From 15a13d9648dd4ba34d76c415b0375343faf49c37 Mon Sep 17 00:00:00 2001
From: Anton Thomasson <antonthomasson@gmail.com>
Date: Tue, 25 May 2021 19:37:49 +0200
Subject: [PATCH] Add experimental printer attribute override

---
 harbour-seaprint.pro |  2 ++
 src/ippprinter.cpp   |  4 +++
 src/overrider.cpp    | 62 ++++++++++++++++++++++++++++++++++++++++++++
 src/overrider.h      | 24 +++++++++++++++++
 4 files changed, 92 insertions(+)
 create mode 100644 src/overrider.cpp
 create mode 100644 src/overrider.h

diff --git a/harbour-seaprint.pro b/harbour-seaprint.pro
index a8c3abf..6b6ef36 100644
--- a/harbour-seaprint.pro
+++ b/harbour-seaprint.pro
@@ -44,6 +44,7 @@ SOURCES += src/harbour-seaprint.cpp \
     src/mimer.cpp \
     ppm2pwg/ppm2pwg.cpp \
     ppm2pwg/bytestream/bytestream.cpp \
+    src/overrider.cpp \
     src/svgprovider.cpp
 
 DISTFILES += qml/harbour-seaprint.qml \
@@ -90,6 +91,7 @@ HEADERS += \
     ppm2pwg/UrfPgHdr.codable \
     ppm2pwg/bytestream/bytestream.h \
     ppm2pwg/bytestream/codable.h \
+    src/overrider.h \
     src/papersizes.h \
     src/svgprovider.h
 
diff --git a/src/ippprinter.cpp b/src/ippprinter.cpp
index 4a59853..0fabcc0 100644
--- a/src/ippprinter.cpp
+++ b/src/ippprinter.cpp
@@ -2,6 +2,7 @@
 #include <seaprint_version.h>
 #include "mimer.h"
 #include "papersizes.h"
+#include "overrider.h"
 
 IppPrinter::IppPrinter()
 {
@@ -114,6 +115,7 @@ void IppPrinter::refresh() {
             // These won't load anyway...r
             _attrs.remove("printer-icons");
             file.close();
+            Overrider::instance()->apply(_attrs);
         }
         emit attrsChanged();
         UpdateAdditionalDocumentFormats();
@@ -168,6 +170,8 @@ void IppPrinter::getPrinterAttributesFinished(QNetworkReply *reply)
             IppMsg resp(reply);
             qDebug() << resp.getStatus() << resp.getOpAttrs() << resp.getPrinterAttrs();
             _attrs = resp.getPrinterAttrs();
+            Overrider::instance()->apply(_attrs);
+
         }
         catch(const std::exception& e)
         {
diff --git a/src/overrider.cpp b/src/overrider.cpp
new file mode 100644
index 0000000..84969e8
--- /dev/null
+++ b/src/overrider.cpp
@@ -0,0 +1,62 @@
+#include "overrider.h"
+#include <QMutex>
+#include <QStandardPaths>
+#include <QtDebug>
+
+Overrider::Overrider()
+{
+//    QFile file(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation)+"/overrides");
+    QFile file(QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.seaprint_overrides");
+    qDebug() << "AAAAAAAAAAAAAAA" << file.fileName();
+    if(file.open(QIODevice::ReadOnly))
+    {
+        QJsonDocument JsonDocument = QJsonDocument::fromJson(file.readAll());
+
+        _overrides = JsonDocument.object();
+        qDebug() << "overides loaded" << _overrides;
+        file.close();
+    }
+}
+
+Overrider::~Overrider() {
+}
+
+Overrider* Overrider::m_Instance = nullptr;
+
+Overrider* Overrider::instance()
+{
+    static QMutex mutex;
+    if (!m_Instance)
+    {
+        mutex.lock();
+
+        if (!m_Instance)
+            m_Instance = new Overrider();
+
+        mutex.unlock();
+    }
+
+    return m_Instance;
+}
+
+bool Overrider::apply(QJsonObject& attrs)
+{
+    bool applied = false;
+    foreach(const QString& key, _overrides.keys())
+    {
+        if(attrs.contains(key))
+        {
+            QString match = attrs[key].toObject()["value"].toString();
+            if(match != "" && _overrides[key].toObject().contains(match))
+            {
+                QJsonObject overrideden_data = _overrides[key].toObject()[match].toObject();
+                foreach(const QString& o_key, overrideden_data.keys())
+                {
+                    attrs.insert(o_key, overrideden_data[o_key]);
+                }
+                applied=true;
+            }
+        }
+    }
+    return applied;
+}
diff --git a/src/overrider.h b/src/overrider.h
new file mode 100644
index 0000000..4bc7b48
--- /dev/null
+++ b/src/overrider.h
@@ -0,0 +1,24 @@
+#ifndef OVERRIDER_H
+#define OVERRIDER_H
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QFile>
+
+class Overrider
+{
+public:
+    static Overrider* instance();
+    bool apply(QJsonObject& attrs);
+
+private:
+    Overrider();
+    ~Overrider();
+    Overrider(const Overrider &);
+    Overrider& operator=(const Overrider &);
+
+    static Overrider* m_Instance;
+    QJsonObject _overrides;
+};
+
+#endif // OVERRIDER_H