Show the comment and reply count in the comments sheet

app/src/main/java/com/github/libretube/api/obj/CommentsPage.kt

@@ -6,5 +6,6 @@ import kotlinx.serialization.Serializable
 data class CommentsPage(
     var comments: List<Comment> = emptyList(),
     val disabled: Boolean = false,
-    val nextpage: String? = null
+    val nextpage: String? = null,
+    val commentCount: Long = 0
 )

app/src/main/java/com/github/libretube/ui/fragments/CommentsMainFragment.kt

@@ -10,6 +10,7 @@ import androidx.fragment.app.activityViewModels
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.github.libretube.R
 import com.github.libretube.databinding.FragmentCommentsBinding
+import com.github.libretube.extensions.formatShort
 import com.github.libretube.ui.adapters.CommentsAdapter
 import com.github.libretube.ui.models.CommentsViewModel
 import com.github.libretube.ui.sheets.CommentsSheet
@@ -57,6 +58,10 @@ class CommentsMainFragment : Fragment() {
                 viewModel.fetchNextComments()
             }
         }
+        (parentFragment as CommentsSheet).updateFragmentInfo(
+            false,
+            getString(R.string.comments)
+        )
 
         commentsAdapter = CommentsAdapter(
             this,
@@ -77,12 +82,16 @@ class CommentsMainFragment : Fragment() {
 
         // listen for new comments to be loaded
         viewModel.commentsPage.observe(viewLifecycleOwner) {
-            it ?: return@observe
+            if (it == null) return@observe
             binding.progress.visibility = View.GONE
             if (it.disabled) {
                 binding.errorTV.visibility = View.VISIBLE
                 return@observe
             }
+            (parentFragment as CommentsSheet).updateFragmentInfo(
+                false,
+                "${getString(R.string.comments)} (${it.commentCount.formatShort()})"
+            )
             if (it.comments.isEmpty()) {
                 binding.errorTV.text = getString(R.string.no_comments_available)
                 binding.errorTV.visibility = View.VISIBLE

app/src/main/java/com/github/libretube/ui/fragments/CommentsRepliesFragment.kt

@@ -10,16 +10,19 @@ import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
+import com.github.libretube.R
 import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.api.obj.Comment
 import com.github.libretube.api.obj.CommentsPage
 import com.github.libretube.constants.IntentData
 import com.github.libretube.databinding.FragmentCommentsBinding
 import com.github.libretube.extensions.TAG
+import com.github.libretube.extensions.formatShort
 import com.github.libretube.extensions.parcelable
 import com.github.libretube.ui.adapters.CommentsAdapter
 import com.github.libretube.ui.extensions.filterNonEmptyComments
 import com.github.libretube.ui.models.CommentsViewModel
+import com.github.libretube.ui.sheets.CommentsSheet
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -58,6 +61,10 @@ class CommentsRepliesFragment : Fragment() {
         ) {
             viewModel.commentsSheetDismiss?.invoke()
         }
+        (parentFragment as CommentsSheet).updateFragmentInfo(
+            true,
+            "${getString(R.string.replies)} (${comment.replyCount.formatShort()})"
+        )
 
         binding.commentsRV.updatePadding(top = 0)
         binding.commentsRV.layoutManager = LinearLayoutManager(context)

app/src/main/java/com/github/libretube/ui/sheets/CommentsSheet.kt

@@ -9,11 +9,11 @@ import android.view.View
 import android.view.ViewGroup
 import android.view.ViewTreeObserver
 import android.view.WindowManager
+import androidx.core.view.isVisible
 import androidx.fragment.app.activityViewModels
 import com.github.libretube.R
 import com.github.libretube.databinding.CommentsSheetBinding
 import com.github.libretube.ui.fragments.CommentsMainFragment
-import com.github.libretube.ui.fragments.CommentsRepliesFragment
 import com.github.libretube.ui.models.CommentsViewModel
 
 class CommentsSheet : ExpandedBottomSheet() {
@@ -58,11 +58,8 @@ class CommentsSheet : ExpandedBottomSheet() {
         }
 
         childFragmentManager.apply {
-            addOnBackStackChangedListener(this@CommentsSheet::onFragmentChanged)
-
             beginTransaction()
                 .replace(R.id.commentFragContainer, CommentsMainFragment())
-                .runOnCommit(this@CommentsSheet::onFragmentChanged)
                 .commit()
         }
 
@@ -76,20 +73,9 @@ class CommentsSheet : ExpandedBottomSheet() {
         }
     }
 
-    private fun onFragmentChanged() {
+    fun updateFragmentInfo(showBackButton: Boolean, title: String) {
-        childFragmentManager.findFragmentById(R.id.commentFragContainer)?.let {
+        binding.btnBack.isVisible = showBackButton
-            when (it) {
+        binding.commentsTitle.text = title
-                is CommentsRepliesFragment -> {
-                    binding.btnBack.visibility = View.VISIBLE
-                    binding.commentsTitle.text = getString(R.string.replies)
-                }
-
-                else -> {
-                    binding.btnBack.visibility = View.GONE
-                    binding.commentsTitle.text = getString(R.string.comments)
-                }
-            }
-        }
     }
 
     override fun onDismiss(dialog: DialogInterface) {