Added total spent amount to vendor page, and added analytics method to get total vendor spend.

src/main/java/com/andrewlalis/perfin/control/EditVendorController.java

@@ -1,19 +1,25 @@
 package com.andrewlalis.perfin.control;
 
 import com.andrewlalis.javafx_scene_router.RouteSelectionListener;
+import com.andrewlalis.perfin.data.AnalyticsRepository;
 import com.andrewlalis.perfin.data.DataSource;
+import com.andrewlalis.perfin.data.TimestampRange;
 import com.andrewlalis.perfin.data.TransactionVendorRepository;
+import com.andrewlalis.perfin.data.util.CurrencyUtil;
 import com.andrewlalis.perfin.model.Profile;
 import com.andrewlalis.perfin.model.TransactionVendor;
 import com.andrewlalis.perfin.view.component.validation.ValidationApplier;
 import com.andrewlalis.perfin.view.component.validation.validators.PredicateValidator;
+import javafx.application.Platform;
 import javafx.fxml.FXML;
 import javafx.scene.control.Button;
+import javafx.scene.control.Label;
 import javafx.scene.control.TextArea;
 import javafx.scene.control.TextField;
 
 import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
 
 import static com.andrewlalis.perfin.PerfinApp.router;
 
@@ -24,6 +30,8 @@ public class EditVendorController implements RouteSelectionListener {
     @FXML public TextArea descriptionField;
     @FXML public Button saveButton;
 
+    @FXML public Label totalSpentField;
+
     @FXML public void initialize() {
         var nameValid = new ValidationApplier<>(new PredicateValidator<String>()
                 .addTerminalPredicate(s -> s != null && !s.isBlank(), "Name is required.")
@@ -63,9 +71,19 @@ public class EditVendorController implements RouteSelectionListener {
             this.vendor = tv;
             nameField.setText(vendor.getName());
             descriptionField.setText(vendor.getDescription());
+            Profile.getCurrent().dataSource().mapRepoAsync(
+                    AnalyticsRepository.class,
+                    repo -> repo.getVendorSpend(TimestampRange.unbounded(), vendor.id)
+            ).thenAccept(amounts -> {
+                String text = amounts.stream()
+                        .map(CurrencyUtil::formatMoney)
+                        .collect(Collectors.joining(", "));
+                Platform.runLater(() -> totalSpentField.setText(text.isBlank() ? "None" : text));
+            });
         } else {
             nameField.setText(null);
             descriptionField.setText(null);
+            totalSpentField.setText(null);
         }
     }
 

src/main/java/com/andrewlalis/perfin/data/AnalyticsRepository.java

@@ -1,6 +1,7 @@
 package com.andrewlalis.perfin.data;
 
 import com.andrewlalis.perfin.data.util.Pair;
+import com.andrewlalis.perfin.model.MoneyValue;
 import com.andrewlalis.perfin.model.TransactionCategory;
 import com.andrewlalis.perfin.model.TransactionVendor;
 
@@ -14,4 +15,13 @@ public interface AnalyticsRepository extends Repository, AutoCloseable {
     List<Pair<TransactionCategory, BigDecimal>> getIncomeByCategory(TimestampRange range, Currency currency);
     List<Pair<TransactionCategory, BigDecimal>> getIncomeByRootCategory(TimestampRange range, Currency currency);
     List<Pair<TransactionVendor, BigDecimal>> getSpendByVendor(TimestampRange range, Currency currency);
+
+    /**
+     * Gets the amount spent, grouped by currency, on a specific vendor.
+     * @param range The time range to search in.
+     * @param vendorId The id of the vendor to search with.
+     * @return A list of money values with the total amount spent in each
+     * currency. An empty list is returned if no money is spent.
+     */
+    List<MoneyValue> getVendorSpend(TimestampRange range, long vendorId);
 }

src/main/java/com/andrewlalis/perfin/data/impl/JdbcAnalyticsRepository.java

@@ -5,6 +5,7 @@ import com.andrewlalis.perfin.data.TimestampRange;
 import com.andrewlalis.perfin.data.util.DbUtil;
 import com.andrewlalis.perfin.data.util.Pair;
 import com.andrewlalis.perfin.model.AccountEntry;
+import com.andrewlalis.perfin.model.MoneyValue;
 import com.andrewlalis.perfin.model.TransactionCategory;
 import com.andrewlalis.perfin.model.TransactionVendor;
 import javafx.scene.paint.Color;
@@ -72,6 +73,38 @@ public record JdbcAnalyticsRepository(Connection conn) implements AnalyticsRepos
         );
     }
 
+    @Override
+    public List<MoneyValue> getVendorSpend(TimestampRange range, long vendorId) {
+        return DbUtil.findAll(
+                conn,
+                """
+                SELECT
+                    SUM(transaction.amount) AS total,
+                    transaction.currency AS currency,
+                FROM transaction
+                WHERE
+                    transaction.vendor_id = ? AND
+                    transaction.timestamp >= ? AND
+                    transaction.timestamp <= ? AND
+                    '!exclude' NOT IN (
+                        SELECT tt.name
+                        FROM transaction_tag tt
+                        LEFT JOIN transaction_tag_join ttj ON tt.id = ttj.tag_id
+                        WHERE ttj.transaction_id = transaction.id
+                    ) AND
+                    (SELECT COUNT(ae.id) FROM account_entry ae WHERE ae.transaction_id = transaction.id) = 1 AND
+                    (SELECT COUNT(ae.id) FROM account_entry ae WHERE ae.transaction_id = transaction.id AND ae.type = 'CREDIT') = 1
+                GROUP BY transaction.currency
+                ORDER BY total DESC""",
+                List.of(vendorId, range.start(), range.end()),
+                rs -> {
+                    BigDecimal total = rs.getBigDecimal(1);
+                    String currencyCode = rs.getString(2);
+                    return new MoneyValue(total, Currency.getInstance(currencyCode));
+                }
+        );
+    }
+
     @Override
     public void close() throws Exception {
         conn.close();

src/main/resources/edit-vendor.fxml

@@ -11,24 +11,45 @@
         <Label text="Edit Vendor" styleClass="bold-text,large-font,std-padding"/>
     </top>
     <center>
-        <VBox>
+        <ScrollPane fitToWidth="true" fitToHeight="true">
-            <PropertiesPane hgap="5" vgap="5" styleClass="std-padding" maxWidth="500">
+            <VBox style="-fx-max-width: 500px;">
+                <!-- Basic properties -->
+                <PropertiesPane hgap="5" vgap="5" styleClass="std-padding">
                     <columnConstraints>
                         <ColumnConstraints hgrow="NEVER" halignment="LEFT" minWidth="150"/>
                         <ColumnConstraints hgrow="ALWAYS" halignment="RIGHT"/>
                     </columnConstraints>
 
-                <Label text="Name" labelFor="${nameField}"/>
+                    <Label text="Name" labelFor="${nameField}" styleClass="bold-text"/>
                     <TextField fx:id="nameField"/>
 
-                <Label text="Description" labelFor="${descriptionField}"/>
+                    <Label text="Description" labelFor="${descriptionField}" styleClass="bold-text"/>
-                <TextArea fx:id="descriptionField" wrapText="true"/>
+                    <TextArea
+                            fx:id="descriptionField"
+                            wrapText="true"
+                            style="-fx-pref-height: 100px; -fx-min-height: 100px;"
+                    />
                 </PropertiesPane>
+
+                <!-- Some stats about the vendor -->
+                <PropertiesPane hgap="5" vgap="5" styleClass="std-padding">
+                    <columnConstraints>
+                        <ColumnConstraints hgrow="NEVER" halignment="LEFT" minWidth="150"/>
+                        <ColumnConstraints hgrow="ALWAYS" halignment="RIGHT"/>
+                    </columnConstraints>
+
+                    <Label text="Total Spent" labelFor="${totalSpentField}" styleClass="bold-text"/>
+                    <Label fx:id="totalSpentField" styleClass="mono-font"/>
+                </PropertiesPane>
+
+
+                <!-- Buttons -->
                 <Separator/>
                 <HBox styleClass="std-padding,std-spacing" alignment="CENTER_RIGHT">
                     <Button text="Save" fx:id="saveButton" onAction="#save"/>
                     <Button text="Cancel" onAction="#cancel"/>
                 </HBox>
             </VBox>
+        </ScrollPane>
     </center>
 </BorderPane>