refactor(MovieListAdapter): 클릭 이벤트 콜백 하나로 합치기

app/src/main/java/woowacourse/movie/view/moviemain/movielist/MovieListAdapter.kt

@@ -14,18 +14,12 @@ class MovieListAdapter(
     private val onItemClick: OnItemClick
 ) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
 
-    interface OnItemClick {
-        fun onMovieClick(movie: MovieUiModel)
-
-        fun onAdClick(ad: MovieAdModel)
-    }
-
-    private val onMovieViewClick: (Int) -> Unit = {
-        onItemClick.onMovieClick(dataList[it] as MovieUiModel)
+    fun interface OnItemClick {
+        fun onClick(item: MovieListModel)
     }
 
-    private val onAdViewClick: (Int) -> Unit = {
-        onItemClick.onAdClick(dataList[it] as MovieAdModel)
+    private val onItemViewClick: (Int) -> Unit = {
+        onItemClick.onClick(dataList[it])
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
@@ -35,15 +29,15 @@ class MovieListAdapter(
                     MovieListViewType.MOVIE_ITEM.id, parent, false
                 )
                 MovieItemViewHolder(MovieItemBinding.bind(view)) {
-                    onMovieViewClick(it)
+                    onItemViewClick(it)
                 }
             }
             MovieListViewType.AD_ITEM -> {
                 val view = LayoutInflater.from(parent.context).inflate(
                     MovieListViewType.AD_ITEM.id, parent, false
                 )
                 MovieAdViewHolder(MovieAdItemBinding.bind(view)) {
-                    onAdViewClick(it)
+                    onItemViewClick(it)
                 }
             }
         }

app/src/main/java/woowacourse/movie/view/moviemain/movielist/MovieListFragment.kt

@@ -31,19 +31,19 @@ class MovieListFragment : Fragment() {
         val dataList = generateMovieListData(movies)
 
         val movieAdapter = MovieListAdapter(
-            dataList = dataList,
-            onItemClick = object : MovieListAdapter.OnItemClick {
-                override fun onMovieClick(movie: MovieListModel.MovieUiModel) {
-                    val intent = ReservationActivity.newIntent(requireContext(), movie)
+            dataList = dataList
+        ) { item ->
+            when (item) {
+                is MovieListModel.MovieUiModel -> {
+                    val intent = ReservationActivity.newIntent(requireContext(), item)
                     startActivity(intent)
                 }
-
-                override fun onAdClick(ad: MovieListModel.MovieAdModel) {
-                    val intent = Intent(Intent.ACTION_VIEW, Uri.parse(ad.url))
+                is MovieListModel.MovieAdModel -> {
+                    val intent = Intent(Intent.ACTION_VIEW, Uri.parse(item.url))
                     startActivity(intent)
                 }
             }
-        )
+        }
         val movieListView = view.findViewById<RecyclerView>(R.id.movie_recyclerview)
         movieListView.adapter = movieAdapter
     }