service-reporting/Utility/TemplateGenerator.cs

   1 using System.Text;
   2 using PdfService.Models;
   3 using System.IO;
   4 using System;
   5 using System.Linq;
   6 using System.Collections.Generic;
   7
   8 namespace PdfService.Utility
   9 {
  10     public static class TemplateGenerator
  11     {
  12         // calculates standard deviation for list
  13         // from: https://stackoverflow.com/questions/3141692/standard-deviation-of-generic-list
  14         private static float CalculateStdDev(IEnumerable<double> values)
  15         {
  16             double ret = 0;
  17             if (values.Count() > 1)
  18             {
  19                 //Compute the Average
  20                 double avg = values.Average();
  21                 //Perform the Sum of (value-avg)_2_2
  22                 double sum = values.Sum(d => Math.Pow(d - avg, 2));
  23                 //Put it all together
  24                 ret = Math.Sqrt((sum) / (values.Count()-1));
  25             }
  26             return (float)ret;
  27         }
  28
  29         public static string GetHTMLString(Term[] terms)
  30         {
  31             var sb = new StringBuilder();
  32             sb.Append(@"<!doctype html>
  33                         <html>
  34                             <head>
  35                                 <meta charset='utf-8'>
  36                                 <meta name='viewport' content='initial-scale=1.0, user-scalable=no' />
  37                             </head>
  38                             <body>
  39                             <section class='hero is-info' style='padding: 3em 3em 0em 3em;'>
  40                             <div class='hero-body'>
  41                                 <div class='container'>
  42                                 <h1 class='title'>
  43                                     Sentiment Analysis - Advanced Report
  44                                 </h1>
  45                                 <p class='subtitle'>");
  46             if(terms.Length == 1) {
  47                 sb.AppendFormat(@"For term: {0}", terms[0].Name);
  48             } else {
  49                 sb.AppendFormat(@"For terms: {0}", terms.Select(i => i.Name).Aggregate((i, j) => i + ',' + ' ' + j));
  50             }
  51
  52             sb.AppendFormat(@"
  53
  54                                 </p>
  55                             </div>
  56                             </section>
  57                             <div class='notification is-info' style='padding-left:5em; padding-right:5em'>
  58                                 <table style='padding-left:2em'>
  59                                     <td>
  60                                         <tr>
  61                                 <img src='{6}' style='height:2em; width: auto;padding-right:2em;'/>
  62                                 <img src='{5}' style='height:2em; width: auto;padding-right:2em;'/>
  63                                         </tr>
  64                                     </td>
  65                                 </table>
  66                             </div>
  67                             <div class='container' style='padding-left:5em; padding-right:5em'>
  68
  69                                 <h1 class='subtitle is-3'>Overall statistics:</h1>
  70                                 Amount of terms: <strong>{1}</strong><br/>
  71                                 Mean sentiment value: <strong>{2:0.00}</strong><br/>
  72                                 Standard deviation: <strong>{3:0.00}</strong><br/>
  73                                 Date: <strong>{4}</strong><br/>
  74                                 <hr/>
  75                                 <h1 class='subtitle is-3'>Detail results:</h1>
  76
  77                                 <div class='notification'>
  78                                 <a>Legend:</a> <br/>
  79                                 <span class='tag is-link is-danger' style='margin-right:0.5em'></span> Negative Sentiment Value: <strong>0-0.4</strong><br/>
  80                                 <span class='tag is-link is-warning'style='margin-right:0.5em'></span> Neutral Sentiment Value: <strong>0.4-0.6</strong><br/>
  81                                 <span class='tag is-link is-success'style='margin-right:0.5em'></span> Positive Sentiment Value: <strong>0.6-1.0</strong><br/>
  82                                 </div>
  83
  84                                 ", terms.Select(i => i.Name).Aggregate((i, j) => i + ',' + ' ' + j),
  85                                 terms.Length,
  86                                 terms.Select(i => i.Sentiment).Average(),
  87                                 CalculateStdDev(terms.Select(i => (double)i.Sentiment)),
  88                                 DateTime.Now,
  89                                 Path.Combine(Directory.GetCurrentDirectory(), "assets", "indico.png"),
  90                                 Path.Combine(Directory.GetCurrentDirectory(), "assets", "twitter.png"));
  91
  92             foreach (Term term in terms)
  93             {
  94                 string color = "";
  95                 if(term.Sentiment < 0.40)
  96                     color = "is-danger";
  97                 else if(term.Sentiment < 0.60)
  98                     color = "is-warning";
  99                 else
 100                     color = "is-success";
 101
 102                 sb.AppendFormat(@"<div class='container' style='margin-top:3em;'>
 103                             <p class='subtitle is-4'>{0}</p>
 104                             <p style='margin-top:-1.0em; margin-left: 2em;'>Calculated sentiment: {3:0.00}</p> <br/>
 105                         <table class='table' style='width:100%; border: 0; margin-left: 2em;'>
 106                             <tr>
 107                                 <td style='width:2em;border: 0; box-shadow: none;padding-right:0.5em'>
 108                                 <figure class='image is-16x16'>
 109                                 <img src='{4}'/>
 110                                 </figure></td>
 111                                 <td valign='center' style='width:20em;border: 0; box-shadow: none;'><progress class='progress {2}' value='{1}' max='100'>{1}%</progress></td>
 112                                 <td style='border: 0; box-shadow: none;padding-left:0.5em'><figure class='image is-16x16'>
 113                                 <img src='{5}'/>
 114                                 </figure></td>
 115                             </tr>
 116                             </table>
 117
 118                 </div>", term.Name, System.Math.Ceiling(term.Sentiment*100), color, term.Sentiment,
 119                 Path.Combine(Directory.GetCurrentDirectory(), "assets", "thumbs_down.png"),
 120                 Path.Combine(Directory.GetCurrentDirectory(), "assets", "thumbs_up.png"));
 121             }
 122
 123             sb.Append(@" </div>
 124                             </body>
 125                         </html>");
 126             return sb.ToString();
 127         }
 128     }
 129 }