/**
 * This file provided by Facebook is for non-commercial testing and evaluation
 * purposes only.  Facebook reserves all rights not expressly granted.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */ import { commitMutation , graphql , } from 'react-relay' ; import { ConnectionHandler , RecordSourceSelectorProxy , Environment , } from 'relay-runtime' ; import { TodoListFooter_viewer } from '../__generated__/TodoListFooter_viewer.graphql' ; const mutation = graphql `
  mutation RemoveCompletedTodosMutation($input: RemoveCompletedTodosInput!) {
    removeCompletedTodos(input: $input) {
      deletedTodoIds,
      viewer {
        completedCount,
        totalCount,
      },
    }
  }
` ; function sharedUpdater ( store , user , deletedIDs ) { const userProxy = store . get ( user . id ) ; const conn = ConnectionHandler . getConnection ( userProxy , 'TodoList_todos' ) ; deletedIDs . forEach ( ( deletedID ) => ConnectionHandler . deleteNode ( conn , deletedID ) ) ; } function commit ( environment , todos , user ) { return commitMutation ( environment , { mutation , variables : { input : { } , } , updater : ( store ) => { const payload = store . getRootField ( 'removeCompletedTodos' ) ! ; sharedUpdater ( store , user , payload . getValue ( 'deletedTodoIds' ) ) ; } , optimisticUpdater : ( store ) => { if ( todos && todos . edges ) { const deletedIDs = todos . edges . filter ( edge => edge ! . node ! . complete ) . map ( edge => edge ! . node ! . id ) ; sharedUpdater ( store , user , deletedIDs ) ; } } , } ) ; } export default { commit } ;