# HG changeset patch
# User Michiel Broek <mbroek@mbse.eu>
# Date 1644265706 -3600
# Node ID a1e435907f3aadb4678e84089dfa63dafec03cd0
# Parent  d38df7b580263fe80bc752c1779086ed9a553a2e
Added commandline parameters. Added initial app functions. Added user configuration read/write/create.

diff -r d38df7b58026 -r a1e435907f3a CMakeLists.txt
--- a/CMakeLists.txt	Sun Feb 06 16:52:20 2022 +0100
+++ b/CMakeLists.txt	Mon Feb 07 21:28:26 2022 +0100
@@ -6,7 +6,7 @@
 SET(bmsapp_EXECUTABLE "bmsapp")
 MESSAGE( STATUS "Building bmsapp" )
 
-# Version
+# ===== Set application version =====
 
 SET( bmsapp_VERSION_MAJOR 0 )
 SET( bmsapp_VERSION_MINOR 1 )
@@ -37,20 +37,36 @@
 #   SET(CMAKE_BUILD_TYPE "Debug")
 #ENDIF()
 
-#============================Directories=======================================
+# ===== Directories =====
+
+IF( NOT EXEC_PREFIX )
+   SET( EXEC_PREFIX ${CMAKE_INSTALL_PREFIX} )
+ENDIF()
+
+SET( DATAROOTDIR "${EXEC_PREFIX}/share" )
+SET( BINDIR "${EXEC_PREFIX}/bin" )
+IF( NOT DOCDIR )
+   SET( DOCDIR "${DATAROOTDIR}/doc/${CMAKE_PROJECT_NAME}" )
+ENDIF()
+
+SET( DATAPATH "${DATAROOTDIR}/${CMAKE_PROJECT_NAME}" )
+SET( TARGETPATH ${BINDIR} )
+SET( DOCPATH ${DOCDIR} )
+
 
 SET(ROOTDIR "${CMAKE_CURRENT_SOURCE_DIR}")
 SET(SRCDIR "${ROOTDIR}/src")
 #SET(UIDIR "${ROOTDIR}/ui")
-#SET(DATADIR "${ROOTDIR}/data")
+SET(DATADIR "${ROOTDIR}/data")
 #SET(TRANSLATIONSDIR "${ROOTDIR}/translations")
 
 INCLUDE_DIRECTORIES(${SRCDIR})
 INCLUDE_DIRECTORIES("${CMAKE_BINARY_DIR}/src") # In case of out-of-source build.
 
-#==================================Find Qt5====================================
+# ===== Find Qt5 =====
 
-find_package(Qt5 REQUIRED COMPONENTS Core Widgets)
+# Minimum versio 5.13 for debug messages.
+find_package(Qt5 5.13 REQUIRED COMPONENTS Core Widgets)
 
 # Network PrintSupport Sql Xml LinguistTools
 
@@ -63,7 +79,10 @@
    CMakeCache.txt
 )
 
-#==============================Setup the config.h==============================
+# ===== Setup the config.h =====
+
+SET( CONFIGDATADIR "${DATAPATH}/" )
+SET( CONFIGDOCDIR "${DOCPATH}/" )
 
 # Tell cmake where the configure file is and where
 # to put the output. All variables in config.in written as "${VAR}$
@@ -71,10 +90,20 @@
 # Outputs only in the build directory.
 CONFIGURE_FILE( src/config.in src/config.h )
 
-# ===== Process other CMakeList.txt's =====
+# ===== All sources =====
+
+set( SRCS
+    ${SRCDIR}/main.cpp
+    ${SRCDIR}/bmsapp.cpp
+)
+
+set( HDRS
+    ${SRCDIR}/bmsapp.h
+)
 
 set( SOURCE_FILES
-    ${SRCDIR}/main.cpp
+    ${SRCS}
+    ${HDRS}
 )
 
 # ===== Build the application =====
diff -r d38df7b58026 -r a1e435907f3a src/bmsapp.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/bmsapp.cpp	Mon Feb 07 21:28:26 2022 +0100
@@ -0,0 +1,170 @@
+/**
+ * bmsapp.cpp is part of bmsapp.
+ *
+ * bmsapp is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * bmsapp is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "bmsapp.h"
+#include "config.h"
+
+
+
+bool Bmsapp::ensureDirectoriesExist()
+{
+    QDir resourceDir = Bmsapp::getResourceDir();
+    bool resourceDirSuccess = resourceDir.exists();
+    if (!resourceDirSuccess) {
+	QString errMsg{
+	    QObject::tr("Resource directory \"%1\" is missing.  Some features will be unavailable.").arg(resourceDir.path())
+	};
+	qCritical() << Q_FUNC_INFO << errMsg;
+    }
+
+    return resourceDirSuccess;
+//    return resourceDirSuccess && createDir(PersistentSettings::getUserDir());
+}
+
+
+QDir Bmsapp::getResourceDir()
+{
+    QString dir = qApp->applicationDirPath();
+
+    dir = QString(CONFIGDATADIR);
+
+    qDebug() << "Resource dir" << dir;
+    return dir;
+}
+
+
+
+bool Bmsapp::initialize()
+{
+    ensureDirectoriesExist();
+    readsettings();
+
+    qDebug() << "Loading Database...";
+    return true;
+}
+
+
+
+void Bmsapp::cleanup()
+{
+    qDebug() << "BMSapp is cleaning up.";
+    writesettings();
+}
+
+
+
+void Bmsapp::readsettings()
+{
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope, "mbse", "bmsapp");
+    
+    settings.beginGroup("dbprod");
+    dbProd.host = settings.value("host").toString();
+    if (dbProd.host.isEmpty()) {
+	dbProd.host = "localhost";
+	dbProd.port = "3306";
+	dbProd.name = "bms_prod";
+	dbProd.user = "nobody";
+	dbProd.pass = "secret";
+	dbProd.charset = "utf8";
+	settings.setValue("host", dbProd.host);
+	settings.setValue("port", dbProd.port);
+	settings.setValue("name", dbProd.name);
+	settings.setValue("user", dbProd.user);
+	settings.setValue("pass", dbProd.pass);
+	settings.setValue("charset", dbProd.charset);
+    } else {
+    	dbProd.port = settings.value("port").toString();
+   	dbProd.name = settings.value("name").toString();
+	dbProd.user = settings.value("user").toString();
+    	dbProd.pass = settings.value("pass").toString();
+	dbProd.charset = settings.value("charset").toString();
+    }
+    settings.endGroup();
+    qDebug() << dbProd.host << dbProd.port << dbProd.name << dbProd.pass;
+
+    settings.beginGroup("dbdev");
+    dbDev.host = settings.value("host").toString();
+    if (dbDev.host.isEmpty()) {
+        dbDev.host = "localhost";
+        dbDev.port = "3306";
+        dbDev.name = "bms_dev";
+	dbDev.user = "nobody";
+        dbDev.pass = "secret";
+	dbDev.charset = "utf8";
+        settings.setValue("host", dbDev.host);
+        settings.setValue("port", dbDev.port);
+        settings.setValue("name", dbDev.name);
+	settings.setValue("user", dbDev.user);
+        settings.setValue("pass", dbDev.pass);
+	settings.setValue("charset", dbDev.charset);
+    } else {
+        dbDev.port = settings.value("port").toString();
+        dbDev.name = settings.value("name").toString();
+	dbDev.user = settings.value("user").toString();
+        dbDev.pass = settings.value("pass").toString();
+	dbDev.charset = settings.value("charset").toString();
+    }
+    settings.endGroup();
+    qDebug() << dbDev.host << dbDev.port << dbDev.name << dbDev.pass;
+}
+
+
+
+void Bmsapp::writesettings()
+{
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope, "mbse", "bmsapp");
+
+    settings.beginGroup("dbprod");
+    settings.setValue("host", dbProd.host);
+    settings.setValue("port", dbProd.port);
+    settings.setValue("name", dbProd.name);
+    settings.setValue("user", dbProd.user);
+    settings.setValue("pass", dbProd.pass);
+    settings.setValue("charset", dbProd.charset);
+    settings.endGroup();
+
+    settings.beginGroup("dbdev");
+    settings.setValue("host", dbDev.host);
+    settings.setValue("port", dbDev.port);
+    settings.setValue("name", dbDev.name);
+    settings.setValue("user", dbDev.user);
+    settings.setValue("pass", dbDev.pass);
+    settings.setValue("charset", dbDev.charset);
+    settings.endGroup();
+    qDebug() << "writesettings() done.";
+}
+
+
+
+int Bmsapp::run() {
+
+    int rc = 0;
+
+    if (! initialize()) {
+	cleanup();
+	return 1;
+    }
+
+    rc = qApp->exec();
+
+    cleanup();
+
+    qDebug() << Q_FUNC_INFO << "Cleaned up.  Returning " << rc;
+    return rc;
+}
+
+
+
diff -r d38df7b58026 -r a1e435907f3a src/bmsapp.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/bmsapp.h	Mon Feb 07 21:28:26 2022 +0100
@@ -0,0 +1,86 @@
+#ifndef	_BMSAPP_H
+#define	_BMSAPP_H
+
+#include <QApplication>
+#include <QDateTime>
+#include <QDebug>
+#include <QDir>
+// #include <QDomDocument>
+#include <QFile>
+#include <QList>
+#include <QMenu>
+#include <QMetaProperty>
+#include <QObject>
+#include <QSettings>
+#include <QString>
+#include <QTextStream>
+#include <QTranslator>
+
+
+
+typedef struct IniMySQL
+{
+    QString host;               ///< MySQL host
+    QString port;               ///< MySQL port
+    QString name;               ///< MySQL database
+    QString user;		///< MySQL username
+    QString pass;               ///< MySQL password
+    QString charset;		///< MySQL character encoding
+} IniMySQL;
+
+static IniMySQL dbProd;
+static IniMySQL dbDev;
+
+class MainWindow;
+
+
+class Bmsapp : public QObject
+{
+    Q_OBJECT
+
+    friend class MainWindow;
+
+public:
+    Bmsapp();
+
+    static QDir getResourceDir();	/* System wide resources */
+
+    /**
+     * @brief Blocking call that executes the application.
+     * @return Exit code from the application.
+     */
+    static int run();
+
+private:
+    static MainWindow* m_mainWindow;
+
+    /**
+     * @brief Ensure some directories and files exist.
+     * @return true if all is ok.
+     */
+    static bool ensureDirectoriesExist();
+
+    /**
+     * @brief Run before showing MainWindow, does all system setup.
+     * @return false if anything goes awry, true if it's ok to start MainWindow.
+     */
+    static bool initialize();
+
+    /**
+     * @brief Run after QApplication exits to clean up shit, close database, etc.
+     */
+    static void cleanup();
+
+    /**
+     * @brief Read user settings for the MySQL connection.
+     */
+    static void readsettings();
+
+    /**
+     * @brief Write or update the user settings for the MySQL connection.
+     */
+    static void writesettings();
+};
+
+
+#endif
diff -r d38df7b58026 -r a1e435907f3a src/config.in
--- a/src/config.in	Sun Feb 06 16:52:20 2022 +0100
+++ b/src/config.in	Mon Feb 07 21:28:26 2022 +0100
@@ -1,6 +1,9 @@
 #ifndef CONFIG_IN
 #define CONFIG_IN
 
+#define CONFIGDATADIR "${CONFIGDATADIR}"
+#define CONFIGDOCDIR "${CONFIGDOCDIR}"
+
 #define VERSIONSTRING "${bmsapp_VERSION_MAJOR}.${bmsapp_VERSION_MINOR}.${bmsapp_VERSION_PATCH}"
 
 #endif
diff -r d38df7b58026 -r a1e435907f3a src/main.cpp
--- a/src/main.cpp	Sun Feb 06 16:52:20 2022 +0100
+++ b/src/main.cpp	Mon Feb 07 21:28:26 2022 +0100
@@ -16,9 +16,14 @@
  */
 #include <QApplication>
 #include <QCommandLineParser>
+#include <QDebug>
+#include <QDate>
+#include <QMessageBox>
+
 //#include <QLocale>
 //#include <QTranslator>
 
+#include "bmsapp.h"
 #include "config.h"
 
 
@@ -33,6 +38,36 @@
 #endif
     );
     app.setApplicationVersion(VERSIONSTRING);
+    app.setOrganizationName("mbse");
 
-    return app.exec();
+    /* Setup user ini format */
+    QSettings::setDefaultFormat(QSettings::IniFormat);
+
+    /* Setup commandline parser */
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Brewery Management System Application.");
+    parser.addOptions({
+        // A boolean option with multiple names (-f, --force)
+        {{"c", "config"},
+            QCoreApplication::translate("main", "Start the configuration editor.")},
+	{{"d", "develop"},
+	    QCoreApplication::translate("main", "Use the development database.")},
+    });
+    parser.addHelpOption();
+    parser.addVersionOption();
+    parser.process(app);
+
+    qDebug().noquote() << "Starting" << app.applicationName() << app.applicationVersion() << QDateTime::currentDateTime().toString();
+
+    try {
+	auto mainAppReturnValue = Bmsapp::run();
+	qDebug().noquote() << "Finished" << app.applicationName() << app.applicationVersion() << QDateTime::currentDateTime().toString();
+	return mainAppReturnValue;
+    }
+    catch (const QString &error) {
+	QMessageBox::critical(0,
+            QApplication::tr("Application terminates"),
+            QApplication::tr("The application encountered a fatal error.\nError message:\n%1").arg(error));
+    }
+    return EXIT_FAILURE;
 }