Reorganizing module and submodule folders

src/NadekoBot/Modules/Gambling/Events/ReactionEvent.cs

@@ -0,0 +1,191 @@
+#nullable disable
+using NadekoBot.Services.Database.Models;
+
+namespace NadekoBot.Modules.Gambling.Common.Events;
+
+public class ReactionEvent : ICurrencyEvent
+{
+    public event Func<ulong, Task> OnEnded;
+    private long PotSize { get; set; }
+    public bool Stopped { get; private set; }
+    public bool PotEmptied { get; private set; }
+    private readonly DiscordSocketClient _client;
+    private readonly IGuild _guild;
+    private IUserMessage _msg;
+    private IEmote _emote;
+    private readonly ICurrencyService _cs;
+    private readonly long _amount;
+
+    private readonly Func<CurrencyEvent.Type, EventOptions, long, IEmbedBuilder> _embedFunc;
+    private readonly bool _isPotLimited;
+    private readonly ITextChannel _channel;
+    private readonly ConcurrentHashSet<ulong> _awardedUsers = new();
+    private readonly ConcurrentQueue<ulong> _toAward = new();
+    private readonly Timer _t;
+    private readonly Timer _timeout;
+    private readonly bool _noRecentlyJoinedServer;
+    private readonly EventOptions _opts;
+    private readonly GamblingConfig _config;
+
+    private readonly object stopLock = new();
+
+    private readonly object potLock = new();
+
+    public ReactionEvent(
+        DiscordSocketClient client,
+        ICurrencyService cs,
+        SocketGuild g,
+        ITextChannel ch,
+        EventOptions opt,
+        GamblingConfig config,
+        Func<CurrencyEvent.Type, EventOptions, long, IEmbedBuilder> embedFunc)
+    {
+        _client = client;
+        _guild = g;
+        _cs = cs;
+        _amount = opt.Amount;
+        PotSize = opt.PotSize;
+        _embedFunc = embedFunc;
+        _isPotLimited = PotSize > 0;
+        _channel = ch;
+        _noRecentlyJoinedServer = false;
+        _opts = opt;
+        _config = config;
+
+        _t = new(OnTimerTick, null, Timeout.InfiniteTimeSpan, TimeSpan.FromSeconds(2));
+        if (_opts.Hours > 0)
+            _timeout = new(EventTimeout, null, TimeSpan.FromHours(_opts.Hours), Timeout.InfiniteTimeSpan);
+    }
+
+    private void EventTimeout(object state)
+    {
+        var _ = StopEvent();
+    }
+
+    private async void OnTimerTick(object state)
+    {
+        var potEmpty = PotEmptied;
+        var toAward = new List<ulong>();
+        while (_toAward.TryDequeue(out var x)) toAward.Add(x);
+
+        if (!toAward.Any())
+            return;
+
+        try
+        {
+            await _cs.AddBulkAsync(toAward, toAward.Select(_ => "Reaction Event"), toAward.Select(_ => _amount), true);
+
+            if (_isPotLimited)
+                await _msg.ModifyAsync(m =>
+                    {
+                        m.Embed = GetEmbed(PotSize).Build();
+                    },
+                    new() { RetryMode = RetryMode.AlwaysRetry });
+
+            Log.Information("Awarded {0} users {1} currency.{2}",
+                toAward.Count,
+                _amount,
+                _isPotLimited ? $" {PotSize} left." : "");
+
+            if (potEmpty)
+            {
+                var _ = StopEvent();
+            }
+        }
+        catch (Exception ex)
+        {
+            Log.Warning(ex, "Error adding bulk currency to users");
+        }
+    }
+
+    public async Task StartEvent()
+    {
+        if (Emote.TryParse(_config.Currency.Sign, out var emote))
+            _emote = emote;
+        else
+            _emote = new Emoji(_config.Currency.Sign);
+        _msg = await _channel.EmbedAsync(GetEmbed(_opts.PotSize));
+        await _msg.AddReactionAsync(_emote);
+        _client.MessageDeleted += OnMessageDeleted;
+        _client.ReactionAdded += HandleReaction;
+        _t.Change(TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(2));
+    }
+
+    private IEmbedBuilder GetEmbed(long pot)
+        => _embedFunc(CurrencyEvent.Type.Reaction, _opts, pot);
+
+    private async Task OnMessageDeleted(Cacheable<IMessage, ulong> msg, Cacheable<IMessageChannel, ulong> cacheable)
+    {
+        if (msg.Id == _msg.Id) await StopEvent();
+    }
+
+    public async Task StopEvent()
+    {
+        await Task.Yield();
+        lock (stopLock)
+        {
+            if (Stopped)
+                return;
+            Stopped = true;
+            _client.MessageDeleted -= OnMessageDeleted;
+            _client.ReactionAdded -= HandleReaction;
+            _t.Change(Timeout.Infinite, Timeout.Infinite);
+            _timeout?.Change(Timeout.Infinite, Timeout.Infinite);
+            try
+            {
+                var _ = _msg.DeleteAsync();
+            }
+            catch { }
+
+            var os = OnEnded(_guild.Id);
+        }
+    }
+
+    private Task HandleReaction(
+        Cacheable<IUserMessage, ulong> msg,
+        Cacheable<IMessageChannel, ulong> cacheable,
+        SocketReaction r)
+    {
+        var _ = Task.Run(() =>
+        {
+            if (_emote.Name != r.Emote.Name)
+                return;
+            if ((r.User.IsSpecified
+                    ? r.User.Value
+                    : null) is not IGuildUser gu // no unknown users, as they could be bots, or alts
+                || msg.Id != _msg.Id // same message
+                || gu.IsBot // no bots
+                || (DateTime.UtcNow - gu.CreatedAt).TotalDays <= 5 // no recently created accounts
+                || (_noRecentlyJoinedServer
+                    && // if specified, no users who joined the server in the last 24h
+                    (gu.JoinedAt is null
+                     || (DateTime.UtcNow - gu.JoinedAt.Value).TotalDays
+                     < 1))) // and no users for who we don't know when they joined
+                return;
+            // there has to be money left in the pot
+            // and the user wasn't rewarded
+            if (_awardedUsers.Add(r.UserId) && TryTakeFromPot())
+            {
+                _toAward.Enqueue(r.UserId);
+                if (_isPotLimited && PotSize < _amount)
+                    PotEmptied = true;
+            }
+        });
+        return Task.CompletedTask;
+    }
+
+    private bool TryTakeFromPot()
+    {
+        if (_isPotLimited)
+            lock (potLock)
+            {
+                if (PotSize < _amount)
+                    return false;
+
+                PotSize -= _amount;
+                return true;
+            }
+
+        return true;
+    }
+}