feat(chat): 채팅방 목록 Adapter를 추가한다

2026-06-10 13:25:41 +09:00
parent 5574e68b16
commit 346671b3e2
2 changed files with 233 additions and 0 deletions
--- a/app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/ui/ChatRoomListAdapter.kt
+++ b/app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/ui/ChatRoomListAdapter.kt
@@ -0,0 +1,86 @@
+package kr.co.vividnext.sodalive.v2.main.chat.ui
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.RecyclerView
+import coil.transform.CircleCropTransformation
+import coil.transform.Transformation
+import kr.co.vividnext.sodalive.R
+import kr.co.vividnext.sodalive.extensions.loadUrl
+import kr.co.vividnext.sodalive.v2.main.chat.model.ChatRoomListUiItem
+import kr.co.vividnext.sodalive.v2.main.chat.model.formatChatRoomLastMessageTime
+
+class ChatRoomListAdapter(
+    private val onItemClick: (ChatRoomListUiItem) -> Unit
+) : RecyclerView.Adapter<ChatRoomListAdapter.ChatRoomViewHolder>() {
+
+    companion object {
+        fun profileImageTransformations(): List<Transformation> = listOf(CircleCropTransformation())
+    }
+
+    private var items: List<ChatRoomListUiItem> = emptyList()
+
+    fun submitItems(newItems: List<ChatRoomListUiItem>) {
+        val diffResult = DiffUtil.calculateDiff(ChatRoomDiffCallback(items, newItems))
+        items = newItems
+        diffResult.dispatchUpdatesTo(this)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ChatRoomViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.item_v2_chat_room, parent, false)
+        return ChatRoomViewHolder(view, onItemClick)
+    }
+
+    override fun onBindViewHolder(holder: ChatRoomViewHolder, position: Int) {
+        holder.bind(items[position])
+    }
+
+    override fun getItemCount(): Int = items.size
+
+    private class ChatRoomDiffCallback(
+        private val oldList: List<ChatRoomListUiItem>,
+        private val newList: List<ChatRoomListUiItem>
+    ) : DiffUtil.Callback() {
+        override fun getOldListSize(): Int = oldList.size
+        override fun getNewListSize(): Int = newList.size
+        override fun areItemsTheSame(oldPos: Int, newPos: Int): Boolean =
+            oldList[oldPos].roomId == newList[newPos].roomId
+        override fun areContentsTheSame(oldPos: Int, newPos: Int): Boolean =
+            oldList[oldPos] == newList[newPos]
+    }
+
+    class ChatRoomViewHolder(
+        itemView: View,
+        private val onItemClick: (ChatRoomListUiItem) -> Unit
+    ) : RecyclerView.ViewHolder(itemView) {
+
+        private val ivProfile = itemView.findViewById<ImageView>(R.id.iv_profile)
+        private val tvName = itemView.findViewById<TextView>(R.id.tv_name)
+        private val tvDirectBadge = itemView.findViewById<TextView>(R.id.tv_direct_badge)
+        private val tvTime = itemView.findViewById<TextView>(R.id.tv_time)
+        private val tvLastMessage = itemView.findViewById<TextView>(R.id.tv_last_message)
+
+        fun bind(item: ChatRoomListUiItem) {
+            ivProfile.loadUrl(item.targetImageUrl) {
+                transformations(profileImageTransformations())
+            }
+            tvName.text = item.targetName
+            tvLastMessage.text = item.lastMessage
+            tvTime.text = formatChatRoomLastMessageTime(
+                itemView.context,
+                item.lastMessageAt
+            )
+            tvDirectBadge.visibility = if (item.showDirectBadge) {
+                View.VISIBLE
+            } else {
+                View.GONE
+            }
+            itemView.setOnClickListener { onItemClick(item) }
+        }
+    }
+}
--- a/app/src/test/java/kr/co/vividnext/sodalive/v2/main/chat/ChatRoomListAdapterTest.kt
+++ b/app/src/test/java/kr/co/vividnext/sodalive/v2/main/chat/ChatRoomListAdapterTest.kt
@@ -0,0 +1,147 @@
+package kr.co.vividnext.sodalive.v2.main.chat
+
+import android.app.Application
+import android.view.View
+import android.widget.FrameLayout
+import android.widget.TextView
+import coil.transform.CircleCropTransformation
+import kr.co.vividnext.sodalive.R
+import kr.co.vividnext.sodalive.common.ImageLoaderProvider
+import kr.co.vividnext.sodalive.v2.main.chat.model.ChatRoomListUiItem
+import kr.co.vividnext.sodalive.v2.main.chat.model.ChatRoomType
+import kr.co.vividnext.sodalive.v2.main.chat.model.formatChatRoomLastMessageTime
+import kr.co.vividnext.sodalive.v2.main.chat.ui.ChatRoomListAdapter
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+import org.robolectric.annotation.Config
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [28], application = Application::class)
+class ChatRoomListAdapterTest {
+
+    @Before
+    fun setUp() {
+        if (!ImageLoaderProvider.isInitialized) {
+            ImageLoaderProvider.init(RuntimeEnvironment.getApplication())
+        }
+    }
+
+    private fun createItem(
+        chatType: ChatRoomType = ChatRoomType.AI,
+        roomId: Long = 1L,
+        targetName: String = "테스트",
+        targetImageUrl: String = "https://example.com/img.png",
+        lastMessage: String = "안녕하세요",
+        lastMessageAt: String = "2026-06-09T12:00:00+09:00",
+        showDirectBadge: Boolean = chatType == ChatRoomType.DM
+    ) = ChatRoomListUiItem(
+        roomId = roomId,
+        chatType = chatType,
+        targetName = targetName,
+        targetImageUrl = targetImageUrl,
+        lastMessage = lastMessage,
+        lastMessageAt = lastMessageAt,
+        showDirectBadge = showDirectBadge
+    )
+
+    private fun bindHolder(
+        adapter: ChatRoomListAdapter,
+        position: Int
+    ): View {
+        val context = RuntimeEnvironment.getApplication()
+        val parent = FrameLayout(context)
+        val holder = adapter.onCreateViewHolder(parent, 0)
+        adapter.onBindViewHolder(holder, position)
+        return holder.itemView
+    }
+
+    @Test
+    fun `DM item bind 시 Direct badge가 VISIBLE이다`() {
+        val adapter = ChatRoomListAdapter {}
+        adapter.submitItems(listOf(createItem(chatType = ChatRoomType.DM)))
+
+        val itemView = bindHolder(adapter, 0)
+        val badge = itemView.findViewById<TextView>(R.id.tv_direct_badge)
+        assertEquals(View.VISIBLE, badge.visibility)
+    }
+
+    @Test
+    fun `AI item bind 시 Direct badge가 GONE이다`() {
+        val adapter = ChatRoomListAdapter {}
+        adapter.submitItems(listOf(createItem(chatType = ChatRoomType.AI)))
+
+        val itemView = bindHolder(adapter, 0)
+        val badge = itemView.findViewById<TextView>(R.id.tv_direct_badge)
+        assertEquals(View.GONE, badge.visibility)
+    }
+
+    @Test
+    fun `name과 lastMessage가 TextView에 표시된다`() {
+        val item = createItem(
+            targetName = "캐릭터A",
+            lastMessage = "반갑습니다"
+        )
+        val adapter = ChatRoomListAdapter {}
+        adapter.submitItems(listOf(item))
+
+        val itemView = bindHolder(adapter, 0)
+        val tvName = itemView.findViewById<TextView>(R.id.tv_name)
+        val tvLastMessage = itemView.findViewById<TextView>(R.id.tv_last_message)
+        assertEquals("캐릭터A", tvName.text.toString())
+        assertEquals("반갑습니다", tvLastMessage.text.toString())
+    }
+
+    @Test
+    fun `lastMessageAt이 시간 포맷 문자열로 변환되어 표시된다`() {
+        val item = createItem(lastMessageAt = "2026-06-09T12:00:00+09:00")
+        val context = RuntimeEnvironment.getApplication()
+        val adapter = ChatRoomListAdapter {}
+        adapter.submitItems(listOf(item))
+
+        val itemView = bindHolder(adapter, 0)
+        val tvTime = itemView.findViewById<TextView>(R.id.tv_time)
+        val expected = formatChatRoomLastMessageTime(context, item.lastMessageAt)
+        assertEquals(expected, tvTime.text.toString())
+    }
+
+    @Test
+    fun `profile image는 원형 변환을 사용한다`() {
+        val transformations = ChatRoomListAdapter.profileImageTransformations()
+
+        assertEquals(1, transformations.size)
+        assertEquals(CircleCropTransformation::class, transformations.first()::class)
+    }
+
+    @Test
+    fun `item 클릭 시 bound ChatRoomListUiItem을 listener로 전달한다`() {
+        var clickedItem: ChatRoomListUiItem? = null
+        val item = createItem(roomId = 42L)
+        val adapter = ChatRoomListAdapter { clickedItem = it }
+        adapter.submitItems(listOf(item))
+
+        val itemView = bindHolder(adapter, 0)
+        itemView.performClick()
+        assertEquals(42L, clickedItem?.roomId)
+    }
+
+    @Test
+    fun `layout에 unread dot id가 존재하지 않는다`() {
+        val adapter = ChatRoomListAdapter {}
+        adapter.submitItems(listOf(createItem()))
+
+        val itemView = bindHolder(adapter, 0)
+        val unreadDot = itemView.findViewById<View>(
+            itemView.resources.getIdentifier(
+                "iv_unread_dot",
+                "id",
+                itemView.context.packageName
+            )
+        )
+        assertNull(unreadDot)
+    }
+}