tiny IoC for W8 metro

container.js

(function () {
    "use strict";

    var registry = [];

    function wire(key, constructor) {
        var object = constructor(this);
        registry.push({ key: key, object: object });
    }

    function get(key) {
        var searchResult = registry.filter(function (item) {
            if (item.key == key) {
                return true;
            }
        });
        var object = searchResult[0].object;
        return object;
    }

    // add to namespace
    WinJS.Namespace.define("Container", {
        wire: wire,
        get: get
    });

})();

containerWiring.js

(function () {
    "use strict";

    // mappers
    var feedSectionMapper = new Mappers.FeedSectionMapper();
    var moreSectionsMapper = new Mappers.MoreSectionsMapper();
    var appSectionMapper = new Mappers.AppSectionMapper(feedSectionMapper);
    var feedNewsMapper = new Mappers.FeedNewsMapper(feedSectionMapper);
    var feedVideosMapper = new Mappers.FeedVideosMapper(feedSectionMapper);

    Container.wire("mapper.feedSection", function () { return feedSectionMapper });

    // queries
    var allSectionsQuery = new Queries.AllSectionsQuery(feedSectionMapper, appSectionMapper);
    var queryHomeNoCache = new Queries.HomeNewsQuery(feedNewsMapper, moreSectionsMapper, allSectionsQuery);

    Container.wire("query.allSections", function () { return new Queries.AllSectionsCachedQuery(allSectionsQuery) });
    Container.wire("query.homeNews", function () { return new Queries.HomeNewsCachedQuery(queryHomeNoCache, 1) });
    Container.wire("query.newsBySection", function () { return new Queries.NewsBySectionQuery(feedNewsMapper) });
    Container.wire("query.newsDetail", function () { return new Queries.NewsDetailQuery() });
    Container.wire("query.newsForNavigation", function (c) { return new Queries.NewsForNavigationQuery(c.get("query.newsBySection")) });
    Container.wire("query.search", function () { return new Queries.SearchQuery(queryHomeNoCache) });
    Container.wire("query.search.sugestion", function (c) { return new Queries.SearchSugestionQuery(c.get("query.homeNews")) });
    Container.wire("query.videos", function () { return new Queries.VideosQuery(feedVideosMapper) });
})();

myPage.js

(function () {
    "use strict";

        searchData: function (queryText) {
            var searchQuery = Container.get("query.search");
            return searchQuery.getNews(queryText).then(function (news) {
                ...
            })
        },
        ...
    })
})();

test.js

test("give me my dog", function () {
    Container.wire("myDog", function () { return new Acme.Dog() });
    var myDog = Container.get("myDog");
    equal(myDog.name, "mostro", "Expected: mostro");
});

test("give me my turtle", function () {
    Container.wire("myTurtle", function () { return new Acme.Turtle() });
    var myTurtle = Container.get("myTurtle");
    equal(myTurtle.name, "flash", "Expected: flash");
});

test("give me my dog and my turtle", function () {
    var myDog = Container.get("myDog");
    equal(myDog.name, "mostro", "Expected: mostro");

    var myTurtle = Container.get("myTurtle");
    equal(myTurtle.name, "flash", "Expected: flash");
});

test("give me my pet", function () {
    Container.wire("myPet", function () { return new Acme.Pet("tom") });
    var myPet = Container.get("myPet");
    equal(myPet.name, "tom", "Expected: tom");
});

test("give me owner", function () {
    Container.wire("myOwner", function (c) { return new Acme.Owner(c.get("myPet")) });
    var myOwner = Container.get("myOwner");
    equal(myOwner.pet.name, "tom", "Expected: tom");
});