feat: Add Explore Page

app/build.gradle.kts

@@ -34,8 +34,8 @@ android {
     applicationId = "com.github.whitescent.mastify"
     minSdk = 21
     targetSdk = 34
-    versionCode = 8
-    versionName = "1.1.4-pre-alpha"
+    versionCode = 9
+    versionName = "1.2.0-pre-alpha"
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     vectorDrawables {
       useSupportLibrary = true

app/src/main/java/com/github/whitescent/mastify/MastifyApp.kt

@@ -44,6 +44,7 @@ class MastifyApp : Application(), ImageLoaderFactory {
         add(VideoFrameDecoder.Factory())
       }
       .placeholder(R.drawable.image_placeholder)
+      .crossfade(true)
       .build()
   }
 

app/src/main/java/com/github/whitescent/mastify/data/model/ui/StatusUiData.kt

@@ -43,7 +43,6 @@ data class StatusUiData(
   val emojis: ImmutableList<Emoji>,
   val attachments: ImmutableList<Status.Attachment>,
   val actionable: Status,
-  val actionableId: String,
   val reblogDisplayName: String,
   val fullname: String,
   val createdAt: String,
@@ -57,6 +56,8 @@ data class StatusUiData(
   val hasUnloadedStatus: Boolean,
 ) {
 
+  val actionableId inline get() = reblog?.id ?: id
+
   val parsedContent: String = Jsoup.parse(content).body().text()
   val isInReplyTo inline get() = inReplyToId != null
 

app/src/main/java/com/github/whitescent/mastify/data/repository/ExploreRepository.kt

@@ -17,61 +17,28 @@
 
 package com.github.whitescent.mastify.data.repository
 
-import androidx.paging.Pager
-import androidx.paging.PagingConfig
-import androidx.paging.PagingData
+import at.connyduck.calladapter.networkresult.NetworkResult
 import at.connyduck.calladapter.networkresult.fold
-import com.github.whitescent.mastify.data.model.ui.StatusUiData
 import com.github.whitescent.mastify.network.MastodonApi
 import com.github.whitescent.mastify.network.model.search.SearchResult
-import com.github.whitescent.mastify.paging.PublicTimelinePagingSource
-import com.github.whitescent.mastify.paging.TrendingPagingSource
-import kotlinx.coroutines.flow.Flow
+import com.github.whitescent.mastify.network.model.trends.News
 import javax.inject.Inject
-import javax.inject.Singleton
 
-@Singleton
 class ExploreRepository @Inject constructor(
   private val api: MastodonApi
 ) {
-
-  suspend fun getPreviewResultsForSearch(keyword: String): SearchPreviewResult {
-    if (keyword.isBlank()) return SearchPreviewResult.Success(null)
+  suspend fun getPreviewResultsForSearch(keyword: String): NetworkResult<SearchResult?> {
+    if (keyword.isBlank()) return NetworkResult.success(null)
     return api.searchSync(query = keyword, limit = 10).fold(
       {
-        SearchPreviewResult.Success(it)
+        NetworkResult.success(it)
       },
       {
         it.printStackTrace()
-        SearchPreviewResult.Failure(it)
+        NetworkResult.failure(it)
       }
     )
   }
 
-  fun getTrendingStatusPager(): Flow<PagingData<StatusUiData>> =
-    Pager(
-      config = PagingConfig(
-        pageSize = 20,
-        enablePlaceholders = false,
-      ),
-      pagingSourceFactory = {
-        TrendingPagingSource(api = api)
-      },
-    ).flow
-
-  fun getPublicTimelinePager(): Flow<PagingData<StatusUiData>> =
-    Pager(
-      config = PagingConfig(
-        pageSize = 20,
-        enablePlaceholders = false,
-      ),
-      pagingSourceFactory = {
-        PublicTimelinePagingSource(api = api)
-      },
-    ).flow
-}
-
-sealed interface SearchPreviewResult {
-  data class Success(val response: SearchResult?) : SearchPreviewResult
-  data class Failure(val exception: Throwable) : SearchPreviewResult
+  suspend fun getNews(): NetworkResult<List<News>> = api.trendingNews(10)
 }

app/src/main/java/com/github/whitescent/mastify/domain/StatusActionHandler.kt

@@ -18,6 +18,7 @@
 package com.github.whitescent.mastify.domain
 
 import android.content.ClipData
+import android.content.ClipboardManager
 import android.content.Context
 import com.github.whitescent.mastify.network.MastodonApi
 import com.github.whitescent.mastify.ui.component.status.StatusSnackbarType
@@ -33,8 +34,7 @@ class StatusActionHandler(private val api: MastodonApi) {
   val snackBarFlow = snackBarChanel.receiveAsFlow()
 
   suspend fun onStatusAction(action: StatusAction, context: Context) {
-    val clipManager =
-      context.getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
+    val clipManager = context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
     when (action) {
       is StatusAction.Favorite -> {
         if (action.favorite) api.favouriteStatus(action.id) else api.unfavouriteStatus(action.id)

app/src/main/java/com/github/whitescent/mastify/mapper/status/StatusMapper.kt

@@ -63,8 +63,9 @@ fun Status.toUiData(): StatusUiData = StatusUiData(
   favouritesCount = reblog?.favouritesCount ?: favouritesCount,
   favorited = reblog?.favorited ?: favorited,
   inReplyToId = reblog?.inReplyToId ?: inReplyToId,
+  // NOTE: make sure that you need to do a conversion whenever you use this property,
+  // otherwise it may cause inconsistencies between StatusUiData and StatusUiData.actionable
   actionable = actionableStatus,
-  actionableId = actionableStatus.id,
   hasUnloadedStatus = hasUnloadedStatus
 )
 

app/src/main/java/com/github/whitescent/mastify/network/InstanceSwitchAuthInterceptor.kt

@@ -46,7 +46,6 @@ class InstanceSwitchAuthInterceptor(private val db: AppDatabase) : Interceptor {
       } else {
         runBlocking {
           val currentAccount = db.accountDao().getActiveAccount()
-          logcat { "currentAccount $currentAccount" }
           if (currentAccount != null) {
             val accessToken = currentAccount.accessToken
             if (accessToken.isNotEmpty()) {

app/src/main/java/com/github/whitescent/mastify/network/MastodonApi.kt

@@ -28,6 +28,7 @@ import com.github.whitescent.mastify.network.model.search.SearchResult
 import com.github.whitescent.mastify.network.model.status.NewStatus
 import com.github.whitescent.mastify.network.model.status.Status
 import com.github.whitescent.mastify.network.model.status.StatusContext
+import com.github.whitescent.mastify.network.model.trends.News
 import retrofit2.Response
 import retrofit2.http.Body
 import retrofit2.http.Field
@@ -96,6 +97,12 @@ interface MastodonApi {
     @Query("offset") offset: Int = 0
   ): Response<List<Status>>
 
+  @GET("api/v1/trends/links")
+  suspend fun trendingNews(
+    @Query("limit") limit: Int? = null,
+    @Query("offset") offset: Int = 0
+  ): NetworkResult<List<News>>
+
   @POST("api/v1/statuses/{id}/bookmark")
   suspend fun bookmarkStatus(
     @Path("id") statusId: String,

app/src/main/java/com/github/whitescent/mastify/network/model/status/Hashtag.kt

@@ -20,4 +20,9 @@ package com.github.whitescent.mastify.network.model.status
 import kotlinx.serialization.Serializable
 
 @Serializable
-data class Hashtag(val name: String, val url: String, val following: Boolean? = null)
+data class Hashtag(
+  val name: String,
+  val url: String,
+  val following: Boolean?,
+  val history: List<History>?
+)

app/src/main/java/com/github/whitescent/mastify/network/model/status/History.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2023 WhiteScent
+ *
+ * This file is a part of Mastify.
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Mastify is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Mastify; if not,
+ * see <http://www.gnu.org/licenses>.
+ */
+
+package com.github.whitescent.mastify.network.model.status
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class History(
+  val day: String,
+  val uses: String,
+  val accounts: String
+)

app/src/main/java/com/github/whitescent/mastify/network/model/trends/News.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2023 WhiteScent
+ *
+ * This file is a part of Mastify.
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Mastify is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Mastify; if not,
+ * see <http://www.gnu.org/licenses>.
+ */
+
+package com.github.whitescent.mastify.network.model.trends
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class News(
+  val url: String,
+  val title: String,
+  val description: String,
+  @SerialName("author_name") val authorname: String,
+  @SerialName("provider_name") val providername: String,
+  @SerialName("published_at") val publishedAt: String?,
+  val image: String,
+  val blurhash: String
+)

app/src/main/java/com/github/whitescent/mastify/paging/Paginator.kt

@@ -17,6 +17,9 @@
 
 package com.github.whitescent.mastify.paging
 
+import com.github.whitescent.mastify.paging.LoadState.Error
+import com.github.whitescent.mastify.paging.LoadState.NotLoading
+
 class Paginator<Key, Item>(
   private val refreshKey: Key,
   private inline val getAppendKey: suspend () -> Key,
@@ -25,7 +28,12 @@ class Paginator<Key, Item>(
   private inline val onRequest: suspend (Key) -> Result<List<Item>>,
   private inline val onSuccess: suspend (loadState: LoadState, items: List<Item>) -> Unit,
 ) : PaginatorInterface<Key, Item> {
-  private var loadState = LoadState.NotLoading
+
+  var loadState = NotLoading
+    private set
+
+  var endReached: Boolean = false
+    private set
 
   override suspend fun append() {
     if (loadState == LoadState.Append) return
@@ -35,16 +43,17 @@ class Paginator<Key, Item>(
       val appendKey = getAppendKey()
       val result = onRequest(appendKey).getOrElse {
         onError(it)
-        loadState = LoadState.Error
+        loadState = Error
         onLoadUpdated(loadState)
         return
       }
+      if (result.isEmpty()) endReached = true
       onSuccess(loadState, result)
-      loadState = LoadState.NotLoading
+      loadState = NotLoading
       onLoadUpdated(loadState)
     } catch (e: Exception) {
       onError(e)
-      loadState = LoadState.Error
+      loadState = Error
       onLoadUpdated(loadState)
       return
     }
@@ -57,16 +66,17 @@ class Paginator<Key, Item>(
     try {
       val result = onRequest(refreshKey).getOrElse {
         onError(it)
-        loadState = LoadState.Error
+        loadState = Error
         onLoadUpdated(loadState)
         return
       }
+      if (result.isEmpty()) endReached = true
       onSuccess(loadState, result)
-      loadState = LoadState.NotLoading
+      loadState = NotLoading
       onLoadUpdated(loadState)
     } catch (e: Exception) {
       onError(e)
-      loadState = LoadState.Error
+      loadState = Error
       onLoadUpdated(loadState)
       return
     }