current-session-subject.js
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current-session-subject.js
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	"use strict";
	const locreq = require("locreq")(__dirname);
	const Promise = require("bluebird");

	const Response = locreq("lib/response/response.js");
	const Errors = locreq("lib/response/error.js");
	const Subject = locreq("lib/subject/subject.js");
	const SuperContext = locreq("lib/super-context.js");

	const CurrentSession = function(app){
	this.app = app;
	};

	CurrentSession.prototype = Object.create(Subject.prototype);

	CurrentSession.prototype.perform_action = function(context, action_name, args){
	const self = this;
	switch (action_name){
	case "delete":
	return self.app.run_action(
	new SuperContext(),
	["collections", "sessions"],
	"show",
	{filter: {"session-id": context.session_id}}
	)
	.each(function(result){
	return self.app.run_action(new SuperContext(), ["collections", "sessions", result.id], "delete");
	})
	.then(function(){
	return self.app.run_action(
	new SuperContext(),
	["collections", "anonymous-sessions"],
	"show",
	{
	filter: {"anonymous-session-id": context.anonymous_session_id},
	}
	);
	})
	.each(function(anon_session){
	return self.app.run_action(new SuperContext(), ["collections", "anonymous-sessions", anon_session.id], "delete");
	})
	.then(function(){
	return Promise.resolve(new Response({}, false, "logged_out", "You've been logged out"));
	})
	.catch(function(error){
	return Promise.reject(new Errors.BadContext("Invalid session id!"));
	});
	default:
	throw new Errors.DeveloperError(`Unknown action ${action_name} for CurrentSession subject.`);
	}
	};

	module.exports = CurrentSession;