Improve pull feeds

app/src/main/java/me/ash/reader/data/repository/AbstractRssRepository.kt

@@ -72,7 +72,7 @@ abstract class AbstractRssRepository constructor(
     fun pullFeeds(): Flow<MutableList<GroupWithFeed>> {
         return groupDao.queryAllGroupWithFeed(
             context.dataStore.get(DataStoreKeys.CurrentAccountId) ?: 0
-        )
+        )//.flowOn(Dispatchers.IO)
     }
 
     fun pullArticles(
@@ -81,6 +81,7 @@ abstract class AbstractRssRepository constructor(
         isStarred: Boolean = false,
         isUnread: Boolean = false,
     ): PagingSource<Int, ArticleWithFeed> {
+        Log.i("RLog", "thread:pullArticles ${Thread.currentThread().name}")
         val accountId = context.dataStore.get(DataStoreKeys.CurrentAccountId) ?: 0
         Log.i(
             "RLog",
@@ -116,6 +117,7 @@ abstract class AbstractRssRepository constructor(
         isUnread: Boolean = false,
     ): Flow<List<ImportantCount>> {
         return withContext(Dispatchers.IO) {
+            Log.i("RLog", "thread:pullImportant ${Thread.currentThread().name}")
             val accountId = context.dataStore.get(DataStoreKeys.CurrentAccountId)!!
             Log.i(
                 "RLog",
@@ -128,7 +130,7 @@ abstract class AbstractRssRepository constructor(
                     .queryImportantCountWhenIsUnread(accountId, isUnread)
                 else -> articleDao.queryImportantCountWhenIsAll(accountId)
             }
-        }
+        }//.flowOn(Dispatchers.IO)
     }
 
     suspend fun findArticleById(id: String): ArticleWithFeed? {
@@ -176,7 +178,6 @@ class SyncWorker @AssistedInject constructor(
             15, TimeUnit.MINUTES
         ).setConstraints(
             Constraints.Builder()
-                .setRequiredNetworkType(NetworkType.CONNECTED)
                 .build()
         ).addTag(WORK_NAME).build()
     }

app/src/main/java/me/ash/reader/data/repository/LocalRssRepository.kt

@@ -87,8 +87,8 @@ class LocalRssRepository @Inject constructor(
 
     override suspend fun sync() {
         mutex.withLock {
-            val preTime = System.currentTimeMillis()
             withContext(Dispatchers.IO) {
+                val preTime = System.currentTimeMillis()
                 val accountId = context.dataStore.get(DataStoreKeys.CurrentAccountId)
                     ?: return@withContext
                 val feeds = async { feedDao.queryAll(accountId) }
@@ -98,6 +98,7 @@ class LocalRssRepository @Inject constructor(
                             feedCount = feed.size,
                         )
                     }
+                    Log.i("RLog", "thread:sync ${Thread.currentThread().name}")
                 }.map { feed ->
                     async {
                         val articles = syncFeed(accountId, feed)
@@ -132,36 +133,37 @@ class LocalRssRepository @Inject constructor(
     private suspend fun syncFeed(
         accountId: Int,
         feed: Feed
-    ): MutableList<Article> {
-        val articles = mutableListOf<Article>()
+    ): List<Article> {
         val latest = articleDao.queryLatestByFeedId(accountId, feed.id)
-        articles.addAll(
-            rssHelper.queryRssXml(
-                rssNetworkDataSource,
-                accountId,
-                feed,
-                latest?.title,
-            ).also {
-                if (feed.icon == null && it.isNotEmpty()) {
-                    rssHelper.queryRssIcon(feedDao, feed, it.first().link)
-                }
+        val articles = rssHelper.queryRssXml(
+            rssNetworkDataSource,
+            accountId,
+            feed,
+            latest?.link,
+        ).also {
+            if (feed.icon == null && it.isNotEmpty()) {
+                rssHelper.queryRssIcon(feedDao, feed, it.first().link)
             }
-        )
+        }
+
+        Log.i("RLog", "thread:syncFeed ${Thread.currentThread().name}")
         updateSyncState {
             it.copy(
                 syncedCount = it.syncedCount + 1,
                 currentFeedName = feed.name
             )
         }
-        articleDao.insertList(articles)
-        if (feed.isNotification) {
-            notify(articles)
+        if (articles.isNotEmpty()) {
+            articleDao.insertList(articles)
+            if (feed.isNotification) {
+                notify(articles)
+            }
         }
         return articles
     }
 
     private fun notify(
-        articles: MutableList<Article>,
+        articles: List<Article>,
     ) {
         articles.forEach { article ->
             val builder = NotificationCompat.Builder(

app/src/main/java/me/ash/reader/data/repository/RssHelper.kt

@@ -92,13 +92,13 @@ class RssHelper @Inject constructor(
         rssNetworkDataSource: RssNetworkDataSource,
         accountId: Int,
         feed: Feed,
-        latestTitle: String? = null,
+        latestLink: String? = null,
     ): List<Article> {
         val a = mutableListOf<Article>()
         try {
             val parseRss = rssNetworkDataSource.parseRss(feed.url)
             parseRss.items.forEach {
-                if (latestTitle != null && latestTitle == it.title) return a
+                if (latestLink != null && latestLink == it.link) return a
                 Log.i("RLog", "request rss ${feed.name}: ${it.title}")
                 a.add(
                     Article(

app/src/main/java/me/ash/reader/ui/page/home/FilterBar2.kt

@@ -0,0 +1,50 @@
+package me.ash.reader.ui.page.home
+
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.width
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.google.accompanist.pager.ExperimentalPagerApi
+import me.ash.reader.data.constant.Filter
+import me.ash.reader.ui.extension.getName
+
+@OptIn(ExperimentalPagerApi::class)
+@Composable
+fun FilterBar2(
+    modifier: Modifier = Modifier,
+    filter: Filter,
+    onSelected: (Filter) -> Unit = {},
+) {
+    NavigationBar(
+        tonalElevation = 0.dp,
+    ) {
+        Spacer(modifier = Modifier.width(60.dp))
+        listOf(
+            Filter.Starred,
+            Filter.Unread,
+            Filter.All,
+        ).forEach { item ->
+            NavigationBarItem(
+                icon = {
+                    Icon(
+                        imageVector = if (filter == item) item.filledIcon else item.icon,
+                        contentDescription = item.getName()
+                    )
+                },
+//                label = { Text(text = item.getName()) },
+                selected = filter == item,
+                onClick = { onSelected(item) },
+                colors = NavigationBarItemDefaults.colors(
+                    selectedIconColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                    unselectedIconColor = MaterialTheme.colorScheme.outline,
+                    selectedTextColor = MaterialTheme.colorScheme.onSurface,
+                    unselectedTextColor = MaterialTheme.colorScheme.onSurfaceVariant,
+                    indicatorColor = MaterialTheme.colorScheme.secondaryContainer,
+                )
+            )
+        }
+        Spacer(modifier = Modifier.width(60.dp))
+    }
+}

app/src/main/java/me/ash/reader/ui/page/home/HomeBottomNavBar.kt

@@ -113,7 +113,12 @@ fun HomeBottomNavBar(
                     .alpha(1 - readerBarAlpha),
             ) {
                 Log.i("RLog", "AppNavigationBar: ${readerBarAlpha}, ${1f - readerBarAlpha}")
-                FilterBar(
+//                FilterBar(
+//                    modifier = modifier,
+//                    filter = filter,
+//                    onSelected = filterOnClick,
+//                )
+                FilterBar2(
                     modifier = modifier,
                     filter = filter,
                     onSelected = filterOnClick,

app/src/main/java/me/ash/reader/ui/page/home/feeds/FeedsViewModel.kt

@@ -5,6 +5,7 @@ import androidx.compose.foundation.lazy.LazyListState
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import me.ash.reader.data.account.Account
@@ -67,6 +68,7 @@ class FeedsViewModel @Inject constructor(
             rssRepository.get().pullFeeds(),
             rssRepository.get().pullImportant(isStarred, isUnread),
         ) { groupWithFeedList, importantList ->
+            Log.i("RLog", "thread:combine ${Thread.currentThread().name}")
             val groupImportantMap = mutableMapOf<String, Int>()
             val feedImportantMap = mutableMapOf<String, Int>()
             importantList.groupBy { it.groupId }.forEach { (i, list) ->
@@ -101,6 +103,8 @@ class FeedsViewModel @Inject constructor(
         }.onStart {
 
         }.onEach { groupWithFeedList ->
+            Log.i("RLog", "thread:onEach ${Thread.currentThread().name}")
+
             _viewState.update {
                 it.copy(
                     filter = when {
@@ -116,7 +120,7 @@ class FeedsViewModel @Inject constructor(
             }
         }.catch {
             Log.e("RLog", "catch in articleRepository.pullFeeds(): $this")
-        }.collect()
+        }.flowOn(Dispatchers.Default).collect()
     }
 
     private fun scrollToItem(index: Int) {

app/src/main/java/me/ash/reader/ui/page/home/flow/ArticleList.kt

@@ -19,12 +19,11 @@ import me.ash.reader.ui.page.home.read.ReadViewModel
 @OptIn(ExperimentalFoundationApi::class)
 fun LazyListScope.generateArticleList(
     context: Context,
-    pagingItems: LazyPagingItems<ArticleWithFeed>?,
+    pagingItems: LazyPagingItems<ArticleWithFeed>,
     readViewModel: ReadViewModel,
     homeViewModel: HomeViewModel,
     scope: CoroutineScope
 ) {
-    pagingItems ?: return
     var lastItemDay: String? = null
     for (itemIndex in 0 until pagingItems.itemCount) {
         val currentItem = pagingItems.peek(itemIndex) ?: continue

app/src/main/java/me/ash/reader/ui/page/home/flow/FlowPage.kt

@@ -22,7 +22,6 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.navigation.NavHostController
 import androidx.paging.compose.collectAsLazyPagingItems
-import kotlinx.coroutines.flow.collect
 import me.ash.reader.R
 import me.ash.reader.ui.extension.collectAsStateValue
 import me.ash.reader.ui.extension.getName
@@ -46,7 +45,7 @@ fun FlowPage(
     val scope = rememberCoroutineScope()
     val viewState = viewModel.viewState.collectAsStateValue()
     val filterState = homeViewModel.filterState.collectAsStateValue()
-    val pagingItems = viewState.pagingData?.collectAsLazyPagingItems()
+    val pagingItems = viewState.pagingData.collectAsLazyPagingItems()
 
     LaunchedEffect(homeViewModel.filterState) {
         homeViewModel.filterState.collect { state ->

app/src/main/java/me/ash/reader/ui/page/home/flow/FlowViewModel.kt

@@ -1,5 +1,6 @@
 package me.ash.reader.ui.page.home.flow
 
+import android.util.Log
 import androidx.compose.foundation.lazy.LazyListState
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
@@ -8,6 +9,7 @@ import androidx.paging.PagingConfig
 import androidx.paging.PagingData
 import androidx.paging.cachedIn
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import me.ash.reader.data.article.ArticleWithFeed
@@ -53,13 +55,14 @@ class FlowViewModel @Inject constructor(
         _viewState.update {
             it.copy(
                 pagingData = Pager(PagingConfig(pageSize = 10)) {
+                    Log.i("RLog", "thread:Pager ${Thread.currentThread().name}")
                     rssRepository.get().pullArticles(
                         groupId = filterState.group?.id,
                         feedId = filterState.feed?.id,
                         isStarred = filterState.filter.isStarred(),
                         isUnread = filterState.filter.isUnread(),
                     )
-                }.flow.cachedIn(viewModelScope)
+                }.flow.flowOn(Dispatchers.IO).cachedIn(viewModelScope)
             )
         }
     }
@@ -81,7 +84,7 @@ data class ArticleViewState(
     val filterImportant: Int = 0,
     val listState: LazyListState = LazyListState(),
     val isRefreshing: Boolean = false,
-    val pagingData: Flow<PagingData<ArticleWithFeed>>? = null,
+    val pagingData: Flow<PagingData<ArticleWithFeed>> = emptyFlow(),
     val syncWorkInfo: String = "",
 )