"use strict";

angular.module('versions', [])

.controller('DocsVersionsCtrl', ['$scope', '$location', '$window', 'NG_VERSIONS', function($scope, $location, $window, NG_VERSIONS) {

$scope.docs_version = NG_VERSIONS[0];

$scope.docs_versions = NG_VERSIONS;

for (var i = 0, ii = NG_VERSIONS.length, minor = NaN; i < ii; i++) {

var version = NG_VERSIONS[i];

// NaN will give false here

if (minor <= version.minor) {

continue;

}

version.isLatest = true;

minor = version.minor;

}

$scope.getGroupName = getGroupName;

$scope.groupBy = groupBy;

$scope.jumpToDocsVersion = jumpToDocsVersion;

function getGroupName(v) {

return v.isLatest ? 'Latest' : ('v' + v.major + '.' + v.minor + '.x');

}

// TODO(gkalpak): Do we really need this as a "public" function ?

// Would a one-time groupping (in JS) be sufficient ?

function groupBy(items, prop) {

var groupped = {};

var getter = angular.isFunction(prop) ? prop : function(item) { return item[prop]; };

items.forEach(function(item) {

var groupName = getter(item);

var groupList = groupped[groupName] = (groupped[groupName] || []);

groupList.push(item);

});

return groupped;

}

function jumpToDocsVersion(version) {

var currentPagePath = $location.path().replace(/\/$/, '');

// TODO: We need to do some munging of the path for different versions of the API...

$window.location = version.docsUrl + currentPagePath;

}

}]);