From 7343174056948ee45f2ed08692c8556e5f16a01a Mon Sep 17 00:00:00 2001
From: jordi fita mas <jordi@tandem.blog>
Date: Thu, 19 Dec 2024 01:53:12 +0100
Subject: [PATCH] Add login and reservations page in a StackView

---
 src/CMakeLists.txt       |  2 ++
 src/LoginPage.qml        | 59 ++++++++++++++++++++++++++++++++
 src/Main.qml             | 72 +++++++++++++++-------------------------
 src/ReservationsPage.qml | 23 +++++++++++++
 src/database.cpp         | 23 ++++++++++---
 src/database.h           |  4 +++
 6 files changed, 134 insertions(+), 49 deletions(-)
 create mode 100644 src/LoginPage.qml
 create mode 100644 src/ReservationsPage.qml

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b7fb64e..6ea5db8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -10,7 +10,9 @@ qt_add_qml_module(${PROJECT_NAME}
         database.cpp database.h
     QML_FILES
         ErrorNotification.qml
+        LoginPage.qml
         Main.qml
+        ReservationsPage.qml
         SelectableLabel.qml
 )
 
diff --git a/src/LoginPage.qml b/src/LoginPage.qml
new file mode 100644
index 0000000..1bc4ff6
--- /dev/null
+++ b/src/LoginPage.qml
@@ -0,0 +1,59 @@
+pragma ComponentBehavior: Bound
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+
+Page {
+    id: page
+
+    title: qsTr("Login")
+
+    ColumnLayout {
+        Label {
+            text: qsTr("&User:")
+        }
+
+        TextField {
+            id: user
+
+            focus: true
+
+            validator: RegularExpressionValidator {
+                regularExpression: /[^s].*/
+            }
+
+            onAccepted: function () {
+                loginAction.trigger();
+            }
+        }
+
+        Label {
+            text: qsTr("&Password:")
+        }
+
+        TextField {
+            id: password
+
+            echoMode: TextInput.Password
+
+            onAccepted: function () {
+                loginAction.trigger();
+            }
+        }
+
+        Button {
+            action: loginAction
+        }
+    }
+
+    Action {
+        id: loginAction
+
+        enabled: user.acceptableInput
+        text: "&Login"
+
+        onTriggered: function () {
+            Database.open(user.text, password.text);
+        }
+    }
+}
diff --git a/src/Main.qml b/src/Main.qml
index b801cbb..8e131ac 100644
--- a/src/Main.qml
+++ b/src/Main.qml
@@ -1,50 +1,35 @@
 pragma ComponentBehavior: Bound
 import QtQuick
 import QtQuick.Controls
-import QtQuick.Layouts
 import Camper
 
 ApplicationWindow {
     height: 480
-    title: qsTr("Camper")
+    title: pageStack.title ? qsTr("%1 — Camper").arg(pageStack.title) : qsTr("Camper")
     visible: true
     width: 640
 
-    ColumnLayout {
-        Label {
-            text: qsTr("&User:")
+    StackView {
+        id: pageStack
+
+        property string title: (currentItem as Page)?.title ?? ""
+
+        anchors.fill: parent
+        focus: true
+        initialItem: loginPage
+    }
+
+    Component {
+        id: loginPage
+
+        LoginPage {
         }
+    }
 
-        TextField {
-            id: user
+    Component {
+        id: reservationsPage
 
-            focus: true
-
-            validator: RegularExpressionValidator {
-                regularExpression: /[^s].*/
-            }
-
-            onAccepted: function () {
-                loginAction.trigger();
-            }
-        }
-
-        Label {
-            text: qsTr("&Password:")
-        }
-
-        TextField {
-            id: password
-
-            echoMode: TextInput.Password
-
-            onAccepted: function () {
-                loginAction.trigger();
-            }
-        }
-
-        Button {
-            action: loginAction
+        ReservationsPage {
         }
     }
 
@@ -60,22 +45,19 @@ ApplicationWindow {
         }
     }
 
-    Action {
-        id: loginAction
-
-        enabled: user.acceptableInput
-        text: "&Login"
-
-        onTriggered: function () {
-            Database.open(user.text, password.text);
-        }
-    }
-
     Connections {
+        function onClosed() {
+            pageStack.replace(null, loginPage);
+        }
+
         function onErrorOcurred(errorMessage) {
             errorNotification.show(errorMessage);
         }
 
+        function onOpened() {
+            pageStack.replace(reservationsPage);
+        }
+
         target: Database
     }
 }
diff --git a/src/ReservationsPage.qml b/src/ReservationsPage.qml
new file mode 100644
index 0000000..0226768
--- /dev/null
+++ b/src/ReservationsPage.qml
@@ -0,0 +1,23 @@
+pragma ComponentBehavior: Bound
+import QtQuick
+import QtQuick.Controls
+
+Page {
+    title: qsTr("Reservations")
+
+    Button {
+        action: logoutAction
+    }
+
+    Action {
+        id: logoutAction
+
+        icon.name: "system-log-out"
+        shortcut: "Ctrl+L"
+        text: qsTr("&Log out")
+
+        onTriggered: function () {
+            Database.close();
+        }
+    }
+}
diff --git a/src/database.cpp b/src/database.cpp
index 71620dd..56f2812 100644
--- a/src/database.cpp
+++ b/src/database.cpp
@@ -6,6 +6,7 @@
 Database::Database(QObject *parent)
     : QObject{parent}
     , m_pool{}
+    , m_connectionName{"main"}
 {
     m_pool.setMaxThreadCount(1);
     m_pool.setExpiryTimeout(-1);
@@ -14,16 +15,30 @@ Database::Database(QObject *parent)
 QFuture<void> Database::open(const QString &user, const QString &password)
 {
     return QtConcurrent::run(&m_pool, [this, user, password]() {
-        QString connectionName("main");
-        QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL", connectionName);
+        QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL", m_connectionName);
         db.setConnectOptions("service=camper; options=-csearch_path=camper,public");
-        if (!db.open(user, password)) {
+        if (db.open(user, password)) {
+            emit opened();
+        } else {
             const QString errorMessage(db.lastError().text());
             db = QSqlDatabase(); // Otherwise removeDatabase complains is still being used.
-            QSqlDatabase::removeDatabase(connectionName);
+            QSqlDatabase::removeDatabase(m_connectionName);
             emit errorOcurred(errorMessage);
         }
     });
 }
 
+QFuture<void> Database::close()
+{
+    return QtConcurrent::run(&m_pool, [this]() {
+        QSqlDatabase db = QSqlDatabase::database(m_connectionName);
+        if (!db.isValid()) {
+            return;
+        }
+        db.close();
+        QSqlDatabase::removeDatabase(m_connectionName);
+        emit closed();
+    });
+}
+
 #include "moc_database.cpp"
diff --git a/src/database.h b/src/database.h
index 1c6b5b5..eb53aab 100644
--- a/src/database.h
+++ b/src/database.h
@@ -16,12 +16,16 @@ public:
     explicit Database(QObject *parent = nullptr);
 
     Q_INVOKABLE QFuture<void> open(const QString &user, const QString &password);
+    Q_INVOKABLE QFuture<void> close();
 
 signals:
+    void closed();
     void errorOcurred(const QString &errorMessage);
+    void opened();
 
 private:
     QThreadPool m_pool;
+    QString m_connectionName;
 };
 
 #endif // DATABASE_H