import { InterfaceTypeAnnotation } from "@babel/types" ; export type Result = { isSuccess : true ; createdId ? : string ; } | { isSuccess : false ; error : string ; } ; /**
 * A sync to update a Proxy to the Master model's state after a flush. mappedPaths are ID's that
 * got renamed when Create commands resulted in name collisions in the master. Depending on
 * whether the Master has access to history, it may return a full or partial sync that either
 * returns a complete snapshot, or the commands necessary to update the proxy to the master's state.
 */ export type Sync < T extends object > = { mappedPaths ? : Record < string , string [ ] > ; } & ( { isPartial : true ; diff : CompletionBatch ; } | { isPartial : false ; latest : Snapshot < T > ; } ) ; export enum CommandAction { Create = "create" , Update = "update" , Delete = "detete" } export type Command < Props extends object = any > = { path ? : string [ ] ; } & ( { action : CommandAction . Create ; props ? : Props ; parentDefault ? : object ; } | { action : CommandAction . Update ; props ? : Partial < Props > ; } | { action : CommandAction . Delete ; } ) ; export interface CommandCompletion { command : Command < any > ; createdId ? : string ; } export interface CompletionBatch { from : number ; completions : CommandCompletion [ ] ; } export interface Model < T extends object > { getDocument ( ) : T ; getCommandCount ( ) : number ; apply ( command , proposeCreateId ? ) : Result ; } /**
 * Returned by interceptors to either indicate that a command should be rejected with the specified
 * rejection message, or that the command should be applied with different props,
 */ export type CommandInterception = { rejection : string ; } | { newProps : any ; } ; param document param command param batchContext export type Interceptor < T extends object , C = unknown > = ( document : T , command : Command , batchContext ? : C ) => undefined | CommandInterception ; export interface Snapshot < T extends object > { commandCount : number ; document : T ; } export interface CompletionError { action : CommandAction ; path : string [ ] ; errorMessage : string ; }