using System;

using System.Collections.Generic;

using OXGaming.TibiaAPI.Constants;

namespace OXGaming.TibiaAPI.Network.ServerPackets

{

public class NpcOffer : ServerPacket

{

public List<(ushort Id, byte Data, string Name, uint Weight, uint BuyPrice, uint SellPrice)> Offers { get; } =

new List<(ushort Id, byte Data, string Name, uint Weight, uint BuyPrice, uint SellPrice)>();

public string CurrencyName { get; set; }

public string NpcName { get; set; }

public ushort CurrencyItemId { get; set; }

public NpcOffer(Client client)

{

Client = client;

PacketType = ServerPacketType.NpcOffer;

}

public override void ParseFromNetworkMessage(NetworkMessage message)

{

NpcName = message.ReadString();

if (Client.VersionNumber >= 12087995)

{

CurrencyItemId = message.ReadUInt16();

}

if (Client.VersionNumber >= 12409997)

{

// If this is set, it will override `CurrencyItemId`.

CurrencyName = message.ReadString();

}

Offers.Capacity = message.ReadUInt16();

for (var i = 0; i < Offers.Capacity; ++i)

{

var id = message.ReadUInt16();

var data = message.ReadByte();

var name = message.ReadString();

var weight = message.ReadUInt32();

var buyPrice = message.ReadUInt32();

var sellPrice = message.ReadUInt32();

Offers.Add((id, data, name, weight, buyPrice, sellPrice));

}

}

public override void AppendToNetworkMessage(NetworkMessage message)

{

message.Write((byte)ServerPacketType.NpcOffer);

message.Write(NpcName);

if (Client.VersionNumber >= 12087995)

{

message.Write(CurrencyItemId);

}

if (Client.VersionNumber >= 12409997)

{

message.Write(CurrencyName);

}

var count = Math.Min(Offers.Count, ushort.MaxValue);

message.Write((ushort)count);

for (var i = 0; i < count; ++i)

{

var (Id, Data, Name, Weight, BuyPrice, SellPrice) = Offers[i];

message.Write(Id);

message.Write(Data);

message.Write(Name);

message.Write(Weight);

message.Write(BuyPrice);

message.Write(SellPrice);

}

}

}

}