task4

UI/script.js

@@ -0,0 +1,304 @@
+(function () {
+        var photoPosts = [{
+            id: '1',
+            description: 'Text',
+            createdAt: new Date('2018-03-01T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/1.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author1", "author2"]
+        }, {
+            id: '2',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Murashko Yuliya',
+            photoLink: 'images/2.jpg',
+            hashTag: ['#hashTag'],
+            like: ["author1"]
+        }, {
+            id: '3',
+            description: 'Text',
+            createdAt: new Date('2018-02-28T23:00:00'),
+            author: 'Ambrosyonok Marina',
+            photoLink: 'images/3.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author2"]
+        }, {
+            id: '4',
+            description: 'Text',
+            createdAt: new Date('2018-02-27T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/4.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author1", "author2", "author3"]
+        }, {
+            id: '5',
+            description: 'Text',
+            createdAt: new Date('2018-02-20T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/5.jpg',
+            hashTag: ['#hashtag_2'],
+            like: ["author1", "author2"]
+        }, {
+            id: '6',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Ambrosyonok Marina',
+            photoLink: 'images/6.jpg',
+            hashTag: ['#hashtag_10'],
+            like: ["author1", "author2"]
+        }, {
+            id: '7',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/7.jpg',
+            hashTag: ['#hashTag'],
+            like: ["author3"]
+        }, {
+            id: '8',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Murashko Yuliya',
+            photoLink: 'images/8.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author2"]
+        }, {
+            id: '9',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/9.jpg',
+            hashTag: ['#hashtag_11'],
+            like: ["author1", "author3"]
+        }, {
+            id: '10',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/10.jpg',
+            hashTag: ['#hashtag_5'],
+            like: ["author1", "author2"]
+        }, {
+            id: '11',
+            description: 'Text',
+            createdAt: new Date('2018-03-01T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/11.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author1", "author2"]
+        }, {
+            id: '12',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Murashko Yuliya',
+            photoLink: 'images/12.jpg',
+            hashTag: ['#hashTag'],
+            like: ["author1"]
+        }, {
+            id: '13',
+            description: 'Text',
+            createdAt: new Date('2018-02-28T23:00:00'),
+            author: 'Ambrosyonok Marina',
+            photoLink: 'images/13.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author2"]
+        }, {
+            id: '14',
+            description: 'Text',
+            createdAt: new Date('2018-02-27T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/14.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author1", "author2", "author3"]
+        }, {
+            id: '15',
+            description: 'Text',
+            createdAt: new Date('2018-02-20T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/15.jpg',
+            hashTag: ['#hashtag_2'],
+            like: ["author1", "author2"]
+        }, {
+            id: '16',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Ambrosyonok Marina',
+            photoLink: 'images/16.jpg',
+            hashTag: ['#hashtag_10'],
+            like: ["author1", "author2"]
+        }, {
+            id: '17',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/17.jpg',
+            hashTag: ['#hashTag'],
+            like: ["author3"]
+        }, {
+            id: '18',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Murashko Yuliya',
+            photoLink: 'images/18.jpg',
+            hashTag: ['#hashtag_1'],
+            like: ["author2"]
+        }, {
+            id: '19',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/19.jpg',
+            hashTag: ['#hashtag_11'],
+            like: ["author1", "author3"]
+        }, {
+            id: '20',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T23:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/20.jpg',
+            hashTag: ['#hashtag_5'],
+            like: ["author1", "author2"]
+        }];
+
+        function compareDate(a, b) {
+            return (a.createdAt) - (b.createdAt);
+        }
+
+        function filterAuthor(photoPosts, author) {
+            var result = [];
+            for (var i in photoPosts) {
+                if (photoPosts[i].author === author) {
+                    result.push(photoPosts[i]);
+                }
+            }
+            return result;
+        }
+
+        function filterHashtag(photoPosts, hashtag) {
+            var result = [];
+            for (var i in photoPosts) {
+                if (photoPosts[i].hashTag === hashtag) {
+                    result.push(photoPosts[i]);
+                }
+            }
+            return result;
+        }
+
+        function getPhotoPosts(skip, top, filterConfig) {
+            var resultArray = [];
+            if (filterConfig === undefined) {
+                return photoPosts.sort(compareDate).slice(skip, skip + top);
+            } else {
+                resultArray = photoPosts.sort(compareDate).slice(skip, skip + top);
+                if (filterConfig.author !== undefined) {
+                    resultArray = filterAuthor(resultArray, filterConfig.author);
+                }
+                if (filterConfig.hashTag !== undefined) {
+                    resultArray = filterHashtag(resultArray, filterConfig.hashTag);
+                }
+            }
+            return resultArray;
+        }
+
+        function getPhotoPost(id) {
+            for (var i in photoPosts) {
+                if (photoPosts[i].id === id) {
+                    return photoPosts[i];
+                }
+            }
+        }
+
+        function validatePhotoPost(photoPost){
+            if(typeof(photoPost.id) !== "string" || typeof(photoPost.author) !== "string" || typeof(photoPost.description) !== "string"
+                || typeof(photoPost.photoLink) !== "string") {
+                return false;
+            }
+            if(photoPost.id.trim() === "" || photoPost.author.trim() === "" || photoPost.description.trim() === "" || photoPost.photoLink.trim() === ""
+                || photoPost.hashTag.length === 0 || photoPost.like.length === 0){
+                return false;
+            }
+            for(var i in photoPost.hashTag){
+                if(typeof(photoPost.hashTag[i]) !== "string" || photoPost.hashTag[i].trim() === "") {
+                    return false;
+                }
+            }
+
+            for(var i in photoPost.like){
+                if(typeof(photoPost.like[i]) !== "string" || photoPost.like[i].trim() === "") {
+                    return false;
+                }
+            }
+
+            if(!photoPost.createdAt instanceof Date){
+                return false;
+            }
+            return true;
+        }
+        function removePhotoPost(id) {
+                for (var i in photoPosts) {
+                    if (photoPosts[i].id === id) {
+                        photoPosts = photoPosts.splice(i, 1);
+                        return true;
+                    }
+                    return false;
+                }
+        }
+
+        function addPhotoPost(objectPhotoPost) {
+            if (validatePhotoPost(objectPhotoPost)) {
+                photoPosts.push(objectPhotoPost);
+                return true;
+            }
+            return false;
+        }
+
+        function editPhotoPost(id, objectPhotoPost) {
+            if (validatePhotoPost(objectPhotoPost)) {
+                if (!objectPhotoPost) {
+                    return false;
+                }
+                if (id === undefined) {
+                    return false;
+                }
+                for (var i in photoPosts) {
+                    if (photoPosts[i].id === id) {
+                        var post = photoPosts[i];
+                        if (objectPhotoPost.photoLink !== undefined && objectPhotoPost.photoLink !== 0) {
+                            post.photoLink = objectPhotoPost.photoLink;
+                        }
+                        if (objectPhotoPost.description !== undefined && objectPhotoPost.description !== 0 && objectPhotoPost.description.length < 200) {
+
+                            post.description = objectPhotoPost.description;
+                        }
+                        if (objectPhotoPost.hashTag !== undefined && objectPhotoPost.hashTag.length > 0) {
+
+                            post.hashTag = objectPhotoPost.hashTag;
+                        }
+                        photoPosts[i] = post;
+                        console.log(post);
+                        return true;
+                    } else
+                        return false;
+                }
+            }
+            return false;
+        }
+
+        console.log(getPhotoPosts(0, 10));
+        console.log(getPhotoPosts(0, 10, {hashTag: "#hashtag_1", author: "Adamskaya Yuliya"}));
+        console.log(getPhotoPost("8"));
+        addPhotoPost({
+            id: '21',
+            description: 'Text',
+            createdAt: new Date('2018-02-23T21:00:00'),
+            author: 'Adamskaya Yuliya',
+            photoLink: 'images/21.jpg',
+            hashTag:['#hashtag_1', '#hashtag_2'],
+            like: ['author21']
+        });
+        removePhotoPost('4');
+        editPhotoPost('1', {hashTag: ['#hashtag_1', '#hashtag_8']});
+        getPhotoPost('1');
+    }
+)();