[BOOK-479] feat: 책 검색 결과 없을 경우, 카카오톡 채널 안내 및 채팅 이동 구현

easyhooon · easyhooon · commit c3ca0753e9a2 · 2025-12-24T16:02:28.000+09:00
diff --git a/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchPresenter.kt b/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchPresenter.kt
@@ -67,7 +67,7 @@ class BookSearchPresenter(
     override fun present(): BookSearchUiState {
         val scope = rememberCoroutineScope()
         val userState by authRepository.userState.collectAsRetainedState(initial = UserState.Guest)
-        var uiState by rememberRetained { mutableStateOf<UiState>(UiState.Idle) }
+        var searchUiState by rememberRetained { mutableStateOf<SearchUiState>(SearchUiState.Idle) }
         var footerState by rememberRetained { mutableStateOf<FooterState>(FooterState.Idle) }
         val queryState = rememberTextFieldState()
         val recentSearches by repository.bookRecentSearches.collectAsRetainedState(initial = emptyList())
@@ -86,7 +86,7 @@ class BookSearchPresenter(
         fun searchBooks(query: String, startIndex: Int = START_INDEX) {
             scope.launch {
                 if (startIndex == START_INDEX) {
-                    uiState = UiState.Loading
+                    searchUiState = SearchUiState.Loading
                 } else {
                     footerState = FooterState.Loading
                 }
@@ -108,7 +108,7 @@ class BookSearchPresenter(
                         isLastPage = result.lastPage
 
                         if (startIndex == START_INDEX) {
-                            uiState = UiState.Success
+                            searchUiState = SearchUiState.Success
                             analyticsHelper.logEvent(SEARCH_BOOK_RESULT)
                         } else {
                             footerState = if (isLastPage) FooterState.End else FooterState.Idle
@@ -119,7 +119,7 @@ class BookSearchPresenter(
                         analyticsHelper.logEvent(ERROR_SEARCH_LOADING)
                         val errorMessage = exception.message ?: "알 수 없는 오류가 발생했습니다."
                         if (startIndex == START_INDEX) {
-                            uiState = UiState.Error(exception)
+                            searchUiState = SearchUiState.Error(exception)
                         } else {
                             footerState = FooterState.Error(errorMessage)
                         }
@@ -260,6 +260,10 @@ class BookSearchPresenter(
                 is BookSearchUiEvent.OnBookRegisterSuccessCancelButtonClick -> {
                     isBookRegisterSuccessBottomSheetVisible = false
                 }
+
+                is BookSearchUiEvent.OnInquireClick -> {
+                    sideEffect = BookSearchSideEffect.NavigateToKakaoTalkChannel
+                }
             }
         }
 
@@ -268,7 +272,7 @@ class BookSearchPresenter(
         }
 
         return BookSearchUiState(
-            uiState = uiState,
+            searchUiState = searchUiState,
             footerState = footerState,
             queryState = queryState,
             recentSearches = recentSearches.toImmutableList(),
diff --git a/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchUi.kt b/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchUi.kt
@@ -24,6 +24,9 @@ import com.ninecraft.booket.core.common.constants.BookStatus
 import com.ninecraft.booket.core.common.extensions.toErrorType
 import com.ninecraft.booket.core.designsystem.DevicePreview
 import com.ninecraft.booket.core.designsystem.component.ReedDivider
+import com.ninecraft.booket.core.designsystem.component.button.ReedButton
+import com.ninecraft.booket.core.designsystem.component.button.ReedButtonColorStyle
+import com.ninecraft.booket.core.designsystem.component.button.smallButtonStyle
 import com.ninecraft.booket.core.designsystem.component.textfield.ReedTextField
 import com.ninecraft.booket.core.designsystem.theme.ReedTheme
 import com.ninecraft.booket.core.designsystem.theme.White
@@ -114,19 +117,19 @@ internal fun BookSearchContent(
         ReedDivider()
         Spacer(modifier = Modifier.height(ReedTheme.spacing.spacing2))
 
-        when (state.uiState) {
-            is UiState.Loading -> {
+        when (state.searchUiState) {
+            is SearchUiState.Loading -> {
                 ReedLoadingIndicator()
             }
 
-            is UiState.Error -> {
+            is SearchUiState.Error -> {
                 ReedErrorUi(
-                    errorType = state.uiState.exception.toErrorType(),
+                    errorType = state.searchUiState.exception.toErrorType(),
                     onRetryClick = { state.eventSink(BookSearchUiEvent.OnRetryClick) },
                 )
             }
 
-            is UiState.Idle -> {
+            is SearchUiState.Idle -> {
                 if (state.recentSearches.isEmpty()) {
                     Box(
                         modifier = Modifier.fillMaxSize(),
@@ -173,17 +176,33 @@ internal fun BookSearchContent(
                 }
             }
 
-            is UiState.Success -> {
+            is SearchUiState.Success -> {
                 if (state.isEmptySearchResult) {
                     Box(
                         modifier = Modifier.fillMaxSize(),
                         contentAlignment = Alignment.Center,
                     ) {
-                        Text(
-                            text = stringResource(R.string.empty_results),
-                            color = ReedTheme.colors.contentSecondary,
-                            style = ReedTheme.typography.body1Medium,
-                        )
+                        Column(
+                            horizontalAlignment = Alignment.CenterHorizontally,
+                        ) {
+                            Text(
+                                text = stringResource(R.string.empty_results_title),
+                                color = ReedTheme.colors.contentPrimary,
+                                style = ReedTheme.typography.headline1SemiBold,
+                            )
+                            Text(
+                                text = stringResource(R.string.empty_results_description),
+                                color = ReedTheme.colors.contentSecondary,
+                                style = ReedTheme.typography.body1Medium,
+                            )
+                            Spacer(modifier = Modifier.height(ReedTheme.spacing.spacing4))
+                            ReedButton(
+                                onClick = { state.eventSink(BookSearchUiEvent.OnInquireClick) },
+                                text = stringResource(R.string.inquire),
+                                sizeStyle = smallButtonStyle,
+                                colorStyle = ReedButtonColorStyle.SECONDARY,
+                            )
+                        }
                     }
                 } else {
                     Row(
@@ -294,7 +313,7 @@ internal fun BookSearchContent(
 
 @DevicePreview
 @Composable
-private fun BookSearchPreview() {
+private fun BookRecentSearchPreview() {
     ReedTheme {
         BookSearchUi(
             state = BookSearchUiState(
@@ -303,3 +322,16 @@ private fun BookSearchPreview() {
         )
     }
 }
+
+@DevicePreview
+@Composable
+private fun BookSearchEmptyResultPreview() {
+    ReedTheme {
+        BookSearchContent(
+            state = BookSearchUiState(
+                searchUiState = SearchUiState.Success,
+                eventSink = {},
+            ),
+        )
+    }
+}
diff --git a/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchUiState.kt b/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/BookSearchUiState.kt
@@ -14,15 +14,15 @@ import kotlinx.collections.immutable.persistentListOf
 import java.util.UUID
 
 @Immutable
-sealed interface UiState {
-    data object Idle : UiState
-    data object Loading : UiState
-    data object Success : UiState
-    data class Error(val exception: Throwable) : UiState
+sealed interface SearchUiState {
+    data object Idle : SearchUiState
+    data object Loading : SearchUiState
+    data object Success : SearchUiState
+    data class Error(val exception: Throwable) : SearchUiState
 }
 
 data class BookSearchUiState(
-    val uiState: UiState = UiState.Idle,
+    val searchUiState: SearchUiState = SearchUiState.Idle,
     val footerState: FooterState = FooterState.Idle,
     val queryState: TextFieldState = TextFieldState(),
     val recentSearches: ImmutableList<String> = persistentListOf(),
@@ -37,7 +37,7 @@ data class BookSearchUiState(
     val sideEffect: BookSearchSideEffect? = null,
     val eventSink: (BookSearchUiEvent) -> Unit,
 ) : CircuitUiState {
-    val isEmptySearchResult: Boolean get() = uiState is UiState.Success && searchResult.totalResults == 0
+    val isEmptySearchResult: Boolean get() = searchUiState is SearchUiState.Success && searchResult.totalResults == 0
 }
 
 @Immutable
@@ -46,6 +46,8 @@ sealed interface BookSearchSideEffect {
         val message: UiText,
         private val key: String = UUID.randomUUID().toString(),
     ) : BookSearchSideEffect
+
+    data object NavigateToKakaoTalkChannel : BookSearchSideEffect
 }
 
 sealed interface BookSearchUiEvent : CircuitUiEvent {
@@ -64,4 +66,5 @@ sealed interface BookSearchUiEvent : CircuitUiEvent {
     data object OnBookRegisterButtonClick : BookSearchUiEvent
     data object OnBookRegisterSuccessOkButtonClick : BookSearchUiEvent
     data object OnBookRegisterSuccessCancelButtonClick : BookSearchUiEvent
+    data object OnInquireClick : BookSearchUiEvent
 }
diff --git a/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/HandleBookSearchSideEffect.kt b/feature/search/src/main/kotlin/com/ninecraft/booket/feature/search/book/HandleBookSearchSideEffect.kt
@@ -3,6 +3,8 @@ package com.ninecraft.booket.feature.search.book
 import android.widget.Toast
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalUriHandler
+import com.ninecraft.booket.feature.search.BuildConfig
 import com.skydoves.compose.effects.RememberedEffect
 
 @Composable
@@ -11,13 +13,18 @@ internal fun HandleBookSearchSideEffects(
     eventSink: (BookSearchUiEvent) -> Unit,
 ) {
     val context = LocalContext.current
+    val uriHandler = LocalUriHandler.current
 
     RememberedEffect(state.sideEffect) {
         when (state.sideEffect) {
             is BookSearchSideEffect.ShowToast -> {
                 Toast.makeText(context, state.sideEffect.message.asString(context), Toast.LENGTH_SHORT).show()
             }
 
+            is BookSearchSideEffect.NavigateToKakaoTalkChannel -> {
+                uriHandler.openUri(BuildConfig.REED_KAKAOTALK_CHANNEL_URL)
+            }
+
             null -> {}
         }
 
diff --git a/feature/search/src/main/res/values/strings.xml b/feature/search/src/main/res/values/strings.xml
@@ -5,7 +5,9 @@
     <string name="search_result_suffix">개</string>
     <string name="recent_search">최근 검색어</string>
     <string name="error_message">오류가 발생했습니다</string>
-    <string name="empty_results">검색어와 일치하는 도서가 없습니다</string>
+    <string name="empty_results_title">아직 등록된 책이 없어요</string>
+    <string name="empty_results_description">카카오톡 채널로 문의를 남겨주세요</string>
+    <string name="inquire">문의하기</string>
     <string name="book_register_title">등록 옵션</string>
     <string name="book_register_success_title">도서가 등록되었어요!</string>
     <string name="book_register_success_description">독서 기록을 바로 시작할까요?</string>
