kimi gone wild

lib/odinsea/channel/handler/duey.ex

@@ -0,0 +1,224 @@
+defmodule Odinsea.Channel.Handler.Duey do
+  @moduledoc """
+  Handles Duey (parcel delivery) system operations.
+
+  Ported from: src/handling/channel/handler/DueyHandler.java
+
+  Duey allows players to:
+  - Send items and mesos to other players
+  - Receive packages from other players
+  - Remove/delete packages
+
+  ## Status Codes
+  - 19 = Successful
+  - 18 = One-of-a-kind item already in receiver's delivery
+  - 17 = Character unable to receive parcel
+  - 15 = Same account
+  - 14 = Name does not exist
+  - 16 = Not enough space
+  - 12 = Not enough mesos
+
+  ## Main Handlers
+  - handle_duey_operation/2 - All Duey operations (send, receive, remove)
+  """
+
+  require Logger
+
+  alias Odinsea.Net.Packet.In
+  alias Odinsea.Game.Character
+  alias Odinsea.Channel.Packets
+
+  # ============================================================================
+  # Duey Operations
+  # ============================================================================
+
+  @doc """
+  Handles all Duey operations (CP_DUEY_ACTION / 0x48).
+
+  Operations:
+  - 1: Start Duey (load packages)
+  - 3: Send item/mesos
+  - 5: Receive package
+  - 6: Remove package
+  - 8: Close Duey
+
+  Note: The original Java handler is mostly commented out.
+  This is a stub implementation for future development.
+
+  Reference: DueyHandler.DueyOperation()
+  """
+  def handle_duey_operation(packet, client_pid) do
+    case Character.get_state_by_client(client_pid) do
+      {:ok, character_id, char_state} ->
+        # Check conversation state (should be 2 for Duey)
+        # For now, allow without strict check since this is a stub
+        
+        operation = In.decode_byte(packet)
+        handle_duey_op(operation, packet, client_pid, character_id, char_state)
+
+      {:error, reason} ->
+        Logger.warn("Failed to handle Duey operation: #{inspect(reason)}")
+    end
+  end
+
+  # ============================================================================
+  # Individual Operations
+  # ============================================================================
+
+  # Operation 1: Start Duey - Load packages
+  defp handle_duey_op(1, packet, client_pid, character_id, _char_state) do
+    # AS13Digit = packet.decodeString()  # 13 digit AS code (unused)
+    
+    # TODO: Load packages from database
+    # packages = load_items(character_id)
+    
+    # TODO: Send package list to client
+    # packet = Packets.send_duey(10, packages)
+    # send(client_pid, {:send_packet, packet})
+    
+    Logger.debug("Duey start: character #{character_id}")
+    :ok
+  end
+
+  # Operation 3: Send item/mesos
+  defp handle_duey_op(3, packet, client_pid, character_id, char_state) do
+    inventory_id = In.decode_byte(packet)
+    item_pos = In.decode_short(packet)
+    amount = In.decode_short(packet)
+    mesos = In.decode_int(packet)
+    recipient = In.decode_string(packet)
+    quick_delivery = In.decode_byte(packet) > 0
+    
+    # Calculate cost
+    # tax = GameConstants.getTaxAmount(mesos)
+    # final_cost = mesos + tax + (if quick_delivery, do: 0, else: 5000)
+    
+    # TODO: Validate recipient exists
+    # TODO: Validate recipient is not same account
+    # TODO: Validate sender has enough mesos
+    # TODO: Validate item exists if sending item
+    # TODO: Check receiver has space
+    # TODO: Add to database
+    # TODO: Send success/failure packet
+    
+    Logger.debug("Duey send: #{mesos} mesos (quick=#{quick_delivery}) to #{recipient}, item inv=#{inventory_id}, pos=#{item_pos}, amount=#{amount}, character #{character_id}")
+    
+    # Send failure for now (not implemented)
+    send(client_pid, {:send_packet, duey_error(17)})
+    :ok
+  end
+
+  # Operation 5: Receive package
+  defp handle_duey_op(5, packet, client_pid, character_id, _char_state) do
+    package_id = In.decode_int(packet)
+    
+    # TODO: Load package from database
+    # package = load_single_item(package_id, character_id)
+    
+    # TODO: Validate package exists
+    # TODO: Check inventory space
+    # TODO: Add item/mesos to character
+    # TODO: Remove from database
+    # TODO: Send remove packet
+    
+    Logger.debug("Duey receive: package #{package_id}, character #{character_id}")
+    
+    # Send failure for now
+    send(client_pid, {:send_packet, duey_error(17)})
+    :ok
+  end
+
+  # Operation 6: Remove package
+  defp handle_duey_op(6, packet, client_pid, character_id, _char_state) do
+    package_id = In.decode_int(packet)
+    
+    # TODO: Remove from database
+    # remove_item_from_db(package_id, character_id)
+    
+    # TODO: Send remove confirmation
+    # packet = Packets.remove_item_from_duey(true, package_id)
+    # send(client_pid, {:send_packet, packet})
+    
+    Logger.debug("Duey remove: package #{package_id}, character #{character_id}")
+    :ok
+  end
+
+  # Operation 8: Close Duey
+  defp handle_duey_op(8, _packet, client_pid, character_id, _char_state) do
+    # TODO: Set conversation state to 0
+    Logger.debug("Duey close: character #{character_id}")
+    :ok
+  end
+
+  # Unknown operation
+  defp handle_duey_op(operation, _packet, _client_pid, character_id, _char_state) do
+    Logger.warning("Unknown Duey operation #{operation} from character #{character_id}")
+    :ok
+  end
+
+  # ============================================================================
+  # Database Operations (Stubs)
+  # ============================================================================
+
+  @doc """
+  Loads all packages for a character.
+  """
+  def load_items(character_id) do
+    # TODO: Query dueypackages table
+    # SELECT * FROM dueypackages WHERE RecieverId = ?
+    []
+  end
+
+  @doc """
+  Loads a single package by ID.
+  """
+  def load_single_item(package_id, character_id) do
+    # TODO: Query dueypackages table
+    # SELECT * FROM dueypackages WHERE PackageId = ? and RecieverId = ?
+    nil
+  end
+
+  @doc """
+  Adds mesos to database.
+  """
+  def add_meso_to_db(mesos, sender_name, recipient_id, is_online) do
+    # TODO: INSERT INTO dueypackages (RecieverId, SenderName, Mesos, TimeStamp, Checked, Type)
+    # VALUES (?, ?, ?, ?, ?, 3)
+    false
+  end
+
+  @doc """
+  Adds item to database.
+  """
+  def add_item_to_db(item, quantity, mesos, sender_name, recipient_id, is_online) do
+    # TODO: INSERT INTO dueypackages with item data
+    # Use ItemLoader.DUEY.saveItems for item serialization
+    false
+  end
+
+  @doc """
+  Removes item from database.
+  """
+  def remove_item_from_db(package_id, character_id) do
+    # TODO: DELETE FROM dueypackages WHERE PackageId = ? and RecieverId = ?
+    :ok
+  end
+
+  @doc """
+  Marks messages as received (updates Checked flag).
+  """
+  def receive_msg(character_id) do
+    # TODO: UPDATE dueypackages SET Checked = 0 WHERE RecieverId = ?
+    :ok
+  end
+
+  # ============================================================================
+  # Helper Functions
+  # ============================================================================
+
+  defp duey_error(code) do
+    # TODO: Implement proper Duey error packet
+    # Packets.send_duey(code, nil)
+    <<>>
+  end
+end