Choice model settings was added

viewmodels/productsviewmodel.cpp

@@ -0,0 +1,78 @@
+#include "productsviewmodel.h"
+
+#include "services/settingsservice.h"
+#include "models/ordersmodel.h"
+
+ProductsViewModel::ProductsViewModel(QObject *parent)
+    : QObject{parent}
+{
+    connect(&m_productsModel, &BaseModel::dataChanged, this, &ProductsViewModel::productsChanged);
+}
+
+QVariantList ProductsViewModel::products() const
+{
+    return m_productsModel.items();
+}
+
+QVariantList ProductsViewModel::order() const
+{
+    QVariantList res;
+
+    for (auto it = m_order.constBegin(); it != m_order.constEnd(); ++it) {
+        QVariantMap product = m_productsModel.item(it.key());
+        product["count"] = it.value().toMap().value("quantity").toDouble();
+        res << product;
+    }
+
+    return res;
+}
+
+float ProductsViewModel::orderSum() const
+{
+    float res = 0.0;
+
+    for (auto it = m_order.constBegin(); it != m_order.constEnd(); ++it) {
+        QVariantMap product = m_productsModel.item(it.key());
+        float price = product.value("price", 0.0).toFloat();
+        float quantity = it.value().toMap().value("quantity").toDouble();
+        res += quantity * price;
+    }
+
+    return res;
+}
+
+void ProductsViewModel::setOrderValue(const QString &productId, float value)
+{
+    if (value) {
+        float price = m_productsModel.itemProperty(productId, "price", 0.0).toFloat();
+        m_order[productId] = QVariantMap {
+            { "productId", productId },
+            { "quantity", value},
+            { "price", price }
+        };
+    } else {
+        m_order.remove(productId);
+    }
+
+    emit orderChanged();
+}
+
+void ProductsViewModel::submitOrder()
+{
+    OrdersModel model;
+    model.submitOrder(QVariantMap {
+        { "userId", settings()->selectedUserId() },
+        { "storeId", settings()->selectedStoreId() },
+        { "products", m_order.values() },
+        { "amount", orderSum() }
+    });
+
+    m_order.clear();
+
+    emit orderChanged();
+}
+
+SettingsService *ProductsViewModel::settings() const
+{
+    return SettingsService::instance();
+}