tool: basic support for property writing

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>

tools/monitor/CMakeLists.txt

@@ -13,6 +13,7 @@ target_link_libraries(contextkit-monitor
 
 target_link_libraries(contextkit-monitor
   ${Qt5Core_LIBRARIES}
+  ${QTAROUND_LIBRARIES}
 )
 install(TARGETS contextkit-monitor DESTINATION bin)
 

tools/monitor/monitor.cpp

@@ -5,15 +5,19 @@
 #include <QDebug>
 #include <QDir>
 #include <QRegExp>
+#include <QTimer>
 #include <map>
 #include <memory>
 #include <signal.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <QSocketNotifier>
+#include <qtaround/debug.hpp>
 #include <statefs/qt/client.hpp>
 
+namespace debug = qtaround::debug;
+
 static int sigFd[2];
 
 void onExit(int)
@@ -30,10 +34,28 @@ int usage(QStringList const &args, int rc)
 
 void writeProp(QString const &key, QString const &v)
 {
-    auto w = new statefs::qt::PropertyWriter{key};
+    using statefs::qt::PropertyWriter;
+    auto app = QCoreApplication::instance();
+    debug::info("Writing", key, "=", v);
+    auto w = new PropertyWriter{key, app};
+    app->connect(w, &PropertyWriter::updated, [key](bool b) {
+            debug::info("Updated?", b, key);
+        });
     w->set(v);
 }
 
+void monitorProps(QStringList keys)
+{
+    using statefs::qt::DiscreteProperty;
+    auto app = QCoreApplication::instance();
+    for (auto name : keys) {
+        auto p = new DiscreteProperty(name, app);
+        app->connect(p, &DiscreteProperty::changed, [name](QVariant v) {
+                debug::info(name, "=", v);
+            });
+    }
+}
+
 int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);
@@ -51,11 +73,16 @@ int main(int argc, char *argv[])
         });
     for (auto i : {SIGTERM, SIGINT})
         ::signal(i, onExit);
+
+    auto t = new QTimer(&app);
+    t->setSingleShot(true);
     if (args[1] == "-w") {
         if (args.size() <= 3)
             return usage(args, -1);
 
-        writeProp(args[2], args[3]);
+        app.connect(t, &QTimer::timeout, [args]() {
+                writeProp(args[2], args[3]);
+            });
     } else {
         auto dirname = args[1];
         QDir d(dirname);
@@ -64,13 +91,10 @@ int main(int argc, char *argv[])
         files = files.replaceInStrings(QRegExp("^"), prefix);
         qDebug() << files;
 
-        auto begin = files.begin(), end = files.end();
-        for (auto pos = begin; pos != end; ++pos) {
-            auto p = std::make_shared<ContextProperty>(*pos);
-            app.connect(p.get(), &ContextProperty::valueChanged, [p]() {
-                    qDebug() << p->key() << "=" << p->value();
-                });
-        }
+        app.connect(t, &QTimer::timeout, [files]() {
+                monitorProps(files);
+            });
     }
+    t->start(0);
     return app.exec();
 }