(function () {
'use strict';

var ID = 'view/viewmode';
var DEPS = ['_', '$', 'core/event', 'core/resource', 'core/settings', 'view/sidebar', 'view/topbar', 'view/view'];

describe('module \'' + ID + '\'', function () {

    before(function () {

        this.definition = modulejs._private.definitions[ID];

        this.xEvent = {
            sub: sinon.stub(),
            pub: sinon.stub()
        };
        this.xResource = {
            image: sinon.stub().returns(util.uniqPath('-image.png'))
        };
        this.xSettings = {view: {
            viewmodeToggle: false
        }};
        this.xSidebar = {$el: null};
        this.xTopbar = {$el: null};
        this.xView = {
            $el: null,
            getModes: sinon.stub().returns(['details', 'grid', 'icons']),
            getMode: sinon.stub(),
            setMode: sinon.stub(),
            getSizes: sinon.stub().returns([20, 30, 40]),
            getSize: sinon.stub(),
            setSize: sinon.stub()
        };

        this.applyFn = function () {

            this.xEvent.sub.reset();
            this.xEvent.pub.reset();
            this.xResource.image.reset();
            this.xView.getModes.reset();
            this.xView.getMode.reset();
            this.xView.setMode.reset();
            this.xView.getSizes.reset();
            this.xView.getSize.reset();
            this.xView.setSize.reset();

            return this.definition.fn(_, $, this.xEvent, this.xResource, this.xSettings, this.xSidebar, this.xTopbar, this.xView);
        };
    });

    after(function () {

        util.restoreHtml();
    });

    beforeEach(function () {

        util.restoreHtml();
        this.xSidebar.$el = $('<div id="sidebar"/>').appendTo('body');
        this.xTopbar.$el = $('<div id="topbar"/>').appendTo('body');
        this.xView.$el = $('<div id="view"/>').appendTo('body');
    });

    describe('definition', function () {

        it('is defined', function () {

            assert.isPlainObject(this.definition);
        });

        it('has correct id', function () {

            assert.strictEqual(this.definition.id, ID);
        });

        it('requires correct', function () {

            assert.deepEqual(this.definition.deps, DEPS);
        });

        it('args for each request', function () {

            assert.strictEqual(this.definition.deps.length, this.definition.fn.length);
        });

        it('has no instance', function () {

            assert.notProperty(modulejs._private.instances, ID);
        });

        it('inits without errors', function () {

            this.applyFn();
        });
    });

    describe('application', function () {

        it('returns undefined', function () {

            var instance = this.applyFn();
            assert.isUndefined(instance);
        });

        it('adds HTML #viewmode-settings to #sidebar', function () {

            this.applyFn();
            assert.lengthOf($('#sidebar > #viewmode-settings'), 1);
        });

        it('adds HTML #viewmode-details to #viewmode-settings', function () {

            this.applyFn();
            assert.lengthOf($('#viewmode-settings > #viewmode-details'), 1);
        });

        it('adds HTML #viewmode-grid to #viewmode-settings', function () {

            this.applyFn();
            assert.lengthOf($('#viewmode-settings > #viewmode-grid'), 1);
        });

        it('adds HTML #viewmode-icons to #viewmode-settings', function () {

            this.applyFn();
            assert.lengthOf($('#viewmode-settings > #viewmode-icons'), 1);
        });

        it('adds HTML #viewmode-size to #viewmode-settings', function () {

            this.applyFn();
            assert.lengthOf($('#viewmode-settings > #viewmode-size'), 1);
        });

        it('does not add HTML #viewmode-details, #viewmode-grid, #viewmode-icons when only one mode', function () {

            this.xView.getModes.returns(['details']);
            this.applyFn();
            assert.lengthOf($('#viewmode-details'), 0);
            assert.lengthOf($('#viewmode-grid'), 0);
            assert.lengthOf($('#viewmode-icons'), 0);
        });

        it('does not add HTML #viewmode-size when only one size', function () {

            this.xView.getSizes.returns([20]);
            this.applyFn();
            assert.lengthOf($('#viewmode-size'), 0);
        });
    });

    describe('works', function () {

        it('clicking #viewmode-details triggers view.setMode(\'details\')', function () {

            this.xView.getModes.returns(['details', 'grid', 'icons']);
            this.applyFn();
            $('#viewmode-details').trigger('click');
            assert.isTrue(this.xView.setMode.calledOnce);
            assert.deepEqual(this.xView.setMode.lastCall.args, ['details']);
        });

        it('clicking #viewmode-grid triggers view.setMode(\'grid\')', function () {

            this.xView.getModes.returns(['details', 'grid', 'icons']);
            this.applyFn();
            $('#viewmode-grid').trigger('click');
            assert.isTrue(this.xView.setMode.calledOnce);
            assert.deepEqual(this.xView.setMode.lastCall.args, ['grid']);
        });

        it('clicking #viewmode-icons triggers view.setMode(\'icons\')', function () {

            this.xView.getModes.returns(['details', 'grid', 'icons']);
            this.applyFn();
            $('#viewmode-icons').trigger('click');
            assert.isTrue(this.xView.setMode.calledOnce);
            assert.deepEqual(this.xView.setMode.lastCall.args, ['icons']);
        });

        it('changing #viewmode-size triggers view.setSize(*)', function () {

            this.xView.getSizes.returns([20, 40, 60]);
            this.applyFn();

            $('#viewmode-size').val(0).trigger('change');
            assert.isTrue(this.xView.setSize.calledOnce);
            assert.deepEqual(this.xView.setSize.lastCall.args, [20]);

            $('#viewmode-size').val(1).trigger('change');
            assert.isTrue(this.xView.setSize.calledTwice);
            assert.deepEqual(this.xView.setSize.lastCall.args, [40]);

            $('#viewmode-size').val(2).trigger('change');
            assert.isTrue(this.xView.setSize.calledThrice);
            assert.deepEqual(this.xView.setSize.lastCall.args, [60]);
        });

        it('inputing #viewmode-size triggers view.setSize(*)', function () {

            this.xView.getSizes.returns([20, 40, 60]);
            this.applyFn();

            $('#viewmode-size').val(0).trigger('input');
            assert.isTrue(this.xView.setSize.calledOnce);
            assert.deepEqual(this.xView.setSize.lastCall.args, [20]);

            $('#viewmode-size').val(1).trigger('input');
            assert.isTrue(this.xView.setSize.calledTwice);
            assert.deepEqual(this.xView.setSize.lastCall.args, [40]);

            $('#viewmode-size').val(2).trigger('input');
            assert.isTrue(this.xView.setSize.calledThrice);
            assert.deepEqual(this.xView.setSize.lastCall.args, [60]);
        });
    });
});

}());