;;;(function(exports){'use strict';[['asyncStorage','/shared/js/async_storage.js'],['EventDispatcher','/shared/js/event_dispatcher.js'],['Utils','/views/shared/js/utils.js']].forEach(([dependencyName,dependencyPath])=>{if(!(dependencyName in self)){importScripts(dependencyPath);}});var draftIndex=new Map();var deferredDraftRequest=null;var Drafts={get size(){return draftIndex.size;},init(){InterInstanceEventDispatcher.on('draft-saved',(draft)=>this.request(true).then(()=>this.emit('saved',draft)));InterInstanceEventDispatcher.on('draft-deleted',(draft)=>this.request(true).then(()=>this.emit('deleted',draft)));},add:function(draft){if(!draft||!(draft instanceof Draft)){throw new Error('Draft should be valid Draft instance.');}
this.delete(draft);var drafts=draftIndex.get(draft.threadId)||[];drafts.push(draft);draftIndex.set(draft.threadId,drafts);this.emit('saved',draft);InterInstanceEventDispatcher.emit('draft-saved',draft);return this;},delete:function(draft){if(!draft||!(draft instanceof Draft)){throw new Error('Draft should be valid Draft instance.');}
var drafts=draftIndex.get(draft.threadId);if(!drafts||!drafts.length){return this;}
var isDeleted=false;if(draft.threadId){drafts.length=0;isDeleted=true;}else{var indexToRemove=drafts.findIndex((storedDraft)=>storedDraft.id===draft.id);if(indexToRemove>-1){isDeleted=true;drafts.splice(indexToRemove,1);}}
if(isDeleted){this.emit('deleted',draft);InterInstanceEventDispatcher.emit('draft-deleted',draft);}
return this;},byThreadId:function(threadId){if(!threadId){throw new Error('Thread Id is not defined');}
var threadDrafts=draftIndex.get(threadId);return threadDrafts&&threadDrafts.length?threadDrafts[threadDrafts.length-1]:null;},byDraftId:function(id){id=+id;for(var draft of this.getAllThreadless()){if(draft.id===id){return draft;}}
return null;},getAll:function*(){for(var[threadId,drafts]of draftIndex){yield*threadId?drafts.slice(-1):drafts;}},getAllThreadless:function(){return draftIndex.get(null)||[];},clear:function(){draftIndex=new Map();deferredDraftRequest=null;return this;},store:function(){var defer=Utils.Promise.defer();asyncStorage.setItem('draft index',[...draftIndex],()=>{defer.resolve();});return defer.promise;},request:function(force){if(deferredDraftRequest&&!force){return deferredDraftRequest.promise;}
deferredDraftRequest=Utils.Promise.defer();asyncStorage.getItem('draft index',function(records){records&&records.forEach((record)=>{record[1]=record[1].map((draft)=>new Draft(draft));});draftIndex=new Map(records||[]);deferredDraftRequest.resolve();});return deferredDraftRequest.promise;}};exports.Drafts=EventDispatcher.mixin(Drafts,['saved','deleted']);function Draft(opts){var draft=opts||{};if(draft.id&&typeof draft.id!=='number'){throw new Error('Draft id must be a number');}
this.id=draft.id||guid();this.recipients=draft.recipients||[];this.content=draft.content||[];this.subject=draft.subject||'';this.timestamp=+draft.timestamp||Date.now();this.threadId=draft.threadId||null;this.type=draft.type;this.isEdited=false;}
function guid(){return+(Date.now()+''+(Math.random()*1000|0));}
exports.Draft=Draft;}(this));