feat(dm): recipientId 계약을 추가한다

app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/dm/data/DmChatModels.kt

@@ -5,7 +5,8 @@ import com.google.gson.annotations.SerializedName
 
 @Keep
 data class CreateDmChatRoomRequest(
-    @SerializedName("creatorId") val creatorId: Long
+    @SerializedName("recipientId") val recipientId: Long? = null,
+    @SerializedName("creatorId") val creatorId: Long? = null
 )
 
 @Keep

app/src/main/java/kr/co/vividnext/sodalive/v2/main/chat/dm/data/DmChatRepository.kt

@@ -18,6 +18,14 @@ class DmChatRepository(
         request = CreateDmChatRoomRequest(creatorId = creatorId)
     )
 
+    fun createOrGetRoomByRecipientId(
+        token: String,
+        recipientId: Long
+    ): Single<ApiResponse<CreateDmChatRoomResponse>> = api.createDmChatRoom(
+        authHeader = bearer(token),
+        request = CreateDmChatRoomRequest(recipientId = recipientId)
+    )
+
     fun openRoom(
         token: String,
         roomId: Long,

app/src/test/java/kr/co/vividnext/sodalive/v2/main/chat/dm/DmChatRepositoryTest.kt

@@ -1,5 +1,7 @@
 package kr.co.vividnext.sodalive.v2.main.chat.dm
 
+import com.google.gson.Gson
+import com.google.gson.JsonParser
 import io.reactivex.rxjava3.core.Single
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.v2.main.chat.dm.data.CreateDmChatRoomRequest
@@ -27,6 +29,7 @@ import org.junit.Test
 
 class DmChatRepositoryTest {
 
+    private val gson = Gson()
     private val api = FakeDmChatApi()
     private val socketFactory = FakeWebSocketFactory()
     private val socketClient = DmChatSocketClient(
@@ -45,6 +48,32 @@ class DmChatRepositoryTest {
         assertEquals(CreateDmChatRoomRequest(creatorId = 11L), api.lastCreateRequest)
     }
 
+    @Test
+    fun `리스너 DM 생성 request는 recipientId만 직렬화한다`() {
+        val json = gson.toJson(CreateDmChatRoomRequest(recipientId = 22L))
+        val jsonObject = JsonParser.parseString(json).asJsonObject
+
+        assertEquals(22L, jsonObject.get("recipientId").asLong)
+        assertFalse(jsonObject.has("creatorId"))
+    }
+
+    @Test
+    fun `createOrGetRoomByRecipientId는 bearer header와 recipientId를 API에 위임한다`() {
+        repository.createOrGetRoomByRecipientId(token = "test-token", recipientId = 22L).blockingGet()
+
+        assertEquals("Bearer test-token", api.lastAuthHeader)
+        assertEquals(CreateDmChatRoomRequest(recipientId = 22L), api.lastCreateRequest)
+    }
+
+    @Test
+    fun `크리에이터 채널 DM 생성 request는 creatorId만 직렬화한다`() {
+        val json = gson.toJson(CreateDmChatRoomRequest(creatorId = 11L))
+        val jsonObject = JsonParser.parseString(json).asJsonObject
+
+        assertEquals(11L, jsonObject.get("creatorId").asLong)
+        assertFalse(jsonObject.has("recipientId"))
+    }
+
     @Test
     fun `openRoom은 기본 limit 20과 bearer header를 API에 위임한다`() {
         repository.openRoom(token = "test-token", roomId = 12L).blockingGet()