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#pragma warning disable CS1591 // 缺少对公共可见类型或成员的 XML 注释
using System.Text.Json.Serialization;
namespace klbotlib.Modules;
/// <summary>
/// 抽奖模块
/// </summary>
public class RollinModule : SingleTypeModule<MessagePackage>
{
[JsonInclude]
private bool _hasRollStarted = false;
[JsonInclude]
[HiddenStatus]
private readonly HashSet<long> _hash = [];
[JsonInclude]
private readonly List<long> _list = [];
[JsonInclude]
private long _owner = -1;
public override string FriendlyName => "抽奖模块";
public override bool UseSignature => false;
public override string HelpInfo => "发起快速抽奖：发送“抽奖”并@机器人和抽奖包括的群成员，发起快速抽奖。抽奖结果直接公布\n\n发起自愿抽奖：@机器人并发送“抽奖”，可以发起一次自愿抽奖；接下来@机器人并发送“加入”的人员可以参与抽奖；人员加入完成后，发起人@机器人并发送“开始抽奖”可以启动抽奖并公示抽奖结果";
public override async Task<Message?> Processor(MessageContext context, MessagePackage msg)
{
if (msg.TargetIds.Count == 0 || !msg.TargetIds.Contains(HostBot.SelfId))
return null;
string text = msg.AsPlain().Trim();
if (text == "抽奖")
{
if (msg.TargetIds.Count == 1) //只@了机器人，主动加入
{
if (_hasRollStarted)
return $"当前已经有尚未结束的抽奖。发起人：[{_owner}]";
_hasRollStarted = true;
_owner = context.UserId;
return $"用户 [{_owner}] 发起了一次抽奖。@机器人并发送“加入”参与抽奖";
}
else
{
List<long> targets = [.. msg.TargetIds];
_ = targets.Remove(HostBot.SelfId);
int index = Random.Shared.Next(targets.Count);
return $"抽奖结果为：{targets[index]}";
}
}
else if (text == "加入")
{
if (!_hasRollStarted)
return "当前没有进行中的抽奖";
if (_hash.Add(context.UserId))
{
_list.Add(context.UserId);
return $"用户 {{\\tag:{context.UserId}}} 加入了抽奖。\n当前参与人数：{_hash.Count}";
}
else
return $"你已经加入过了，{ModuleAccess.GetModule<FuckModule>().SingleSentence()}";
}
else if (text == "开始抽奖")
{
if (context.UserId != _owner)
return @$"只有抽奖发起人可以控制抽奖进程";
if (_list.Count == 0)
{
//抽奖结束，清理与重置
_hash.Clear();
_list.Clear();
_owner = -1;
_hasRollStarted = false;
return "无人参加，抽奖已直接结束";
}
List<Message> msgs = ["抽奖开始。参与者列表：\n"];
msgs.AddRange(_list.Select(id => new MessageAt(id)));
await Messaging.ReplyMessage(context, new MessagePackage(msgs));
int index = Random.Shared.Next(_list.Count);
long winner = _list[index];
//抽奖结束，清理与重置
_hash.Clear();
_list.Clear();
_owner = -1;
_hasRollStarted = false;
return @$"抽奖结果为：{{\tag:{winner}}}";
}
else
return null;
}
}