src/lib/analytics.cc

   1 /*
   2     Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "analytics.h"
  22 #include "exceptions.h"
  23 #include "compose.hpp"
  24 #include "warnings.h"
  25 #include <dcp/raw_convert.h>
  26 #include <libcxml/cxml.h>
  27 DCPOMATIC_DISABLE_WARNINGS
  28 #include <libxml++/libxml++.h>
  29 DCPOMATIC_ENABLE_WARNINGS
  30 #include <boost/filesystem.hpp>
  31 #include <boost/algorithm/string.hpp>
  32
  33 #include "i18n.h"
  34
  35 using std::string;
  36 using dcp::raw_convert;
  37 using boost::algorithm::trim;
  38
  39 Analytics* Analytics::_instance;
  40 int const Analytics::_current_version = 1;
  41
  42 Analytics::Analytics ()
  43         : _successful_dcp_encodes (0)
  44 {
  45
  46 }
  47
  48 void
  49 Analytics::successful_dcp_encode ()
  50 {
  51         ++_successful_dcp_encodes;
  52         write ();
  53
  54         if (_successful_dcp_encodes == 20) {
  55                 emit (
  56                         boost::bind(
  57                                 boost::ref(Message),
  58                                 _("Congratulations!"),
  59                                 String::compose (_(
  60                                         "<h2>You have made %1 DCPs with DCP-o-matic!</h2>"
  61                                         "<img width=\"20%%\" src=\"memory:me.jpg\" align=\"center\">"
  62                                         "<p>Hello. I'm Carl and I'm the "
  63                                         "developer of DCP-o-matic. I work on it in my spare time (with the help "
  64                                         "of a fine volunteer team of testers and translators) and I release it "
  65                                         "as free software."
  66
  67                                         "<p>If you find DCP-o-matic useful, please consider a donation to the "
  68                                         "project. Financial support will help me to spend more "
  69                                         "time developing DCP-o-matic and making it better!"
  70
  71                                         "<p><ul>"
  72                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=40\">Go to Paypal to donate €40</a>"
  73                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=20\">Go to Paypal to donate €20</a>"
  74                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=10\">Go to Paypal to donate €10</a>"
  75                                         "</ul>"
  76
  77                                         "<p>Thank you!"), _successful_dcp_encodes
  78                                         )
  79                                 )
  80                         );
  81         }
  82 }
  83
  84 void
  85 Analytics::write () const
  86 {
  87         xmlpp::Document doc;
  88         xmlpp::Element* root = doc.create_root_node ("Analytics");
  89
  90         root->add_child("Version")->add_child_text(raw_convert<string>(_current_version));
  91         root->add_child("SuccessfulDCPEncodes")->add_child_text(raw_convert<string>(_successful_dcp_encodes));
  92
  93         try {
  94                 doc.write_to_file_formatted(path("analytics.xml").string());
  95         } catch (xmlpp::exception& e) {
  96                 string s = e.what ();
  97                 trim (s);
  98                 throw FileError (s, path("analytics.xml"));
  99         }
 100 }
 101
 102 void
 103 Analytics::read ()
 104 try
 105 {
 106         cxml::Document f ("Analytics");
 107         f.read_file (path("analytics.xml"));
 108         _successful_dcp_encodes = f.number_child<int>("SuccessfulDCPEncodes");
 109 } catch (...) {
 110         /* Never mind */
 111 }
 112
 113 Analytics*
 114 Analytics::instance ()
 115 {
 116         if (!_instance) {
 117                 _instance = new Analytics();
 118                 _instance->read();
 119         }
 120
 121         return _instance;
 122 }