Coverage Summary for Class: AdapterMutationFailure (kr.open.library.simple_ui.xml.ui.adapter.common)

 package kr.open.library.simple_ui.xml.ui.adapter.common
 
 import androidx.recyclerview.widget.RecyclerView
 import kr.open.library.simple_ui.core.logcat.Logx
 import kr.open.library.simple_ui.xml.ui.adapter.common.thread.assertAdapterMainThread
 
 /**
  * Shared validator for adapter data operations.<br><br>
  * 어댑터 데이터 연산의 공통 검증기입니다.<br>
  */
 internal enum class AdapterMutationFailure {
     EMPTY_INPUT,
     INVALID_POSITION,
     ITEM_NOT_FOUND,
     NO_MATCHING_ITEMS,
 }
 
 internal class AdapterCommonDataLogic<ITEM> {
     /**
      * Validates add-at operation and executes work only when valid.<br><br>
      * 위치 기반 단건 추가 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateAddItemAt(position: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateAddItemAt")
         return if (position < 0 || position > itemCount) {
             Logx.e("Cannot add item at position $position. Valid range: 0..$itemCount")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Validates append-many operation and executes work only when valid.<br><br>
      * 다건 append 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateAddItems(itemList: List<ITEM>): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateAddItems")
         return if (itemList.isEmpty()) {
             Logx.e("Cannot add empty list")
             AdapterMutationFailure.EMPTY_INPUT
         } else {
             null
         }
     }
 
     /**
      * Validates insert-many operation and executes work only when valid.<br><br>
      * 다건 삽입 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateAddItemsAt(itemList: List<ITEM>, position: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateAddItemsAt")
         return if (itemList.isEmpty()) {
             Logx.e("Cannot add empty list")
             AdapterMutationFailure.EMPTY_INPUT
         } else if (position < 0 || position > itemCount) {
             Logx.e("Cannot add items at position $position. Valid range: 0..$itemCount")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Validates remove-by-item operation and executes work only when valid.<br><br>
      * 단건 아이템 제거 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateRemoveItem(item: ITEM, currentList: List<ITEM>): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateRemoveItem")
         return if (!currentList.contains(item)) {
             Logx.e("Item not found in the list")
             AdapterMutationFailure.ITEM_NOT_FOUND
         } else {
             null
         }
     }
 
     /**
      * Validates remove-many operation and executes work only when valid.<br><br>
      * 다건 아이템 제거 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateRemoveItems(items: List<ITEM>, currentList: List<ITEM>): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateRemoveItems")
         if (items.isEmpty()) {
             Logx.e("Cannot remove empty list")
             return AdapterMutationFailure.EMPTY_INPUT
         }
         val currentSet = currentList.toHashSet()
         return if (items.none { it in currentSet }) {
             Logx.e("No matching items found in the list")
             AdapterMutationFailure.NO_MATCHING_ITEMS
         } else {
             null
         }
     }
 
     /**
      * Validates remove-at operation and executes work only when valid.<br><br>
      * 위치 기반 단건 제거 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateRemoveItemAt(position: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateRemoveItemAt")
         return if (position < 0 || position >= itemCount) {
             Logx.e("Cannot remove item at position $position. Valid range: 0..${itemCount - 1}")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Validates remove-range(start, count) and executes work only when valid.<br><br>
      * 구간 제거(start, count) 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateRemoveRange(start: Int, count: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateRemoveRange")
         return if (count <= 0) {
             Logx.e("Cannot remove range, count must be positive. count: $count")
             AdapterMutationFailure.INVALID_POSITION
         } else if (start < 0 || start >= itemCount) {
             Logx.e("Cannot remove range from start $start. Valid range: 0..${itemCount - 1}")
             AdapterMutationFailure.INVALID_POSITION
         } else if (count > itemCount - start) {
             Logx.e("Cannot remove range start=$start, count=$count. Valid max count: ${itemCount - start}")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Validates move operation and executes work only when valid.<br><br>
      * 이동 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateMoveItem(fromPosition: Int, toPosition: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateMoveItem")
         return if (fromPosition < 0 || fromPosition >= itemCount) {
             Logx.e("Invalid fromPosition $fromPosition. Valid range: 0 until $itemCount")
             AdapterMutationFailure.INVALID_POSITION
         } else if (toPosition < 0 || toPosition >= itemCount) {
             Logx.e("Invalid toPosition $toPosition. Valid range: 0 until $itemCount")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Validates replace-at operation and executes work only when valid.<br><br>
      * 위치 기반 교체 연산을 검증하고 유효할 때만 작업을 수행합니다.<br>
      */
     internal fun validateReplaceItemAt(position: Int, itemCount: Int): AdapterMutationFailure? {
         assertAdapterMainThread("AdapterCommonDataLogic.validateReplaceItemAt")
         return if (position < 0 || position >= itemCount) {
             Logx.e("Invalid position $position. Valid range: 0 until $itemCount")
             AdapterMutationFailure.INVALID_POSITION
         } else {
             null
         }
     }
 
     /**
      * Checks whether a position is inside valid adapter bounds.<br><br>
      * 위치가 유효한 어댑터 범위 내인지 확인합니다.<br>
      */
     internal fun isPositionValid(position: Int, itemCount: Int): Boolean =
         position > RecyclerView.NO_POSITION && position < itemCount
 }