add top orders

client/src/main/java/ru/trader/Main.java

@@ -65,6 +65,7 @@ public class Main extends Application {
         Screeners.loadVEditorStage(getUrl(("vEditor.fxml")));
         Screeners.loadAddOfferStage(getUrl(("oEditor.fxml")));
         Screeners.loadOrdersStage(getUrl(("orders.fxml")));
+        Screeners.loadTopOrdersStage(getUrl(("topOrders.fxml")));
     }
 
     private static URL getUrl(String filename) throws MalformedURLException {

client/src/main/java/ru/trader/controllers/RoutersController.java

@@ -94,14 +94,14 @@ public class RoutersController {
         vendors.getSelectionModel().select(order.getVendor());
     }
 
-    public void addOrders(ActionEvent e){
+    public void addOrders(){
         Collection<OrderModel> orders = Screeners.showOrders(getOffers(), totalBalance.getValue().doubleValue(), cargo.getValue().longValue());
         if (orders!=null){
             tblOrders.getItems().addAll(orders);
         }
     }
 
-    public void removeSelected(ActionEvent e){
+    public void removeSelected(){
         TableView.TableViewSelectionModel<OrderModel> select = tblOrders.getSelectionModel();
         if (!select.isEmpty()){
             int index = select.getSelectedIndex();
@@ -109,8 +109,17 @@ public class RoutersController {
         }
     }
 
-    public void removeAll(ActionEvent e){
+    public void removeAll(){
         tblOrders.getItems().clear();
     }
 
+
+    public void showTopOrders(){
+        MarketModel market = MainController.getMarket();
+        OrderModel order = Screeners.showTopOrders(market.getTop(100, totalBalance.getValue().doubleValue(), cargo.getValue().longValue()));
+        if (order!=null){
+            tblOrders.getItems().add(order);
+        }
+    }
+
 }

client/src/main/java/ru/trader/controllers/Screeners.java

@@ -1,5 +1,6 @@
 package ru.trader.controllers;
 
+import javafx.collections.ObservableList;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Node;
 import javafx.scene.Parent;
@@ -22,12 +23,14 @@ public class Screeners {
     private static Parent vEditorScreen;
     private static Parent editOffersScreen;
     private static Parent ordersScreen;
+    private static Parent topOrdersScreen;
 
     private static MainController mainController;
     private static ItemDescController itemDescController;
     private static VendorEditorController vEditorController;
     private static OffersEditorController oEditorController;
     private static OrdersController ordersController;
+    private static TopOrdersController topOrdersController;
 
     private static FXMLLoader initLoader(URL url){
         FXMLLoader loader = new FXMLLoader(url);
@@ -82,6 +85,15 @@ public class Screeners {
         stage.setScene(new Scene(ordersScreen));
     }
 
+    public static void loadTopOrdersStage(URL fxml) throws IOException {
+        FXMLLoader loader =  initLoader(fxml);
+        topOrdersScreen = loader.load();
+        addStylesheet(topOrdersScreen);
+        topOrdersController = loader.getController();
+        Stage stage = new Stage();
+        stage.setScene(new Scene(topOrdersScreen));
+    }
+
     public static void show(Node node){
         mainController.getMainPane().setCenter(node);
     }
@@ -132,4 +144,8 @@ public class Screeners {
     public static void closeAll() {
         itemDescController.close();
     }
+
+    public static OrderModel showTopOrders(ObservableList<OrderModel> top) {
+        return topOrdersController.showDialog(mainScreen, topOrdersScreen, top);
+    }
 }

client/src/main/java/ru/trader/controllers/TopOrdersController.java

@@ -0,0 +1,71 @@
+package ru.trader.controllers;
+
+import javafx.collections.FXCollections;
+import javafx.event.ActionEvent;
+import javafx.fxml.FXML;
+import javafx.scene.Parent;
+import javafx.scene.control.TableColumn;
+import javafx.scene.control.TableView;
+import javafx.scene.control.cell.TextFieldTableCell;
+import javafx.util.converter.LongStringConverter;
+import org.controlsfx.control.ButtonBar;
+import org.controlsfx.control.action.AbstractAction;
+import org.controlsfx.control.action.Action;
+import org.controlsfx.dialog.Dialog;
+import ru.trader.model.OrderModel;
+
+import java.util.Collection;
+
+public class TopOrdersController {
+    private final Action OK = new AbstractAction("OK") {
+        {
+            ButtonBar.setType(this, ButtonBar.ButtonType.OK_DONE);
+        }
+
+
+        @Override
+        public void handle(ActionEvent event) {
+            Dialog dlg = (Dialog) event.getSource();
+            dlg.hide();
+        }
+    };
+
+    @FXML
+    private TableView<OrderModel> tblOrders;
+
+    @FXML
+    private TableColumn<OrderModel, Long> count;
+
+    private OrderModel order;
+
+    @FXML
+    private void initialize() {
+        count.setCellFactory(TextFieldTableCell.forTableColumn(new LongStringConverter()));
+        tblOrders.getSelectionModel().selectedItemProperty().addListener((v, o, n) -> changeOrder(n));
+    }
+
+
+    public OrderModel showDialog(Parent parent, Parent content, Collection<OrderModel> orders) {
+
+        init(orders);
+
+        Dialog dlg = new Dialog(parent, "TOP заказов");
+        dlg.setContent(content);
+        dlg.getActions().addAll(OK, Dialog.Actions.CANCEL);
+        dlg.setResizable(false);
+        return dlg.show() == OK ? order : null;
+    }
+
+
+    private void init(Collection<OrderModel> orders) {
+        tblOrders.getSelectionModel().clearSelection();
+        tblOrders.setItems(FXCollections.observableArrayList(orders));
+        if (tblOrders.getSortOrder().size()>0)
+            tblOrders.sort();
+    }
+
+    private void changeOrder(OrderModel order) {
+        this.order =  order;
+    }
+
+}

client/src/main/java/ru/trader/model/MarketModel.java

@@ -4,6 +4,7 @@ import javafx.beans.property.ListProperty;
 import javafx.beans.property.ReadOnlyListProperty;
 import javafx.beans.property.SimpleListProperty;
 import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import ru.trader.core.*;
@@ -157,5 +158,13 @@ public class MarketModel {
         return ModelFabrica.getModel(vendor, this);
     }
 
+    public ObservableList<OrderModel> getTop(int limit, double balance, long max){
+        return BindingsHelper.observableList(market.getTop(limit, balance, max), (o) -> {
+            OrderModel model = new OrderModel(asOfferDescModel(o.getSell()), balance, max);
+            model.setBuyer(asModel(o.getBuy()));
+            model.setCount(model.getMax());
+            return model;
+        });
+    }
 
 }

client/src/main/resources/view/routers.fxml

@@ -28,11 +28,16 @@
                 <Label text="Станция:" GridPane.rowIndex="2"/>
                 <ComboBox fx:id="vendors" prefWidth="160" GridPane.columnIndex="1" GridPane.rowIndex="2"/>
                 <Separator GridPane.columnSpan="2" GridPane.rowIndex="3" GridPane.margin="$separator_margin"/>
-                <HBox GridPane.columnSpan="2" GridPane.rowIndex="4" alignment="CENTER" spacing="5">
-                    <Button fx:id="add" text="Добавить" onAction="#addOrders"/>
-                    <Button text="Удалить" onAction="#removeSelected"/>
-                    <Button text="Очистить" onAction="#removeAll" />
-                </HBox>
+                <VBox GridPane.columnSpan="2" GridPane.rowIndex="4" spacing="20">
+                    <HBox alignment="CENTER" spacing="5">
+                        <Button fx:id="add" text="Добавить" onAction="#addOrders"/>
+                        <Button text="Удалить" onAction="#removeSelected"/>
+                        <Button text="Очистить" onAction="#removeAll" />
+                    </HBox>
+                    <HBox alignment="CENTER" spacing="5">
+                        <Button text="TOP 100" onAction="#showTopOrders" />
+                    </HBox>
+                </VBox>
             </GridPane>
         </TitledPane>
         <Pane VBox.vgrow="ALWAYS"/>

client/src/main/resources/view/topOrders.fxml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.cell.*?>
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.control.*?>
+
+
+<?import ru.trader.view.support.cells.DoubleCell?>
+
+<?import ru.trader.view.support.cells.OfferCellValueImpl?>
+<?import ru.trader.view.support.cells.OfferTableCell?>
+<HBox xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1"
+      fx:controller="ru.trader.controllers.TopOrdersController" styleClass="dialog"
+      prefWidth="555">
+    <TableView fx:id="tblOrders" editable="true">
+        <columns>
+            <TableColumn minWidth="160.0" text="Товар">
+                <cellValueFactory><PropertyValueFactory property="name"/></cellValueFactory>
+            </TableColumn>
+            <TableColumn minWidth="120.0" text="Продавец">
+                <cellValueFactory><OfferCellValueImpl property="offer"/></cellValueFactory>
+            </TableColumn>
+            <TableColumn fx:id="count" minWidth="60.0" text="Кол-во">
+                <cellValueFactory><PropertyValueFactory property="count"/></cellValueFactory>
+            </TableColumn>
+            <TableColumn minWidth="120.0" text="Покупатель">
+                <cellValueFactory><OfferCellValueImpl property="buyer"/></cellValueFactory>
+            </TableColumn>
+            <TableColumn fx:id="profit" minWidth="80.0" text="Прибыль" sortType="DESCENDING">
+                <cellFactory><DoubleCell/></cellFactory>
+                <cellValueFactory><PropertyValueFactory property="profit"/></cellValueFactory>
+            </TableColumn>
+        </columns>
+        <columnResizePolicy>
+            <TableView fx:constant="UNCONSTRAINED_RESIZE_POLICY"/>
+        </columnResizePolicy>
+        <sortOrder>
+            <fx:reference source="profit"/>
+        </sortOrder>
+    </TableView>
+</HBox>

core/src/main/java/ru/trader/core/ItemStat.java

@@ -3,10 +3,7 @@ package ru.trader.core;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.TreeSet;
+import java.util.*;
 
 public class ItemStat {
     private final static Logger LOG = LoggerFactory.getLogger(ItemStat.class);
@@ -85,8 +82,8 @@ public class ItemStat {
         return offers.size();
     }
 
-    public Collection<Offer> getOffers() {
-        return Collections.unmodifiableCollection(offers);
+    public NavigableSet<Offer> getOffers() {
+        return Collections.unmodifiableNavigableSet(offers);
     }
 
     public Offer getMin() {

core/src/main/java/ru/trader/core/Market.java

@@ -41,4 +41,6 @@ public interface Market {
     void updatePrice(Offer offer, double price);
 
     void setChange(boolean change);
+
+    Collection<Order> getTop(int limit, double balance, long max);
 }

core/src/main/java/ru/trader/core/MarketSupport.java

@@ -148,5 +148,40 @@ public abstract class MarketSupport implements Market {
     public void setChange(boolean change) {
         this.change = change;
     }
+
+    @Override
+    public Collection<Order> getTop(int limit, double balance, long max){
+        LOG.debug("Get top {}", limit);
+        TreeSet<Order> top = new TreeSet<>();
+        for (Vendor vendor : getVendors()) {
+            LOG.debug("Check vendor {}", vendor);
+            for (Offer sell : vendor.getAllSellOffers()) {
+                long count = Math.min(max, (long) Math.floor(balance / sell.getPrice()));
+                LOG.debug("Sell offer {}, count = {}", sell, count);
+                if (count == 0) continue;
+                Iterator<Offer> buyers = getStatBuy(sell.getItem()).getOffers().descendingIterator();
+                while (buyers.hasNext()){
+                    Offer buy = buyers.next();
+                    Order order = new Order(sell, buy, count);
+                    LOG.debug("Buy offer {} profit = {}", buy, order.getProfit());
+                    if (order.getProfit() <= 0 ) break;
+                    if (top.size() == limit){
+                        LOG.debug("Min order {}", top.first());
+                        if (top.first().getProfit() < order.getProfit()) {
+                            LOG.debug("Add to top");
+                            top.add(order);
+                            top.pollFirst();
+                        } else {
+                            LOG.debug("Is low profit, skip");
+                            break;
+                        }
+                    } else {
+                        top.add(order);
+                    }
+                }
+            }
+        }
+        return top;
+    }
 }
 

core/src/main/java/ru/trader/core/Order.java

@@ -0,0 +1,76 @@
+package ru.trader.core;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Objects;
+
+public class Order implements Comparable<Order> {
+    private Offer sell;
+    private Offer buy;
+    private double profit;
+
+    public Order(Offer sell, Offer buy, long count) {
+        this.sell = sell;
+        this.buy = buy;
+        this.profit = (buy.getPrice() - sell.getPrice()) * count;
+    }
+
+    public Offer getSell() {
+        return sell;
+    }
+
+    public Offer getBuy() {
+        return buy;
+    }
+
+    public double getProfit(){
+        return profit;
+    }
+
+    @Override
+    public int compareTo(@NotNull Order order) {
+        Objects.requireNonNull(order, "Not compare with null");
+        if (this == order) return 0;
+        int cmp = Double.compare(profit, order.profit);
+        if (cmp!=0) return cmp;
+        cmp = Double.compare(sell.getPrice(), order.sell.getPrice());
+        if (cmp!=0) return cmp;
+        cmp = Double.compare(order.buy.getPrice(), buy.getPrice());
+        if (cmp!=0) return cmp;
+        cmp = sell.compareTo(order.sell);
+        if (cmp!=0) return cmp;
+        return buy.compareTo(order.buy);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Order order = (Order) o;
+
+        return Double.compare(order.profit, profit) == 0 && buy.equals(order.buy) && sell.equals(order.sell);
+
+    }
+
+    @Override
+    public int hashCode() {
+        int result;
+        long temp;
+        result = sell.hashCode();
+        result = 31 * result + buy.hashCode();
+        temp = Double.doubleToLongBits(profit);
+        result = 31 * result + (int) (temp ^ (temp >>> 32));
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        final StringBuilder sb = new StringBuilder("Order{");
+        sb.append("sell=").append(sell);
+        sb.append(", buy=").append(buy);
+        sb.append(", profit=").append(profit);
+        sb.append('}');
+        return sb.toString();
+    }
+}

core/src/main/java/ru/trader/core/Vendor.java

@@ -33,6 +33,7 @@ public abstract class Vendor implements Comparable<Vendor> {
         List<Offer> offers = getOffers()
                 .stream()
                 .filter(offer -> offer.hasType(offerType))
+                .sorted()
                 .collect(Collectors.toList());
         return Collections.unmodifiableCollection(offers);
     }