/**
 * 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 { Todo_viewer } from '../__generated__/Todo_viewer.graphql' ; import { Todo_todo } from '../__generated__/Todo_todo.graphql' ; const mutation = graphql `
  mutation RemoveTodoMutation($input: RemoveTodoInput!) {
    removeTodo(input: $input) {
      deletedTodoId,
      viewer {
        completedCount,
        totalCount,
      },
    }
  }
` ; function sharedUpdater ( store , user , deletedID ) { const userProxy = store . get ( user . id ) ; const conn = ConnectionHandler . getConnection ( userProxy , 'TodoList_todos' ) ; ConnectionHandler . deleteNode ( conn , deletedID ) ; } function commit ( environment , todo , user ) { return commitMutation ( environment , { mutation , variables : { input : { id : todo . id } , } , updater : ( store ) => { const payload = store . getRootField ( 'removeTodo' ) ! ; sharedUpdater ( store , user , payload . getValue ( 'deletedTodoId' ) ) ; } , optimisticUpdater : ( store ) => { sharedUpdater ( store , user , todo . id ) ; } , } ) ; } export default { commit } ;