implemented deletion of locations

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

@@ -14,6 +14,7 @@ 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.jdbc.Query;
 import de.srsoftware.umbrella.core.BaseDb;
 import de.srsoftware.umbrella.core.model.*;
 import de.srsoftware.umbrella.core.model.Location;
@@ -56,6 +57,16 @@ public class SqliteDb extends BaseDb implements StockDb {
 		}
 	}
 
+	@Override
+	public Location delete(DbLocation location) {
+		try {
+			Query.delete().from(TABLE_LOCATIONS).where(ID,equal(location.id())).execute(db);
+			return location;
+		} catch (SQLException e){
+			throw databaseException("Failed to delete \"{0}\"",location.name());
+		}
+	}
+
 	/**
 	 * id, owner, owner_id, code, name, location_id
 	 * @throws SQLException
@@ -333,7 +344,7 @@ public class SqliteDb extends BaseDb implements StockDb {
 			rs.close();
 			if (prop == null) throw databaseException("Failed to add new property to item {0}",itemId);
 			if ("".equals(value)){
-				delete().from(TABLE_ITEM_PROPERTIES).where(ITEM_ID,equal(itemId)).where(PROPERTY_ID,equal(existingPropId)).execute(db);
+				Query.delete().from(TABLE_ITEM_PROPERTIES).where(ITEM_ID,equal(itemId)).where(PROPERTY_ID,equal(existingPropId)).execute(db);
 			} else {
 				replaceInto(TABLE_ITEM_PROPERTIES,ITEM_ID,PROPERTY_ID,VALUE).values(itemId,existingPropId,value).execute(db);
 			}

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

@@ -7,6 +7,7 @@ import java.util.Collection;
 
 public interface StockDb {
 	Property   addNewProperty(long itemId, String name, Object value, String unit);
+	Location   delete(DbLocation location);
 	Collection<DbLocation> listChildLocations(long parentId);
 	Collection<DbLocation> listCompanyLocations(Company company);
 	Collection<Item>       listItemsAt(Location location);

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

@@ -44,7 +44,39 @@ public class StockModule extends BaseHandler implements StockService {
 		if (owner instanceof UmbrellaUser u && user.id() == u.id()) return true;
 		if (owner instanceof Company comp) return companyService().membership(comp.id(),user.id());
 		return false;
+	}
 
+	private boolean deleteLocation(UmbrellaUser user, Location locationRef, HttpExchange ex) throws IOException {
+		var location = locationRef.resolve();
+		var owner = location.owner().resolve();
+		if (!assigned(owner,user)) throw forbidden("You are not allowed to modify \"{0}\"",location);
+		if (!stockDb.listItemsAt(location).isEmpty()) throw forbidden("\"{0}\" cannot be deleted, as it contains items!",location);
+		if (!stockDb.listChildLocations(location.id()).isEmpty()) throw forbidden("\"{0}\" cannot be deleted, as it contains other locations!",location);
+		return sendContent(ex,stockDb.delete(location));
+	}
+
+	@Override
+	public boolean doDelete(Path path, HttpExchange ex) throws IOException {
+		addCors(ex);
+		try {
+			Optional<Token> token = SessionToken.from(ex).map(Token::of);
+			var user = userService().loadUser(token);
+			if (user.isEmpty()) return unauthorized(ex);
+			var head = path.pop();
+			return switch (head) {
+				case LOCATION -> {
+					try {
+						var location = Location.of(Long.parseLong(path.pop()));
+						yield deleteLocation(user.get(), location, ex);
+					} catch (NumberFormatException e){
+						yield super.doGet(path,ex);
+					}
+				}
+				case null, default -> super.doDelete(path,ex);
+			};
+		} catch (UmbrellaException e){
+			return send(ex,e);
+		}
 	}
 
 	@Override