/*
 * Copyright 2014-present Open Networking Laboratory
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 ONOS GUI -- Util -- General Purpose Functions - Unit Tests
 */
describe('factory: fw/util/fn.js', function() {
    var $window,
        $log,
        fs,
        someFunction = function () {},
        someArray = [1, 2, 3],
        someObject = { foo: 'bar'},
        someNumber = 42,
        someString = 'xyyzy',
        someDate = new Date(),
        stringArray = ['foo', 'bar'];

    beforeEach(module('onosUtil'));

    var mockWindow = {
        innerWidth: 400,
        innerHeight: 200,
        navigator: {
            userAgent: 'defaultUA'
        }
    };

    var mockLog = {
        debug: function () {},
        info: function () {},
        warn: function () {},
        error: function () {}
    };

    beforeEach(function () {
        module(function ($provide) {
            $provide.value('$window', mockWindow);
            $provide.value('$log', mockLog);
        });
    });

    beforeEach(inject(function (_$log_, _$window_, FnService) {
        $log = _$log_;
        $window = _$window_;
        fs = FnService;
    }));

    // === Tests for isF()
    it('isF(): null for undefined', function () {
        expect(fs.isF(undefined)).toBeNull();
    });
    it('isF(): null for null', function () {
        expect(fs.isF(null)).toBeNull();
    });
    it('isF(): the reference for function', function () {
        expect(fs.isF(someFunction)).toBe(someFunction);
    });
    it('isF(): null for string', function () {
        expect(fs.isF(someString)).toBeNull();
    });
    it('isF(): null for number', function () {
        expect(fs.isF(someNumber)).toBeNull();
    });
    it('isF(): null for Date', function () {
        expect(fs.isF(someDate)).toBeNull();
    });
    it('isF(): null for array', function () {
        expect(fs.isF(someArray)).toBeNull();
    });
    it('isF(): null for object', function () {
        expect(fs.isF(someObject)).toBeNull();
    });


    // === Tests for isA()
    it('isA(): null for undefined', function () {
        expect(fs.isA(undefined)).toBeNull();
    });
    it('isA(): null for null', function () {
        expect(fs.isA(null)).toBeNull();
    });
    it('isA(): null for function', function () {
        expect(fs.isA(someFunction)).toBeNull();
    });
    it('isA(): null for string', function () {
        expect(fs.isA(someString)).toBeNull();
    });
    it('isA(): null for number', function () {
        expect(fs.isA(someNumber)).toBeNull();
    });
    it('isA(): null for Date', function () {
        expect(fs.isA(someDate)).toBeNull();
    });
    it('isA(): the reference for array', function () {
        expect(fs.isA(someArray)).toBe(someArray);
    });
    it('isA(): null for object', function () {
        expect(fs.isA(someObject)).toBeNull();
    });


    // === Tests for isS()
    it('isS(): null for undefined', function () {
        expect(fs.isS(undefined)).toBeNull();
    });
    it('isS(): null for null', function () {
        expect(fs.isS(null)).toBeNull();
    });
    it('isS(): null for function', function () {
        expect(fs.isS(someFunction)).toBeNull();
    });
    it('isS(): the reference for string', function () {
        expect(fs.isS(someString)).toBe(someString);
    });
    it('isS(): null for number', function () {
        expect(fs.isS(someNumber)).toBeNull();
    });
    it('isS(): null for Date', function () {
        expect(fs.isS(someDate)).toBeNull();
    });
    it('isS(): null for array', function () {
        expect(fs.isS(someArray)).toBeNull();
    });
    it('isS(): null for object', function () {
        expect(fs.isS(someObject)).toBeNull();
    });


    // === Tests for isO()
    it('isO(): null for undefined', function () {
        expect(fs.isO(undefined)).toBeNull();
    });
    it('isO(): null for null', function () {
        expect(fs.isO(null)).toBeNull();
    });
    it('isO(): null for function', function () {
        expect(fs.isO(someFunction)).toBeNull();
    });
    it('isO(): null for string', function () {
        expect(fs.isO(someString)).toBeNull();
    });
    it('isO(): null for number', function () {
        expect(fs.isO(someNumber)).toBeNull();
    });
    it('isO(): null for Date', function () {
        expect(fs.isO(someDate)).toBeNull();
    });
    it('isO(): null for array', function () {
        expect(fs.isO(someArray)).toBeNull();
    });
    it('isO(): the reference for object', function () {
        expect(fs.isO(someObject)).toBe(someObject);
    });

    // === Tests for contains()
    it('contains(): false for improper args', function () {
        expect(fs.contains()).toBeFalsy();
    });
    it('contains(): false for non-array', function () {
        expect(fs.contains(null, 1)).toBeFalsy();
    });
    it('contains(): true for contained item', function () {
        expect(fs.contains(someArray, 1)).toBeTruthy();
        expect(fs.contains(stringArray, 'bar')).toBeTruthy();
    });
    it('contains(): false for non-contained item', function () {
        expect(fs.contains(someArray, 109)).toBeFalsy();
        expect(fs.contains(stringArray, 'zonko')).toBeFalsy();
    });

    // === Tests for areFunctions()
    it('areFunctions(): false for non-array', function () {
        expect(fs.areFunctions({}, 'not-an-array')).toBeFalsy();
    });
    it('areFunctions(): true for empty-array', function () {
        expect(fs.areFunctions({}, [])).toBeTruthy();
    });
    it('areFunctions(): true for some api', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: function () {}
        }, ['b', 'a'])).toBeTruthy();
    });
    it('areFunctions(): false for some other api', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: 'not-a-function'
        }, ['b', 'a'])).toBeFalsy();
    });
    it('areFunctions(): extraneous stuff NOT ignored', function () {
        expect(fs.areFunctions({
            a: function () {},
            b: function () {},
            c: 1,
            d: 'foo'
        }, ['a', 'b'])).toBeFalsy();
    });
    it('areFunctions(): extraneous stuff ignored (alternate fn)', function () {
        expect(fs.areFunctionsNonStrict({
            a: function () {},
            b: function () {},
            c: 1,
            d: 'foo'
        }, ['a', 'b'])).toBeTruthy();
    });

    // == use the now-tested areFunctions() on our own api:
    it('should define api functions', function () {
        expect(fs.areFunctions(fs, [
            'isF', 'isA', 'isS', 'isO', 'contains',
            'areFunctions', 'areFunctionsNonStrict', 'windowSize',
            'isMobile', 'isChrome', 'isSafari', 'isFirefox',
            'debugOn', 'debug',
            'find', 'inArray', 'removeFromArray', 'isEmptyObject', 'sameObjProps', 'containsObj', 'cap',
            'eecode', 'noPx', 'noPxStyle', 'endsWith', 'addToTrie', 'removeFromTrie', 'trieLookup',
            'classNames', 'extend', 'sanitize'
        ])).toBeTruthy();
    });


    // === Tests for windowSize()
    it('windowSize(): noargs', function () {
        var dim = fs.windowSize();
        expect(dim.width).toEqual(400);
        expect(dim.height).toEqual(200);
    });

    it('windowSize(): adjust height', function () {
        var dim = fs.windowSize(50);
        expect(dim.width).toEqual(400);
        expect(dim.height).toEqual(150);
    });

    it('windowSize(): adjust width', function () {
        var dim = fs.windowSize(0, 50);
        expect(dim.width).toEqual(350);
        expect(dim.height).toEqual(200);
    });

    it('windowSize(): adjust width and height', function () {
        var dim = fs.windowSize(101, 201);
        expect(dim.width).toEqual(199);
        expect(dim.height).toEqual(99);
    });

    // === Tests for isMobile()
    var uaMap = {
        chrome: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) " +
                "AppleWebKit/537.36 (KHTML, like Gecko) " +
                "Chrome/41.0.2272.89 Safari/537.36",

        iPad: "Mozilla/5.0 (iPad; CPU OS 7_0 like Mac OS X) " +
                "AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 " +
                "Mobile/11A465 Safari/9537.53",

        iPhone: "Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) " +
                "AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 " +
                "Mobile/11A465 Safari/9537.53"
    };

    function setUa(key) {
        var str = uaMap[key];
        expect(str).toBeTruthy();
        mockWindow.navigator.userAgent = str;
    }

    it('isMobile(): should be false for Chrome on Mac OS X', function () {
        setUa('chrome');
        expect(fs.isMobile()).toBe(false);
    });
    it('isMobile(): should be true for Safari on iPad', function () {
        setUa('iPad');
        expect(fs.isMobile()).toBe(true);
    });
    it('isMobile(): should be true for Safari on iPhone', function () {
        setUa('iPhone');
        expect(fs.isMobile()).toBe(true);
    });

    // === Tests for find()
    var dataset = [
        { id: 'foo', name: 'Furby'},
        { id: 'bar', name: 'Barbi'},
        { id: 'baz', name: 'Basil'},
        { id: 'goo', name: 'Gabby'},
        { id: 'zoo', name: 'Zevvv'}
    ];

    it('should not find ooo', function () {
        expect(fs.find('ooo', dataset)).toEqual(-1);
    });
    it('should find foo', function () {
        expect(fs.find('foo', dataset)).toEqual(0);
    });
    it('should find zoo', function () {
        expect(fs.find('zoo', dataset)).toEqual(4);
    });

    it('should not find Simon', function () {
        expect(fs.find('Simon', dataset, 'name')).toEqual(-1);
    });
    it('should find Furby', function () {
        expect(fs.find('Furby', dataset, 'name')).toEqual(0);
    });
    it('should find Zevvv', function () {
        expect(fs.find('Zevvv', dataset, 'name')).toEqual(4);
    });


    // === Tests for inArray()
    var objRef = { x:1, y:2 },
        array = [1, 3.14, 'hey', objRef, 'there', true],
        array2 = ['b', 'a', 'd', 'a', 's', 's'];

    it('should return -1 on non-arrays', function () {
        expect(fs.inArray(1, {x:1})).toEqual(-1);
    });
    it('should not find HOO', function () {
        expect(fs.inArray('HOO', array)).toEqual(-1);
    });
    it('should find 1', function () {
        expect(fs.inArray(1, array)).toEqual(0);
    });
    it('should find pi', function () {
        expect(fs.inArray(3.14, array)).toEqual(1);
    });
    it('should find hey', function () {
        expect(fs.inArray('hey', array)).toEqual(2);
    });
    it('should find the object', function () {
        expect(fs.inArray(objRef, array)).toEqual(3);
    });
    it('should find there', function () {
        expect(fs.inArray('there', array)).toEqual(4);
    });
    it('should find true', function () {
        expect(fs.inArray(true, array)).toEqual(5);
    });

    it('should find the first occurrence A', function () {
        expect(fs.inArray('a', array2)).toEqual(1);
    });
    it('should find the first occurrence S', function () {
        expect(fs.inArray('s', array2)).toEqual(4);
    });
    it('should not find X', function () {
        expect(fs.inArray('x', array2)).toEqual(-1);
    });

    // === Tests for removeFromArray()
    it('should ignore non-arrays', function () {
        expect(fs.removeFromArray(1, {x:1})).toBe(false);
    });
    it('should keep the array the same, for non-match', function () {
        var array = [1, 2, 3];
        expect(fs.removeFromArray(4, array)).toBe(false);
        expect(array).toEqual([1, 2, 3]);
    });
    it('should remove a value', function () {
        var array = [1, 2, 3];
        expect(fs.removeFromArray(2, array)).toBe(true);
        expect(array).toEqual([1, 3]);
    });
    it('should remove the first occurrence', function () {
        var array = ['x', 'y', 'z', 'z', 'y'];
        expect(fs.removeFromArray('y', array)).toBe(true);
        expect(array).toEqual(['x', 'z', 'z', 'y']);
        expect(fs.removeFromArray('x', array)).toBe(true);
        expect(array).toEqual(['z', 'z', 'y']);
    });

    // === Tests for isEmptyObject()
    it('should return true if an object is empty', function () {
        expect(fs.isEmptyObject({})).toBe(true);
    });
    it('should return false if an object is not empty', function () {
        expect(fs.isEmptyObject({foo: 'bar'})).toBe(false);
    });

    // === Tests for cap()
    it('should ignore non-alpha', function () {
        expect(fs.cap('123')).toEqual('123');
    });
    it('should capitalize first char', function () {
        expect(fs.cap('Foo')).toEqual('Foo');
        expect(fs.cap('foo')).toEqual('Foo');
        expect(fs.cap('foo bar')).toEqual('Foo bar');
        expect(fs.cap('FOO BAR')).toEqual('Foo bar');
        expect(fs.cap('foo Bar')).toEqual('Foo bar');
    });

    // === Tests for noPx()
    it('should return the value without px suffix', function () {
        expect(fs.noPx('10px')).toBe(10);
        expect(fs.noPx('500px')).toBe(500);
        expect(fs.noPx('-80px')).toBe(-80);
    });

    // === Tests for noPxStyle()
    it("should give a style's property without px suffix", function () {
        var d3Elem = d3.select('body')
            .append('div')
            .attr('id', 'fooElem')
            .style({
                width: '500px',
                height: '200px',
                'font-size': '12px'
            });
        expect(fs.noPxStyle(d3Elem, 'width')).toBe(500);
        expect(fs.noPxStyle(d3Elem, 'height')).toBe(200);
        expect(fs.noPxStyle(d3Elem, 'font-size')).toBe(12);
        d3.select('#fooElem').remove();
    });

    // === Tests for endsWith()
    it('should return true if string ends with foo', function () {
        expect(fs.endsWith("barfoo", "foo")).toBe(true);
    });

    it('should return false if string doesnt end with foo', function () {
        expect(fs.endsWith("barfood", "foo")).toBe(false);
    });

    // === Tests for sanitize()
    function chkSan(u, s) {
        expect(fs.sanitize(u)).toEqual(s);
    }
    function chkGood(g) {
        chkSan(g, g)
    }
    it('should return foo', function () {
        chkGood('foo');
    });
    it('should retain < b > tags', function () {
        chkGood('foo <b>bar</b> baz');
    });
    it('should retain < i > tags', function () {
        chkGood('foo <i>bar</i> baz');
    });
    it('should retain < p > tags', function () {
        chkGood('foo <p>bar</p> baz');
    });
    it('should retain < em > tags', function () {
        chkGood('foo <em>bar</em> baz');
    });
    it('should retain < strong > tags', function () {
        chkGood('foo <strong>bar</strong> baz');
    });

    it('should reject < a > tags', function () {
        chkSan('test <a href="hah">something</a> this', 'test something this');
    });

    it('should log a warning for < script > tags', function () {
        spyOn($log, 'warn');
        chkSan('<script>alert("foo");</script>', '');
        expect($log.warn).toHaveBeenCalledWith(
            'Unsanitary HTML input -- <script> detected!'
        );
    });
    it('should log a warning for < style > tags', function () {
        spyOn($log, 'warn');
        chkSan('<style> h1 {color:red;} </style>', '');
        expect($log.warn).toHaveBeenCalledWith(
            'Unsanitary HTML input -- <style> detected!'
        );
    });

    it('should completely strip < script >, remove < a >, retain < i >', function () {
        chkSan(
            'Hey <i>this</i> is <script>alert("foo");</script> <a href="meh">cool</a>',
            'Hey <i>this</i> is  cool'
        );
    });

});