working on loading items for location

core/src/main/java/de/srsoftware/umbrella/core/Constants.java

@@ -9,6 +9,9 @@ public class Constants {
 	private Constants(){}
 
 
+
+
+
 	public static final String ADDRESS = "address";
 	public static final String ALLOWED_STATES = "allowed_states";
 	public static final String ATTACHMENTS = "attachments";
@@ -117,6 +120,7 @@ public class Constants {
 	public static final String LANGUAGE             = "language";
 	public static final String LAST_CUSTOMER_NUMBER = "last_customer_number";
 	public static final String LIMIT                = "limit";
+	public static final String LOCATION = "location";
 	public static final String LOCATION_ID = "location_id";
 	public static final String LOGIN                = "login";
 
@@ -144,6 +148,9 @@ public class Constants {
 	public static final String PRIORITY = "priority";
 	public static final String PROJECT = "project";
 	public static final String PROJECT_ID = "project_id";
+	public static final String PROPERTIES = "properties";
+
+	public static final String QUANTITY = "quantity";
 	
 	public static final String RECEIVERS = "receivers";
 	public static final String REDIRECT = "redirect";

core/src/main/java/de/srsoftware/umbrella/core/model/Item.java

@@ -1,12 +1,53 @@
 /* © SRSoftware 2025 */
 package de.srsoftware.umbrella.core.model;
 
+import de.srsoftware.tools.Mappable;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.util.Collection;
+import java.util.HashSet;
+import java.util.Map;
+
+import static de.srsoftware.umbrella.core.Constants.*;
 
-public class Item {
+public class Item implements Mappable {
 	private long id;
-	private String code;
-	private boolean physical;
+	private Mappable owner;
+	private String code, name;
 	private Location location;
 	private Collection<Property> properties;
+
+	private Item(Mappable owner, long id, Location location, String code, String name) {
+		this.owner = owner;
+		this.id = id;
+		this.location = location;
+		this.code = code;
+		this.name = name;
+		this.properties = new HashSet<>();
+	}
+
+	public static Item of(ResultSet rs, Mappable owner, Location location) throws SQLException {
+		var id = rs.getLong(ID);
+		var code = rs.getString(CODE);
+		var name = rs.getString(NAME);
+		return new Item(owner, id, location, code, name);
+	}
+
+	@Override
+	public Map<String, Object> toMap() {
+		return Map.of(
+				OWNER, owner.toMap(),
+				ID, id,
+				LOCATION, location.toMap(),
+				CODE, code,
+				NAME, name,
+				PROPERTIES, properties.stream().map(Property::toMap).toList()
+		);
+	}
+
+	@Override
+	public String toString() {
+		return name;
+	}
 }

core/src/main/java/de/srsoftware/umbrella/core/model/Location.java

@@ -64,4 +64,9 @@ public class Location implements Mappable {
 				NAME,name,
 				DESCRIPTION,description);
 	}
+
+	@Override
+	public String toString() {
+		return name;
+	}
 }

core/src/main/java/de/srsoftware/umbrella/core/model/Property.java

@@ -1,10 +1,27 @@
 /* © SRSoftware 2025 */
 package de.srsoftware.umbrella.core.model;
 
-public class Property {
+import de.srsoftware.tools.Mappable;
+
+import java.util.Map;
+
+import static de.srsoftware.umbrella.core.Constants.*;
+
+public class Property implements Mappable {
 	long id;
 	String name;
 	Object value;
 	String unit;
 	String quantity;
+
+	@Override
+	public Map<String, Object> toMap() {
+		return Map.of(
+				ID, id,
+				NAME, name,
+				VALUE, value,
+				UNIT, unit,
+				QUANTITY, quantity
+		);
+	}
 }

frontend/src/routes/stock/Index.svelte

@@ -10,6 +10,21 @@
 
 
     let top_level = $state(null);
+    let selected = $state(null);
+    let items = $derived(loadItems(selected));
+
+    async function loadItems(loc){
+        if (!loc) return null;
+        const url = api(`stock/items_at/${loc.id}`)
+        const res = await fetch(url,{credentials:'include'});
+        if (res.ok){
+            yikes();
+            return loc.name;
+        } else {
+            error(res);
+            return null;
+        }
+    }
 
     async function load(){
         const url = api('stock/locations/of_user')
@@ -32,12 +47,18 @@
                 {#each top_level as realm,idx}
                 <h3>{realm.name}</h3>
                 {#if realm.locations}
-                <Locations locations={realm.locations} />
+                <Locations locations={realm.locations} bind:selected />
                 {/if}
                 {/each}
                 {/if}
             </td>
             <td class="items">
+                {#if selected}
+                <h3>{selected.name}</h3>
+                {/if}
+                {#if items}
+                <pre>{JSON.stringify(items)}</pre>
+                {/if}
                 <ItemList />
             </td>
             <td class="properties">

frontend/src/routes/stock/Locations.svelte

@@ -3,11 +3,12 @@
     import { error, yikes } from '../../warn.svelte';
     import { t }   from '../../translations.svelte';
 
-    let { locations } = $props();
+    let { locations, selected = $bindable(null) } = $props();
 
     async function toggleChildren(ev, location){
         ev.preventDefault();
         ev.stopPropagation();
+        selected = location;
         if (location.locations) {
             delete location.locations;
         } else {
@@ -32,7 +33,7 @@
     <li onclick={e => toggleChildren(e, location)} class={location.locations?'expanded':'collapsed'}>
         {location.name}
         {#if location.locations}
-        <svelte:self locations={location.locations} />
+        <svelte:self locations={location.locations} bind:selected />
         {/if}
     </li>
     {/each}

stock/src/main/java/de/srsoftware/umbrella/stock/Constants.java

@@ -5,9 +5,11 @@ public class Constants {
 
 	private Constants(){}
 
+
 	public static final String BELOW = "below";
 	public static final String CONFIG_DATABASE = "umbrella.modules.stock.database";
 	public static final String ITEM_ID = "item_id";
+	public static final String ITEMS_AT = "items_at";
 	public static final String LOCATIONS = "locations";
 	public static final String OF_USER = "of_user";
 	public static final String PROPERTY_ID = "prop_id";

stock/src/main/java/de/srsoftware/umbrella/stock/SqliteDb.java

@@ -13,7 +13,9 @@ import static java.lang.System.Logger.Level.ERROR;
 import static java.lang.System.Logger.Level.WARNING;
 import static java.text.MessageFormat.format;
 
+import de.srsoftware.tools.Mappable;
 import de.srsoftware.umbrella.core.BaseDb;
+import de.srsoftware.umbrella.core.ModuleRegistry;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
 import de.srsoftware.umbrella.core.model.Company;
 import de.srsoftware.umbrella.core.model.Item;
@@ -139,6 +141,38 @@ public class SqliteDb extends BaseDb implements StockDb {
 		return List.of();
 	}
 
+	@Override
+	public Collection<Item> listItemsAt(long locationId) {
+		try {
+			var rs = select(ALL).from(TABLE_ITEMS).where(LOCATION_ID,equal(locationId)).exec(db);
+			var list = new ArrayList<Item>();
+
+			while (rs.next()) {
+				var ownerId = rs.getLong(OWNER);
+				Mappable owner = ownerId < 0 ? ModuleRegistry.companyService().get(-ownerId) : ModuleRegistry.userService().loadUser(ownerId);
+				var location = loadLocation(rs.getLong(LOCATION_ID));
+				list.add(Item.of(rs, owner, location));
+			}
+			rs.close();
+			return list;
+		} catch (SQLException e){
+			throw databaseException("Failed to load items at {0}",locationId);
+		}
+	}
+
+	private Location loadLocation(long locationId) {
+		try {
+			var rs = select(ALL).from(TABLE_LOCATIONS).where(ID,equal(locationId)).exec(db);
+			Location loc = null;
+			if (rs.next()) loc = Location.of(rs);
+			rs.close();
+			if (loc != null) return loc;
+			throw databaseException("Failed to load location with id = {0}",locationId);
+		} catch (SQLException e){
+			throw databaseException("Failed to load location with id = {0}",locationId);
+		}
+	}
+
 	@Override
 	public Collection<Location> listLocations(long companyId) {
 		return List.of();

stock/src/main/java/de/srsoftware/umbrella/stock/StockApi.java

@@ -19,6 +19,7 @@ import de.srsoftware.umbrella.core.BaseHandler;
 import de.srsoftware.umbrella.core.ModuleRegistry;
 import de.srsoftware.umbrella.core.api.StockService;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
+import de.srsoftware.umbrella.core.model.Item;
 import de.srsoftware.umbrella.core.model.Location;
 import de.srsoftware.umbrella.core.model.Token;
 import de.srsoftware.umbrella.core.model.UmbrellaUser;
@@ -45,14 +46,26 @@ public class StockApi extends BaseHandler implements StockService {
 			if (user.isEmpty()) return unauthorized(ex);
 			var head = path.pop();
 			return switch (head) {
+				case ITEMS_AT -> {
+					try {
+						var id = Long.parseLong(path.pop());
+						yield getItemsAt(user.get(),id,ex);
+					} catch (Exception e){
+						yield super.doGet(path,ex);
+					}
+				}
 				case LOCATIONS -> getLocations(path,user.get(),ex);
-				case null, default -> doGet(path,ex);
+				case null, default -> super.doGet(path,ex);
 			};
 		} catch (UmbrellaException e){
 			return send(ex,e);
 		}
 	}
 
+	private boolean getItemsAt(UmbrellaUser user, long locationId, HttpExchange ex) throws IOException {
+		return sendContent(ex, stockDb.listItemsAt(locationId).stream().map(Item::toMap).toList());
+	}
+
 	private boolean getLocations(Path path, UmbrellaUser user, HttpExchange ex) throws IOException {
 		var head = path.pop();
 		return switch (head){

stock/src/main/java/de/srsoftware/umbrella/stock/StockDb.java

@@ -14,6 +14,8 @@ public interface StockDb {
 
 	Collection<Item> listItems(long companyId) throws UmbrellaException;
 
+	Collection<Item> listItemsAt(long locationId);
+
 	Collection<Location> listLocations(long companyId);
 
 	Collection<Location> listUserLocations(UmbrellaUser userId);