port HomeFragment to ViewModel and Kotlin flow; update gradle wrapper

app/src/main/java/org/mosad/teapod/util/Utils.kt

@@ -21,6 +21,13 @@ fun Collection<Item>.toItemMediaList(): List<ItemMedia> {
     }
 }
 
+@JvmName("toItemMediaListItem")
+fun List<Item>.toItemMediaList(): List<ItemMedia> {
+    return this.map {
+        ItemMedia(it.id, it.title, it.images.poster_wide[0][0].source)
+    }
+}
+
 @JvmName("toItemMediaListContinueWatchingItem")
 fun Collection<ContinueWatchingItem>.toItemMediaList(): List<ItemMedia> {
     return items.map {

app/src/main/java/org/mosad/teapod/util/adapter/MediaItemListAdapter.kt

@@ -0,0 +1,55 @@
+package org.mosad.teapod.util.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+import org.mosad.teapod.databinding.ItemMediaBinding
+import org.mosad.teapod.util.ItemMedia
+
+class MediaItemListAdapter(private val onClickListener: OnClickListener) : ListAdapter<ItemMedia, MediaItemListAdapter.MediaViewHolder>(DiffCallback) {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MediaViewHolder {
+        return MediaViewHolder(
+            ItemMediaBinding.inflate(
+                LayoutInflater.from(parent.context),
+                parent,
+                false
+            )
+        )
+    }
+
+    override fun onBindViewHolder(holder: MediaViewHolder, position: Int) {
+        val item = getItem(position)
+        holder.binding.root.setOnClickListener {
+            onClickListener.onClick(item)
+        }
+        holder.bind(item)
+    }
+
+    inner class MediaViewHolder(val binding: ItemMediaBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: ItemMedia) {
+            binding.textTitle.text = item.title
+            // can we use the view instead of context here?
+            Glide.with(binding.root.context).load(item.posterUrl).into(binding.imagePoster)
+        }
+    }
+
+    companion object DiffCallback : DiffUtil.ItemCallback<ItemMedia>() {
+        override fun areItemsTheSame(oldItem: ItemMedia, newItem: ItemMedia): Boolean {
+            return oldItem.id == newItem.id
+        }
+
+        override fun areContentsTheSame(oldItem: ItemMedia, newItem: ItemMedia): Boolean {
+            return oldItem == newItem
+        }
+    }
+
+    class OnClickListener(val clickListener: (item: ItemMedia) -> Unit) {
+        fun onClick(item: ItemMedia) = clickListener(item)
+    }
+}