2407 - 3

2407/3/Gemfile

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
+
+gem 'faraday'
+gem 'mechanize'
+gem 'ohm'
+gem 'redis'
+gem 'sinatra'
+gem 'slim'
+
+group :development do
+  gem 'shotgun'
+end

2407/3/Gemfile.lock

@@ -0,0 +1,104 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    autoprefixer-rails (9.0.0)
+      execjs
+    bootstrap (4.1.3)
+      autoprefixer-rails (>= 6.0.3)
+      popper_js (>= 1.12.9, < 2)
+      sass (>= 3.5.2)
+    connection_pool (2.2.2)
+    daemons (1.2.6)
+    domain_name (0.5.20180417)
+      unf (>= 0.0.5, < 1.0.0)
+    eventmachine (1.2.7)
+    execjs (2.7.0)
+    faraday (0.15.2)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.25)
+    hiredis (0.6.1)
+    http-cookie (1.0.3)
+      domain_name (~> 0.5)
+    json (2.1.0)
+    mechanize (2.7.6)
+      domain_name (~> 0.5, >= 0.5.1)
+      http-cookie (~> 1.0)
+      mime-types (>= 1.17.2)
+      net-http-digest_auth (~> 1.1, >= 1.1.1)
+      net-http-persistent (>= 2.5.2)
+      nokogiri (~> 1.6)
+      ntlm-http (~> 0.1, >= 0.1.1)
+      webrobots (>= 0.0.9, < 0.2)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_portile2 (2.3.0)
+    multipart-post (2.0.0)
+    mustermann (1.0.2)
+    nest (3.1.1)
+      redic
+    net-http-digest_auth (1.4.1)
+    net-http-persistent (3.0.0)
+      connection_pool (~> 2.2)
+    nokogiri (1.8.4)
+      mini_portile2 (~> 2.3.0)
+    ntlm-http (0.1.1)
+    ohm (3.1.1)
+      nest (~> 3)
+      redic (~> 1.5.0)
+      stal
+    popper_js (1.14.3)
+    rack (2.0.5)
+    rack-protection (2.0.3)
+      rack
+    rb-fsevent (0.10.3)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
+    redic (1.5.0)
+      hiredis
+    redis (4.0.1)
+    sass (3.5.7)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    shotgun (0.9.2)
+      rack (>= 1.0)
+    sinatra (2.0.3)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.3)
+      tilt (~> 2.0)
+    slim (3.0.9)
+      temple (>= 0.7.6, < 0.9)
+      tilt (>= 1.3.3, < 2.1)
+    stal (0.3.0)
+      redic (~> 1.5)
+    temple (0.8.0)
+    thin (1.7.2)
+      daemons (~> 1.0, >= 1.0.9)
+      eventmachine (~> 1.0, >= 1.0.4)
+      rack (>= 1, < 3)
+    tilt (2.0.8)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.5)
+    webrobots (0.1.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bootstrap
+  faraday
+  json
+  mechanize
+  ohm
+  redis
+  shotgun
+  sinatra
+  slim
+  thin
+
+BUNDLED WITH
+   1.16.2

2407/3/config.ru

@@ -0,0 +1,9 @@
+require 'sinatra/base'
+require 'bundler'
+Bundler.require
+
+use Rack::MethodOverride
+Dir.glob('./{helpers,controllers,models}/*.rb').each { |file| require file }
+Article.redis = Redic.new('redis://127.0.0.1:6379')
+Comment.redis = Redic.new('redis://127.0.0.1:6379')
+map('/articles') { run ArticlesController }

2407/3/controllers/application_controller.rb

@@ -0,0 +1,6 @@
+class ApplicationController < Sinatra::Base
+  set :views, File.expand_path('../views', __dir__)
+  not_found do
+    slim :not_found
+  end
+end

2407/3/controllers/articles_controller.rb

@@ -0,0 +1,34 @@
+require_relative 'application_controller'
+
+class ArticlesController < ApplicationController
+  get '/' do
+    @articles = Article.all
+    slim :index
+  end
+
+  get '/add' do
+    slim :add
+  end
+
+  post '/add' do
+    article = ArticleCreator.new(params[:link])
+    article_db = Article.create link: params[:link], rating: article.rating
+    article.comments.map { |coment| article_db.comments.add(Comment.create(text: coment.text, rating: coment.rating)) }
+    redirect '/articles'
+  end
+
+  get '/:id' do
+    @article = Article.all[params[:id]]
+    slim :show_article
+  end
+
+  delete '/:id' do
+    Article.all[params[:id]].delete
+    redirect '/articles'
+  end
+
+  delete '/' do
+    Article.all.each(&:delete)
+    redirect '/articles'
+  end
+end

2407/3/helpers/article_creator.rb

@@ -0,0 +1,13 @@
+class ArticleCreator
+  def initialize(link)
+    @link = link
+  end
+
+  def rating
+    comments.map(&:rating).reduce(:+) / comments.size
+  end
+
+  def comments
+    @comments ||= CommentsCreator.new(@link).create
+  end
+end

2407/3/helpers/comments_creator.rb

@@ -0,0 +1,19 @@
+class CommentsCreator
+  def initialize(link)
+    @link = link
+  end
+
+  def create
+    comments_as_strings.map.with_index { |text, index| SpecificComment.new(text, ratings_of_comments[index]) }
+  end
+
+  private
+
+  def ratings_of_comments
+    @ratings_of_comments ||= TextChecker.new(comments_as_strings).check
+  end
+
+  def comments_as_strings
+    @comments_as_strings ||= CommentsParser.new(@link).parse
+  end
+end

2407/3/helpers/comments_parser.rb

@@ -0,0 +1,34 @@
+require 'json'
+require 'mechanize'
+
+class CommentsParser
+  def initialize(link)
+    @link = link
+  end
+
+  def parse
+    response_as_json['comments'].map { |comment| comment['text'] }
+  end
+
+  private
+
+  def response_as_json
+    JSON.parse(response_of_server.body)
+  end
+
+  def response_of_server
+    Faraday.get "https://comments.api.onliner.by/news/#{arcticle_category}.post/#{article_id}/comments?limit=50"
+  end
+
+  def arcticle_category
+    @link.split('.').first.split('/').last
+  end
+
+  def article_id
+    page.css('.news_view_count').attr('news_id').value
+  end
+
+  def page
+    Mechanize.new.get(@link)
+  end
+end

2407/3/helpers/specific_comment.rb

@@ -0,0 +1,7 @@
+class SpecificComment
+  attr_reader :text, :rating
+  def initialize(text, rating)
+    @text = text
+    @rating = rating
+  end
+end

2407/3/helpers/text_checker.rb

@@ -0,0 +1,37 @@
+require 'uri'
+require 'json'
+require 'net/https'
+
+class TextChecker
+  ACCESS_KEY = 'c2b502fd9bf046c0ac3820967368c382'.freeze
+  LINK = 'https://westcentralus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment'.freeze
+  URL = URI(LINK)
+  def initialize(texts)
+    @texts = texts
+  end
+
+  def check
+    JSON.parse(response.body)['documents'].map { |text| (text['score'].round(2) * 200 - 100).to_i }
+  end
+
+  private
+
+  def response
+    Net::HTTP.start(URL.host, URL.port, use_ssl: URL.scheme == 'https') do |http|
+      http.request(request_preparation)
+    end
+  end
+
+  def request_preparation
+    request = Net::HTTP::Post.new(URL, 'Content-Type' => 'application/json', 'Ocp-Apim-Subscription-Key' => ACCESS_KEY)
+    request.body = document.to_json
+    request
+  end
+  # rubocop:disable Lint/UnneededCopDisableDirective
+  # rubocop:disable Lint/Syntax
+  def document
+    { 'documents': @texts.map.with_index { |text, index| { 'id' => index.to_s, 'language' => 'ru', 'text' => text } } }
+  end
+  # rubocop:enable Lint/Syntax
+  # rubocop:enable Lint/UnneededCopDisableDirective
+end

2407/3/models/article.rb

@@ -0,0 +1,6 @@
+require 'ohm'
+class Article < Ohm::Model
+  attribute :link
+  attribute :rating
+  set :comments, :Comment
+end

2407/3/models/comment.rb

@@ -0,0 +1,5 @@
+require 'ohm'
+class Comment < Ohm::Model
+  attribute :text
+  attribute :rating
+end

2407/3/views/add.slim

@@ -0,0 +1,7 @@
+div class="jumbotron"
+  p class="lead" Just paste in link to the article you want to add
+  form method='post'
+    input class="form-control" name='link'
+    hr class="my-4"
+    p class="lead" 
+      button class="btn btn-primary btn-lg" type='submit' Add link

2407/3/views/index.slim

@@ -0,0 +1,19 @@
+nav class="navbar"
+    a сlass="navbar-brand"
+      h1 OnlinerArticlesAssestments
+    a class="btn btn-primary btn-lg" href="/articles/add" role="button" Add an article
+.container
+  table class='table table table'
+    thead class='thead-dark'
+      tr
+        th Links
+        th Rating
+    tbody
+      - @articles.each do |article|
+        tr
+          td
+            a href="articles/#{article.id}"  = article.link
+          td
+            = article.rating
+  form action='/articles' method='post'
+    button type='submit' id='hidden' name='_method' value='delete' class='btn btn-warning btn-lg' onclick="return confirm('Are you really sure that you want to delete all articles?')" Delete all articles

2407/3/views/layout.slim

@@ -0,0 +1,10 @@
+doctype html
+html lang="ru" 
+  head
+    meta content=("text/html; charset=UTF-8") http-equiv="Content-Type" /
+    meta charset="utf-8" /
+    meta content="width=device-width, initial-scale=1, shrink-to-fit=no" name="viewport" /
+    link crossorigin="anonymous" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" rel="stylesheet" /
+  body   
+    div class='jumbotron'
+      == yield

2407/3/views/show_article.slim

@@ -0,0 +1,24 @@
+div
+  table class="table"
+    thead align='middle'
+      tr
+        th
+          a class='btn btn-outline-dark' href="/articles" role="button" Go back
+        th
+          h1 = @article.link
+        th
+          form action="#{@article.id}" method='post'
+            button type='submit' id='hidden' name='_method' value='delete' class='btn btn-outline-dark' Delete an article
+div
+  table class="table table-striped"
+    thead class="thead-dark"
+      tr
+        th Comments
+        th Rate
+    tbody
+      - @article.comments.each do |comment|
+        tr
+          td
+            = comment.text
+          td
+            = comment.rating