/**
 * Copyright 2013 IBM Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

var RED = require("../../red/red");
var Prowl = require('node-prowl');

// pushkey.js just needs to be like (with the quotes)
// module.exports = {prowl:'My-API-KEY'}

try {
	var pushkey = require("../../settings").prowl || require("../../../pushkey.js");
} catch(err) {
	throw new Error("Failed to load Prowl credentials");
}

var prowl = new Prowl(pushkey.prowl);

function ProwlNode(n) {
	RED.nodes.createNode(this,n);
	this.title = n.title;
	this.priority = n.priority * 1;
	if (this.priority > 2) this.priority = 2;
	if (this.priority < -2) this.priority = -2;
	var node = this;
	this.on("input",function(msg) {
		var titl = this.title||msg.topic||"Node-RED";
		var pri = msg.priority||this.priority;
		if (typeof(msg.payload) == 'object') {
			msg.payload = JSON.stringify(msg.payload);
		}
		try {
			prowl.push(msg.payload, titl, { priority: pri }, function( err, remaining ){
				if ( err ) node.error(err);
				node.log( remaining + ' calls to Prowl api during current hour.' );
			});
		}
		catch (err) {
			node.error(err);
		}
	});
}

RED.nodes.registerType("prowl",ProwlNode);