var request = require('request');
var Promise = require('promise');
var requestPromise = function(url, urlArgs) {
	var promise = new Promise(function(resolve, reject) {
		request({
			url: url,
			qs: urlArgs,
			json: false
		}, function(error, response, body) {
			if(!error && response.statusCode == 200) {
				resolve(JSON.parse(body));
			} else {
				reject(error);
			}
		});
	});
	return promise;
};


/**
 * Pena API module.
 * @module kulmapaikka/penaapi
 */
module.exports = function(config) {
	'use strict';
	return {
		/** Get temperatures from Pena API (Aura) */
		getTemperatures: function(start, stop, limit) {
			
			var d = new Date();
			var urlArgs = {};
			
			if(typeof limit === 'undefined') {
				limit = 20;
			}
			
			if(typeof start !== 'undefined' && typeof stop !== 'undefined') {
				urlArgs.limit = limit;
				urlArgs.start = start;
				urlArgs.stop = stop;
			}
			
			var url = 'http://masa.dy.fi/api/temperature.php';
			
			var promise = requestPromise(url, urlArgs);

			return promise;		
		}
	};
};