feat: Implemented droping items

backend/src/main/java/cz/jzitnik/chronos/controllers/CharacterController.java

@@ -83,10 +83,10 @@ public class CharacterController {
         var characterOptional = characterRepository.findById(interactionRequest.getCharacterId());
 
         if (characterOptional.isEmpty()) {
-            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(UnifiedResponse.failure(null));
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(UnifiedResponse.empty(false));
         }
         if (!characterOptional.get().getRoom().equals(player.getCurrentRoom())) {
-            return ResponseEntity.badRequest().body(UnifiedResponse.failure(null));
+            return ResponseEntity.badRequest().body(UnifiedResponse.empty(false));
         }
         if (characterOptional.get().isInteractedWith()) {
             return ResponseEntity.noContent().build();
@@ -133,4 +133,4 @@ public class CharacterController {
 
         return ResponseEntity.ok(UnifiedResponse.success(TakeItemsResponse.DONE));
     }
-}
+}

backend/src/main/java/cz/jzitnik/chronos/controllers/PlayerController.java

@@ -176,4 +176,27 @@ public class PlayerController {
             throw new RuntimeException(e);
         }
     }
+
+    @PostMapping("/drop_item")
+    @CheckUser
+    public ResponseEntity<UnifiedResponse<Object, Error>> dropItem(@RequestParam String playerKey, @RequestParam Long itemId) {
+        var player = playerRepository.findByPlayerKey(playerKey).get();
+
+        var itemOptional = itemRepository.findById(itemId);
+        if (itemOptional.isEmpty()) {
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(UnifiedResponse.failure(new NotFoundError("Item with id " + itemId + " was not found!")));
+        }
+        var item = itemOptional.get();
+        if (!item.getOwner().getId().equals(player.getId())) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(UnifiedResponse.failure(new Error("You do not own this item!")));
+        }
+
+        var room = player.getCurrentRoom();
+        item.setOwner(null);
+        item.setRoom(room);
+
+        itemRepository.save(item);
+
+        return ResponseEntity.ok(UnifiedResponse.empty(true));
+    }
 }

backend/src/main/java/cz/jzitnik/chronos/payload/responses/UnifiedResponse.java

@@ -29,7 +29,7 @@ public class UnifiedResponse<T, U> {
     }
 
     // Static factory method for empty response
-    public static <T, U> UnifiedResponse<T, U> empty() {
+    public static <T, U> UnifiedResponse<T, U> empty(boolean success) {
-        return new UnifiedResponse<>(Optional.empty(), Optional.empty(), false);
+        return new UnifiedResponse<>(Optional.empty(), Optional.empty(), success);
     }
 }

frontend/src/main/java/cz/jzitnik/api/ApiService.java

@@ -150,4 +150,10 @@ public interface ApiService {
             @Query("itemId") Long itemId,
             @Query("playerId") Long playerId
     );
+
+    @POST("game/players/drop_item")
+    Call<UnifiedResponse<Object, Error>> dropItem(
+            @Query("playerKey") String playerKey,
+            @Query("itemId") Long itemId
+    );
 }

frontend/src/main/java/cz/jzitnik/game/CommandPalette.java

@@ -1,6 +1,7 @@
 package cz.jzitnik.game;
 
 import cz.jzitnik.api.ApiService;
+import cz.jzitnik.api.types.Item;
 import cz.jzitnik.utils.Cli;
 import cz.jzitnik.utils.ConfigPathProvider;
 import lombok.AllArgsConstructor;
@@ -23,6 +24,7 @@ public class CommandPalette {
         CHAT_OPEN,
         CHAT_SEND,
         PLAYER_LIST_OPEN,
+        DROP_ITEM,
         CHECK_WINNABLE,
         EXIT,
     }
@@ -84,6 +86,7 @@ public class CommandPalette {
         allCommands.add(new Command("Otevřít chat", CommandType.CHAT_OPEN));
         allCommands.add(new Command("Odeslat zprávu do chatu", CommandType.CHAT_SEND));
         allCommands.add(new Command("Zobrazit list všech hráčů", CommandType.PLAYER_LIST_OPEN));
+        allCommands.add(new Command("Vyhodit item z inventáře", CommandType.DROP_ITEM));
         allCommands.add(new Command("Zkontrolovat vyhratelnost hry", CommandType.CHECK_WINNABLE));
         allCommands.add(new Command("Odejít ze hry", CommandType.EXIT));
 
@@ -157,6 +160,32 @@ public class CommandPalette {
                 var playerList = new PlayerList(apiService, playerKey);
                 playerList.display();
 
+                yield displayIndex();
+            }
+            case DROP_ITEM -> {
+                var response = apiService.getMe(playerKey).execute();
+                var me = response.body().getData().get();
+                var inventory = me.getInventory();
+
+                if (inventory.isEmpty()) {
+                    Cli.error("Máš prázdný inventář!");
+
+                    yield displayIndex();
+                }
+
+                var options = inventory.stream().map(Item::toString).toList();
+                var selectedOptionIndex = Cli.selectOptionIndex(options);
+
+                var selectedItem = inventory.get(selectedOptionIndex);
+
+                var response2 = apiService.dropItem(playerKey, selectedItem.getId()).execute();
+
+                if (response2.code() != 200) {
+                    Cli.error("Nastala chyba při vyhazování itemu!");
+                } else {
+                    Cli.success("Item byl vyhozen!");
+                }
+
                 yield displayIndex();
             }
         };