Images service almost done. Slots images moved to /data/images/slots currency_images renamed to currency and moved to data/images/

src/NadekoBot/DataStructures/DisposableImutableList.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace NadekoBot.DataStructures
+{
+
+    public static class DisposableReadOnlyListExtensions
+    {
+        public static IDisposableReadOnlyList<T> AsDisposable<T>(this IReadOnlyList<T> arr) where T : IDisposable
+            => new DisposableReadOnlyList<T>(arr);
+
+        public static IDisposableReadOnlyList<KeyValuePair<TKey, TValue>> AsDisposable<TKey, TValue>(this IReadOnlyList<KeyValuePair<TKey, TValue>> arr) where TValue : IDisposable
+            => new DisposableReadOnlyList<TKey, TValue>(arr);
+    }
+
+    public interface IDisposableReadOnlyList<T> : IReadOnlyList<T>, IDisposable
+    {
+    }
+
+    public class DisposableReadOnlyList<T> : IDisposableReadOnlyList<T>
+        where T : IDisposable
+    {
+        private readonly IReadOnlyList<T> _arr;
+
+        public int Count => _arr.Count;
+
+        public T this[int index] => _arr[index];
+
+        public DisposableReadOnlyList(IReadOnlyList<T> arr)
+        {
+            this._arr = arr;
+        }
+
+        public IEnumerator<T> GetEnumerator()
+            => _arr.GetEnumerator();
+
+        IEnumerator IEnumerable.GetEnumerator()
+            => _arr.GetEnumerator();
+
+        public void Dispose()
+        {
+            foreach (var item in _arr)
+            {
+                item.Dispose();
+            }
+        }
+    }
+
+    public class DisposableReadOnlyList<T, U> : IDisposableReadOnlyList<KeyValuePair<T, U>>
+        where U : IDisposable
+    {
+        private readonly IReadOnlyList<KeyValuePair<T, U>> _arr;
+
+        public int Count => _arr.Count;
+
+        KeyValuePair<T, U> IReadOnlyList<KeyValuePair<T, U>>.this[int index] => _arr[index];
+
+        public DisposableReadOnlyList(IReadOnlyList<KeyValuePair<T, U>> arr)
+        {
+            this._arr = arr;
+        }
+
+        public IEnumerator<KeyValuePair<T, U>> GetEnumerator() =>
+            _arr.GetEnumerator();
+
+        IEnumerator IEnumerable.GetEnumerator() =>
+            _arr.GetEnumerator();
+
+        public void Dispose()
+        {
+            foreach (var item in _arr)
+            {
+                item.Value.Dispose();
+            }
+        }
+    }
+}

src/NadekoBot/Modules/Administration/Commands/SelfCommands.cs

@@ -173,10 +173,8 @@ namespace NadekoBot.Modules.Administration
             [OwnerOnly]
             public async Task ReloadImages()
             {
-                var sw = Stopwatch.StartNew();
-                await NadekoBot.Images.Reload().ConfigureAwait(false);
-                sw.Stop();
-                await Context.Channel.SendConfirmAsync("Images Reloaded").ConfigureAwait(false);
+                var time = await NadekoBot.Images.Reload().ConfigureAwait(false);
+                await Context.Channel.SendConfirmAsync($"Images loaded after {time.TotalSeconds:F3}s!").ConfigureAwait(false);
             }
 
             private static UserStatus SettableUserStatusToUserStatus(SettableUserStatus sus)

src/NadekoBot/Modules/Gambling/Commands/DiceRollCommand.cs

@@ -34,15 +34,11 @@ namespace NadekoBot.Modules.Gambling
                 var num2 = gen % 10;
                 var imageStream = await Task.Run(() =>
                 {
-                    try
-                    {
-                        var ms = new MemoryStream();
-                        new[] { GetDice(num1), GetDice(num2) }.Merge().SaveAsPng(ms);
-                        ms.Position = 0;
-                        return ms;
-                    }
-                    catch { return new MemoryStream(); }
-                });
+                    var ms = new MemoryStream();
+                    new[] { GetDice(num1), GetDice(num2) }.Merge().SaveAsPng(ms);
+                    ms.Position = 0;
+                    return ms;
+                }).ConfigureAwait(false);
 
                 await Context.Channel.SendFileAsync(imageStream, "dice.png", $"{Context.User.Mention} rolled " + Format.Code(gen.ToString())).ConfigureAwait(false);
             }
@@ -82,7 +78,7 @@ namespace NadekoBot.Modules.Gambling
                 await InternallDndRoll(arg, false).ConfigureAwait(false);
             }
 
-            private async Task InternalRoll( int num, bool ordered)
+            private async Task InternalRoll(int num, bool ordered)
             {
                 if (num < 1 || num > 30)
                 {
@@ -209,20 +205,24 @@ namespace NadekoBot.Modules.Gambling
 
             private Image GetDice(int num)
             {
-                const string pathToImage = "data/images/dice";
-                if (num != 10)
+                if (num < 0 || num > 10)
+                    throw new ArgumentOutOfRangeException(nameof(num));
+
+                if (num == 10)
                 {
-                    using (var stream = File.OpenRead(Path.Combine(pathToImage, $"{num}.png")))
-                        return new Image(stream);
+                    var images = NadekoBot.Images.Dice;
+                    using (var imgOneStream = images[1].Value.ToStream())
+                    using (var imgZeroStream = images[0].Value.ToStream())
+                    {
+                        Image imgOne = new Image(imgOneStream);
+                        Image imgZero = new Image(imgZeroStream);
+
+                        return new[] { imgOne, imgZero }.Merge();
+                    }
                 }
-
-                using (var one = File.OpenRead(Path.Combine(pathToImage, "1.png")))
-                using (var zero = File.OpenRead(Path.Combine(pathToImage, "0.png")))
+                using (var die = NadekoBot.Images.Dice[num].Value.ToStream())
                 {
-                    Image imgOne = new Image(one);
-                    Image imgZero = new Image(zero);
-
-                    return new[] { imgOne, imgZero }.Merge();
+                    return new Image(die);
                 }
             }
         }

src/NadekoBot/Modules/Gambling/Commands/FlipCoinCommand.cs

@@ -5,6 +5,7 @@ using NadekoBot.Attributes;
 using NadekoBot.Extensions;
 using NadekoBot.Services;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using Image = ImageSharp.Image;
@@ -32,9 +33,19 @@ namespace NadekoBot.Modules.Gambling
                 if (count == 1)
                 {
                     if (rng.Next(0, 2) == 1)
-                        await Context.Channel.SendFileAsync(_images.Heads, "heads.jpg", $"{Context.User.Mention} flipped " + Format.Code("Heads") + ".").ConfigureAwait(false);
+                    {
+                        using (var heads = _images.Heads.ToStream())
+                        {
+                            await Context.Channel.SendFileAsync(heads, "heads.jpg", $"{Context.User.Mention} flipped " + Format.Code("Heads") + ".").ConfigureAwait(false);
+                        }
+                    }
                     else
-                        await Context.Channel.SendFileAsync(_images.Tails, "tails.jpg", $"{Context.User.Mention} flipped " + Format.Code("Tails") + ".").ConfigureAwait(false);
+                    {
+                        using (var tails = _images.Tails.ToStream())
+                        {
+                            await Context.Channel.SendFileAsync(tails, "tails.jpg", $"{Context.User.Mention} flipped " + Format.Code("Tails") + ".").ConfigureAwait(false);
+                        }
+                    }
                     return;
                 }
                 if (count > 10 || count < 1)
@@ -43,13 +54,17 @@ namespace NadekoBot.Modules.Gambling
                     return;
                 }
                 var imgs = new Image[count];
-                for (var i = 0; i < count; i++)
+                using (var heads = _images.Heads.ToStream())
+                using(var tails = _images.Tails.ToStream())
                 {
-                    imgs[i] = rng.Next(0, 10) < 5 ?
-                                new Image(_images.Heads) :
-                                new Image(_images.Tails);
+                    for (var i = 0; i < count; i++)
+                    {
+                        imgs[i] = rng.Next(0, 10) < 5 ?
+                                    new Image(heads) :
+                                    new Image(tails);
+                    }
+                    await Context.Channel.SendFileAsync(imgs.Merge().ToStream(), $"{count} coins.png").ConfigureAwait(false);
                 }
-                await Context.Channel.SendFileAsync(imgs.Merge().ToStream(), $"{count} coins.png").ConfigureAwait(false);
             }
 
             [NadekoCommand, Usage, Description, Aliases]
@@ -74,9 +89,10 @@ namespace NadekoBot.Modules.Gambling
                 //heads = true
                 //tails = false
 
+                //todo this seems stinky, no time to look at it right now
                 var isHeads = guessStr == "HEADS" || guessStr == "H";
                 bool result = false;
-                Stream imageToSend;
+                IEnumerable<byte> imageToSend;
                 if (rng.Next(0, 2) == 1)
                 {
                     imageToSend = _images.Heads;
@@ -98,8 +114,10 @@ namespace NadekoBot.Modules.Gambling
                 {
                     str = $"{Context.User.Mention}`Better luck next time.`";
                 }
-
-                await Context.Channel.SendFileAsync(imageToSend, "result.png", str).ConfigureAwait(false);
+                using (var toSend = imageToSend.ToStream())
+                {
+                    await Context.Channel.SendFileAsync(toSend, "result.png", str).ConfigureAwait(false);
+                }
             }
         }
     }

src/NadekoBot/Modules/Gambling/Commands/Slots.cs

@@ -21,52 +21,19 @@ namespace NadekoBot.Modules.Gambling
             private static int totalBet = 0;
             private static int totalPaidOut = 0;
 
-            private const string backgroundPath = "data/slots/background.png";
-
-            private static readonly byte[] backgroundBuffer;
-            private static readonly byte[][] numbersBuffer = new byte[10][];
-            private static readonly byte[][] emojiBuffer;
-
             const int alphaCutOut = byte.MaxValue / 3;
 
-            static Slots()
-            {
-                backgroundBuffer = File.ReadAllBytes(backgroundPath);
-
-                for (int i = 0; i < 10; i++)
-                {
-                    numbersBuffer[i] = File.ReadAllBytes("data/slots/" + i + ".png");
-                }
-                int throwaway;
-                var emojiFiles = Directory.GetFiles("data/slots/emojis/", "*.png")
-                    .Where(f => int.TryParse(Path.GetFileNameWithoutExtension(f), out throwaway))
-                    .OrderBy(f => int.Parse(Path.GetFileNameWithoutExtension(f)))
-                    .ToArray();
-
-                emojiBuffer = new byte[emojiFiles.Length][];
-                for (int i = 0; i < emojiFiles.Length; i++)
-                {
-                    emojiBuffer[i] = File.ReadAllBytes(emojiFiles[i]);
-                }
-            }
-
-
-            private static MemoryStream InternalGetStream(string path)
-            {
-                var ms = new MemoryStream();
-                using (var fs = File.Open(path, FileMode.Open))
-                {
-                    fs.CopyTo(ms);
-                    fs.Flush();
-                }
-                ms.Position = 0;
-                return ms;
-            }
-
             //here is a payout chart
             //https://lh6.googleusercontent.com/-i1hjAJy_kN4/UswKxmhrbPI/AAAAAAAAB1U/82wq_4ZZc-Y/DE6B0895-6FC1-48BE-AC4F-14D1B91AB75B.jpg
             //thanks to judge for helping me with this
 
+            private readonly IImagesService _images;
+
+            public Slots()
+            {
+                this._images = NadekoBot.Images;
+            }
+
             public class SlotMachine
             {
                 public const int MaxValue = 5;
@@ -154,7 +121,7 @@ namespace NadekoBot.Modules.Gambling
                 var sb = new StringBuilder();
                 const int bet = 1;
                 int payout = 0;
-                foreach (var key in dict.Keys.OrderByDescending(x=>x))
+                foreach (var key in dict.Keys.OrderByDescending(x => x))
                 {
                     sb.AppendLine($"x{key} occured {dict[key]} times. {dict[key] * 1.0f / tests * 100}%");
                     payout += key * dict[key];
@@ -164,6 +131,7 @@ namespace NadekoBot.Modules.Gambling
             }
 
             static HashSet<ulong> runningUsers = new HashSet<ulong>();
+
             [NadekoCommand, Usage, Description, Aliases]
             public async Task Slot(int amount = 0)
             {
@@ -189,7 +157,7 @@ namespace NadekoBot.Modules.Gambling
                         return;
                     }
                     Interlocked.Add(ref totalBet, amount);
-                    using (var bgFileStream = new MemoryStream(backgroundBuffer))
+                    using (var bgFileStream = NadekoBot.Images.SlotBackground.ToStream())
                     {
                         var bgImage = new ImageSharp.Image(bgFileStream);
 
@@ -199,7 +167,7 @@ namespace NadekoBot.Modules.Gambling
                         {
                             for (int i = 0; i < 3; i++)
                             {
-                                using (var file = new MemoryStream(emojiBuffer[numbers[i]]))
+                                using (var file = _images.SlotEmojis[numbers[i]].ToStream())
                                 {
                                     var randomImage = new ImageSharp.Image(file);
                                     using (var toAdd = randomImage.Lock())
@@ -226,7 +194,7 @@ namespace NadekoBot.Modules.Gambling
                             do
                             {
                                 var digit = printWon % 10;
-                                using (var fs = new MemoryStream(numbersBuffer[digit]))
+                                using (var fs = NadekoBot.Images.SlotNumbers[digit].ToStream())
                                 {
                                     var img = new ImageSharp.Image(fs);
                                     using (var pixels = img.Lock())
@@ -251,7 +219,7 @@ namespace NadekoBot.Modules.Gambling
                             do
                             {
                                 var digit = printAmount % 10;
-                                using (var fs = new MemoryStream(numbersBuffer[digit]))
+                                using (var fs = _images.SlotNumbers[digit].ToStream())
                                 {
                                     var img = new ImageSharp.Image(fs);
                                     using (var pixels = img.Lock())

src/NadekoBot/Modules/Games/Commands/PlantAndPickCommands.cs

@@ -10,6 +10,7 @@ using NLog;
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -97,13 +98,16 @@ namespace NadekoBot.Modules.Games
                                     firstPart = $"{dropAmount} random { NadekoBot.BotConfig.CurrencyPluralName } appeared!";
                                 }
                                 var file = GetRandomCurrencyImage();
-                                var sent = await channel.SendFileAsync(
-                                    file.Item2,
-                                    file.Item1,
-                                    $"❗ {firstPart} Pick it up by typing `{NadekoBot.ModulePrefixes[typeof(Games).Name]}pick`")
-                                        .ConfigureAwait(false);
+                                using (var fileStream = file.Value.ToStream())
+                                {
+                                    var sent = await channel.SendFileAsync(
+                                        fileStream,
+                                        file.Key,
+                                        $"❗ {firstPart} Pick it up by typing `{NadekoBot.ModulePrefixes[typeof(Games).Name]}pick`")
+                                            .ConfigureAwait(false);
 
-                                msgs[0] = sent;
+                                    msgs[0] = sent;
+                                }
 
                                 plantedFlowers.AddOrUpdate(channel.Id, msgs.ToList(), (id, old) => { old.AddRange(msgs); return old; });
                             }
@@ -167,18 +171,15 @@ namespace NadekoBot.Modules.Games
                     return;
                 }
 
-                var file = GetRandomCurrencyImage();
-                IUserMessage msg;
+                var imgData = GetRandomCurrencyImage();
                 var vowelFirst = new[] { 'a', 'e', 'i', 'o', 'u' }.Contains(NadekoBot.BotConfig.CurrencyName[0]);
 
                 var msgToSend = $"Oh how Nice! **{Context.User.Username}** planted {(amount == 1 ? (vowelFirst ? "an" : "a") : amount.ToString())} {(amount > 1 ? NadekoBot.BotConfig.CurrencyPluralName : NadekoBot.BotConfig.CurrencyName)}. Pick it using {NadekoBot.ModulePrefixes[typeof(Games).Name]}pick";
-                if (file == null)
+
+                IUserMessage msg;
+                using (var toSend = imgData.Value.ToStream())
                 {
-                    msg = await Context.Channel.SendConfirmAsync(NadekoBot.BotConfig.CurrencySign).ConfigureAwait(false);
-                }
-                else
-                {
-                    msg = await Context.Channel.SendFileAsync(file.Item2, file.Item1, msgToSend).ConfigureAwait(false);
+                    msg = await Context.Channel.SendFileAsync(toSend, imgData.Key, msgToSend).ConfigureAwait(false);
                 }
 
                 var msgs = new IUserMessage[amount];
@@ -228,12 +229,12 @@ namespace NadekoBot.Modules.Games
                 }
             }
 
-            private static Tuple<string, Stream> GetRandomCurrencyImage()
+            private static KeyValuePair<string, ImmutableArray<byte>> GetRandomCurrencyImage()
             {
                 var rng = new NadekoRandom();
                 var images = NadekoBot.Images.Currency;
 
-                return images[rng.Next(0, images.Count)];
+                return images[rng.Next(0, images.Length)];
             }
 
             int GetRandomNumber()

src/NadekoBot/Services/IImagesService.cs

@@ -1,4 +1,5 @@
-using System;
+using NadekoBot.DataStructures;
+using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.IO;
@@ -10,12 +11,16 @@ namespace NadekoBot.Services
 {
     public interface IImagesService
     {
-        Stream Heads { get; }
-        Stream Tails { get; }
+        ImmutableArray<byte> Heads { get; }
+        ImmutableArray<byte> Tails { get; }
 
-        IImmutableList<Tuple<string, Stream>> Currency { get; }
-        IImmutableList<Tuple<string, Stream>> Dice { get; }
+        ImmutableArray<KeyValuePair<string, ImmutableArray<byte>>> Currency { get; }
+        ImmutableArray<KeyValuePair<string, ImmutableArray<byte>>> Dice { get; }
 
-        Task Reload();
+        ImmutableArray<byte> SlotBackground { get; }
+        ImmutableArray<ImmutableArray<byte>> SlotEmojis { get; }
+        ImmutableArray<ImmutableArray<byte>> SlotNumbers { get; }
+
+        Task<TimeSpan> Reload();
     }
 }

src/NadekoBot/Services/Impl/ImagesService.cs

@@ -1,4 +1,5 @@
-using NLog;
+using NadekoBot.DataStructures;
+using NLog;
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
@@ -15,27 +16,30 @@ namespace NadekoBot.Services.Impl
     {
         private readonly Logger _log;
 
-        private const string headsPath = "data/images/coins/heads.png";
-        private const string tailsPath = "data/images/coins/tails.png";
+        private const string basePath = "data/images/";
 
-        private const string currencyImagesPath = "data/currency_images";
-        private const string diceImagesPath = "data/images/dice";
+        private const string headsPath = basePath + "coins/heads.png";
+        private const string tailsPath = basePath + "coins/tails.png";
 
-        private byte[] heads;
-        public Stream Heads => new MemoryStream(heads, false);
+        private const string currencyImagesPath = basePath + "currency";
+        private const string diceImagesPath = basePath + "dice";
+
+        private const string slotBackgroundPath = basePath + "slots/background.png";
+        private const string slotNumbersPath = basePath + "slots/numbers/";
+        private const string slotEmojisPath = basePath + "slots/emojis/";
+
+
+        public ImmutableArray<byte> Heads { get; private set; }
+        public ImmutableArray<byte> Tails { get; private set; }
 
-        private byte[] tails;
-        public Stream Tails => new MemoryStream(tails, false);
         //todo C#7
-        private IReadOnlyDictionary<string, byte[]> currency;
-        public IImmutableList<Tuple<string, Stream>> Currency =>
-            currency.Select(x => new Tuple<string, Stream>(x.Key, new MemoryStream(x.Value, false)))
-                          .ToImmutableArray();
+        public ImmutableArray<KeyValuePair<string, ImmutableArray<byte>>> Currency { get; private set; }
 
-        private IReadOnlyDictionary<string, byte[]> dice;
-        public IImmutableList<Tuple<string, Stream>> Dice =>
-            dice.Select(x => new Tuple<string, Stream>(x.Key, new MemoryStream(x.Value, false)))
-                          .ToImmutableArray();
+        public ImmutableArray<KeyValuePair<string, ImmutableArray<byte>>> Dice { get; private set; }
+
+        public ImmutableArray<byte> SlotBackground { get; private set; }
+        public ImmutableArray<ImmutableArray<byte>> SlotNumbers { get; private set; }
+        public ImmutableArray<ImmutableArray<byte>> SlotEmojis { get; private set; }
 
         private ImagesService()
         {
@@ -49,18 +53,41 @@ namespace NadekoBot.Services.Impl
             return srvc;
         }
 
-        public Task Reload() => Task.Run(() =>
+        public Task<TimeSpan> Reload() => Task.Run(() =>
         {
             try
             {
                 _log.Info("Loading images...");
                 var sw = Stopwatch.StartNew();
-                heads = File.ReadAllBytes(headsPath);
-                tails = File.ReadAllBytes(tailsPath);
+                Heads = File.ReadAllBytes(headsPath).ToImmutableArray();
+                Tails = File.ReadAllBytes(tailsPath).ToImmutableArray();
 
-                currency = Directory.GetFiles(currencyImagesPath).ToDictionary(x => Path.GetFileName(x), x => File.ReadAllBytes(x));
-                dice = Directory.GetFiles(diceImagesPath).ToDictionary(x => Path.GetFileName(x), x => File.ReadAllBytes(x));
+                Currency = Directory.GetFiles(currencyImagesPath)
+                    .Select(x => new KeyValuePair<string, ImmutableArray<byte>>(
+                                        Path.GetFileName(x), 
+                                        File.ReadAllBytes(x).ToImmutableArray()))
+                    .ToImmutableArray();
+
+                Dice = Directory.GetFiles(diceImagesPath)
+                                .OrderBy(x => int.Parse(Path.GetFileNameWithoutExtension(x)))
+                                .Select(x => new KeyValuePair<string, ImmutableArray<byte>>(x, 
+                                                    File.ReadAllBytes(x).ToImmutableArray()))
+                                .ToImmutableArray();
+                
+                SlotBackground = File.ReadAllBytes(slotBackgroundPath).ToImmutableArray();
+
+                SlotNumbers = Directory.GetFiles(slotNumbersPath)
+                    .OrderBy(f => int.Parse(Path.GetFileNameWithoutExtension(f)))
+                    .Select(x => File.ReadAllBytes(x).ToImmutableArray())
+                    .ToImmutableArray();
+
+                SlotEmojis = Directory.GetFiles(slotEmojisPath)
+                    .Select(x => File.ReadAllBytes(x).ToImmutableArray())
+                    .ToImmutableArray();
+
+                sw.Stop();
                 _log.Info($"Images loaded after {sw.Elapsed.TotalSeconds:F2}s!");
+                return sw.Elapsed;
             }
             catch (Exception ex)
             {

src/NadekoBot/_Extensions/Extensions.cs

@@ -21,6 +21,9 @@ namespace NadekoBot.Extensions
         private const string arrow_left = "⬅";
         private const string arrow_right = "➡";
 
+        public static Stream ToStream(this IEnumerable<byte> bytes, bool canWrite = false)
+            => new MemoryStream(bytes as byte[] ?? bytes.ToArray(), canWrite);
+
         /// <summary>
         /// danny kamisama
         /// </summary>