,
+                        )
+
+                        false -> feedModel
+                    }
+                } ?: emptyList(),
+                isRefreshed = false,
+            )
+        }
+
         fun updateReportedSpoilerFeed(feedId: Long) {
             feedUiState.value?.let { feedUiState ->
                 viewModelScope.launch {

app/src/main/java/com/into/websoso/ui/novelFeed/NovelFeedFragment.kt

@@ -102,8 +102,11 @@ class NovelFeedFragment : BaseFragment<FragmentNovelFeedBinding>(R.layout.fragme
                 showMenu(view, feedId, isMyFeed)
             }
 
-            override fun onContentClick(feedId: Long) {
-                navigateToFeedDetail(feedId)
+            override fun onContentClick(
+                feedId: Long,
+                isLiked: Boolean,
+            ) {
+                navigateToFeedDetail(feedId, isLiked)
             }
 
             override fun onNovelInfoClick(novelId: Long) {
@@ -252,12 +255,21 @@ class NovelFeedFragment : BaseFragment<FragmentNovelFeedBinding>(R.layout.fragme
         activityResultCallback.launch(CreateFeedActivity.getIntent(requireContext(), feedContent))
     }
 
-    private fun navigateToFeedDetail(feedId: Long) {
+    private fun navigateToFeedDetail(
+        feedId: Long,
+        isLiked: Boolean,
+    ) {
         if (novelFeedViewModel.isLogin.value == false) {
             showLoginRequestDialog()
             return
         }
-        startActivity(FeedDetailActivity.getIntent(requireContext(), feedId))
+        startActivity(
+            FeedDetailActivity.getIntent(
+                context = requireContext(),
+                feedId = feedId,
+                isLiked = isLiked,
+            ),
+        )
     }
 
     override fun onViewCreated(

app/src/main/res/layout/item_feed.xml

@@ -18,7 +18,7 @@
     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:onClick="@{() -> onClick.onContentClick(feed.id)}">
+        android:onClick="@{() -> onClick.onContentClick(feed.id, feed.isLiked)}">
 
         <androidx.constraintlayout.widget.ConstraintLayout
             android:id="@+id/cl_feed_profile"
@@ -98,7 +98,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:onClick="@{() -> onClick.onContentClick(feed.id)}"
+            android:onClick="@{() -> onClick.onContentClick(feed.id, feed.isLiked)}"
             android:text="@string/feed_spoiler_warning"
             android:textAppearance="@style/body2"
             android:textColor="@color/secondary_100_FF675D"