UI for channel tabs

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

@@ -6,11 +6,13 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import androidx.core.view.children
 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.SubscriptionHelper
+import com.github.libretube.api.obj.ChannelTab
 import com.github.libretube.constants.IntentData
 import com.github.libretube.constants.ShareObjectType
 import com.github.libretube.databinding.FragmentChannelBinding
@@ -18,9 +20,14 @@ import com.github.libretube.extensions.TAG
 import com.github.libretube.extensions.formatShort
 import com.github.libretube.extensions.toID
 import com.github.libretube.ui.adapters.ChannelAdapter
+import com.github.libretube.ui.adapters.SearchAdapter
 import com.github.libretube.ui.base.BaseFragment
 import com.github.libretube.ui.dialogs.ShareDialog
 import com.github.libretube.util.ImageHelper
+import com.google.android.material.chip.Chip
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import retrofit2.HttpException
 import java.io.IOException
 
@@ -35,6 +42,10 @@ class ChannelFragment : BaseFragment() {
     private var isLoading = true
     private var isSubscribed: Boolean? = false
 
+    private var onScrollEnd: () -> Unit = {}
+
+    val scope = CoroutineScope(Dispatchers.IO)
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         arguments?.let {
@@ -73,11 +84,10 @@ class ChannelFragment : BaseFragment() {
                 if (binding.channelScrollView.getChildAt(0).bottom
                     == (binding.channelScrollView.height + binding.channelScrollView.scrollY)
                 ) {
-                    // scroll view is at bottom
-                    if (nextPage != null && !isLoading) {
-                        isLoading = true
-                        binding.channelRefresh.isRefreshing = true
-                        fetchChannelNextPage()
+                    try {
+                        onScrollEnd.invoke()
+                    } catch (e: Exception) {
+                        Log.e("tabs failed", e.toString())
                     }
                 }
             }
@@ -103,6 +113,14 @@ class ChannelFragment : BaseFragment() {
             // needed if the channel gets loaded by the ID
             channelId = response.id
 
+            onScrollEnd = {
+                if (nextPage != null && !isLoading) {
+                    isLoading = true
+                    binding.channelRefresh.isRefreshing = true
+                    fetchChannelNextPage()
+                }
+            }
+
             // fetch and update the subscription status
             isSubscribed = SubscriptionHelper.isSubscribed(channelId!!)
             if (isSubscribed == null) return@launchWhenCreated
@@ -166,17 +184,68 @@ class ChannelFragment : BaseFragment() {
 
                 // recyclerview of the videos by the channel
                 channelAdapter = ChannelAdapter(
-                    response.relatedStreams!!.toMutableList(),
+                    response.relatedStreams.orEmpty().toMutableList(),
                     childFragmentManager
                 )
                 binding.channelRecView.adapter = channelAdapter
             }
 
-            response.tabs?.forEach {
-                try {
-                    RetrofitInstance.api.getChannelTab(it.data!!).toString()
+            binding.videos.setOnClickListener {
+                binding.channelRecView.adapter = channelAdapter
+            }
+
+            response.tabs?.firstOrNull { it.name == "Playlists" }?.let {
+                setupTab(binding.playlists, it)
+            }
+
+            response.tabs?.firstOrNull { it.name == "Channels" }?.let {
+                setupTab(binding.channels, it)
+            }
+
+            response.tabs?.firstOrNull { it.name == "Livestreams" }?.let {
+                setupTab(binding.livestreams, it)
+            }
+
+            response.tabs?.firstOrNull { it.name == "Shorts" }?.let {
+                setupTab(binding.shorts, it)
+            }
+        }
+    }
+
+    private fun setupTab(chip: Chip, tab: ChannelTab) {
+        chip.visibility = View.VISIBLE
+        chip.setOnClickListener {
+            binding.tabChips.children.forEach {
+                if (it != chip) it.isSelected = false
+            }
+            scope.launch {
+                val response = try {
+                    RetrofitInstance.api.getChannelTab(tab.data!!)
                 } catch (e: Exception) {
-                    Log.e("error", e.toString())
+                    return@launch
+                }
+
+                val adapter = SearchAdapter(
+                    response.content.toMutableList(),
+                    childFragmentManager
+                )
+
+                runOnUiThread {
+                    binding.channelRecView.adapter = adapter
+                }
+
+                onScrollEnd = {
+                    if (response.nextpage != null) {
+                        scope.launch {
+                            val newContent = try {
+                                RetrofitInstance.api.getChannelTab(tab.data, response.nextpage)
+                            } catch (e: Exception) {
+                                e.printStackTrace()
+                                null
+                            }
+                            newContent?.content?.let { adapter.updateItems(it) }
+                        }
+                    }
                 }
             }
         }

app/src/main/res/layout/fragment_channel.xml

@@ -115,6 +115,47 @@
                 android:maxLines="2"
                 android:padding="10dp" />
 
+            <HorizontalScrollView
+                android:id="@+id/tab_chips"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:paddingHorizontal="10dp"
+                android:scrollbars="none">
+
+                <com.google.android.material.chip.ChipGroup
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content">
+
+                    <com.google.android.material.chip.Chip
+                        android:id="@+id/videos"
+                        style="@style/channelChip"
+                        android:text="@string/videos"
+                        android:visibility="visible" />
+
+                    <com.google.android.material.chip.Chip
+                        android:id="@+id/playlists"
+                        style="@style/channelChip"
+                        android:text="@string/playlists" />
+
+                    <com.google.android.material.chip.Chip
+                        android:id="@+id/shorts"
+                        style="@style/channelChip"
+                        android:text="@string/yt_shorts" />
+
+                    <com.google.android.material.chip.Chip
+                        android:id="@+id/channels"
+                        style="@style/channelChip"
+                        android:text="@string/channels" />
+
+                    <com.google.android.material.chip.Chip
+                        android:id="@+id/livestreams"
+                        style="@style/channelChip"
+                        android:text="@string/livestreams" />
+
+                </com.google.android.material.chip.ChipGroup>
+
+            </HorizontalScrollView>
+
             <RelativeLayout
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"

app/src/main/res/values/strings.xml

@@ -352,6 +352,7 @@
     <string name="queue">Queue</string>
     <string name="sb_markers">Markers</string>
     <string name="sb_markers_summary">Mark the segments on the time bar.</string>
+    <string name="livestreams">Livestreams</string>
 
     <!-- Notification channel strings -->
     <string name="download_channel_name">Download Service</string>

app/src/main/res/values/style.xml

@@ -179,4 +179,13 @@
         <item name="animationMode">slide</item>
     </style>
 
+    <style name="channelChip" parent="@style/Widget.Material3.Chip.Filter.Elevated">
+
+        <item name="android:layout_width">wrap_content</item>
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:padding">10dp</item>
+        <item name="android:visibility">gone</item>
+
+    </style>
+
 </resources>