// ==UserScript==
// @name          GitHub Show Repo Issues
// @namespace     github-show-repo-issues
// @description   Show repo issues count on the repository tab & organization page (https://github.com/:user)
// @version       2.1.1
// @include       https://github.com/*
// @grant         GM_addStyle
// @grant         GM_xmlhttpRequest
// @run-at        document-end
// @require       https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js
// @author        Rob Garrison >> http://github.com/Mottie
// @downloadURL none
// ==/UserScript==
/* global jQuery, GM_addStyle, GM_xmlhttpRequest */
( function( unsafeWindow, $ ) {
	'use strict';
	function addIssues() {
		// look for repo tab
		if ( $( '.tabnav-tab.selected' ).length || $( '.repo-list' ).length ) {
			// Does not include forks & only includes the first 10 repos, or first 20 on the
			// organization page - these are the repos showing the participation graphs
			var max = $( '.tabnav-tab.selected' ).length ? 10 : 20,
				$items = $('.repo-list-item')
					.filter(':lt(' + max + ')')
					.filter('.public:not(.fork)')
					.find('a.repo-list-stat-item[aria-label="Forks"]'),
				len = $items.length,

				// bug icon
				img = 'data:image/svg+xml;base64,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',

				// api v3: first 30 issues = https://api.github.com/repos/:user/:repo/issues?state=open
				// issue count = get all repos from user = https://api.github.com/users/:user/repos,
				// then look for "open_issues_count" in the named repo
				api = 'https://api.github.com/users',

				// <a class="repo-list-stat-item tooltipped tooltipped-s" href="/:user/:repo/network" aria-label="Forks">
				//   <span class="octicon octicon-git-branch"></span> 1
				// </a>
				user = ( $items.eq( 0 ).attr( 'href' ) || '' ).match( /^\/[^/]+/ );

			if ( user && user.length ) {

				// add bug image background
				GM_addStyle( '.repo-list-stats a.issues { padding-left: 18px; background: url("'+ img + '") no-repeat 0 2px !important; }' );

				GM_xmlhttpRequest({
					method : 'GET',
					url : api + user[ 0 ] + '/repos',
					onload : function( response ) {
						var itemIndex, repoIndex, repoLen, repo,
							data = $.parseJSON( response.responseText || 'null' );

						if ( data ) {
							repoLen = data.length;
							for ( itemIndex = 0; itemIndex < len; itemIndex++ ) {
								repo = ( $items.eq( itemIndex ).attr( 'href' ) || '' ).replace( '/network', '' ).slice( 1 );

								for ( repoIndex = 0; repoIndex < repoLen; repoIndex++ ) {
									if ( repo === data[ repoIndex ].full_name ) {
										$items.eq( itemIndex ).after(
											'<a class="repo-list-stat-item tooltipped tooltipped-s issues" href="' + repo +
											'issues"  aria-label="Issues"><span></span>' + data[ repoIndex ].open_issues_count + '</a>'
										);
									}
								}

							}
						}
					}
				});

			}
		}
	}

	$(function(){
		// easier to bind to these events than use mutation observer - or maybe I'm just lazy
		unsafeWindow.jQuery( '#js-repo-pjax-container, #js-pjax-container, .js-contribution-activity' )
			.on('pjax:complete', function() {
				addIssues();
			});
	});
	addIssues();

})( typeof unsafeWindow !== 'undefined' ? unsafeWindow : window, jQuery.noConflict( true ) );