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elliebot/src/EllieBot/Modules/Gambling/PlantPick/PlantPickService.cs

392 lines
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13 KiB
C#

#nullable disable
using LinqToDB;
using LinqToDB.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using EllieBot.Common.ModuleBehaviors;
using EllieBot.Db.Models;
using SixLabors.Fonts;
using SixLabors.Fonts.Unicode;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using Color = SixLabors.ImageSharp.Color;
using Image = SixLabors.ImageSharp.Image;
namespace EllieBot.Modules.Gambling.Services;
public class PlantPickService : IEService, IExecNoCommand
{
//channelId/last generation
public ConcurrentDictionary<ulong, long> LastGenerations { get; } = new();
private readonly DbService _db;
private readonly IBotStrings _strings;
private readonly IImageCache _images;
private readonly FontProvider _fonts;
private readonly ICurrencyService _cs;
private readonly CommandHandler _cmdHandler;
private readonly EllieRandom _rng;
private readonly DiscordSocketClient _client;
private readonly GamblingConfigService _gss;
private readonly GamblingService _gs;
private readonly ConcurrentHashSet<ulong> _generationChannels;
private readonly SemaphoreSlim _pickLock = new(1, 1);
public PlantPickService(
DbService db,
IBotStrings strings,
IImageCache images,
FontProvider fonts,
ICurrencyService cs,
CommandHandler cmdHandler,
DiscordSocketClient client,
GamblingConfigService gss,
GamblingService gs)
{
_db = db;
_strings = strings;
_images = images;
_fonts = fonts;
_cs = cs;
_cmdHandler = cmdHandler;
_rng = new();
_client = client;
_gss = gss;
_gs = gs;
using var uow = db.GetDbContext();
var guildIds = client.Guilds.Select(x => x.Id).ToList();
var configs = uow.Set<GuildConfig>()
.AsQueryable()
.Include(x => x.GenerateCurrencyChannelIds)
.Where(x => guildIds.Contains(x.GuildId))
.ToList();
_generationChannels = new(configs.SelectMany(c => c.GenerateCurrencyChannelIds.Select(obj => obj.ChannelId)));
}
public Task ExecOnNoCommandAsync(IGuild guild, IUserMessage msg)
=> PotentialFlowerGeneration(msg);
private string GetText(ulong gid, LocStr str)
=> _strings.GetText(str, gid);
public bool ToggleCurrencyGeneration(ulong gid, ulong cid)
{
bool enabled;
using var uow = _db.GetDbContext();
var guildConfig = uow.GuildConfigsForId(gid, set => set.Include(gc => gc.GenerateCurrencyChannelIds));
var toAdd = new GCChannelId
{
ChannelId = cid
};
if (!guildConfig.GenerateCurrencyChannelIds.Contains(toAdd))
{
guildConfig.GenerateCurrencyChannelIds.Add(toAdd);
_generationChannels.Add(cid);
enabled = true;
}
else
{
var toDelete = guildConfig.GenerateCurrencyChannelIds.FirstOrDefault(x => x.Equals(toAdd));
if (toDelete is not null)
uow.Remove(toDelete);
_generationChannels.TryRemove(cid);
enabled = false;
}
uow.SaveChanges();
return enabled;
}
public IEnumerable<GuildConfigExtensions.GeneratingChannel> GetAllGeneratingChannels()
{
using var uow = _db.GetDbContext();
var chs = uow.Set<GuildConfig>().GetGeneratingChannels();
return chs;
}
/// <summary>
/// Get a random currency image stream, with an optional password sticked onto it.
/// </summary>
/// <param name="pass">Optional password to add to top left corner.</param>
/// <returns>Stream of the currency image</returns>
public async Task<(Stream, string)> GetRandomCurrencyImageAsync(string pass)
{
var curImg = await _images.GetCurrencyImageAsync();
if (curImg is null)
return (new MemoryStream(), null);
if (string.IsNullOrWhiteSpace(pass))
{
// determine the extension
using var load = Image.Load(curImg);
var format = load.Metadata.DecodedImageFormat;
// return the image
return (curImg.ToStream(), format?.FileExtensions.FirstOrDefault() ?? "png");
}
// get the image stream and extension
return AddPassword(curImg, pass);
}
/// <summary>
/// Add a password to the image.
/// </summary>
/// <param name="curImg">Image to add password to.</param>
/// <param name="pass">Password to add to top left corner.</param>
/// <returns>Image with the password in the top left corner.</returns>
private (Stream, string) AddPassword(byte[] curImg, string pass)
{
// draw lower, it looks better
pass = pass.TrimTo(10, true).ToLowerInvariant();
using var img = Image.Load<Rgba32>(curImg);
// choose font size based on the image height, so that it's visible
var font = _fonts.NotoSans.CreateFont(img.Height / 12.0f, FontStyle.Bold);
img.Mutate(x =>
{
// measure the size of the text to be drawing
var size = TextMeasurer.MeasureSize(pass,
new RichTextOptions(font)
{
Origin = new PointF(0, 0)
});
// fill the background with black, add 5 pixels on each side to make it look better
x.FillPolygon(Color.ParseHex("00000080"),
new PointF(0, 0),
new PointF(size.Width + 5, 0),
new PointF(size.Width + 5, size.Height + 10),
new PointF(0, size.Height + 10));
var strikeoutRun = new RichTextRun
{
Start = 0,
End = pass.GetGraphemeCount(),
Font = font,
StrikeoutPen = new SolidPen(Color.White, 2),
TextDecorations = TextDecorations.Strikeout
};
// draw the password over the background
x.DrawText(new RichTextOptions(font)
{
Origin = new(0, 0),
TextRuns =
[
strikeoutRun
]
},
pass,
new SolidBrush(Color.White));
});
// return image as a stream for easy sending
var format = img.Metadata.DecodedImageFormat;
return (img.ToStream(format), format?.FileExtensions.FirstOrDefault() ?? "png");
}
private Task PotentialFlowerGeneration(IUserMessage imsg)
{
if (imsg is not SocketUserMessage msg || msg.Author.IsBot)
return Task.CompletedTask;
if (imsg.Channel is not ITextChannel channel)
return Task.CompletedTask;
if (!_generationChannels.Contains(channel.Id))
return Task.CompletedTask;
_ = Task.Run(async () =>
{
try
{
var config = _gss.Data;
var lastGeneration = LastGenerations.GetOrAdd(channel.Id, DateTime.MinValue.ToBinary());
var rng = new EllieRandom();
if (DateTime.UtcNow - TimeSpan.FromSeconds(config.Generation.GenCooldown)
< DateTime.FromBinary(lastGeneration)) //recently generated in this channel, don't generate again
return;
var num = rng.Next(1, 101) + (config.Generation.Chance * 100);
if (num > 100 && LastGenerations.TryUpdate(channel.Id, DateTime.UtcNow.ToBinary(), lastGeneration))
{
var dropAmount = config.Generation.MinAmount;
var dropAmountMax = config.Generation.MaxAmount;
if (dropAmountMax > dropAmount)
dropAmount = new EllieRandom().Next(dropAmount, dropAmountMax + 1);
if (dropAmount > 0)
{
var prefix = _cmdHandler.GetPrefix(channel.Guild.Id);
var toSend = dropAmount == 1
? GetText(channel.GuildId, strs.curgen_sn(config.Currency.Sign))
+ " "
+ GetText(channel.GuildId, strs.pick_sn(prefix))
: GetText(channel.GuildId, strs.curgen_pl(dropAmount, config.Currency.Sign))
+ " "
+ GetText(channel.GuildId, strs.pick_pl(prefix));
var pw = config.Generation.HasPassword ? _gs.GeneratePassword().ToUpperInvariant() : null;
IUserMessage sent;
var (stream, ext) = await GetRandomCurrencyImageAsync(pw);
await using (stream)
sent = await channel.SendFileAsync(stream, $"currency_image.{ext}", toSend);
await AddPlantToDatabase(channel.GuildId,
channel.Id,
_client.CurrentUser.Id,
sent.Id,
dropAmount,
pw);
}
}
}
catch
{
}
});
return Task.CompletedTask;
}
public async Task<long> PickAsync(
ulong gid,
ITextChannel ch,
ulong uid,
string pass)
{
long amount;
ulong[] ids;
await using (var uow = _db.GetDbContext())
{
// this method will sum all plants with that password,
// remove them, and get messageids of the removed plants
pass = pass?.Trim().TrimTo(10, true)?.ToUpperInvariant();
// gets all plants in this channel with the same password
var entries = await uow.GetTable<PlantedCurrency>()
.Where(x => x.ChannelId == ch.Id && pass == x.Password)
.DeleteWithOutputAsync();
if (!entries.Any())
return 0;
amount = entries.Sum(x => x.Amount);
ids = entries.Select(x => x.MessageId).ToArray();
}
if (amount > 0)
await _cs.AddAsync(uid, amount, new("currency", "collect"));
try
{
_ = ch.DeleteMessagesAsync(ids);
}
catch { }
// return the amount of currency the user picked
return amount;
}
public async Task<ulong?> SendPlantMessageAsync(
ulong gid,
IMessageChannel ch,
string user,
long amount,
string pass)
{
try
{
// get the text
var prefix = _cmdHandler.GetPrefix(gid);
var msgToSend = GetText(gid, strs.planted(Format.Bold(user), amount + _gss.Data.Currency.Sign));
if (amount > 1)
msgToSend += " " + GetText(gid, strs.pick_pl(prefix));
else
msgToSend += " " + GetText(gid, strs.pick_sn(prefix));
//get the image
var (stream, ext) = await GetRandomCurrencyImageAsync(pass);
// send it
await using (stream)
{
var msg = await ch.SendFileAsync(stream, $"img.{ext}", msgToSend);
// return sent message's id (in order to be able to delete it when it's picked)
return msg.Id;
}
}
catch (Exception ex)
{
// if sending fails, return null as message id
Log.Warning(ex, "Sending plant message failed: {Message}", ex.Message);
return null;
}
}
public async Task<bool> PlantAsync(
ulong gid,
IMessageChannel ch,
ulong uid,
string user,
long amount,
string pass)
{
// normalize it - no more than 10 chars, uppercase
pass = pass?.Trim().TrimTo(10, true).ToUpperInvariant();
// has to be either null or alphanumeric
if (!string.IsNullOrWhiteSpace(pass) && !pass.IsAlphaNumeric())
return false;
// remove currency from the user who's planting
if (await _cs.RemoveAsync(uid, amount, new("put/collect", "put")))
{
// try to send the message with the currency image
var msgId = await SendPlantMessageAsync(gid, ch, user, amount, pass);
if (msgId is null)
{
// if it fails it will return null, if it returns null, refund
await _cs.AddAsync(uid, amount, new("put/collect", "refund"));
return false;
}
// if it doesn't fail, put the plant in the database for other people to pick
await AddPlantToDatabase(gid, ch.Id, uid, msgId.Value, amount, pass);
return true;
}
// if user doesn't have enough currency, fail
return false;
}
private async Task AddPlantToDatabase(
ulong gid,
ulong cid,
ulong uid,
ulong mid,
long amount,
string pass)
{
await using var uow = _db.GetDbContext();
uow.Set<PlantedCurrency>()
.Add(new()
{
Amount = amount,
GuildId = gid,
ChannelId = cid,
Password = pass,
UserId = uid,
MessageId = mid
});
await uow.SaveChangesAsync();
}
}