/**
 * 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 , Environment , RecordSourceSelectorProxy , } from "relay-runtime" ; import { Todo_todo } from "../__relay_artifacts__/Todo_todo.graphql" ; import { Todo_viewer } from "../__relay_artifacts__/Todo_viewer.graphql" ; import { RemoveTodoMutation } from "../__relay_artifacts__/RemoveTodoMutation.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 < RemoveTodoMutation > ( environment , { mutation , variables : { input : { id : todo . id } , } , updater : store => { const payload = store . getRootField ( "removeTodo" ) ; if ( ! payload ) throw new Error ( "assertion failed" ) ; sharedUpdater ( store , user , payload . getValue ( "deletedTodoId" ) as string ) ; } , optimisticUpdater : store => { sharedUpdater ( store , user , todo . id ) ; } , } ) ; } export default { commit } ;