feat: Implemented moving items between players

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

@@ -1,13 +1,17 @@
 package cz.jzitnik.chronos.controllers;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import cz.jzitnik.chronos.entities.Item;
 import cz.jzitnik.chronos.entities.Message;
 import cz.jzitnik.chronos.entities.MessageType;
 import cz.jzitnik.chronos.entities.Player;
+import cz.jzitnik.chronos.payload.errors.FullInventoryError;
 import cz.jzitnik.chronos.payload.errors.ItemNotUsableException;
 import cz.jzitnik.chronos.payload.errors.NotFoundError;
 import cz.jzitnik.chronos.payload.requests.PlayerNameRequest;
 import cz.jzitnik.chronos.payload.responses.InventoryFullResponse;
+import cz.jzitnik.chronos.payload.responses.ItemMoveMessageResponse;
 import cz.jzitnik.chronos.payload.responses.UnifiedResponse;
 import cz.jzitnik.chronos.repository.GameRepository;
 import cz.jzitnik.chronos.repository.ItemRepository;
@@ -19,6 +23,8 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 @CrossOrigin(origins = "*", maxAge = 3600)
 @RestController
 @RequestMapping("/game/players")
@@ -116,4 +122,58 @@ public class PlayerController {
 
         return ResponseEntity.ok(UnifiedResponse.success(item));
     }
+
+    @GetMapping
+    @CheckUser
+    public ResponseEntity<UnifiedResponse<List<Player>, Error>> getAllPlayers(@RequestParam String playerKey) {
+        var player = playerRepository.findByPlayerKey(playerKey).get();
+        var game = player.getGame();
+
+        var players = game.getPlayers();
+
+        return ResponseEntity.ok(UnifiedResponse.success(players));
+    }
+
+    @PostMapping("/send_item")
+    @CheckUser
+    public ResponseEntity<UnifiedResponse<Object, Error>> sendItem(@RequestParam String playerKey, @RequestParam Long itemId, @RequestParam Long playerId) {
+        var player = playerRepository.findByPlayerKey(playerKey).get();
+
+        var player2Optional = playerRepository.findById(playerId);
+        if (player2Optional.isEmpty()) {
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(UnifiedResponse.failure(new NotFoundError("Player with id " + playerId + " was not found!")));
+        }
+        var player2 = player2Optional.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() == null || !item.getOwner().getId().equals(player.getId())) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).body(UnifiedResponse.failure(new Error("You don't own this item!")));
+        }
+        if (player.getInventorySize() - player.getInventory().size() == 0) {
+            // Inventory is full
+            return ResponseEntity.status(HttpStatus.CONFLICT).body(UnifiedResponse.failure(new FullInventoryError("Player has full inventory!")));
+        }
+
+        item.setOwner(player2);
+        itemRepository.save(item);
+
+        ObjectMapper objectMapper = new ObjectMapper();
+        try {
+            var json = objectMapper.writeValueAsString(new ItemMoveMessageResponse(item.getItemType(), player2.getName()));
+
+            var message = new Message(player, json, MessageType.ITEM_MOVED);
+
+            player.getMessages().add(message);
+            playerRepository.save(player);
+
+            return ResponseEntity.ok(UnifiedResponse.success(null));
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException(e);
+        }
+    }
 }

backend/src/main/java/cz/jzitnik/chronos/entities/MessageType.java

@@ -7,5 +7,6 @@ public enum MessageType {
     LOST_ITEM,
     ITEM_USED,
     KEY_FRAGMENT_HANDED_OVER,
+    ITEM_MOVED,
     JOINED,
 }

backend/src/main/java/cz/jzitnik/chronos/payload/errors/FullInventoryError.java

@@ -0,0 +1,7 @@
+package cz.jzitnik.chronos.payload.errors;
+
+public class FullInventoryError extends Error {
+    public FullInventoryError(String message) {
+        super(message);
+    }
+}

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

@@ -0,0 +1,14 @@
+package cz.jzitnik.chronos.payload.responses;
+
+import cz.jzitnik.chronos.entities.ItemType;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Getter
+public class ItemMoveMessageResponse {
+    private ItemType itemType;
+    private String playerToName;
+}