104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
#include "productsviewmodel.h"
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#include "models/basemodel.h"
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#include "services/settingsservice.h"
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ProductsViewModel::ProductsViewModel(QObject *parent)
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: QObject{parent}
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{
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connect(m_productsModel, &BaseModel::dataChanged, this, &ProductsViewModel::productsChanged);
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connect(m_restsModel, &BaseModel::dataChanged, this, &ProductsViewModel::productsChanged);
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connect(settings(), &SettingsService::selectedStoreIdChanged, this, &ProductsViewModel::productsChanged);
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}
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QVariantList ProductsViewModel::products() const
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{
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QVariantList res;
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for (const QVariant &product : m_productsModel->items()) {
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QVariantMap item = product.toMap();
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item["rest"] = productRest(item.value("id").toString());
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res << item;
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}
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return res;
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}
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QVariantList ProductsViewModel::order() const
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{
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QVariantList res;
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for (auto it = m_order.constBegin(); it != m_order.constEnd(); ++it) {
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QVariantMap product = m_productsModel->item(it.key());
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product["count"] = it.value().toMap().value("quantity").toDouble();
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res << product;
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}
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return res;
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}
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float ProductsViewModel::orderSum() const
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{
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float res = 0.0;
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for (auto it = m_order.constBegin(); it != m_order.constEnd(); ++it) {
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QVariantMap product = m_productsModel->item(it.key());
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float price = product.value("price", 0.0).toFloat();
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float quantity = it.value().toMap().value("quantity").toDouble();
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res += quantity * price;
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}
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return res;
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}
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void ProductsViewModel::setOrderValue(const QString &productId, float value)
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{
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if (value) {
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float price = m_productsModel->itemProperty(productId, "price", 0.0).toFloat();
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m_order[productId] = QVariantMap {
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{ "productId", productId },
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{ "quantity", value},
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{ "price", price }
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};
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} else {
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m_order.remove(productId);
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}
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emit orderChanged();
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}
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void ProductsViewModel::submitOrder()
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{
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m_ordersModel->submitItem({
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{ "userId", settings()->selectedUserId() },
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{ "storeId", settings()->selectedStoreId() },
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{ "products", m_order.values() },
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{ "amount", orderSum() }
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});
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updateRests();
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m_order.clear();
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emit orderChanged();
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}
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float ProductsViewModel::productRest(const QString &productId) const
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{
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QString storeId = settings()->selectedStoreId();
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return m_restsModel->productRest(storeId, productId);
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}
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SettingsService *ProductsViewModel::settings() const
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{
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return SettingsService::instance();
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}
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void ProductsViewModel::updateRests() const
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{
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QString storeId = settings()->selectedStoreId();
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for (auto it = m_order.constBegin(); it != m_order.constEnd(); ++it) {
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float quantity = it.value().toMap().value("quantity", 0.0).toFloat();
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float rest = productRest(it.key());
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m_restsModel->submitRest(storeId, it.key(), rest - quantity);
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}
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}
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