feat: 搜索联想

app/src/main/java/com/huanchengfly/tieba/post/api/interfaces/ITiebaApi.kt

@@ -12,6 +12,7 @@ import com.huanchengfly.tieba.post.api.models.protos.pbFloor.PbFloorResponse
 import com.huanchengfly.tieba.post.api.models.protos.pbPage.PbPageResponse
 import com.huanchengfly.tieba.post.api.models.protos.personalized.PersonalizedResponse
 import com.huanchengfly.tieba.post.api.models.protos.profile.ProfileResponse
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugResponse
 import com.huanchengfly.tieba.post.api.models.protos.threadList.ThreadListResponse
 import com.huanchengfly.tieba.post.api.models.protos.topicList.TopicListResponse
 import com.huanchengfly.tieba.post.api.models.protos.userLike.UserLikeResponse
@@ -1378,6 +1379,17 @@ interface ITiebaApi {
         postId: Long,
         forumId: Long = 0L,
         page: Int = 1,
-        subPostId: Long = 0L
+        subPostId: Long = 0L,
     ): Flow<PbFloorResponse>
+
+    /**
+     * 搜索联想
+     *
+     * @param keyword 关键词
+     * @param isForum 是否为吧
+     */
+    fun searchSuggestionsFlow(
+        keyword: String,
+        isForum: Boolean = false,
+    ): Flow<SearchSugResponse>
 }

app/src/main/java/com/huanchengfly/tieba/post/api/interfaces/impls/MixedTiebaApiImpl.kt

@@ -72,6 +72,9 @@ import com.huanchengfly.tieba.post.api.models.protos.personalized.PersonalizedRe
 import com.huanchengfly.tieba.post.api.models.protos.profile.ProfileRequest
 import com.huanchengfly.tieba.post.api.models.protos.profile.ProfileRequestData
 import com.huanchengfly.tieba.post.api.models.protos.profile.ProfileResponse
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugRequest
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugRequestData
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugResponse
 import com.huanchengfly.tieba.post.api.models.protos.threadList.AdParam
 import com.huanchengfly.tieba.post.api.models.protos.threadList.ThreadListRequest
 import com.huanchengfly.tieba.post.api.models.protos.threadList.ThreadListRequestData
@@ -1240,4 +1243,20 @@ object MixedTiebaApiImpl : ITiebaApi {
             )
         )
     }
+
+    override fun searchSuggestionsFlow(keyword: String, isForum: Boolean): Flow<SearchSugResponse> {
+        return RetrofitTiebaApi.OFFICIAL_PROTOBUF_TIEBA_V12_API.searchSugFlow(
+            buildProtobufRequestBody(
+                SearchSugRequest(
+                    SearchSugRequestData(
+                        common = buildCommonRequest(clientVersion = ClientVersion.TIEBA_V12),
+                        word = keyword,
+                        isforum = isForum.booleanToString()
+                    )
+                ),
+                clientVersion = ClientVersion.TIEBA_V12,
+                needSToken = true
+            )
+        )
+    }
 }

app/src/main/java/com/huanchengfly/tieba/post/api/retrofit/interfaces/OfficialProtobufTiebaApi.kt

@@ -8,6 +8,7 @@ import com.huanchengfly.tieba.post.api.models.protos.pbFloor.PbFloorResponse
 import com.huanchengfly.tieba.post.api.models.protos.pbPage.PbPageResponse
 import com.huanchengfly.tieba.post.api.models.protos.personalized.PersonalizedResponse
 import com.huanchengfly.tieba.post.api.models.protos.profile.ProfileResponse
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugResponse
 import com.huanchengfly.tieba.post.api.models.protos.threadList.ThreadListResponse
 import com.huanchengfly.tieba.post.api.models.protos.topicList.TopicListResponse
 import com.huanchengfly.tieba.post.api.models.protos.userLike.UserLikeResponse
@@ -73,4 +74,9 @@ interface OfficialProtobufTiebaApi {
     fun addPostFlow(
         @Body body: MyMultipartBody,
     ): Flow<AddPostResponse>
+
+    @POST("/c/s/searchSug?cmd=309438&format=protobuf")
+    fun searchSugFlow(
+        @Body body: MyMultipartBody,
+    ): Flow<SearchSugResponse>
 }

app/src/main/java/com/huanchengfly/tieba/post/ui/page/search/SearchPage.kt

@@ -23,6 +23,8 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.pager.PagerState
 import androidx.compose.foundation.pager.rememberPagerState
 import androidx.compose.foundation.rememberScrollState
@@ -57,6 +59,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
@@ -93,6 +96,7 @@ import com.huanchengfly.tieba.post.ui.page.search.user.SearchUserPage
 import com.huanchengfly.tieba.post.ui.widgets.compose.BaseTextField
 import com.huanchengfly.tieba.post.ui.widgets.compose.Button
 import com.huanchengfly.tieba.post.ui.widgets.compose.ClickMenu
+import com.huanchengfly.tieba.post.ui.widgets.compose.Container
 import com.huanchengfly.tieba.post.ui.widgets.compose.LazyLoadHorizontalPager
 import com.huanchengfly.tieba.post.ui.widgets.compose.MyBackHandler
 import com.huanchengfly.tieba.post.ui.widgets.compose.MyScaffold
@@ -107,6 +111,8 @@ import kotlinx.collections.immutable.ImmutableMap
 import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.persistentMapOf
 import kotlinx.collections.immutable.toImmutableList
+import kotlinx.coroutines.FlowPreview
+import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.filterIsInstance
 import kotlinx.coroutines.launch
 
@@ -121,7 +127,7 @@ data class SearchPageItem(
     val onSelectedSortTypeChange: (Int) -> Unit = {},
 )
 
-@OptIn(ExperimentalFoundationApi::class)
+@OptIn(ExperimentalFoundationApi::class, FlowPreview::class)
 @Destination
 @Composable
 fun SearchPage(
@@ -144,7 +150,25 @@ fun SearchPage(
         prop1 = SearchUiState::isKeywordEmpty,
         initial = true
     )
+    val suggestions by viewModel.uiState.collectPartialAsState(
+        prop1 = SearchUiState::suggestions,
+        initial = persistentListOf()
+    )
+
+    val showSuggestions by remember {
+        derivedStateOf { suggestions.isNotEmpty() }
+    }
+
     var inputKeyword by remember { mutableStateOf("") }
+
+    LaunchedEffect(Unit) {
+        snapshotFlow { inputKeyword }
+            .debounce(500)
+            .collect {
+                viewModel.send(SearchUiIntent.KeywordInputChanged(it))
+            }
+    }
+
     LaunchedEffect(keyword) {
         if (keyword.isNotEmpty() && keyword != inputKeyword) {
             inputKeyword = keyword
@@ -264,12 +288,22 @@ fun SearchPage(
                         pages[it].content()
                     }
                 }
+            } else {
+                if (showSuggestions) {
+                    SearchSuggestionList(
+                        suggestions = suggestions,
+                        onItemClick = {
+                            inputKeyword = it
+                            viewModel.send(SearchUiIntent.SubmitKeyword(it))
+                        }
+                    )
                 } else {
                     Column(
                         modifier = Modifier
                             .fillMaxSize()
                             .verticalScroll(rememberScrollState())
                     ) {
+                        Container {
                             SearchHistoryList(
                                 searchHistories = searchHistories,
                                 onSearchHistoryClick = {
@@ -286,6 +320,66 @@ fun SearchPage(
                 }
             }
         }
+    }
+}
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+private fun SearchSuggestionList(
+    suggestions: ImmutableList<String>,
+    onItemClick: (String) -> Unit,
+) {
+    LazyColumn(
+        modifier = Modifier.fillMaxWidth()
+    ) {
+        items(
+            items = suggestions,
+            key = { it }
+        ) {
+            Container(
+                modifier = Modifier.animateItemPlacement()
+            ) {
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(16.dp),
+                    modifier = Modifier
+                        .clickable {
+                            onItemClick(it)
+                        }
+                        .padding(horizontal = 16.dp, vertical = 8.dp)
+                ) {
+                    Icon(
+                        imageVector = Icons.Rounded.Search,
+                        contentDescription = stringResource(id = R.string.desc_search_sug, it),
+                        tint = ExtendedTheme.colors.text
+                    )
+
+                    Text(
+                        text = it,
+                        style = MaterialTheme.typography.subtitle2,
+                        modifier = Modifier.weight(1f),
+                        color = ExtendedTheme.colors.text
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Preview("SearchSuggestionList", backgroundColor = 0xFFFFFFFF)
+@Composable
+private fun SearchSuggestionListPreview() {
+    TiebaLiteTheme {
+        Box(
+            modifier = Modifier.background(ExtendedTheme.colors.topBar)
+        ) {
+            SearchSuggestionList(
+                suggestions = persistentListOf("1", "2", "3"),
+                onItemClick = {}
+            )
+        }
+    }
+}
 
 @OptIn(ExperimentalFoundationApi::class)
 @Composable

app/src/main/java/com/huanchengfly/tieba/post/ui/page/search/SearchViewModel.kt

@@ -2,6 +2,8 @@ package com.huanchengfly.tieba.post.ui.page.search
 
 import com.huanchengfly.tieba.post.App
 import com.huanchengfly.tieba.post.R
+import com.huanchengfly.tieba.post.api.TiebaApi
+import com.huanchengfly.tieba.post.api.models.protos.searchSug.SearchSugResponse
 import com.huanchengfly.tieba.post.api.retrofit.exception.getErrorCode
 import com.huanchengfly.tieba.post.api.retrofit.exception.getErrorMessage
 import com.huanchengfly.tieba.post.arch.BaseViewModel
@@ -24,6 +26,7 @@ import kotlinx.coroutines.flow.flatMapConcat
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.flow.onEach
 import org.litepal.LitePal
@@ -70,6 +73,8 @@ class SearchViewModel :
                     .flatMapConcat { it.producePartialChange() },
                 intentFlow.filterIsInstance<SearchUiIntent.SubmitKeyword>()
                     .flatMapConcat { it.producePartialChange() },
+                intentFlow.filterIsInstance<SearchUiIntent.KeywordInputChanged>()
+                    .flatMapConcat { it.producePartialChange() },
             )
 
         private fun produceInitPartialChange() = flow<SearchPartialChange.Init> {
@@ -109,6 +114,21 @@ class SearchViewModel :
                         )
                     }
                 }
+
+        private fun SearchUiIntent.KeywordInputChanged.producePartialChange() =
+            if (keyword.isNotBlank()) {
+                TiebaApi.getInstance().searchSuggestionsFlow(keyword)
+                    .map<SearchSugResponse, SearchPartialChange.KeywordInputChanged> {
+                        SearchPartialChange.KeywordInputChanged.Success(
+                            it.data_?.list ?: listOf()
+                        )
+                    }
+                    .catch {
+                        emit(SearchPartialChange.KeywordInputChanged.Failure(it.getErrorMessage()))
+                    }
+            } else {
+                flowOf(SearchPartialChange.KeywordInputChanged.Success(emptyList()))
+            }
     }
 }
 
@@ -120,6 +140,8 @@ sealed interface SearchUiIntent : UiIntent {
     data class DeleteSearchHistory(val id: Long) : SearchUiIntent
 
     data class SubmitKeyword(val keyword: String) : SearchUiIntent
+
+    data class KeywordInputChanged(val keyword: String) : SearchUiIntent
 }
 
 sealed interface SearchPartialChange : PartialChange<SearchUiState> {
@@ -167,7 +189,10 @@ sealed interface SearchPartialChange : PartialChange<SearchUiState> {
     data class SubmitKeyword(val keyword: String) : SearchPartialChange {
         override fun reduce(oldState: SearchUiState): SearchUiState {
             if (keyword.isEmpty()) {
-                return oldState.copy(isKeywordEmpty = true)
+                return oldState.copy(
+                    isKeywordEmpty = true,
+                    suggestions = persistentListOf()
+                )
             }
             val newSearchHistories = (oldState.searchHistories
                 .filterNot { it.content == keyword } + SearchHistory(content = keyword))
@@ -179,12 +204,26 @@ sealed interface SearchPartialChange : PartialChange<SearchUiState> {
             )
         }
     }
+
+    sealed class KeywordInputChanged : SearchPartialChange {
+        override fun reduce(oldState: SearchUiState): SearchUiState = when (this) {
+            is Success -> oldState.copy(suggestions = suggestions.toImmutableList())
+            is Failure -> oldState
+        }
+
+        data class Success(val suggestions: List<String>) : KeywordInputChanged()
+
+        data class Failure(
+            val errorMessage: String,
+        ) : KeywordInputChanged()
+    }
 }
 
 data class SearchUiState(
     val keyword: String = "",
     val isKeywordEmpty: Boolean = true,
     val searchHistories: ImmutableList<SearchHistory> = persistentListOf(),
+    val suggestions: ImmutableList<String> = persistentListOf(),
 ) : UiState
 
 sealed interface SearchUiEvent : UiEvent {

app/src/main/protos/ForumInfo.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package tieba;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos";
+
+message ForumInfo {
+  uint32 forum_id = 1;
+  string forum_name = 2;
+  string avatar = 3;
+  string post_num = 4;
+  string concern_num = 5;
+  int32 has_concerned = 6;
+}

app/src/main/protos/RankingParam.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package tieba;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos";
+
+message RankingParam {
+  int32 rank_type = 1;
+  int32 rank_code = 2;
+  string sort_type = 3;
+  int32 tab_id = 4;
+  int32 pn = 5;
+  int32 rn = 6;
+}

app/src/main/protos/RecommendForumInfo.proto

@@ -0,0 +1,32 @@
+syntax = "proto3";
+
+package tieba;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos";
+
+import "PbContent.proto";
+
+message RecommendForumInfo {
+  string avatar = 1;
+  uint64 forum_id = 2;
+  string forum_name = 3;
+  uint32 is_like = 4;
+  uint32 member_count = 5;
+  uint32 thread_count = 6;
+  string slogan = 7;
+  repeated PbContent content = 8;
+  uint32 forum_type = 9;
+  string authen = 10;
+  string recom_reason = 11;
+  uint32 is_brand_forum = 12;
+  string hot_text = 13;
+  string abtest_tag = 14;
+  string source = 15;
+  string extra = 16;
+  uint32 is_private_forum = 17;
+  string lv1_name = 18;
+  string lv2_name = 19;
+  string avatar_origin = 20;
+  uint64 hot_thread_id = 22;
+  int32 is_recommend_forum = 23;
+}

app/src/main/protos/SearchSug/SearchSugRequest.proto

@@ -0,0 +1,11 @@
+syntax = "proto3";
+
+package tieba.searchSug;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos.searchSug";
+
+import "SearchSug/SearchSugRequestData.proto";
+
+message SearchSugRequest {
+  SearchSugRequestData data = 1;
+}

app/src/main/protos/SearchSug/SearchSugRequestData.proto

@@ -0,0 +1,13 @@
+syntax = "proto3";
+
+package tieba.searchSug;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos.searchSug";
+
+import "CommonRequest.proto";
+
+message SearchSugRequestData {
+  CommonRequest common = 1;
+  string word = 2;
+  string isforum = 3;
+}

app/src/main/protos/SearchSug/SearchSugResponse.proto

@@ -0,0 +1,13 @@
+syntax = "proto3";
+
+package tieba.searchSug;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos.searchSug";
+
+import "Error.proto";
+import "SearchSug/SearchSugResponseData.proto";
+
+message SearchSugResponse {
+  Error error = 1;
+  SearchSugResponseData data = 2;
+}

app/src/main/protos/SearchSug/SearchSugResponseData.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+
+package tieba.searchSug;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos.searchSug";
+
+import "ForumInfo.proto";
+import "Item.proto";
+import "RecommendForumInfo.proto";
+import "SugLiveInfo.proto";
+import "SugRankingInfo.proto";
+
+message SearchSugResponseData {
+  int32 forum_loc = 1;
+  repeated string list = 2;
+  repeated ForumInfo forum_list = 3;
+  RecommendForumInfo forum_card = 4;
+  Item item_card = 5;
+  repeated SugLiveInfo live_card = 6;
+  SugRankingInfo ranking_card = 7;
+}

app/src/main/protos/SugLiveInfo.proto

@@ -0,0 +1,12 @@
+syntax = "proto3";
+
+package tieba;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos";
+
+import "AlaLiveInfo.proto";
+
+message SugLiveInfo {
+  string word = 1;
+  AlaLiveInfo ala_info = 2;
+}

app/src/main/protos/SugRankingInfo.proto

@@ -0,0 +1,12 @@
+syntax = "proto3";
+
+package tieba;
+
+option java_package = "com.huanchengfly.tieba.post.api.models.protos";
+
+import "RankingParam.proto";
+
+message SugRankingInfo {
+  string rank_title = 1;
+  RankingParam rank_param = 2;
+}

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

@@ -741,4 +741,5 @@
     <string name="summary_lift_up_bottom_bar">略微抬起贴子页面底栏以方便点按</string>
     <string name="button_open">打开</string>
     <string name="btn_hide">隐藏</string>
+    <string name="desc_search_sug">搜索联想：%s</string>
 </resources>