feat: 新版用户关注吧

app/src/main/java/com/huanchengfly/tieba/post/api/models/UserLikeForumBean.kt

@@ -1,5 +1,6 @@
 package com.huanchengfly.tieba.post.api.models
 
+import androidx.compose.runtime.Immutable
 import com.google.gson.annotations.SerializedName
 import com.huanchengfly.tieba.post.models.BaseBean
 import kotlinx.collections.immutable.persistentListOf
@@ -39,9 +40,10 @@ data class UserLikeForumBean(
         val forumList: List<ForumBean> = persistentListOf(),
     )
 
+    @Immutable
     @Serializable
     data class ForumBean(
-        val id: String? = null,
+        val id: String = "",
 
         @JvmField
         val name: String? = null,

app/src/main/java/com/huanchengfly/tieba/post/ui/page/user/UserProfilePage.kt

@@ -69,6 +69,7 @@ import com.huanchengfly.tieba.post.arch.getOrNull
 import com.huanchengfly.tieba.post.arch.pageViewModel
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
 import com.huanchengfly.tieba.post.ui.page.ProvideNavigator
+import com.huanchengfly.tieba.post.ui.page.user.likeforum.UserLikeForumPage
 import com.huanchengfly.tieba.post.ui.page.user.post.UserPostPage
 import com.huanchengfly.tieba.post.ui.widgets.Chip
 import com.huanchengfly.tieba.post.ui.widgets.compose.Avatar
@@ -283,7 +284,7 @@ fun UserProfilePage(
                                                 )
                                             },
                                             content = {
-                                                Text(text = "concern_forums")
+                                                UserLikeForumPage(uid = it.get { id })
                                             }
                                         ),
                                     ).toImmutableList()

app/src/main/java/com/huanchengfly/tieba/post/ui/page/user/likeforum/UserLikeForumPage.kt

@@ -0,0 +1,199 @@
+package com.huanchengfly.tieba.post.ui.page.user.likeforum
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material.ExperimentalMaterialApi
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.material.pullrefresh.PullRefreshIndicator
+import androidx.compose.material.pullrefresh.rememberPullRefreshState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.huanchengfly.tieba.post.api.models.UserLikeForumBean
+import com.huanchengfly.tieba.post.arch.GlobalEvent
+import com.huanchengfly.tieba.post.arch.collectPartialAsState
+import com.huanchengfly.tieba.post.arch.getOrNull
+import com.huanchengfly.tieba.post.arch.onGlobalEvent
+import com.huanchengfly.tieba.post.arch.pageViewModel
+import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
+import com.huanchengfly.tieba.post.ui.common.theme.compose.pullRefreshIndicator
+import com.huanchengfly.tieba.post.ui.page.LocalNavigator
+import com.huanchengfly.tieba.post.ui.page.destinations.ForumPageDestination
+import com.huanchengfly.tieba.post.ui.widgets.compose.Avatar
+import com.huanchengfly.tieba.post.ui.widgets.compose.ErrorScreen
+import com.huanchengfly.tieba.post.ui.widgets.compose.LazyLoad
+import com.huanchengfly.tieba.post.ui.widgets.compose.LoadMoreLayout
+import com.huanchengfly.tieba.post.ui.widgets.compose.MyLazyColumn
+import com.huanchengfly.tieba.post.ui.widgets.compose.Sizes
+import com.huanchengfly.tieba.post.ui.widgets.compose.states.StateScreen
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
+
+@OptIn(ExperimentalMaterialApi::class)
+@Composable
+fun UserLikeForumPage(
+    uid: Long,
+    viewModel: UserLikeForumViewModel = pageViewModel(),
+) {
+    val navigator = LocalNavigator.current
+
+    LazyLoad(loaded = viewModel.initialized) {
+        viewModel.send(UserLikeForumUiIntent.Refresh(uid))
+        viewModel.initialized = true
+    }
+
+    val isRefreshing by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::isRefreshing,
+        initial = true
+    )
+    val isLoadingMore by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::isLoadingMore,
+        initial = false
+    )
+    val error by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::error,
+        initial = null
+    )
+    val currentPage by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::currentPage,
+        initial = 1
+    )
+    val hasMore by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::hasMore,
+        initial = false
+    )
+    val forums by viewModel.uiState.collectPartialAsState(
+        prop1 = UserLikeForumUiState::forums,
+        initial = persistentListOf()
+    )
+
+    val isEmpty by remember {
+        derivedStateOf { forums.isEmpty() }
+    }
+    val isError by remember {
+        derivedStateOf { error != null }
+    }
+
+    onGlobalEvent<GlobalEvent.Refresh>(
+        filter = { it.key == "user_profile" }
+    ) {
+        viewModel.send(UserLikeForumUiIntent.Refresh(uid))
+    }
+
+    StateScreen(
+        isEmpty = isEmpty,
+        isError = isError,
+        isLoading = isRefreshing,
+        onReload = {
+            viewModel.send(UserLikeForumUiIntent.Refresh(uid))
+        },
+        errorScreen = { ErrorScreen(error = error.getOrNull()) },
+    ) {
+        val pullRefreshState = rememberPullRefreshState(
+            refreshing = isRefreshing,
+            onRefresh = ::reload
+        )
+
+        val lazyListState = rememberLazyListState()
+
+        Box {
+            LoadMoreLayout(
+                isLoading = isLoadingMore,
+                onLoadMore = {
+                    viewModel.send(UserLikeForumUiIntent.LoadMore(uid, currentPage))
+                },
+                loadEnd = !hasMore,
+                lazyListState = lazyListState
+            ) {
+                UserLikeForumList(
+                    forums = { forums },
+                    onClickForum = { forumBean ->
+                        forumBean.name?.let {
+                            navigator.navigate(ForumPageDestination(it))
+                        }
+                    },
+                    lazyListState = lazyListState
+                )
+            }
+
+            PullRefreshIndicator(
+                refreshing = isRefreshing,
+                state = pullRefreshState,
+                modifier = Modifier.align(Alignment.TopCenter),
+                backgroundColor = ExtendedTheme.colors.pullRefreshIndicator,
+                contentColor = ExtendedTheme.colors.primary,
+            )
+        }
+    }
+}
+
+@Composable
+private fun UserLikeForumList(
+    forums: () -> ImmutableList<UserLikeForumBean.ForumBean>,
+    onClickForum: (UserLikeForumBean.ForumBean) -> Unit,
+    lazyListState: LazyListState = rememberLazyListState(),
+) {
+    val data = remember(forums) { forums() }
+    MyLazyColumn(state = lazyListState) {
+        items(
+            items = data,
+            key = { it.id }
+        ) {
+            UserLikeForumItem(
+                item = it,
+                onClick = {
+                    onClickForum(it)
+                },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 16.dp, vertical = 8.dp)
+            )
+        }
+    }
+}
+
+@Composable
+private fun UserLikeForumItem(
+    item: UserLikeForumBean.ForumBean,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    Row(
+        modifier = Modifier
+            .clickable(onClick = onClick)
+            .then(modifier),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(8.dp)
+    ) {
+        Avatar(
+            data = item.avatar,
+            size = Sizes.Medium,
+            contentDescription = null
+        )
+        Column(
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            Text(text = item.name.orEmpty(), style = MaterialTheme.typography.subtitle1)
+            item.slogan.takeUnless { it.isNullOrEmpty() }?.let {
+                Text(
+                    text = it,
+                    style = MaterialTheme.typography.body2,
+                    color = ExtendedTheme.colors.textSecondary
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/huanchengfly/tieba/post/ui/page/user/likeforum/UserLikeForumViewModel.kt

@@ -0,0 +1,168 @@
+package com.huanchengfly.tieba.post.ui.page.user.likeforum
+
+import androidx.compose.runtime.Immutable
+import com.huanchengfly.tieba.post.api.TiebaApi
+import com.huanchengfly.tieba.post.api.models.UserLikeForumBean
+import com.huanchengfly.tieba.post.arch.BaseViewModel
+import com.huanchengfly.tieba.post.arch.ImmutableHolder
+import com.huanchengfly.tieba.post.arch.PartialChange
+import com.huanchengfly.tieba.post.arch.PartialChangeProducer
+import com.huanchengfly.tieba.post.arch.UiEvent
+import com.huanchengfly.tieba.post.arch.UiIntent
+import com.huanchengfly.tieba.post.arch.UiState
+import com.huanchengfly.tieba.post.arch.wrapImmutable
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
+import kotlinx.collections.immutable.toImmutableList
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.filterIsInstance
+import kotlinx.coroutines.flow.flatMapConcat
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.merge
+import kotlinx.coroutines.flow.onStart
+import javax.inject.Inject
+
+@HiltViewModel
+class UserLikeForumViewModel @Inject constructor() :
+    BaseViewModel<UserLikeForumUiIntent, UserLikeForumPartialChange, UserLikeForumUiState, UiEvent>() {
+    override fun createInitialState(): UserLikeForumUiState = UserLikeForumUiState()
+
+    override fun createPartialChangeProducer(): PartialChangeProducer<UserLikeForumUiIntent, UserLikeForumPartialChange, UserLikeForumUiState> =
+        UserLikeForumPartialChangeProducer
+
+    private object UserLikeForumPartialChangeProducer :
+        PartialChangeProducer<UserLikeForumUiIntent, UserLikeForumPartialChange, UserLikeForumUiState> {
+        @OptIn(ExperimentalCoroutinesApi::class)
+        override fun toPartialChangeFlow(intentFlow: Flow<UserLikeForumUiIntent>): Flow<UserLikeForumPartialChange> =
+            merge(
+                intentFlow.filterIsInstance<UserLikeForumUiIntent.Refresh>()
+                    .flatMapConcat { it.toPartialChangeFlow() },
+                intentFlow.filterIsInstance<UserLikeForumUiIntent.LoadMore>()
+                    .flatMapConcat { it.toPartialChangeFlow() },
+            )
+
+        private fun UserLikeForumUiIntent.Refresh.toPartialChangeFlow(): Flow<UserLikeForumPartialChange.Refresh> =
+            TiebaApi.getInstance()
+                .userLikeForumFlow(uid.toString())
+                .map<UserLikeForumBean, UserLikeForumPartialChange.Refresh> {
+                    UserLikeForumPartialChange.Refresh.Success(
+                        page = 1,
+                        hasMore = it.hasMore == "1",
+                        forums = it.forumList.forumList,
+                    )
+                }
+                .onStart { emit(UserLikeForumPartialChange.Refresh.Start) }
+                .catch { emit(UserLikeForumPartialChange.Refresh.Failure(it)) }
+
+        private fun UserLikeForumUiIntent.LoadMore.toPartialChangeFlow(): Flow<UserLikeForumPartialChange.LoadMore> =
+            TiebaApi.getInstance()
+                .userLikeForumFlow(uid.toString(), page + 1)
+                .map<UserLikeForumBean, UserLikeForumPartialChange.LoadMore> {
+                    UserLikeForumPartialChange.LoadMore.Success(
+                        page = page + 1,
+                        hasMore = it.hasMore == "1",
+                        forums = it.forumList.forumList,
+                    )
+                }
+                .onStart { emit(UserLikeForumPartialChange.LoadMore.Start) }
+                .catch { emit(UserLikeForumPartialChange.LoadMore.Failure(it)) }
+    }
+}
+
+sealed interface UserLikeForumUiIntent : UiIntent {
+    data class Refresh(val uid: Long) : UserLikeForumUiIntent
+    data class LoadMore(
+        val uid: Long,
+        val page: Int,
+    ) : UserLikeForumUiIntent
+}
+
+sealed interface UserLikeForumPartialChange : PartialChange<UserLikeForumUiState> {
+    sealed class Refresh : UserLikeForumPartialChange {
+        override fun reduce(oldState: UserLikeForumUiState): UserLikeForumUiState = when (this) {
+            is Start -> {
+                oldState.copy(
+                    isRefreshing = true,
+                )
+            }
+
+            is Success -> {
+                oldState.copy(
+                    isRefreshing = false,
+                    error = null,
+                    currentPage = page,
+                    hasMore = hasMore,
+                    forums = forums.toImmutableList(),
+                )
+            }
+
+            is Failure -> {
+                oldState.copy(
+                    isRefreshing = false,
+                    error = error.wrapImmutable(),
+                )
+            }
+        }
+
+        data object Start : Refresh()
+
+        data class Success(
+            val page: Int,
+            val hasMore: Boolean,
+            val forums: List<UserLikeForumBean.ForumBean>,
+        ) : Refresh()
+
+        data class Failure(val error: Throwable) : Refresh()
+    }
+
+    sealed class LoadMore : UserLikeForumPartialChange {
+        override fun reduce(oldState: UserLikeForumUiState): UserLikeForumUiState = when (this) {
+            is Start -> {
+                oldState.copy(
+                    isLoadingMore = true,
+                )
+            }
+
+            is Success -> {
+                val uniqueForums = (oldState.forums + forums).distinctBy { it.id }
+                oldState.copy(
+                    isLoadingMore = false,
+                    error = null,
+                    currentPage = page,
+                    hasMore = hasMore,
+                    forums = uniqueForums.toImmutableList(),
+                )
+            }
+
+            is Failure -> {
+                oldState.copy(
+                    isLoadingMore = false,
+                    error = error.wrapImmutable(),
+                )
+            }
+        }
+
+        data object Start : LoadMore()
+
+        data class Success(
+            val page: Int,
+            val hasMore: Boolean,
+            val forums: List<UserLikeForumBean.ForumBean>,
+        ) : LoadMore()
+
+        data class Failure(val error: Throwable) : LoadMore()
+    }
+}
+
+@Immutable
+data class UserLikeForumUiState(
+    val isRefreshing: Boolean = false,
+    val isLoadingMore: Boolean = false,
+    val error: ImmutableHolder<Throwable>? = null,
+    val currentPage: Int = 1,
+    val hasMore: Boolean = false,
+    val forums: ImmutableList<UserLikeForumBean.ForumBean> = persistentListOf(),
+) : UiState