Implement feature that displays results according to search input text

app-android/src/main/java/io/github/droidkaigi/confsched2023/KaigiApp.kt

@@ -110,6 +110,11 @@ private fun KaigiNavHost(
             onNavigationIconClick = {
                 navController.popBackStack()
             },
+            onTimetableItemClick = { timetableItem ->
+                navController.navigateToTimetableItemDetailScreen(
+                    timetableItem.id,
+                )
+            },
         )
         sponsorsScreen(
             onNavigationIconClick = {

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/SearchScreen.kt

@@ -1,7 +1,9 @@
 package io.github.droidkaigi.confsched2023.sessions
 
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.Divider
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
@@ -16,19 +18,47 @@ import androidx.navigation.NavController
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.compose.composable
 import io.github.droidkaigi.confsched2023.model.DroidKaigi2023Day
+import io.github.droidkaigi.confsched2023.model.Timetable
 import io.github.droidkaigi.confsched2023.model.TimetableCategory
+import io.github.droidkaigi.confsched2023.model.TimetableItem
+import io.github.droidkaigi.confsched2023.model.TimetableItemId
+import io.github.droidkaigi.confsched2023.sessions.SearchScreenUiState.Empty
+import io.github.droidkaigi.confsched2023.sessions.SearchScreenUiState.SearchList
 import io.github.droidkaigi.confsched2023.sessions.component.EmptySearchResultBody
 import io.github.droidkaigi.confsched2023.sessions.component.SearchFilter
 import io.github.droidkaigi.confsched2023.sessions.component.SearchFilterUiState
 import io.github.droidkaigi.confsched2023.sessions.component.SearchTextFieldAppBar
+import io.github.droidkaigi.confsched2023.sessions.section.SearchList
+import kotlinx.collections.immutable.PersistentSet
 
 const val searchScreenRoute = "search"
 const val SearchScreenTestTag = "SearchScreen"
 
-fun NavGraphBuilder.searchScreen(onNavigationIconClick: () -> Unit) {
+sealed interface SearchScreenUiState {
+    val searchQuery: String
+    val searchFilterUiState: SearchFilterUiState
+
+    data class Empty(
+        override val searchQuery: String,
+        override val searchFilterUiState: SearchFilterUiState,
+    ) : SearchScreenUiState
+
+    data class SearchList(
+        override val searchQuery: String,
+        override val searchFilterUiState: SearchFilterUiState,
+        val sessions: Timetable,
+        val bookmarkedTimetableItemIds: PersistentSet<TimetableItemId>,
+    ) : SearchScreenUiState
+}
+
+fun NavGraphBuilder.searchScreen(
+    onNavigationIconClick: () -> Unit,
+    onTimetableItemClick: (TimetableItem) -> Unit,
+) {
     composable(searchScreenRoute) {
         SearchScreen(
             onBackClick = onNavigationIconClick,
+            onTimetableItemClick = onTimetableItemClick,
         )
     }
 }
@@ -40,63 +70,74 @@ fun NavController.navigateSearchScreen() {
 @Composable
 fun SearchScreen(
     onBackClick: () -> Unit,
+    onTimetableItemClick: (TimetableItem) -> Unit,
     modifier: Modifier = Modifier,
     viewModel: SearchScreenViewModel = hiltViewModel(),
 ) {
     val uiState by viewModel.uiState.collectAsState()
 
     SearchScreen(
+        uiState = uiState,
         modifier = modifier,
         onBackClick = onBackClick,
-        searchQuery = uiState.searchQuery,
         onSearchQueryChanged = viewModel::onSearchQueryChanged,
-        searchFilterUiState = uiState.searchFilterUiState,
         onDaySelected = viewModel::onDaySelected,
         onFilterCategoryChipClicked = viewModel::onFilterCategoryChipClicked,
         onCategoriesSelected = viewModel::onCategoriesSelected,
+        onTimetableItemClick = onTimetableItemClick,
+        onBookmarkClick = viewModel::updateBookmark,
     )
 }
 
-data class SearchScreenUiState(
-    val searchQuery: String,
-    val searchFilterUiState: SearchFilterUiState,
-)
-
 @Composable
 private fun SearchScreen(
-    searchFilterUiState: SearchFilterUiState,
+    uiState: SearchScreenUiState,
     modifier: Modifier = Modifier,
     onBackClick: () -> Unit = {},
-    searchQuery: String = "",
     onSearchQueryChanged: (String) -> Unit = {},
     onDaySelected: (DroidKaigi2023Day, Boolean) -> Unit = { _, _ -> },
     onFilterCategoryChipClicked: () -> Unit = {},
     onCategoriesSelected: (TimetableCategory, Boolean) -> Unit = { _, _ -> },
+    onTimetableItemClick: (TimetableItem) -> Unit = {},
+    onBookmarkClick: (TimetableItem) -> Unit = {},
 ) {
+    val scrollState = rememberLazyListState()
     Scaffold(
         modifier = modifier.testTag(SearchScreenTestTag),
         topBar = {
             SearchTextFieldAppBar(
-                searchQuery = searchQuery,
+                searchQuery = uiState.searchQuery,
                 onSearchQueryChanged = onSearchQueryChanged,
                 onBackClick = onBackClick,
             )
         },
     ) { innerPadding ->
         Column(
-            modifier = Modifier.padding(innerPadding),
+            modifier = Modifier.padding(top = innerPadding.calculateTopPadding()),
         ) {
             Divider(
                 thickness = 1.dp,
                 color = MaterialTheme.colorScheme.outline,
             )
             SearchFilter(
-                searchFilterUiState = searchFilterUiState,
+                searchFilterUiState = uiState.searchFilterUiState,
                 onDaySelected = onDaySelected,
                 onFilterCategoryChipClicked = onFilterCategoryChipClicked,
                 onCategoriesSelected = onCategoriesSelected,
             )
-            EmptySearchResultBody()
+            when (uiState) {
+                is Empty -> EmptySearchResultBody(missedQuery = uiState.searchQuery)
+                is SearchList -> SearchList(
+                    contentPaddingValues = PaddingValues(
+                        bottom = innerPadding.calculateBottomPadding(),
+                    ),
+                    scrollState = scrollState,
+                    bookmarkedTimetableItemIds = uiState.bookmarkedTimetableItemIds,
+                    timetableItems = uiState.sessions.timetableItems,
+                    onTimetableItemClick = onTimetableItemClick,
+                    onBookmarkIconClick = onBookmarkClick,
+                )
+            }
         }
     }
 }

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/SearchScreenViewModel.kt

@@ -4,12 +4,21 @@ import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import io.github.droidkaigi.confsched2023.designsystem.strings.AppStrings
 import io.github.droidkaigi.confsched2023.model.DroidKaigi2023Day
+import io.github.droidkaigi.confsched2023.model.Filters
+import io.github.droidkaigi.confsched2023.model.SessionsRepository
+import io.github.droidkaigi.confsched2023.model.Timetable
 import io.github.droidkaigi.confsched2023.model.TimetableCategory
+import io.github.droidkaigi.confsched2023.model.TimetableItem
 import io.github.droidkaigi.confsched2023.sessions.component.SearchFilterUiState
+import io.github.droidkaigi.confsched2023.ui.UserMessageStateHolder
 import io.github.droidkaigi.confsched2023.ui.buildUiState
+import io.github.droidkaigi.confsched2023.ui.handleErrorAndRetry
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -18,21 +27,52 @@ const val SEARCH_QUERY = "searchQuery"
 @HiltViewModel
 class SearchScreenViewModel @Inject constructor(
     private val savedStateHandle: SavedStateHandle,
+    private val sessionsRepository: SessionsRepository,
+    userMessageStateHolder: UserMessageStateHolder,
 ) : ViewModel() {
     private val searchQuery = savedStateHandle.getStateFlow(SEARCH_QUERY, "")
 
     private val searchFilterUiState: MutableStateFlow<SearchFilterUiState> = MutableStateFlow(
         SearchFilterUiState(),
     )
 
+    private val sessionsStateFlow: StateFlow<Timetable> = sessionsRepository
+        .getTimetableStream()
+        .handleErrorAndRetry(
+            AppStrings.Retry,
+            userMessageStateHolder,
+        )
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000),
+            initialValue = Timetable(),
+        )
+
     val uiState: StateFlow<SearchScreenUiState> = buildUiState(
         searchQuery,
         searchFilterUiState,
-    ) { searchQuery, searchFilterUiState ->
-        SearchScreenUiState(
-            searchQuery = searchQuery,
-            searchFilterUiState = searchFilterUiState,
+        sessionsStateFlow,
+    ) { searchQuery, searchFilterUiState, sessions ->
+        val searchedSessions = sessions.filtered(
+            Filters(
+                days = searchFilterUiState.selectedDays,
+                categories = searchFilterUiState.selectedCategories,
+                searchWord = searchQuery,
+            ),
         )
+        if (searchedSessions.isEmpty()) {
+            SearchScreenUiState.Empty(
+                searchQuery = searchQuery,
+                searchFilterUiState = searchFilterUiState,
+            )
+        } else {
+            SearchScreenUiState.SearchList(
+                searchQuery = searchQuery,
+                searchFilterUiState = searchFilterUiState,
+                sessions = searchedSessions,
+                bookmarkedTimetableItemIds = sessions.bookmarks,
+            )
+        }
     }
 
     fun onSearchQueryChanged(searchQuery: String) {
@@ -78,4 +118,10 @@ class SearchScreenViewModel @Inject constructor(
             },
         )
     }
+
+    fun updateBookmark(timetableItem: TimetableItem) {
+        viewModelScope.launch {
+            sessionsRepository.toggleBookmark(timetableItem.id)
+        }
+    }
 }

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/SessionsStrings.kt

@@ -13,7 +13,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
     data object UserIcon : SessionsStrings()
     data object EventDay : SessionsStrings()
     data object Category : SessionsStrings()
-    data object SearchResultNotFound : SessionsStrings()
+    class SearchResultNotFound(val missedWord: String) : SessionsStrings()
     data object Bookmark : SessionsStrings()
     data object BookmarkFilterAllChip : SessionsStrings()
     data object BookmarkedItemNotFound : SessionsStrings()
@@ -31,6 +31,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
     data object WatchVideo : SessionsStrings()
     data object Speaker : SessionsStrings()
     data object TargetAudience : SessionsStrings()
+    data object SearchHint : SessionsStrings()
     private object Bindings : StringsBindings<SessionsStrings>(
         Lang.Japanese to { item, _ ->
             when (item) {
@@ -44,7 +45,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
                 Category -> "カテゴリー"
                 Bookmark -> "Bookmark"
                 BookmarkFilterAllChip -> "全て"
-                SearchResultNotFound -> "この検索条件に一致する結果はありません"
+                is SearchResultNotFound -> "「${item.missedWord}」と一致する検索結果がありません"
                 BookmarkedItemNotFound -> "登録されたセッションがありません"
                 BookmarkedItemNotFoundSideNote -> "気になるセッションをブックマークに追加して\n集めてみましょう！"
                 Share -> "共有"
@@ -60,6 +61,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
                 TargetAudience -> "対象者"
                 WatchVideo -> "動画を見る"
                 Speaker -> "スピーカー"
+                SearchHint -> "気になる技術を入力"
             }
         },
         Lang.English to { item, bindings ->
@@ -72,7 +74,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
                 UserIcon -> "User icon"
                 EventDay -> "Day"
                 Category -> "Category"
-                SearchResultNotFound -> "Nothing matched your search criteria"
+                is SearchResultNotFound -> "Nothing matched your search criteria \"${item.missedWord}\""
                 Bookmark -> "Bookmark"
                 BookmarkFilterAllChip -> "All"
                 BookmarkedItemNotFound -> "No sessions registered"
@@ -90,6 +92,7 @@ sealed class SessionsStrings : Strings<SessionsStrings>(Bindings) {
                 WatchVideo -> "Watch Video"
                 Speaker -> "Speaker"
                 TargetAudience -> "Target Audience"
+                SearchHint -> "Enter the technology you are interested in"
             }
         },
         default = Lang.Japanese,

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/component/EmptySearchResultBody.kt

@@ -6,6 +6,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.wrapContentSize
 import androidx.compose.material3.MaterialTheme
@@ -20,10 +21,11 @@ import io.github.droidkaigi.confsched2023.sessions.SessionsStrings
 
 @Composable
 fun EmptySearchResultBody(
+    missedQuery: String,
     modifier: Modifier = Modifier,
 ) {
     Box(
-        modifier = modifier.fillMaxSize(),
+        modifier = modifier.fillMaxSize().imePadding(),
         contentAlignment = Alignment.Center,
     ) {
         Column(
@@ -37,7 +39,7 @@ fun EmptySearchResultBody(
             )
             Spacer(modifier = Modifier.height(28.dp))
             Text(
-                text = SessionsStrings.SearchResultNotFound.asString(),
+                text = SessionsStrings.SearchResultNotFound(missedQuery).asString(),
                 style = MaterialTheme.typography.bodyLarge,
                 color = MaterialTheme.colorScheme.onBackground,
             )

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/component/SearchTextFieldAppBar.kt

@@ -15,6 +15,7 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
@@ -31,6 +32,7 @@ import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.input.VisualTransformation
 import androidx.compose.ui.unit.dp
+import io.github.droidkaigi.confsched2023.sessions.SessionsStrings
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -99,6 +101,13 @@ private fun SearchTextField(
                 singleLine = true,
                 visualTransformation = VisualTransformation.None,
                 interactionSource = interactionSource,
+                placeholder = {
+                    if (searchQuery.isBlank()) {
+                        Box {
+                            Text(text = SessionsStrings.SearchHint.asString())
+                        }
+                    }
+                },
                 trailingIcon = {
                     if (searchQuery.isNotEmpty()) {
                         Box(modifier = Modifier.offset(x = (-4).dp)) {

feature/sessions/src/main/java/io/github/droidkaigi/confsched2023/sessions/component/TimetableListItem.kt

@@ -5,6 +5,8 @@ import androidx.compose.foundation.Image
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.RowScope
 import androidx.compose.foundation.layout.Spacer
@@ -43,6 +45,7 @@ import io.github.droidkaigi.confsched2023.ui.rememberAsyncImagePainter
 const val TimetableListItemTestTag = "TimetableListItem"
 const val TimetableListItemBookmarkIconTestTag = "TimetableListItemBookmarkIconTestTag"
 
+@OptIn(ExperimentalLayoutApi::class)
 @Composable
 fun TimetableListItem(
     timetableItem: TimetableItem,
@@ -58,7 +61,7 @@ fun TimetableListItem(
             .clickable { onClick(timetableItem) },
     ) {
         Row(verticalAlignment = Alignment.CenterVertically) {
-            Row(modifier = Modifier.weight(1F)) {
+            FlowRow(modifier = Modifier.weight(1F)) {
                 chipContent()
             }
             IconToggleButton(