/*global mock */

describe("Service Discovery", function () {

    describe("Whenever converse.js queries a server for its features", function () {

        it("stores the features it receives",
            mock.initConverse(
                ['discoInitialized'], {},
                async function (done, _converse) {

            const { u, $iq } = converse.env;
            const IQ_stanzas = _converse.connection.IQ_stanzas;
            const IQ_ids =  _converse.connection.IQ_ids;
            await u.waitUntil(function () {
                return IQ_stanzas.filter(function (iq) {
                    return iq.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]');
                }).length > 0;
            });
            /* <iq type='result'
             *      from='plays.shakespeare.lit'
             *      to='romeo@montague.net/orchard'
             *      id='info1'>
             *  <query xmlns='http://jabber.org/protocol/disco#info'>
             *      <identity
             *          category='server'
             *          type='im'/>
             *      <identity
             *          category='conference'
             *          type='text'
             *          name='Play-Specific Chatrooms'/>
             *      <identity
             *          category='directory'
             *          type='chatroom'
             *          name='Play-Specific Chatrooms'/>
             *      <feature var='http://jabber.org/protocol/disco#info'/>
             *      <feature var='http://jabber.org/protocol/disco#items'/>
             *      <feature var='http://jabber.org/protocol/muc'/>
             *      <feature var='jabber:iq:register'/>
             *      <feature var='jabber:iq:search'/>
             *      <feature var='jabber:iq:time'/>
             *      <feature var='jabber:iq:version'/>
             *  </query>
             *  </iq>
             */
            let stanza = IQ_stanzas.find(function (iq) {
                return iq.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#info"]');
            });
            const info_IQ_id = IQ_ids[IQ_stanzas.indexOf(stanza)];
            stanza = $iq({
                'type': 'result',
                'from': 'montague.lit',
                'to': 'romeo@montague.lit/orchard',
                'id': info_IQ_id
            }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#info'})
                .c('identity', {
                    'category': 'server',
                    'type': 'im'}).up()
                .c('identity', {
                    'category': 'conference',
                    'type': 'text',
                    'name': 'Play-Specific Chatrooms'}).up()
                .c('identity', {
                    'category': 'directory',
                    'type': 'chatroom',
                    'name': 'Play-Specific Chatrooms'}).up()
                .c('feature', {
                    'var': 'http://jabber.org/protocol/disco#info'}).up()
                .c('feature', {
                    'var': 'http://jabber.org/protocol/disco#items'}).up()
                .c('feature', {
                    'var': 'jabber:iq:register'}).up()
                .c('feature', {
                    'var': 'jabber:iq:time'}).up()
                .c('feature', {
                    'var': 'jabber:iq:version'});
            _converse.connection._dataRecv(mock.createRequest(stanza));

            let entities = await _converse.api.disco.entities.get()
            expect(entities.length).toBe(2); // We have an extra entity, which is the user's JID
            expect(entities.get(_converse.domain).features.length).toBe(5);
            expect(entities.get(_converse.domain).identities.length).toBe(3);
            expect(entities.get('montague.lit').features.where({'var': 'jabber:iq:version'}).length).toBe(1);
            expect(entities.get('montague.lit').features.where({'var': 'jabber:iq:time'}).length).toBe(1);
            expect(entities.get('montague.lit').features.where({'var': 'jabber:iq:register'}).length).toBe(1);
            expect(entities.get('montague.lit').features.where(
                {'var': 'http://jabber.org/protocol/disco#items'}).length).toBe(1);
            expect(entities.get('montague.lit').features.where(
                {'var': 'http://jabber.org/protocol/disco#info'}).length).toBe(1);

            await u.waitUntil(function () {
                // Converse.js sees that the entity has a disco#items feature,
                // so it will make a query for it.
                return IQ_stanzas.filter(iq => iq.querySelector('query[xmlns="http://jabber.org/protocol/disco#items"]')).length > 0;
            });
            /* <iq type='result'
             *     from='catalog.shakespeare.lit'
             *     to='romeo@montague.net/orchard'
             *     id='items2'>
             * <query xmlns='http://jabber.org/protocol/disco#items'>
             *     <item jid='people.shakespeare.lit'
             *         name='Directory of Characters'/>
             *     <item jid='plays.shakespeare.lit'
             *         name='Play-Specific Chatrooms'/>
             *     <item jid='mim.shakespeare.lit'
             *         name='Gateway to Marlowe IM'/>
             *     <item jid='words.shakespeare.lit'
             *         name='Shakespearean Lexicon'/>
             *
             *     <item jid='catalog.shakespeare.lit'
             *         node='books'
             *         name='Books by and about Shakespeare'/>
             *     <item jid='catalog.shakespeare.lit'
             *         node='clothing'
             *         name='Wear your literary taste with pride'/>
             *     <item jid='catalog.shakespeare.lit'
             *         node='music'
             *         name='Music from the time of Shakespeare'/>
             * </query>
             * </iq>
             */
            stanza = IQ_stanzas.find(function (iq) {
                return iq.querySelector('iq[to="montague.lit"] query[xmlns="http://jabber.org/protocol/disco#items"]');
            });
            const items_IQ_id = IQ_ids[IQ_stanzas.indexOf(stanza)];
            stanza = $iq({
                'type': 'result',
                'from': 'montague.lit',
                'to': 'romeo@montague.lit/orchard',
                'id': items_IQ_id
            }).c('query', {'xmlns': 'http://jabber.org/protocol/disco#items'})
                .c('item', {
                    'jid': 'people.shakespeare.lit',
                    'name': 'Directory of Characters'}).up()
                .c('item', {
                    'jid': 'plays.shakespeare.lit',
                    'name': 'Play-Specific Chatrooms'}).up()
                .c('item', {
                    'jid': 'words.shakespeare.lit',
                    'name': 'Gateway to Marlowe IM'}).up()

                .c('item', {
                    'jid': 'montague.lit',
                    'node': 'books',
                    'name': 'Books by and about Shakespeare'}).up()
                .c('item', {
                    'node': 'montague.lit',
                    'name': 'Wear your literary taste with pride'}).up()
                .c('item', {
                    'jid': 'montague.lit',
                    'node': 'music',
                    'name': 'Music from the time of Shakespeare'
                });
            _converse.connection._dataRecv(mock.createRequest(stanza));
            await u.waitUntil(() => _converse.disco_entities);
            entities = _converse.disco_entities;
            expect(entities.length).toBe(2); // We have an extra entity, which is the user's JID
            expect(entities.get(_converse.domain).items.length).toBe(3);
            expect(entities.get(_converse.domain).items.pluck('jid').includes('people.shakespeare.lit')).toBeTruthy();
            expect(entities.get(_converse.domain).items.pluck('jid').includes('plays.shakespeare.lit')).toBeTruthy();
            expect(entities.get(_converse.domain).items.pluck('jid').includes('words.shakespeare.lit')).toBeTruthy();
            expect(entities.get(_converse.domain).identities.where({'category': 'conference'}).length).toBe(1);
            expect(entities.get(_converse.domain).identities.where({'category': 'directory'}).length).toBe(1);
            done();
        }));
    });

    describe("Whenever converse.js discovers a new server feature", function () {
       it("emits the serviceDiscovered event",
            mock.initConverse(
                ['discoInitialized'], {},
                function (done, _converse) {

            const { Strophe } = converse.env;
            sinon.spy(_converse.api, "trigger");
            _converse.disco_entities.get(_converse.domain).features.create({'var': Strophe.NS.MAM});
            expect(_converse.api.trigger.called).toBe(true);
            expect(_converse.api.trigger.args[0][0]).toBe('serviceDiscovered');
            expect(_converse.api.trigger.args[0][1].get('var')).toBe(Strophe.NS.MAM);
            done();
        }));
    });
});