(function(root,factory){if(typeof define==="function"&&define.amd){define(["underscore","backbone"],function(_,Backbone){return factory(_||root._,Backbone||root.Backbone);});}else{factory(_,Backbone);}}(this,function(_,Backbone){function S4(){return(((1+Math.random())*0x10000)|0).toString(16).substring(1);};function guid(){return(S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());};Backbone.LocalStorage=window.Store=function(name){this.name=name;var store=this.localStorage().getItem(this.name);this.records=(store&&store.split(","))||[];};_.extend(Backbone.LocalStorage.prototype,{save:function(){this.localStorage().setItem(this.name,this.records.join(","));},create:function(model){if(!model.id){model.id=guid();model.set(model.idAttribute,model.id);}
this.localStorage().setItem(this.name+"-"+model.id,JSON.stringify(model));this.records.push(model.id.toString());this.save();return this.find(model);},update:function(model){this.localStorage().setItem(this.name+"-"+model.id,JSON.stringify(model));if(!_.include(this.records,model.id.toString()))
this.records.push(model.id.toString());this.save();return this.find(model);},find:function(model){return this.jsonData(this.localStorage().getItem(this.name+"-"+model.id));},findAll:function(){return _(this.records).chain().map(function(id){return this.jsonData(this.localStorage().getItem(this.name+"-"+id));},this).compact().value();},destroy:function(model){if(model.isNew())
return false
this.localStorage().removeItem(this.name+"-"+model.id);this.records=_.reject(this.records,function(id){return id===model.id.toString();});this.save();return model;},localStorage:function(){return localStorage;},jsonData:function(data){return data&&JSON.parse(data);}});Backbone.LocalStorage.sync=window.Store.sync=Backbone.localSync=function(method,model,options){var store=model.localStorage||model.collection.localStorage;var resp,errorMessage,syncDfd=$.Deferred&&$.Deferred();try{switch(method){case"read":resp=model.id!=undefined?store.find(model):store.findAll();break;case"create":resp=store.create(model);break;case"update":resp=store.update(model);break;case"delete":resp=store.destroy(model);break;}}catch(error){if(error.code===DOMException.QUOTA_EXCEEDED_ERR&&window.localStorage.length===0)
errorMessage="Private browsing is unsupported";else
errorMessage=error.message;}
if(resp){if(options&&options.success)
if(Backbone.VERSION==="0.9.10"){options.success(model,resp,options);}else{options.success(resp);}
if(syncDfd)
syncDfd.resolve(resp);}else{errorMessage=errorMessage?errorMessage:"Record Not Found";if(options&&options.error)
if(Backbone.VERSION==="0.9.10"){options.error(model,errorMessage,options);}else{options.error(errorMessage);}
if(syncDfd)
syncDfd.reject(errorMessage);}
if(options&&options.complete)options.complete(resp);return syncDfd&&syncDfd.promise();};Backbone.ajaxSync=Backbone.sync;Backbone.getSyncMethod=function(model){if(model.localStorage||(model.collection&&model.collection.localStorage)){return Backbone.localSync;}
return Backbone.ajaxSync;};Backbone.sync=function(method,model,options){return Backbone.getSyncMethod(model).apply(this,[method,model,options]);};return Backbone.LocalStorage;}));