add: Added .coins command which lists top 10 cryptos ordered by marketcap, paginated with 10 per page

src/NadekoBot/Modules/Searches/Crypto/CryptoCommands.cs

@@ -105,10 +105,7 @@ public partial class Searches
             await message.ModifyAsync(mp =>
             {
                 mp.Attachments =
-                    new(new[]
-                    {
-                        attachment
-                    });
+                    new(new[] { attachment });
 
                 mp.Embed = eb.WithImageUrl($"attachment://{fileName}").Build();
             });
@@ -165,7 +162,8 @@ public partial class Searches
                                 .WithAuthor($"#{crypto.CmcRank}")
                                 .WithTitle($"{crypto.Name} ({crypto.Symbol})")
                                 .WithUrl($"https://coinmarketcap.com/currencies/{crypto.Slug}/")
-                            .WithThumbnailUrl($"https://s3.coinmarketcap.com/static/img/coins/128x128/{crypto.Id}.png")
+                                .WithThumbnailUrl(
+                                    $"https://s3.coinmarketcap.com/static/img/coins/128x128/{crypto.Id}.png")
                                 .AddField(GetText(strs.market_cap), marketCap, true)
                                 .AddField(GetText(strs.price), price, true)
                                 .AddField(GetText(strs.volume_24h), volume, true)
@@ -192,5 +190,51 @@ public partial class Searches
 
             await ctx.Channel.SendFileAsync(sparkline, fileName, embed: toSend.Build());
         }
+
+        [Cmd]
+        public async Task Coins(int page = 1)
+        {
+            if (--page < 0)
+                return;
+
+            await Response()
+                  .Paginated()
+                  .PageItems(async (page) =>
+                  {
+                      var coins = await _service.GetTopCoins(page + 1);
+
+                      return coins;
+                  })
+                  .PageSize(1)
+                  .Page((items, _) =>
+                  {
+                      var embed = _sender.CreateEmbed()
+                                         .WithOkColor();
+
+                      if (items.Count > 0)
+                      {
+                          foreach (var coin in items)
+                          {
+                              embed.AddField($"#{coin.MarketCapRank} {coin.Symbol} - {coin.Name}",
+                                  $"""
+                                   `Price:` {GetArrowEmoji(coin.PercentChange24h)} {coin.CurrentPrice.ToShortString()}$ ({GetSign(coin.PercentChange24h)}{Math.Round(coin.PercentChange24h, 2)}%)
+                                   `MarketCap:` {coin.MarketCap.ToShortString()}$
+                                   `Supply:` {(coin.CirculatingSupply?.ToShortString() ?? "?")} / {(coin.TotalSupply?.ToShortString() ?? "?")}
+                                   """,
+                                  inline: false);
+                          }
+                      }
+
+                      return embed;
+                  })
+                  .AddFooter(false)
+                  .SendAsync();
+        }
+        
+        private static string GetArrowEmoji(decimal value)
+            => value > 0 ? "▲" : "▼";
+
+        private static string GetSign(decimal value)
+            => value >= 0 ? "+" : "-";
     }
 }

src/NadekoBot/Modules/Searches/Crypto/CryptoService.cs

@@ -6,6 +6,7 @@ using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
 using System.Globalization;
 using System.Net.Http.Json;
+using System.Text.Json.Serialization;
 using System.Xml;
 using Color = SixLabors.ImageSharp.Color;
 using StringExtensions = NadekoBot.Extensions.StringExtensions;
@@ -212,4 +213,46 @@ public class CryptoService : INService
         var points = GetSparklinePointsFromSvgText(str);
         return points;
     }
+
+    public async Task<IReadOnlyCollection<GeckoCoinsResult>?> GetTopCoins(int page)
+    {
+        using var http = _httpFactory.CreateClient();
+
+        http.AddFakeHeaders();
+        
+        var result = await http.GetFromJsonAsync<List<GeckoCoinsResult>>(
+            $"https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&order=market_cap_desc&page={page}&per_page=10");
+
+        return result;
+    }
+}
+
+public sealed class GeckoCoinsResult
+{
+    [JsonPropertyName("id")]
+    public required string Id { get; init; }
+    
+    [JsonPropertyName("name")]
+    public required string Name { get; init; }
+    
+    [JsonPropertyName("symbol")]
+    public required string Symbol { get; init; }
+    
+    [JsonPropertyName("current_price")]
+    public required decimal CurrentPrice { get; init; }
+    
+    [JsonPropertyName("price_change_percentage_24h")]
+    public required decimal PercentChange24h { get; init; }
+    
+    [JsonPropertyName("market_cap")]
+    public required decimal MarketCap { get; init; }
+    
+    [JsonPropertyName("circulating_supply")]
+    public required decimal? CirculatingSupply { get; init; }
+    
+    [JsonPropertyName("total_supply")]
+    public required decimal? TotalSupply { get; init; }
+    
+    [JsonPropertyName("market_cap_rank")]
+    public required int MarketCapRank { get; init; }
 }

src/NadekoBot/_common/Abstractions/Extensions/StringExtensions.cs

@@ -147,4 +147,5 @@ public static class StringExtensions
                 var newString = str.UnescapeUnicodeCodePoint();
                 return newString;
             });
+    
 }

src/NadekoBot/_common/_Extensions/NumberExtensions.cs

@@ -1,7 +1,30 @@
+using System.Globalization;
+
 namespace NadekoBot.Extensions;
 
 public static class NumberExtensions
 {
     public static DateTimeOffset ToUnixTimestamp(this double number)
         => new DateTimeOffset(1970, 1, 1, 0, 0, 0, TimeSpan.Zero).AddSeconds(number);
+
+    public static string ToShortString(this decimal value)
+    {
+        if (value <= 1_000)
+            return Math.Round(value, 2).ToString(CultureInfo.InvariantCulture);
+        if (value <= 1_000_000)
+            return Math.Round(value, 1).ToString(CultureInfo.InvariantCulture);
+        var tokens = "  MBtq";
+        var i = 2;
+        while (true)
+        {
+            var num = (decimal)Math.Pow(1000, i);
+            if (num > value)
+            {
+                var num2 = (decimal)Math.Pow(1000, i - 1);
+                return $"{Math.Round((value / num2), 1)}{tokens[i - 1]}".Trim();
+            }
+
+            i++;
+        }
+    }
 }

src/NadekoBot/data/aliases.yml

@@ -1405,3 +1405,7 @@ prompt:
   - prompt
 honeypot:
   - honeypot
+coins:
+  - coins
+  - crypto
+  - cryptos

src/NadekoBot/data/strings/commands/commands.en-US.yml

@@ -4546,3 +4546,14 @@ honeypot:
     - ''
   params:
     - {}
+coins:
+  desc: |-
+    Shows a list of 10 crypto currencies ordered by market cap.
+    Shows their price, change in the last24h, market cap and circulating and total supply.
+    Paginated with 10 per page.
+  ex:
+    - ''
+    - '2'
+  params:
+    - page:
+        desc: "Page number to show. Starts at 1."