改包名com.aiosman.ravenow

app/src/main/java/com/aiosman/ravenow/entity/Comment.kt

@@ -0,0 +1,64 @@
+package com.aiosman.ravenow.entity
+
+import androidx.paging.PagingSource
+import androidx.paging.PagingState
+import com.aiosman.ravenow.data.CommentRemoteDataSource
+import com.aiosman.ravenow.data.NoticePost
+import java.util.Date
+
+data class CommentEntity(
+    val id: Int,
+    val name: String,
+    val comment: String,
+    val date: Date,
+    val likes: Int,
+    val postId: Int = 0,
+    val avatar: String,
+    val author: Long,
+    var liked: Boolean,
+    var unread: Boolean = false,
+    var post: NoticePost?,
+    var reply: List<CommentEntity>,
+    var replyUserId: Long?,
+    var replyUserNickname: String?,
+    var replyUserAvatar: String?,
+    var parentCommentId: Int?,
+    var replyCount: Int,
+    var replyPage: Int = 1
+)
+
+class CommentPagingSource(
+    private val remoteDataSource: CommentRemoteDataSource,
+    private val postId: Int? = null,
+    private val postUser: Int? = null,
+    private val selfNotice: Boolean? = null,
+    private val order: String? = null,
+    private val parentCommentId: Int? = null
+) : PagingSource<Int, CommentEntity>() {
+    override suspend fun load(params: LoadParams<Int>): LoadResult<Int, CommentEntity> {
+        return try {
+            val currentPage = params.key ?: 1
+            val comments = remoteDataSource.getComments(
+                pageNumber = currentPage,
+                postId = postId,
+                postUser = postUser,
+                selfNotice = selfNotice,
+                order = order,
+                parentCommentId = parentCommentId,
+                pageSize = params.loadSize
+            )
+            LoadResult.Page(
+                data = comments.list,
+                prevKey = if (currentPage == 1) null else currentPage - 1,
+                nextKey = if (comments.list.isEmpty()) null else comments.page + 1
+            )
+        } catch (exception: Exception) {
+            return LoadResult.Error(exception)
+        }
+    }
+
+    override fun getRefreshKey(state: PagingState<Int, CommentEntity>): Int? {
+        return state.anchorPosition
+    }
+
+}