hipchat-pull-request-bot.js

// Description:
//   Returns the top approvers for the last n  pull requests
//
// Commands:
//   sportsbot pull-me WEB/mobile
//   sportsbot pull-me MIC/apicoreservices 50
//   sportsbot pull-me help
//

var https = require('https');
var _ = require('underscore');

function sortObject(obj) {
	var arr = [];
	for (var prop in obj) {
		if (obj.hasOwnProperty(prop)) {
			arr.push({
				'key': prop,
				'value': obj[prop]
			});
		}
	}
	arr.sort(function(a, b) { return b.value - a.value; });
	//arr.sort(function(a, b) { a.value.toLowerCase().localeCompare(b.value.toLowerCase()); }); //use this to sort as strings
	return arr; // returns array
}

module.exports = function(robot) {

	robot.respond(/pull-me[ ]+([A-Z]{3})\/([a-z_-]+)[ ]*([0-9]*)|pull-me/i, function(msg){

		var project = msg.match[1] || 'WEB';
		var repo = msg.match[2] || 'mobile';
		var limit = msg.match[3] || '100';

		https.get({
			host: 'stash.sbetcorp.com.au',
			port: 443,
			path: '/rest/api/latest/projects/' + project + '/repos/' + repo + '/pull-requests?order=newest&state=MERGED&start=0&limit=' + limit,
			auth: process.env.HUBOT_HIPCHAT_NAME + ':' + process.env.HUBOT_HIPCHAT_PASSWORD
		}, function(response) {

			var reviewers = {};
			var body = '';
			response.on('data', function(d) {
				body += d;
			});
			response.on('end', function() {

				var pull_requests = JSON.parse(body);
				_.each(pull_requests.values, function(pull_request){
					_.each(pull_request.reviewers, function(reviewer){
						if(reviewer.approved) {
							reviewers[reviewer.user.displayName] = (parseInt(reviewers[reviewer.user.displayName], 10) || 0) + 1;
						}
					});
				});

				var topReviewers = '\n';
				_.each(sortObject(reviewers), function(reviewer, i){
					topReviewers = topReviewers + (i+1)  + '. ' +  reviewer.key + ': ' + reviewer.value + '\n';
				});
				msg.reply(topReviewers);
			});
		});
	});

	robot.respond(/pull-me help/i, function(msg){
		var resp =  '\n' 
		+ 'Returns the top approvers for the last 100 pull requests. eg: `sportsbot pull-me WEB/mobile`'
		+ '\n'
		+ 'Returns the top approvers for the last 50 pull requests.  eg: `sportsbot pull-me WEB/mobile 50`';        
		msg.reply(resp);
	});
}