Add donation nag after 20 successful DCP encodes.

3 files changed, 43 insertions, 2 deletions

diff --git a/src/lib/analytics.cc b/src/lib/analytics.cc
index 74c21a29c..0bb8ada8c 100644
--- a/src/lib/analytics.cc
+++ b/src/lib/analytics.cc
@@ -20,12 +20,15 @@
 
 #include "analytics.h"
 #include "exceptions.h"
+#include "compose.hpp"
 #include <dcp/raw_convert.h>
 #include <libcxml/cxml.h>
 #include <libxml++/libxml++.h>
 #include <boost/filesystem.hpp>
 #include <boost/algorithm/string.hpp>
 
+#include "i18n.h"
+
 using std::string;
 using dcp::raw_convert;
 using boost::algorithm::trim;
@@ -44,6 +47,35 @@ Analytics::successful_dcp_encode ()
 {
 	++_successful_dcp_encodes;
 	write ();
+
+	if (_successful_dcp_encodes == 20) {
+		emit (
+			boost::bind(
+				boost::ref(Message),
+				_("Congratulations!"),
+				String::compose (_(
+					"<h2>You have made %1 DCPs with DCP-o-matic!</h2>"
+					"<img width=\"20%%\" src=\"memory:me.jpg\" align=\"center\">"
+                                        "<p>Hello. I'm Carl and I'm the "
+					"developer of DCP-o-matic. I work on it in my spare time (with the help "
+					"of a fine volunteer team of testers and translators) and I release it "
+					"as free software."
+
+					"<p>If you find DCP-o-matic useful, please consider a donation to the "
+					"project. Financial support will help me to spend more "
+					"time developing DCP-o-matic and making it better!"
+
+					"<p><ul>"
+					"<li><a href=\"https://dcpomatic.com/donate_amount?amount=40\">Go to Paypal to donate £40</a>"
+					"<li><a href=\"https://dcpomatic.com/donate_amount?amount=20\">Go to Paypal to donate £20</a>"
+					"<li><a href=\"https://dcpomatic.com/donate_amount?amount=10\">Go to Paypal to donate £10</a>"
+					"</ul>"
+
+					"<p>Thank you!"), _successful_dcp_encodes
+					)
+				)
+			);
+	}
 }
 
 void
diff --git a/src/lib/analytics.h b/src/lib/analytics.h
index b439fca8c..be41e3a1b 100644
--- a/src/lib/analytics.h
+++ b/src/lib/analytics.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2018-2019 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -19,8 +19,10 @@
 */
 
 #include "state.h"
+#include "signaller.h"
+#include <boost/signals2.hpp>
 
-class Analytics : public State
+class Analytics : public State, public Signaller
 {
 public:
 	Analytics ();
@@ -30,6 +32,8 @@ public:
 	void write () const;
 	void read ();
 
+	boost::signals2::signal<void (std::string, std::string)> Message;
+
 	static Analytics* instance ();
 
 private:
diff --git a/src/lib/state.h b/src/lib/state.h
index b60c66673..251124a43 100644
--- a/src/lib/state.h
+++ b/src/lib/state.h
@@ -18,6 +18,9 @@
 
 */
 
+#ifndef DCPOMATIC_STATE_H
+#define DCPOMATIC_STATE_H
+
 #include <boost/noncopyable.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/optional.hpp>
@@ -35,3 +38,5 @@ public:
 protected:
 	static boost::filesystem::path path (std::string file, bool create_directories = true);
 };
+
+#endif