fix/#220 : immutable state 로 변경

- core:model의 모델을 state로 사용 -> 화면 전용 immutable 모델 선언 및 state 사용

Author: TaewoongR

feature/mygroup/src/main/java/com/boostcamp/mapisode/mygroup/model/GroupUiModel.kt

@@ -0,0 +1,38 @@
+package com.boostcamp.mapisode.mygroup.model
+
+import androidx.compose.runtime.Immutable
+import com.boostcamp.mapisode.model.GroupModel
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.toImmutableList
+import java.util.Date
+
+@Immutable
+data class GroupUiModel(
+	val id: String,
+	val adminUser: String,
+	val createdAt: Date,
+	val description: String,
+	val imageUrl: String,
+	val name: String,
+	val members: ImmutableList<String>,
+) {
+	fun toGroupModel(): GroupModel = GroupModel(
+		id = id,
+		adminUser = adminUser,
+		createdAt = createdAt,
+		description = description,
+		imageUrl = imageUrl,
+		name = name,
+		members = members.toList(),
+	)
+}
+
+fun GroupModel.toGroupUiModel(): GroupUiModel = GroupUiModel(
+	id = id,
+	adminUser = adminUser,
+	createdAt = createdAt,
+	description = description,
+	imageUrl = imageUrl,
+	name = name,
+	members = members.toImmutableList(),
+)

feature/mygroup/src/main/java/com/boostcamp/mapisode/mygroup/screen/GroupDetailScreen.kt

@@ -266,7 +266,7 @@ fun GroupDetailContent(
 					0 -> {
 						if (uiState.group != null) {
 							GroupDetailContent(
-								group = uiState.group,
+								group = uiState.group.toGroupModel(),
 								members = uiState.membersInfo,
 								onIssueCodeClick = onIssueCodeClick,
 								onGroupOutClick = onGroupOutClick,

feature/mygroup/src/main/java/com/boostcamp/mapisode/mygroup/state/GroupDetailState.kt

@@ -1,17 +1,19 @@
 package com.boostcamp.mapisode.mygroup.state
 
 import androidx.compose.runtime.Immutable
-import com.boostcamp.mapisode.model.GroupModel
 import com.boostcamp.mapisode.mygroup.model.GroupUiEpisodeModel
 import com.boostcamp.mapisode.mygroup.model.GroupUiMemberModel
+import com.boostcamp.mapisode.mygroup.model.GroupUiModel
 import com.boostcamp.mapisode.ui.base.UiState
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
 
 @Immutable
 data class GroupDetailState(
 	val isGroupIdCaching: Boolean = true,
 	val isGroupLoading: Boolean = false,
 	val isGroupOwner: Boolean = false,
-	val group: GroupModel? = null,
-	val membersInfo: List<GroupUiMemberModel> = emptyList(),
-	val episodes: List<GroupUiEpisodeModel> = emptyList(),
+	val group: GroupUiModel? = null,
+	val membersInfo: ImmutableList<GroupUiMemberModel> = persistentListOf(),
+	val episodes: ImmutableList<GroupUiEpisodeModel> = persistentListOf(),
 ) : UiState

feature/mygroup/src/main/java/com/boostcamp/mapisode/mygroup/viewmodel/GroupDetailViewModel.kt

@@ -9,10 +9,12 @@ import com.boostcamp.mapisode.mygroup.R
 import com.boostcamp.mapisode.mygroup.intent.GroupDetailIntent
 import com.boostcamp.mapisode.mygroup.model.GroupUiMemberModel
 import com.boostcamp.mapisode.mygroup.model.toGroupUiEpisodeModel
+import com.boostcamp.mapisode.mygroup.model.toGroupUiModel
 import com.boostcamp.mapisode.mygroup.sideeffect.GroupDetailSideEffect
 import com.boostcamp.mapisode.mygroup.state.GroupDetailState
 import com.boostcamp.mapisode.ui.base.BaseViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
@@ -97,7 +99,7 @@ class GroupDetailViewModel @Inject constructor(
 				intent {
 					copy(
 						isGroupLoading = false,
-						group = group,
+						group = group.toGroupUiModel(),
 					)
 				}
 				if (group.adminUser == userPreferenceDataStore.getUserId().first()) {
@@ -154,7 +156,7 @@ class GroupDetailViewModel @Inject constructor(
 
 			intent {
 				copy(
-					membersInfo = memberInfo,
+					membersInfo = memberInfo.toImmutableList(),
 				)
 			}
 		}
@@ -186,7 +188,7 @@ class GroupDetailViewModel @Inject constructor(
 								member.id == it.createdBy
 							}?.name ?: ""
 							it.toGroupUiEpisodeModel(name)
-						},
+						}.toImmutableList(),
 					)
 				}
 			} catch (e: Exception) {