src/lib/analytics.cc

   1 /*
   2     Copyright (C) 2018-2021 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
  22 #include "analytics.h"
  23 #include "compose.hpp"
  24 #include "exceptions.h"
  25 #include "warnings.h"
  26 #include <dcp/raw_convert.h>
  27 #include <libcxml/cxml.h>
  28 DCPOMATIC_DISABLE_WARNINGS
  29 #include <libxml++/libxml++.h>
  30 DCPOMATIC_ENABLE_WARNINGS
  31 #include <boost/algorithm/string.hpp>
  32 #include <boost/filesystem.hpp>
  33
  34 #include "i18n.h"
  35
  36
  37 using std::string;
  38 using dcp::raw_convert;
  39 using boost::algorithm::trim;
  40
  41
  42 Analytics* Analytics::_instance;
  43 int const Analytics::_current_version = 1;
  44
  45
  46 Analytics::Analytics ()
  47 {
  48
  49 }
  50
  51
  52 void
  53 Analytics::successful_dcp_encode ()
  54 {
  55         ++_successful_dcp_encodes;
  56         write ();
  57
  58         if (_successful_dcp_encodes == 20) {
  59                 emit (
  60                         boost::bind(
  61                                 boost::ref(Message),
  62                                 _("Congratulations!"),
  63                                 String::compose (_(
  64                                         "<h2>You have made %1 DCPs with DCP-o-matic!</h2>"
  65                                         "<img width=\"20%%\" src=\"memory:me.jpg\" align=\"center\">"
  66                                         "<p>Hello. I'm Carl and I'm the "
  67                                         "developer of DCP-o-matic. I work on it in my spare time (with the help "
  68                                         "of a fine volunteer team of testers and translators) and I release it "
  69                                         "as free software."
  70
  71                                         "<p>If you find DCP-o-matic useful, please consider a donation to the "
  72                                         "project. Financial support will help me to spend more "
  73                                         "time developing DCP-o-matic and making it better!"
  74
  75                                         "<p><ul>"
  76                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=40\">Go to Paypal to donate €40</a>"
  77                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=20\">Go to Paypal to donate €20</a>"
  78                                         "<li><a href=\"https://dcpomatic.com/donate_amount?amount=10\">Go to Paypal to donate €10</a>"
  79                                         "</ul>"
  80
  81                                         "<p>Thank you!"), _successful_dcp_encodes
  82                                         )
  83                                 )
  84                         );
  85         }
  86 }
  87
  88
  89 void
  90 Analytics::write () const
  91 {
  92         xmlpp::Document doc;
  93         auto root = doc.create_root_node ("Analytics");
  94
  95         root->add_child("Version")->add_child_text(raw_convert<string>(_current_version));
  96         root->add_child("SuccessfulDCPEncodes")->add_child_text(raw_convert<string>(_successful_dcp_encodes));
  97
  98         try {
  99                 doc.write_to_file_formatted(write_path("analytics.xml").string());
 100         } catch (xmlpp::exception& e) {
 101                 string s = e.what ();
 102                 trim (s);
 103                 throw FileError (s, write_path("analytics.xml"));
 104         }
 105 }
 106
 107
 108 void
 109 Analytics::read ()
 110 try
 111 {
 112         cxml::Document f ("Analytics");
 113         f.read_file (read_path("analytics.xml"));
 114         _successful_dcp_encodes = f.number_child<int>("SuccessfulDCPEncodes");
 115 } catch (...) {
 116         /* Never mind */
 117 }
 118
 119
 120 Analytics*
 121 Analytics::instance ()
 122 {
 123         if (!_instance) {
 124                 _instance = new Analytics();
 125                 _instance->read();
 126         }
 127
 128         return _instance;
 129 }