From 397ec82d060853f89393192e65501b07447adfeb Mon Sep 17 00:00:00 2001
From: Josef Rokos <pepa@bukova.info>
Date: Wed, 31 May 2017 16:11:15 +0200
Subject: [PATCH] Added seller interface for preparing shop items from other
 plugins.

---
 commodity/commodityservice.cpp |  5 +++++
 commodity/commodityservice.h   |  2 +-
 shop/isellableservice.h        |  2 ++
 shop/iseller.cpp               |  9 +++++++++
 shop/iseller.h                 | 22 ++++++++++++++++++++++
 shop/shop.pro                  |  6 ++++--
 shop/shopform.cpp              | 30 +++++++++++++++++++++++++-----
 7 files changed, 68 insertions(+), 8 deletions(-)
 create mode 100644 shop/iseller.cpp
 create mode 100644 shop/iseller.h

diff --git a/commodity/commodityservice.cpp b/commodity/commodityservice.cpp
index 941292d..507d6db 100644
--- a/commodity/commodityservice.cpp
+++ b/commodity/commodityservice.cpp
@@ -35,3 +35,8 @@ ShopItemPtr CommodityService::shopItem(int itemId)
     CommodityDataPtr item = this->loadById(itemId);
     return qSharedPointerDynamicCast<ShopItem, CommodityData>(item);
 }
+
+ISeller *CommodityService::seller()
+{
+    return NULL;
+}
diff --git a/commodity/commodityservice.h b/commodity/commodityservice.h
index 0e10d97..028e98b 100644
--- a/commodity/commodityservice.h
+++ b/commodity/commodityservice.h
@@ -15,7 +15,7 @@ public:
     QList<ShopItemPtr> shopItems() override;
     void addedToVoucher(int itemId, int countAdded) override;
     virtual ShopItemPtr shopItem(int itemId) override;
-
+    ISeller *seller() override;
 };
 
 #endif // COMMODITYSERVICE_H
diff --git a/shop/isellableservice.h b/shop/isellableservice.h
index f1b3020..1125009 100644
--- a/shop/isellableservice.h
+++ b/shop/isellableservice.h
@@ -3,6 +3,7 @@
 
 #include "shop_global.h"
 #include "shopitem.h"
+#include "iseller.h"
 #include <QList>
 #include <QSharedPointer>
 
@@ -14,6 +15,7 @@ public:
     virtual QList<ShopItemPtr> shopItems() = 0;
     virtual ShopItemPtr shopItem(int itemId) = 0;
     virtual void addedToVoucher(int itemId, int countAdded) = 0;
+    virtual ISeller *seller() = 0;
 };
 
 #endif // ISELLABLESERVICE_H
diff --git a/shop/iseller.cpp b/shop/iseller.cpp
new file mode 100644
index 0000000..6d75caa
--- /dev/null
+++ b/shop/iseller.cpp
@@ -0,0 +1,9 @@
+#include "iseller.h"
+
+ISeller::ISeller(QObject *parent) : QObject(parent)
+{
+}
+
+ISeller::~ISeller()
+{
+}
diff --git a/shop/iseller.h b/shop/iseller.h
new file mode 100644
index 0000000..de3aa59
--- /dev/null
+++ b/shop/iseller.h
@@ -0,0 +1,22 @@
+#ifndef ISELLER_H
+#define ISELLER_H
+
+#include <QObject>
+
+#include "ishopitem.h"
+#include "shop_global.h"
+
+class SHOPSHARED_EXPORT ISeller : public QObject
+{
+    Q_OBJECT
+public:
+    explicit ISeller(QObject *parent = 0);
+    virtual ~ISeller();
+
+    virtual void prepareItem() = 0;
+
+signals:
+    void itemPrepared(QSharedPointer<IShopItem> item, int count);
+};
+
+#endif // ISELLER_H
diff --git a/shop/shop.pro b/shop/shop.pro
index 84869c4..99f3424 100644
--- a/shop/shop.pro
+++ b/shop/shop.pro
@@ -31,7 +31,8 @@ SOURCES += shop.cpp \
     shopitem.cpp \
     isellableservice.cpp \
     data/favorititem.cpp \
-    eetbatchdialog.cpp
+    eetbatchdialog.cpp \
+    iseller.cpp
 
 HEADERS += shop.h\
         shop_global.h \
@@ -55,7 +56,8 @@ HEADERS += shop.h\
     shopitem.h \
     data/favorititem.h \
     eetbatchdialog.h \
-    favbutton.h
+    favbutton.h \
+    iseller.h
 
 include(../config_plugin.pri)
 
diff --git a/shop/shopform.cpp b/shop/shopform.cpp
index cee9a9c..ac7be7e 100644
--- a/shop/shopform.cpp
+++ b/shop/shopform.cpp
@@ -370,11 +370,31 @@ void ShopForm::addItem(QSharedPointer<IShopItem> item, int count)
         createVoucher();
     }
 
-    ShopService srv;
-    srv.addShopItem(m_voucher, item, count);
-    this->m_itemsModel->addRow(m_voucher->items()[m_voucher->items().count() - 1]);
-    connect(m_voucher->items()[m_voucher->items().count() - 1].data(), SIGNAL(countChanged(int)), this, SLOT(onCountChanged(int)));
-    onCountChanged();
+    IPlugin *plugin = Context::instance().plugin(item->pluginId());
+    IService *service = (plugin != NULL ? plugin->service<IService>() : NULL);
+    ISellableService *selSrv = dynamic_cast<ISellableService*>(service);
+
+    auto addFunc = [this](QSharedPointer<IShopItem> shopItem, int itemCount){
+        ShopService srv;
+        srv.addShopItem(m_voucher, shopItem, itemCount);
+        this->m_itemsModel->addRow(m_voucher->items()[m_voucher->items().count() - 1]);
+        connect(m_voucher->items()[m_voucher->items().count() - 1].data(), SIGNAL(countChanged(int)), this, SLOT(onCountChanged(int)));
+        onCountChanged();
+    };
+
+    if (selSrv != NULL && selSrv->seller() != NULL)
+    {
+        ISeller *seller = selSrv->seller();
+
+        seller->disconnect();
+        connect(seller, &ISeller::itemPrepared, addFunc);
+
+        seller->prepareItem();
+    }
+    else
+    {
+        addFunc(item, count);
+    }
 
     ui->actualReceipt->scrollToBottom();
     ui->commoditySearch->setFocus();