From 1a8b1d4dfb1af936ec68b30af475dcfbeff6453c Mon Sep 17 00:00:00 2001
From: Miquel Lionel <lionel@les-miquelots.net>
Date: Wed, 20 Oct 2021 12:48:09 +0100
Subject: Implement saving attachment to filesystem

---
 message.cpp     | 19 ++++++++++++++++++
 message.h       |  2 ++
 qml/Message.qml | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 80 insertions(+), 1 deletion(-)

diff --git a/message.cpp b/message.cpp
index 4da0fd1..6d02db1 100644
--- a/message.cpp
+++ b/message.cpp
@@ -52,6 +52,25 @@ DcMessage::getTimestamp()
     return QDateTime::fromSecsSinceEpoch (dc_msg_get_timestamp(m_message), Qt::UTC);
 }
 
+bool
+DcMessage::saveAttach(QString dest)
+{
+    if(!dest.isNull()){
+        char *file = dc_msg_get_file(m_message);
+        QString fileUrl{file};
+        dc_str_unref(file);
+        // we need to replace, so we delete file first
+        if (QFile::exists(dest)){
+            if(!QFile::remove(dest))
+                return false;
+        }
+        return QFile::copy(fileUrl, dest);
+    }
+    else{
+        return false;
+    }
+}
+
 void
 DcMessage::setText(QString text)
 {
diff --git a/message.h b/message.h
index 217bba4..5389124 100644
--- a/message.h
+++ b/message.h
@@ -2,6 +2,7 @@
 
 #include <QDateTime>
 #include <QObject>
+#include <QFile>
 
 #include <deltachat.h>
 
@@ -44,6 +45,7 @@ public:
     Q_INVOKABLE QDateTime getTimestamp();
     //Q_INVOKABLE int64_t getReceivedTimestamp();
     //Q_INVOKABLE int64_t getSortTimestamp();
+    Q_INVOKABLE bool saveAttach(QString);
     Q_INVOKABLE void setText(QString);
     Q_INVOKABLE void setFile(QString);
     Q_INVOKABLE QString getText();
diff --git a/qml/Message.qml b/qml/Message.qml
index 9d8f377..fc69e8f 100644
--- a/qml/Message.qml
+++ b/qml/Message.qml
@@ -12,6 +12,8 @@ RowLayout {
 
     property DcMessage message
     property DcContext context
+    property var saveAsUrl: ""
+    property var saveSuccess: false
     readonly property DcContact from: context.getContact(message.fromId)
     readonly property DcMessage quoteMessage: message.quotedMessage
     readonly property DcContact quoteFrom: quoteMessage ? context.getContact(quoteMessage.fromId) : null
@@ -33,6 +35,49 @@ RowLayout {
         }
     }
 
+    Popup {
+        id: saveAsPopup
+
+        modal: true
+        focus: true
+        anchors.centerIn: parent
+        width: 400
+        height: 100
+        padding: 10
+        onClosed: saveAsUrl = ""
+        contentChildren: [
+            Text {
+                text: saveSuccess == true ? "Success !" : "Failure !"
+                bottomPadding: 10
+                font.bold: true
+                font.pixelSize: 14
+            },
+            Text {
+                text: saveSuccess == true ? "The file has been saved locally at <br><b>" + saveAsUrl + "</b>" : "An error was detected. Maybe you<br>dont have enough permissions to copy the file to <br><b>" + saveAsUrl + "</b>"
+                topPadding: 20
+                leftPadding: 10
+                bottomPadding: 20
+            }
+        ]
+    }
+
+    FileDialog {
+        id: saveAsDialog
+
+        title: "Save attachment `" + root.message.filename + "` as ..."
+        folder: shortcuts.home
+        selectFolder: false
+        selectExisting: false
+        onAccepted: {
+            var url = saveAsDialog.fileUrl.toString();
+            if (url.startsWith("file://")) {
+                saveAsUrl = url.substring(7);
+                saveSuccess = root.message.saveAttach(saveAsUrl);
+                saveAsPopup.open();
+            }
+        }
+    }
+
     Rectangle {
         Layout.leftMargin: Kirigami.Units.largeSpacing
         Layout.preferredWidth: messageContents.width
@@ -174,7 +219,7 @@ RowLayout {
                     padding: 5
                     icon.name: "document-save-as"
                     text: "Save attachment"
-                    onClicked: console.log("dummy")
+                    onClicked: saveAsDialog.open()
                 }
 
             }
@@ -220,11 +265,24 @@ RowLayout {
             Menu {
                 id: contextMenu
 
+                Component.onCompleted: {
+                    if (!root.message.filename.length > 0)
+                        contextMenu.removeAction(saveAsContext);
+
+                }
+
                 Action {
                     text: "Info"
                     onTriggered: messageDialog.open()
                 }
 
+                Action {
+                    id: saveAsContext
+
+                    text: "Save attachment as ..."
+                    onTriggered: saveAsDialog.open()
+                }
+
             }
 
         }
-- 
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